diff options
Diffstat (limited to 'deps/jemalloc/include')
137 files changed, 21337 insertions, 0 deletions
diff --git a/deps/jemalloc/include/jemalloc/internal/activity_callback.h b/deps/jemalloc/include/jemalloc/internal/activity_callback.h new file mode 100644 index 0000000..6c2e84e --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/activity_callback.h @@ -0,0 +1,23 @@ +#ifndef JEMALLOC_INTERNAL_ACTIVITY_CALLBACK_H +#define JEMALLOC_INTERNAL_ACTIVITY_CALLBACK_H + +/* + * The callback to be executed "periodically", in response to some amount of + * allocator activity. + * + * This callback need not be computing any sort of peak (although that's the + * intended first use case), but we drive it from the peak counter, so it's + * keeps things tidy to keep it here. + * + * The calls to this thunk get driven by the peak_event module. + */ +#define ACTIVITY_CALLBACK_THUNK_INITIALIZER {NULL, NULL} +typedef void (*activity_callback_t)(void *uctx, uint64_t allocated, + uint64_t deallocated); +typedef struct activity_callback_thunk_s activity_callback_thunk_t; +struct activity_callback_thunk_s { + activity_callback_t callback; + void *uctx; +}; + +#endif /* JEMALLOC_INTERNAL_ACTIVITY_CALLBACK_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/arena_externs.h b/deps/jemalloc/include/jemalloc/internal/arena_externs.h new file mode 100644 index 0000000..e6fceaa --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/arena_externs.h @@ -0,0 +1,121 @@ +#ifndef JEMALLOC_INTERNAL_ARENA_EXTERNS_H +#define JEMALLOC_INTERNAL_ARENA_EXTERNS_H + +#include "jemalloc/internal/bin.h" +#include "jemalloc/internal/div.h" +#include "jemalloc/internal/extent_dss.h" +#include "jemalloc/internal/hook.h" +#include "jemalloc/internal/pages.h" +#include "jemalloc/internal/stats.h" + +/* + * When the amount of pages to be purged exceeds this amount, deferred purge + * should happen. + */ +#define ARENA_DEFERRED_PURGE_NPAGES_THRESHOLD UINT64_C(1024) + +extern ssize_t opt_dirty_decay_ms; +extern ssize_t opt_muzzy_decay_ms; + +extern percpu_arena_mode_t opt_percpu_arena; +extern const char *percpu_arena_mode_names[]; + +extern div_info_t arena_binind_div_info[SC_NBINS]; + +extern malloc_mutex_t arenas_lock; +extern emap_t arena_emap_global; + +extern size_t opt_oversize_threshold; +extern size_t oversize_threshold; + +/* + * arena_bin_offsets[binind] is the offset of the first bin shard for size class + * binind. + */ +extern uint32_t arena_bin_offsets[SC_NBINS]; + +void arena_basic_stats_merge(tsdn_t *tsdn, arena_t *arena, + unsigned *nthreads, const char **dss, ssize_t *dirty_decay_ms, + ssize_t *muzzy_decay_ms, size_t *nactive, size_t *ndirty, size_t *nmuzzy); +void arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads, + const char **dss, ssize_t *dirty_decay_ms, ssize_t *muzzy_decay_ms, + size_t *nactive, size_t *ndirty, size_t *nmuzzy, arena_stats_t *astats, + bin_stats_data_t *bstats, arena_stats_large_t *lstats, + pac_estats_t *estats, hpa_shard_stats_t *hpastats, sec_stats_t *secstats); +void arena_handle_deferred_work(tsdn_t *tsdn, arena_t *arena); +edata_t *arena_extent_alloc_large(tsdn_t *tsdn, arena_t *arena, + size_t usize, size_t alignment, bool zero); +void arena_extent_dalloc_large_prep(tsdn_t *tsdn, arena_t *arena, + edata_t *edata); +void arena_extent_ralloc_large_shrink(tsdn_t *tsdn, arena_t *arena, + edata_t *edata, size_t oldsize); +void arena_extent_ralloc_large_expand(tsdn_t *tsdn, arena_t *arena, + edata_t *edata, size_t oldsize); +bool arena_decay_ms_set(tsdn_t *tsdn, arena_t *arena, extent_state_t state, + ssize_t decay_ms); +ssize_t arena_decay_ms_get(arena_t *arena, extent_state_t state); +void arena_decay(tsdn_t *tsdn, arena_t *arena, bool is_background_thread, + bool all); +uint64_t arena_time_until_deferred(tsdn_t *tsdn, arena_t *arena); +void arena_do_deferred_work(tsdn_t *tsdn, arena_t *arena); +void arena_reset(tsd_t *tsd, arena_t *arena); +void arena_destroy(tsd_t *tsd, arena_t *arena); +void arena_cache_bin_fill_small(tsdn_t *tsdn, arena_t *arena, + cache_bin_t *cache_bin, cache_bin_info_t *cache_bin_info, szind_t binind, + const unsigned nfill); + +void *arena_malloc_hard(tsdn_t *tsdn, arena_t *arena, size_t size, + szind_t ind, bool zero); +void *arena_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize, + size_t alignment, bool zero, tcache_t *tcache); +void arena_prof_promote(tsdn_t *tsdn, void *ptr, size_t usize); +void arena_dalloc_promoted(tsdn_t *tsdn, void *ptr, tcache_t *tcache, + bool slow_path); +void arena_slab_dalloc(tsdn_t *tsdn, arena_t *arena, edata_t *slab); + +void arena_dalloc_bin_locked_handle_newly_empty(tsdn_t *tsdn, arena_t *arena, + edata_t *slab, bin_t *bin); +void arena_dalloc_bin_locked_handle_newly_nonempty(tsdn_t *tsdn, arena_t *arena, + edata_t *slab, bin_t *bin); +void arena_dalloc_small(tsdn_t *tsdn, void *ptr); +bool arena_ralloc_no_move(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, + size_t extra, bool zero, size_t *newsize); +void *arena_ralloc(tsdn_t *tsdn, arena_t *arena, void *ptr, size_t oldsize, + size_t size, size_t alignment, bool zero, tcache_t *tcache, + hook_ralloc_args_t *hook_args); +dss_prec_t arena_dss_prec_get(arena_t *arena); +ehooks_t *arena_get_ehooks(arena_t *arena); +extent_hooks_t *arena_set_extent_hooks(tsd_t *tsd, arena_t *arena, + extent_hooks_t *extent_hooks); +bool arena_dss_prec_set(arena_t *arena, dss_prec_t dss_prec); +ssize_t arena_dirty_decay_ms_default_get(void); +bool arena_dirty_decay_ms_default_set(ssize_t decay_ms); +ssize_t arena_muzzy_decay_ms_default_get(void); +bool arena_muzzy_decay_ms_default_set(ssize_t decay_ms); +bool arena_retain_grow_limit_get_set(tsd_t *tsd, arena_t *arena, + size_t *old_limit, size_t *new_limit); +unsigned arena_nthreads_get(arena_t *arena, bool internal); +void arena_nthreads_inc(arena_t *arena, bool internal); +void arena_nthreads_dec(arena_t *arena, bool internal); +arena_t *arena_new(tsdn_t *tsdn, unsigned ind, const arena_config_t *config); +bool arena_init_huge(void); +bool arena_is_huge(unsigned arena_ind); +arena_t *arena_choose_huge(tsd_t *tsd); +bin_t *arena_bin_choose(tsdn_t *tsdn, arena_t *arena, szind_t binind, + unsigned *binshard); +size_t arena_fill_small_fresh(tsdn_t *tsdn, arena_t *arena, szind_t binind, + void **ptrs, size_t nfill, bool zero); +bool arena_boot(sc_data_t *sc_data, base_t *base, bool hpa); +void arena_prefork0(tsdn_t *tsdn, arena_t *arena); +void arena_prefork1(tsdn_t *tsdn, arena_t *arena); +void arena_prefork2(tsdn_t *tsdn, arena_t *arena); +void arena_prefork3(tsdn_t *tsdn, arena_t *arena); +void arena_prefork4(tsdn_t *tsdn, arena_t *arena); +void arena_prefork5(tsdn_t *tsdn, arena_t *arena); +void arena_prefork6(tsdn_t *tsdn, arena_t *arena); +void arena_prefork7(tsdn_t *tsdn, arena_t *arena); +void arena_prefork8(tsdn_t *tsdn, arena_t *arena); +void arena_postfork_parent(tsdn_t *tsdn, arena_t *arena); +void arena_postfork_child(tsdn_t *tsdn, arena_t *arena); + +#endif /* JEMALLOC_INTERNAL_ARENA_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/arena_inlines_a.h b/deps/jemalloc/include/jemalloc/internal/arena_inlines_a.h new file mode 100644 index 0000000..8568358 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/arena_inlines_a.h @@ -0,0 +1,24 @@ +#ifndef JEMALLOC_INTERNAL_ARENA_INLINES_A_H +#define JEMALLOC_INTERNAL_ARENA_INLINES_A_H + +static inline unsigned +arena_ind_get(const arena_t *arena) { + return arena->ind; +} + +static inline void +arena_internal_add(arena_t *arena, size_t size) { + atomic_fetch_add_zu(&arena->stats.internal, size, ATOMIC_RELAXED); +} + +static inline void +arena_internal_sub(arena_t *arena, size_t size) { + atomic_fetch_sub_zu(&arena->stats.internal, size, ATOMIC_RELAXED); +} + +static inline size_t +arena_internal_get(arena_t *arena) { + return atomic_load_zu(&arena->stats.internal, ATOMIC_RELAXED); +} + +#endif /* JEMALLOC_INTERNAL_ARENA_INLINES_A_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/arena_inlines_b.h b/deps/jemalloc/include/jemalloc/internal/arena_inlines_b.h new file mode 100644 index 0000000..fa81537 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/arena_inlines_b.h @@ -0,0 +1,550 @@ +#ifndef JEMALLOC_INTERNAL_ARENA_INLINES_B_H +#define JEMALLOC_INTERNAL_ARENA_INLINES_B_H + +#include "jemalloc/internal/div.h" +#include "jemalloc/internal/emap.h" +#include "jemalloc/internal/jemalloc_internal_types.h" +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/rtree.h" +#include "jemalloc/internal/safety_check.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/sz.h" +#include "jemalloc/internal/ticker.h" + +static inline arena_t * +arena_get_from_edata(edata_t *edata) { + return (arena_t *)atomic_load_p(&arenas[edata_arena_ind_get(edata)], + ATOMIC_RELAXED); +} + +JEMALLOC_ALWAYS_INLINE arena_t * +arena_choose_maybe_huge(tsd_t *tsd, arena_t *arena, size_t size) { + if (arena != NULL) { + return arena; + } + + /* + * For huge allocations, use the dedicated huge arena if both are true: + * 1) is using auto arena selection (i.e. arena == NULL), and 2) the + * thread is not assigned to a manual arena. + */ + if (unlikely(size >= oversize_threshold)) { + arena_t *tsd_arena = tsd_arena_get(tsd); + if (tsd_arena == NULL || arena_is_auto(tsd_arena)) { + return arena_choose_huge(tsd); + } + } + + return arena_choose(tsd, NULL); +} + +JEMALLOC_ALWAYS_INLINE void +arena_prof_info_get(tsd_t *tsd, const void *ptr, emap_alloc_ctx_t *alloc_ctx, + prof_info_t *prof_info, bool reset_recent) { + cassert(config_prof); + assert(ptr != NULL); + assert(prof_info != NULL); + + edata_t *edata = NULL; + bool is_slab; + + /* Static check. */ + if (alloc_ctx == NULL) { + edata = emap_edata_lookup(tsd_tsdn(tsd), &arena_emap_global, + ptr); + is_slab = edata_slab_get(edata); + } else if (unlikely(!(is_slab = alloc_ctx->slab))) { + edata = emap_edata_lookup(tsd_tsdn(tsd), &arena_emap_global, + ptr); + } + + if (unlikely(!is_slab)) { + /* edata must have been initialized at this point. */ + assert(edata != NULL); + large_prof_info_get(tsd, edata, prof_info, reset_recent); + } else { + prof_info->alloc_tctx = (prof_tctx_t *)(uintptr_t)1U; + /* + * No need to set other fields in prof_info; they will never be + * accessed if (uintptr_t)alloc_tctx == (uintptr_t)1U. + */ + } +} + +JEMALLOC_ALWAYS_INLINE void +arena_prof_tctx_reset(tsd_t *tsd, const void *ptr, + emap_alloc_ctx_t *alloc_ctx) { + cassert(config_prof); + assert(ptr != NULL); + + /* Static check. */ + if (alloc_ctx == NULL) { + edata_t *edata = emap_edata_lookup(tsd_tsdn(tsd), + &arena_emap_global, ptr); + if (unlikely(!edata_slab_get(edata))) { + large_prof_tctx_reset(edata); + } + } else { + if (unlikely(!alloc_ctx->slab)) { + edata_t *edata = emap_edata_lookup(tsd_tsdn(tsd), + &arena_emap_global, ptr); + large_prof_tctx_reset(edata); + } + } +} + +JEMALLOC_ALWAYS_INLINE void +arena_prof_tctx_reset_sampled(tsd_t *tsd, const void *ptr) { + cassert(config_prof); + assert(ptr != NULL); + + edata_t *edata = emap_edata_lookup(tsd_tsdn(tsd), &arena_emap_global, + ptr); + assert(!edata_slab_get(edata)); + + large_prof_tctx_reset(edata); +} + +JEMALLOC_ALWAYS_INLINE void +arena_prof_info_set(tsd_t *tsd, edata_t *edata, prof_tctx_t *tctx, + size_t size) { + cassert(config_prof); + + assert(!edata_slab_get(edata)); + large_prof_info_set(edata, tctx, size); +} + +JEMALLOC_ALWAYS_INLINE void +arena_decay_ticks(tsdn_t *tsdn, arena_t *arena, unsigned nticks) { + if (unlikely(tsdn_null(tsdn))) { + return; + } + tsd_t *tsd = tsdn_tsd(tsdn); + /* + * We use the ticker_geom_t to avoid having per-arena state in the tsd. + * Instead of having a countdown-until-decay timer running for every + * arena in every thread, we flip a coin once per tick, whose + * probability of coming up heads is 1/nticks; this is effectively the + * operation of the ticker_geom_t. Each arena has the same chance of a + * coinflip coming up heads (1/ARENA_DECAY_NTICKS_PER_UPDATE), so we can + * use a single ticker for all of them. + */ + ticker_geom_t *decay_ticker = tsd_arena_decay_tickerp_get(tsd); + uint64_t *prng_state = tsd_prng_statep_get(tsd); + if (unlikely(ticker_geom_ticks(decay_ticker, prng_state, nticks))) { + arena_decay(tsdn, arena, false, false); + } +} + +JEMALLOC_ALWAYS_INLINE void +arena_decay_tick(tsdn_t *tsdn, arena_t *arena) { + arena_decay_ticks(tsdn, arena, 1); +} + +JEMALLOC_ALWAYS_INLINE void * +arena_malloc(tsdn_t *tsdn, arena_t *arena, size_t size, szind_t ind, bool zero, + tcache_t *tcache, bool slow_path) { + assert(!tsdn_null(tsdn) || tcache == NULL); + + if (likely(tcache != NULL)) { + if (likely(size <= SC_SMALL_MAXCLASS)) { + return tcache_alloc_small(tsdn_tsd(tsdn), arena, + tcache, size, ind, zero, slow_path); + } + if (likely(size <= tcache_maxclass)) { + return tcache_alloc_large(tsdn_tsd(tsdn), arena, + tcache, size, ind, zero, slow_path); + } + /* (size > tcache_maxclass) case falls through. */ + assert(size > tcache_maxclass); + } + + return arena_malloc_hard(tsdn, arena, size, ind, zero); +} + +JEMALLOC_ALWAYS_INLINE arena_t * +arena_aalloc(tsdn_t *tsdn, const void *ptr) { + edata_t *edata = emap_edata_lookup(tsdn, &arena_emap_global, ptr); + unsigned arena_ind = edata_arena_ind_get(edata); + return (arena_t *)atomic_load_p(&arenas[arena_ind], ATOMIC_RELAXED); +} + +JEMALLOC_ALWAYS_INLINE size_t +arena_salloc(tsdn_t *tsdn, const void *ptr) { + assert(ptr != NULL); + emap_alloc_ctx_t alloc_ctx; + emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, &alloc_ctx); + assert(alloc_ctx.szind != SC_NSIZES); + + return sz_index2size(alloc_ctx.szind); +} + +JEMALLOC_ALWAYS_INLINE size_t +arena_vsalloc(tsdn_t *tsdn, const void *ptr) { + /* + * Return 0 if ptr is not within an extent managed by jemalloc. This + * function has two extra costs relative to isalloc(): + * - The rtree calls cannot claim to be dependent lookups, which induces + * rtree lookup load dependencies. + * - The lookup may fail, so there is an extra branch to check for + * failure. + */ + + emap_full_alloc_ctx_t full_alloc_ctx; + bool missing = emap_full_alloc_ctx_try_lookup(tsdn, &arena_emap_global, + ptr, &full_alloc_ctx); + if (missing) { + return 0; + } + + if (full_alloc_ctx.edata == NULL) { + return 0; + } + assert(edata_state_get(full_alloc_ctx.edata) == extent_state_active); + /* Only slab members should be looked up via interior pointers. */ + assert(edata_addr_get(full_alloc_ctx.edata) == ptr + || edata_slab_get(full_alloc_ctx.edata)); + + assert(full_alloc_ctx.szind != SC_NSIZES); + + return sz_index2size(full_alloc_ctx.szind); +} + +JEMALLOC_ALWAYS_INLINE bool +large_dalloc_safety_checks(edata_t *edata, void *ptr, szind_t szind) { + if (!config_opt_safety_checks) { + return false; + } + + /* + * Eagerly detect double free and sized dealloc bugs for large sizes. + * The cost is low enough (as edata will be accessed anyway) to be + * enabled all the time. + */ + if (unlikely(edata == NULL || + edata_state_get(edata) != extent_state_active)) { + safety_check_fail("Invalid deallocation detected: " + "pages being freed (%p) not currently active, " + "possibly caused by double free bugs.", + (uintptr_t)edata_addr_get(edata)); + return true; + } + size_t input_size = sz_index2size(szind); + if (unlikely(input_size != edata_usize_get(edata))) { + safety_check_fail_sized_dealloc(/* current_dealloc */ true, ptr, + /* true_size */ edata_usize_get(edata), input_size); + return true; + } + + return false; +} + +static inline void +arena_dalloc_large_no_tcache(tsdn_t *tsdn, void *ptr, szind_t szind) { + if (config_prof && unlikely(szind < SC_NBINS)) { + arena_dalloc_promoted(tsdn, ptr, NULL, true); + } else { + edata_t *edata = emap_edata_lookup(tsdn, &arena_emap_global, + ptr); + if (large_dalloc_safety_checks(edata, ptr, szind)) { + /* See the comment in isfree. */ + return; + } + large_dalloc(tsdn, edata); + } +} + +static inline void +arena_dalloc_no_tcache(tsdn_t *tsdn, void *ptr) { + assert(ptr != NULL); + + emap_alloc_ctx_t alloc_ctx; + emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, &alloc_ctx); + + if (config_debug) { + edata_t *edata = emap_edata_lookup(tsdn, &arena_emap_global, + ptr); + assert(alloc_ctx.szind == edata_szind_get(edata)); + assert(alloc_ctx.szind < SC_NSIZES); + assert(alloc_ctx.slab == edata_slab_get(edata)); + } + + if (likely(alloc_ctx.slab)) { + /* Small allocation. */ + arena_dalloc_small(tsdn, ptr); + } else { + arena_dalloc_large_no_tcache(tsdn, ptr, alloc_ctx.szind); + } +} + +JEMALLOC_ALWAYS_INLINE void +arena_dalloc_large(tsdn_t *tsdn, void *ptr, tcache_t *tcache, szind_t szind, + bool slow_path) { + if (szind < nhbins) { + if (config_prof && unlikely(szind < SC_NBINS)) { + arena_dalloc_promoted(tsdn, ptr, tcache, slow_path); + } else { + tcache_dalloc_large(tsdn_tsd(tsdn), tcache, ptr, szind, + slow_path); + } + } else { + edata_t *edata = emap_edata_lookup(tsdn, &arena_emap_global, + ptr); + if (large_dalloc_safety_checks(edata, ptr, szind)) { + /* See the comment in isfree. */ + return; + } + large_dalloc(tsdn, edata); + } +} + +JEMALLOC_ALWAYS_INLINE void +arena_dalloc(tsdn_t *tsdn, void *ptr, tcache_t *tcache, + emap_alloc_ctx_t *caller_alloc_ctx, bool slow_path) { + assert(!tsdn_null(tsdn) || tcache == NULL); + assert(ptr != NULL); + + if (unlikely(tcache == NULL)) { + arena_dalloc_no_tcache(tsdn, ptr); + return; + } + + emap_alloc_ctx_t alloc_ctx; + if (caller_alloc_ctx != NULL) { + alloc_ctx = *caller_alloc_ctx; + } else { + util_assume(!tsdn_null(tsdn)); + emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, + &alloc_ctx); + } + + if (config_debug) { + edata_t *edata = emap_edata_lookup(tsdn, &arena_emap_global, + ptr); + assert(alloc_ctx.szind == edata_szind_get(edata)); + assert(alloc_ctx.szind < SC_NSIZES); + assert(alloc_ctx.slab == edata_slab_get(edata)); + } + + if (likely(alloc_ctx.slab)) { + /* Small allocation. */ + tcache_dalloc_small(tsdn_tsd(tsdn), tcache, ptr, + alloc_ctx.szind, slow_path); + } else { + arena_dalloc_large(tsdn, ptr, tcache, alloc_ctx.szind, + slow_path); + } +} + +static inline void +arena_sdalloc_no_tcache(tsdn_t *tsdn, void *ptr, size_t size) { + assert(ptr != NULL); + assert(size <= SC_LARGE_MAXCLASS); + + emap_alloc_ctx_t alloc_ctx; + if (!config_prof || !opt_prof) { + /* + * There is no risk of being confused by a promoted sampled + * object, so base szind and slab on the given size. + */ + alloc_ctx.szind = sz_size2index(size); + alloc_ctx.slab = (alloc_ctx.szind < SC_NBINS); + } + + if ((config_prof && opt_prof) || config_debug) { + emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, + &alloc_ctx); + + assert(alloc_ctx.szind == sz_size2index(size)); + assert((config_prof && opt_prof) + || alloc_ctx.slab == (alloc_ctx.szind < SC_NBINS)); + + if (config_debug) { + edata_t *edata = emap_edata_lookup(tsdn, + &arena_emap_global, ptr); + assert(alloc_ctx.szind == edata_szind_get(edata)); + assert(alloc_ctx.slab == edata_slab_get(edata)); + } + } + + if (likely(alloc_ctx.slab)) { + /* Small allocation. */ + arena_dalloc_small(tsdn, ptr); + } else { + arena_dalloc_large_no_tcache(tsdn, ptr, alloc_ctx.szind); + } +} + +JEMALLOC_ALWAYS_INLINE void +arena_sdalloc(tsdn_t *tsdn, void *ptr, size_t size, tcache_t *tcache, + emap_alloc_ctx_t *caller_alloc_ctx, bool slow_path) { + assert(!tsdn_null(tsdn) || tcache == NULL); + assert(ptr != NULL); + assert(size <= SC_LARGE_MAXCLASS); + + if (unlikely(tcache == NULL)) { + arena_sdalloc_no_tcache(tsdn, ptr, size); + return; + } + + emap_alloc_ctx_t alloc_ctx; + if (config_prof && opt_prof) { + if (caller_alloc_ctx == NULL) { + /* Uncommon case and should be a static check. */ + emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, + &alloc_ctx); + assert(alloc_ctx.szind == sz_size2index(size)); + } else { + alloc_ctx = *caller_alloc_ctx; + } + } else { + /* + * There is no risk of being confused by a promoted sampled + * object, so base szind and slab on the given size. + */ + alloc_ctx.szind = sz_size2index(size); + alloc_ctx.slab = (alloc_ctx.szind < SC_NBINS); + } + + if (config_debug) { + edata_t *edata = emap_edata_lookup(tsdn, &arena_emap_global, + ptr); + assert(alloc_ctx.szind == edata_szind_get(edata)); + assert(alloc_ctx.slab == edata_slab_get(edata)); + } + + if (likely(alloc_ctx.slab)) { + /* Small allocation. */ + tcache_dalloc_small(tsdn_tsd(tsdn), tcache, ptr, + alloc_ctx.szind, slow_path); + } else { + arena_dalloc_large(tsdn, ptr, tcache, alloc_ctx.szind, + slow_path); + } +} + +static inline void +arena_cache_oblivious_randomize(tsdn_t *tsdn, arena_t *arena, edata_t *edata, + size_t alignment) { + assert(edata_base_get(edata) == edata_addr_get(edata)); + + if (alignment < PAGE) { + unsigned lg_range = LG_PAGE - + lg_floor(CACHELINE_CEILING(alignment)); + size_t r; + if (!tsdn_null(tsdn)) { + tsd_t *tsd = tsdn_tsd(tsdn); + r = (size_t)prng_lg_range_u64( + tsd_prng_statep_get(tsd), lg_range); + } else { + uint64_t stack_value = (uint64_t)(uintptr_t)&r; + r = (size_t)prng_lg_range_u64(&stack_value, lg_range); + } + uintptr_t random_offset = ((uintptr_t)r) << (LG_PAGE - + lg_range); + edata->e_addr = (void *)((uintptr_t)edata->e_addr + + random_offset); + assert(ALIGNMENT_ADDR2BASE(edata->e_addr, alignment) == + edata->e_addr); + } +} + +/* + * The dalloc bin info contains just the information that the common paths need + * during tcache flushes. By force-inlining these paths, and using local copies + * of data (so that the compiler knows it's constant), we avoid a whole bunch of + * redundant loads and stores by leaving this information in registers. + */ +typedef struct arena_dalloc_bin_locked_info_s arena_dalloc_bin_locked_info_t; +struct arena_dalloc_bin_locked_info_s { + div_info_t div_info; + uint32_t nregs; + uint64_t ndalloc; +}; + +JEMALLOC_ALWAYS_INLINE size_t +arena_slab_regind(arena_dalloc_bin_locked_info_t *info, szind_t binind, + edata_t *slab, const void *ptr) { + size_t diff, regind; + + /* Freeing a pointer outside the slab can cause assertion failure. */ + assert((uintptr_t)ptr >= (uintptr_t)edata_addr_get(slab)); + assert((uintptr_t)ptr < (uintptr_t)edata_past_get(slab)); + /* Freeing an interior pointer can cause assertion failure. */ + assert(((uintptr_t)ptr - (uintptr_t)edata_addr_get(slab)) % + (uintptr_t)bin_infos[binind].reg_size == 0); + + diff = (size_t)((uintptr_t)ptr - (uintptr_t)edata_addr_get(slab)); + + /* Avoid doing division with a variable divisor. */ + regind = div_compute(&info->div_info, diff); + + assert(regind < bin_infos[binind].nregs); + + return regind; +} + +JEMALLOC_ALWAYS_INLINE void +arena_dalloc_bin_locked_begin(arena_dalloc_bin_locked_info_t *info, + szind_t binind) { + info->div_info = arena_binind_div_info[binind]; + info->nregs = bin_infos[binind].nregs; + info->ndalloc = 0; +} + +/* + * Does the deallocation work associated with freeing a single pointer (a + * "step") in between a arena_dalloc_bin_locked begin and end call. + * + * Returns true if arena_slab_dalloc must be called on slab. Doesn't do + * stats updates, which happen during finish (this lets running counts get left + * in a register). + */ +JEMALLOC_ALWAYS_INLINE bool +arena_dalloc_bin_locked_step(tsdn_t *tsdn, arena_t *arena, bin_t *bin, + arena_dalloc_bin_locked_info_t *info, szind_t binind, edata_t *slab, + void *ptr) { + const bin_info_t *bin_info = &bin_infos[binind]; + size_t regind = arena_slab_regind(info, binind, slab, ptr); + slab_data_t *slab_data = edata_slab_data_get(slab); + + assert(edata_nfree_get(slab) < bin_info->nregs); + /* Freeing an unallocated pointer can cause assertion failure. */ + assert(bitmap_get(slab_data->bitmap, &bin_info->bitmap_info, regind)); + + bitmap_unset(slab_data->bitmap, &bin_info->bitmap_info, regind); + edata_nfree_inc(slab); + + if (config_stats) { + info->ndalloc++; + } + + unsigned nfree = edata_nfree_get(slab); + if (nfree == bin_info->nregs) { + arena_dalloc_bin_locked_handle_newly_empty(tsdn, arena, slab, + bin); + return true; + } else if (nfree == 1 && slab != bin->slabcur) { + arena_dalloc_bin_locked_handle_newly_nonempty(tsdn, arena, slab, + bin); + } + return false; +} + +JEMALLOC_ALWAYS_INLINE void +arena_dalloc_bin_locked_finish(tsdn_t *tsdn, arena_t *arena, bin_t *bin, + arena_dalloc_bin_locked_info_t *info) { + if (config_stats) { + bin->stats.ndalloc += info->ndalloc; + assert(bin->stats.curregs >= (size_t)info->ndalloc); + bin->stats.curregs -= (size_t)info->ndalloc; + } +} + +static inline bin_t * +arena_get_bin(arena_t *arena, szind_t binind, unsigned binshard) { + bin_t *shard0 = (bin_t *)((uintptr_t)arena + arena_bin_offsets[binind]); + return shard0 + binshard; +} + +#endif /* JEMALLOC_INTERNAL_ARENA_INLINES_B_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/arena_stats.h b/deps/jemalloc/include/jemalloc/internal/arena_stats.h new file mode 100644 index 0000000..15f1d34 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/arena_stats.h @@ -0,0 +1,114 @@ +#ifndef JEMALLOC_INTERNAL_ARENA_STATS_H +#define JEMALLOC_INTERNAL_ARENA_STATS_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/lockedint.h" +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/mutex_prof.h" +#include "jemalloc/internal/pa.h" +#include "jemalloc/internal/sc.h" + +JEMALLOC_DIAGNOSTIC_DISABLE_SPURIOUS + +typedef struct arena_stats_large_s arena_stats_large_t; +struct arena_stats_large_s { + /* + * Total number of allocation/deallocation requests served directly by + * the arena. + */ + locked_u64_t nmalloc; + locked_u64_t ndalloc; + + /* + * Number of allocation requests that correspond to this size class. + * This includes requests served by tcache, though tcache only + * periodically merges into this counter. + */ + locked_u64_t nrequests; /* Partially derived. */ + /* + * Number of tcache fills / flushes for large (similarly, periodically + * merged). Note that there is no large tcache batch-fill currently + * (i.e. only fill 1 at a time); however flush may be batched. + */ + locked_u64_t nfills; /* Partially derived. */ + locked_u64_t nflushes; /* Partially derived. */ + + /* Current number of allocations of this size class. */ + size_t curlextents; /* Derived. */ +}; + +/* + * Arena stats. Note that fields marked "derived" are not directly maintained + * within the arena code; rather their values are derived during stats merge + * requests. + */ +typedef struct arena_stats_s arena_stats_t; +struct arena_stats_s { + LOCKEDINT_MTX_DECLARE(mtx) + + /* + * resident includes the base stats -- that's why it lives here and not + * in pa_shard_stats_t. + */ + size_t base; /* Derived. */ + size_t resident; /* Derived. */ + size_t metadata_thp; /* Derived. */ + size_t mapped; /* Derived. */ + + atomic_zu_t internal; + + size_t allocated_large; /* Derived. */ + uint64_t nmalloc_large; /* Derived. */ + uint64_t ndalloc_large; /* Derived. */ + uint64_t nfills_large; /* Derived. */ + uint64_t nflushes_large; /* Derived. */ + uint64_t nrequests_large; /* Derived. */ + + /* + * The stats logically owned by the pa_shard in the same arena. This + * lives here only because it's convenient for the purposes of the ctl + * module -- it only knows about the single arena_stats. + */ + pa_shard_stats_t pa_shard_stats; + + /* Number of bytes cached in tcache associated with this arena. */ + size_t tcache_bytes; /* Derived. */ + size_t tcache_stashed_bytes; /* Derived. */ + + mutex_prof_data_t mutex_prof_data[mutex_prof_num_arena_mutexes]; + + /* One element for each large size class. */ + arena_stats_large_t lstats[SC_NSIZES - SC_NBINS]; + + /* Arena uptime. */ + nstime_t uptime; +}; + +static inline bool +arena_stats_init(tsdn_t *tsdn, arena_stats_t *arena_stats) { + if (config_debug) { + for (size_t i = 0; i < sizeof(arena_stats_t); i++) { + assert(((char *)arena_stats)[i] == 0); + } + } + if (LOCKEDINT_MTX_INIT(arena_stats->mtx, "arena_stats", + WITNESS_RANK_ARENA_STATS, malloc_mutex_rank_exclusive)) { + return true; + } + /* Memory is zeroed, so there is no need to clear stats. */ + return false; +} + +static inline void +arena_stats_large_flush_nrequests_add(tsdn_t *tsdn, arena_stats_t *arena_stats, + szind_t szind, uint64_t nrequests) { + LOCKEDINT_MTX_LOCK(tsdn, arena_stats->mtx); + arena_stats_large_t *lstats = &arena_stats->lstats[szind - SC_NBINS]; + locked_inc_u64(tsdn, LOCKEDINT_MTX(arena_stats->mtx), + &lstats->nrequests, nrequests); + locked_inc_u64(tsdn, LOCKEDINT_MTX(arena_stats->mtx), + &lstats->nflushes, 1); + LOCKEDINT_MTX_UNLOCK(tsdn, arena_stats->mtx); +} + +#endif /* JEMALLOC_INTERNAL_ARENA_STATS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/arena_structs.h b/deps/jemalloc/include/jemalloc/internal/arena_structs.h new file mode 100644 index 0000000..e2a5a40 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/arena_structs.h @@ -0,0 +1,101 @@ +#ifndef JEMALLOC_INTERNAL_ARENA_STRUCTS_H +#define JEMALLOC_INTERNAL_ARENA_STRUCTS_H + +#include "jemalloc/internal/arena_stats.h" +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/bin.h" +#include "jemalloc/internal/bitmap.h" +#include "jemalloc/internal/counter.h" +#include "jemalloc/internal/ecache.h" +#include "jemalloc/internal/edata_cache.h" +#include "jemalloc/internal/extent_dss.h" +#include "jemalloc/internal/jemalloc_internal_types.h" +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/nstime.h" +#include "jemalloc/internal/pa.h" +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/ticker.h" + +struct arena_s { + /* + * Number of threads currently assigned to this arena. Each thread has + * two distinct assignments, one for application-serving allocation, and + * the other for internal metadata allocation. Internal metadata must + * not be allocated from arenas explicitly created via the arenas.create + * mallctl, because the arena.<i>.reset mallctl indiscriminately + * discards all allocations for the affected arena. + * + * 0: Application allocation. + * 1: Internal metadata allocation. + * + * Synchronization: atomic. + */ + atomic_u_t nthreads[2]; + + /* Next bin shard for binding new threads. Synchronization: atomic. */ + atomic_u_t binshard_next; + + /* + * When percpu_arena is enabled, to amortize the cost of reading / + * updating the current CPU id, track the most recent thread accessing + * this arena, and only read CPU if there is a mismatch. + */ + tsdn_t *last_thd; + + /* Synchronization: internal. */ + arena_stats_t stats; + + /* + * Lists of tcaches and cache_bin_array_descriptors for extant threads + * associated with this arena. Stats from these are merged + * incrementally, and at exit if opt_stats_print is enabled. + * + * Synchronization: tcache_ql_mtx. + */ + ql_head(tcache_slow_t) tcache_ql; + ql_head(cache_bin_array_descriptor_t) cache_bin_array_descriptor_ql; + malloc_mutex_t tcache_ql_mtx; + + /* + * Represents a dss_prec_t, but atomically. + * + * Synchronization: atomic. + */ + atomic_u_t dss_prec; + + /* + * Extant large allocations. + * + * Synchronization: large_mtx. + */ + edata_list_active_t large; + /* Synchronizes all large allocation/update/deallocation. */ + malloc_mutex_t large_mtx; + + /* The page-level allocator shard this arena uses. */ + pa_shard_t pa_shard; + + /* + * A cached copy of base->ind. This can get accessed on hot paths; + * looking it up in base requires an extra pointer hop / cache miss. + */ + unsigned ind; + + /* + * Base allocator, from which arena metadata are allocated. + * + * Synchronization: internal. + */ + base_t *base; + /* Used to determine uptime. Read-only after initialization. */ + nstime_t create_time; + + /* + * The arena is allocated alongside its bins; really this is a + * dynamically sized array determined by the binshard settings. + */ + bin_t bins[0]; +}; + +#endif /* JEMALLOC_INTERNAL_ARENA_STRUCTS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/arena_types.h b/deps/jemalloc/include/jemalloc/internal/arena_types.h new file mode 100644 index 0000000..d0e1291 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/arena_types.h @@ -0,0 +1,58 @@ +#ifndef JEMALLOC_INTERNAL_ARENA_TYPES_H +#define JEMALLOC_INTERNAL_ARENA_TYPES_H + +#include "jemalloc/internal/sc.h" + +/* Default decay times in milliseconds. */ +#define DIRTY_DECAY_MS_DEFAULT ZD(10 * 1000) +#define MUZZY_DECAY_MS_DEFAULT (0) +/* Number of event ticks between time checks. */ +#define ARENA_DECAY_NTICKS_PER_UPDATE 1000 + +typedef struct arena_decay_s arena_decay_t; +typedef struct arena_s arena_t; + +typedef enum { + percpu_arena_mode_names_base = 0, /* Used for options processing. */ + + /* + * *_uninit are used only during bootstrapping, and must correspond + * to initialized variant plus percpu_arena_mode_enabled_base. + */ + percpu_arena_uninit = 0, + per_phycpu_arena_uninit = 1, + + /* All non-disabled modes must come after percpu_arena_disabled. */ + percpu_arena_disabled = 2, + + percpu_arena_mode_names_limit = 3, /* Used for options processing. */ + percpu_arena_mode_enabled_base = 3, + + percpu_arena = 3, + per_phycpu_arena = 4 /* Hyper threads share arena. */ +} percpu_arena_mode_t; + +#define PERCPU_ARENA_ENABLED(m) ((m) >= percpu_arena_mode_enabled_base) +#define PERCPU_ARENA_DEFAULT percpu_arena_disabled + +/* + * When allocation_size >= oversize_threshold, use the dedicated huge arena + * (unless have explicitly spicified arena index). 0 disables the feature. + */ +#define OVERSIZE_THRESHOLD_DEFAULT (8 << 20) + +struct arena_config_s { + /* extent hooks to be used for the arena */ + extent_hooks_t *extent_hooks; + + /* + * Use extent hooks for metadata (base) allocations when true. + */ + bool metadata_use_hooks; +}; + +typedef struct arena_config_s arena_config_t; + +extern const arena_config_t arena_config_default; + +#endif /* JEMALLOC_INTERNAL_ARENA_TYPES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/assert.h b/deps/jemalloc/include/jemalloc/internal/assert.h new file mode 100644 index 0000000..be4d45b --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/assert.h @@ -0,0 +1,56 @@ +#include "jemalloc/internal/malloc_io.h" +#include "jemalloc/internal/util.h" + +/* + * Define a custom assert() in order to reduce the chances of deadlock during + * assertion failure. + */ +#ifndef assert +#define assert(e) do { \ + if (unlikely(config_debug && !(e))) { \ + malloc_printf( \ + "<jemalloc>: %s:%d: Failed assertion: \"%s\"\n", \ + __FILE__, __LINE__, #e); \ + abort(); \ + } \ +} while (0) +#endif + +#ifndef not_reached +#define not_reached() do { \ + if (config_debug) { \ + malloc_printf( \ + "<jemalloc>: %s:%d: Unreachable code reached\n", \ + __FILE__, __LINE__); \ + abort(); \ + } \ + unreachable(); \ +} while (0) +#endif + +#ifndef not_implemented +#define not_implemented() do { \ + if (config_debug) { \ + malloc_printf("<jemalloc>: %s:%d: Not implemented\n", \ + __FILE__, __LINE__); \ + abort(); \ + } \ +} while (0) +#endif + +#ifndef assert_not_implemented +#define assert_not_implemented(e) do { \ + if (unlikely(config_debug && !(e))) { \ + not_implemented(); \ + } \ +} while (0) +#endif + +/* Use to assert a particular configuration, e.g., cassert(config_debug). */ +#ifndef cassert +#define cassert(c) do { \ + if (unlikely(!(c))) { \ + not_reached(); \ + } \ +} while (0) +#endif diff --git a/deps/jemalloc/include/jemalloc/internal/atomic.h b/deps/jemalloc/include/jemalloc/internal/atomic.h new file mode 100644 index 0000000..c0f7312 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/atomic.h @@ -0,0 +1,107 @@ +#ifndef JEMALLOC_INTERNAL_ATOMIC_H +#define JEMALLOC_INTERNAL_ATOMIC_H + +#define ATOMIC_INLINE JEMALLOC_ALWAYS_INLINE + +#define JEMALLOC_U8_ATOMICS +#if defined(JEMALLOC_GCC_ATOMIC_ATOMICS) +# include "jemalloc/internal/atomic_gcc_atomic.h" +# if !defined(JEMALLOC_GCC_U8_ATOMIC_ATOMICS) +# undef JEMALLOC_U8_ATOMICS +# endif +#elif defined(JEMALLOC_GCC_SYNC_ATOMICS) +# include "jemalloc/internal/atomic_gcc_sync.h" +# if !defined(JEMALLOC_GCC_U8_SYNC_ATOMICS) +# undef JEMALLOC_U8_ATOMICS +# endif +#elif defined(_MSC_VER) +# include "jemalloc/internal/atomic_msvc.h" +#elif defined(JEMALLOC_C11_ATOMICS) +# include "jemalloc/internal/atomic_c11.h" +#else +# error "Don't have atomics implemented on this platform." +#endif + +/* + * This header gives more or less a backport of C11 atomics. The user can write + * JEMALLOC_GENERATE_ATOMICS(type, short_type, lg_sizeof_type); to generate + * counterparts of the C11 atomic functions for type, as so: + * JEMALLOC_GENERATE_ATOMICS(int *, pi, 3); + * and then write things like: + * int *some_ptr; + * atomic_pi_t atomic_ptr_to_int; + * atomic_store_pi(&atomic_ptr_to_int, some_ptr, ATOMIC_RELAXED); + * int *prev_value = atomic_exchange_pi(&ptr_to_int, NULL, ATOMIC_ACQ_REL); + * assert(some_ptr == prev_value); + * and expect things to work in the obvious way. + * + * Also included (with naming differences to avoid conflicts with the standard + * library): + * atomic_fence(atomic_memory_order_t) (mimics C11's atomic_thread_fence). + * ATOMIC_INIT (mimics C11's ATOMIC_VAR_INIT). + */ + +/* + * Pure convenience, so that we don't have to type "atomic_memory_order_" + * quite so often. + */ +#define ATOMIC_RELAXED atomic_memory_order_relaxed +#define ATOMIC_ACQUIRE atomic_memory_order_acquire +#define ATOMIC_RELEASE atomic_memory_order_release +#define ATOMIC_ACQ_REL atomic_memory_order_acq_rel +#define ATOMIC_SEQ_CST atomic_memory_order_seq_cst + +/* + * Another convenience -- simple atomic helper functions. + */ +#define JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(type, short_type, \ + lg_size) \ + JEMALLOC_GENERATE_INT_ATOMICS(type, short_type, lg_size) \ + ATOMIC_INLINE void \ + atomic_load_add_store_##short_type(atomic_##short_type##_t *a, \ + type inc) { \ + type oldval = atomic_load_##short_type(a, ATOMIC_RELAXED); \ + type newval = oldval + inc; \ + atomic_store_##short_type(a, newval, ATOMIC_RELAXED); \ + } \ + ATOMIC_INLINE void \ + atomic_load_sub_store_##short_type(atomic_##short_type##_t *a, \ + type inc) { \ + type oldval = atomic_load_##short_type(a, ATOMIC_RELAXED); \ + type newval = oldval - inc; \ + atomic_store_##short_type(a, newval, ATOMIC_RELAXED); \ + } + +/* + * Not all platforms have 64-bit atomics. If we do, this #define exposes that + * fact. + */ +#if (LG_SIZEOF_PTR == 3 || LG_SIZEOF_INT == 3) +# define JEMALLOC_ATOMIC_U64 +#endif + +JEMALLOC_GENERATE_ATOMICS(void *, p, LG_SIZEOF_PTR) + +/* + * There's no actual guarantee that sizeof(bool) == 1, but it's true on the only + * platform that actually needs to know the size, MSVC. + */ +JEMALLOC_GENERATE_ATOMICS(bool, b, 0) + +JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(unsigned, u, LG_SIZEOF_INT) + +JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(size_t, zu, LG_SIZEOF_PTR) + +JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(ssize_t, zd, LG_SIZEOF_PTR) + +JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(uint8_t, u8, 0) + +JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(uint32_t, u32, 2) + +#ifdef JEMALLOC_ATOMIC_U64 +JEMALLOC_GENERATE_EXPANDED_INT_ATOMICS(uint64_t, u64, 3) +#endif + +#undef ATOMIC_INLINE + +#endif /* JEMALLOC_INTERNAL_ATOMIC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/atomic_c11.h b/deps/jemalloc/include/jemalloc/internal/atomic_c11.h new file mode 100644 index 0000000..a5f9313 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/atomic_c11.h @@ -0,0 +1,97 @@ +#ifndef JEMALLOC_INTERNAL_ATOMIC_C11_H +#define JEMALLOC_INTERNAL_ATOMIC_C11_H + +#include <stdatomic.h> + +#define ATOMIC_INIT(...) ATOMIC_VAR_INIT(__VA_ARGS__) + +#define atomic_memory_order_t memory_order +#define atomic_memory_order_relaxed memory_order_relaxed +#define atomic_memory_order_acquire memory_order_acquire +#define atomic_memory_order_release memory_order_release +#define atomic_memory_order_acq_rel memory_order_acq_rel +#define atomic_memory_order_seq_cst memory_order_seq_cst + +#define atomic_fence atomic_thread_fence + +#define JEMALLOC_GENERATE_ATOMICS(type, short_type, \ + /* unused */ lg_size) \ +typedef _Atomic(type) atomic_##short_type##_t; \ + \ +ATOMIC_INLINE type \ +atomic_load_##short_type(const atomic_##short_type##_t *a, \ + atomic_memory_order_t mo) { \ + /* \ + * A strict interpretation of the C standard prevents \ + * atomic_load from taking a const argument, but it's \ + * convenient for our purposes. This cast is a workaround. \ + */ \ + atomic_##short_type##_t* a_nonconst = \ + (atomic_##short_type##_t*)a; \ + return atomic_load_explicit(a_nonconst, mo); \ +} \ + \ +ATOMIC_INLINE void \ +atomic_store_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + atomic_store_explicit(a, val, mo); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_exchange_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return atomic_exchange_explicit(a, val, mo); \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_weak_##short_type(atomic_##short_type##_t *a, \ + type *expected, type desired, atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + return atomic_compare_exchange_weak_explicit(a, expected, \ + desired, success_mo, failure_mo); \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_strong_##short_type(atomic_##short_type##_t *a, \ + type *expected, type desired, atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + return atomic_compare_exchange_strong_explicit(a, expected, \ + desired, success_mo, failure_mo); \ +} + +/* + * Integral types have some special operations available that non-integral ones + * lack. + */ +#define JEMALLOC_GENERATE_INT_ATOMICS(type, short_type, \ + /* unused */ lg_size) \ +JEMALLOC_GENERATE_ATOMICS(type, short_type, /* unused */ lg_size) \ + \ +ATOMIC_INLINE type \ +atomic_fetch_add_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return atomic_fetch_add_explicit(a, val, mo); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_sub_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return atomic_fetch_sub_explicit(a, val, mo); \ +} \ +ATOMIC_INLINE type \ +atomic_fetch_and_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return atomic_fetch_and_explicit(a, val, mo); \ +} \ +ATOMIC_INLINE type \ +atomic_fetch_or_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return atomic_fetch_or_explicit(a, val, mo); \ +} \ +ATOMIC_INLINE type \ +atomic_fetch_xor_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return atomic_fetch_xor_explicit(a, val, mo); \ +} + +#endif /* JEMALLOC_INTERNAL_ATOMIC_C11_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/atomic_gcc_atomic.h b/deps/jemalloc/include/jemalloc/internal/atomic_gcc_atomic.h new file mode 100644 index 0000000..471515e --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/atomic_gcc_atomic.h @@ -0,0 +1,129 @@ +#ifndef JEMALLOC_INTERNAL_ATOMIC_GCC_ATOMIC_H +#define JEMALLOC_INTERNAL_ATOMIC_GCC_ATOMIC_H + +#include "jemalloc/internal/assert.h" + +#define ATOMIC_INIT(...) {__VA_ARGS__} + +typedef enum { + atomic_memory_order_relaxed, + atomic_memory_order_acquire, + atomic_memory_order_release, + atomic_memory_order_acq_rel, + atomic_memory_order_seq_cst +} atomic_memory_order_t; + +ATOMIC_INLINE int +atomic_enum_to_builtin(atomic_memory_order_t mo) { + switch (mo) { + case atomic_memory_order_relaxed: + return __ATOMIC_RELAXED; + case atomic_memory_order_acquire: + return __ATOMIC_ACQUIRE; + case atomic_memory_order_release: + return __ATOMIC_RELEASE; + case atomic_memory_order_acq_rel: + return __ATOMIC_ACQ_REL; + case atomic_memory_order_seq_cst: + return __ATOMIC_SEQ_CST; + } + /* Can't happen; the switch is exhaustive. */ + not_reached(); +} + +ATOMIC_INLINE void +atomic_fence(atomic_memory_order_t mo) { + __atomic_thread_fence(atomic_enum_to_builtin(mo)); +} + +#define JEMALLOC_GENERATE_ATOMICS(type, short_type, \ + /* unused */ lg_size) \ +typedef struct { \ + type repr; \ +} atomic_##short_type##_t; \ + \ +ATOMIC_INLINE type \ +atomic_load_##short_type(const atomic_##short_type##_t *a, \ + atomic_memory_order_t mo) { \ + type result; \ + __atomic_load(&a->repr, &result, atomic_enum_to_builtin(mo)); \ + return result; \ +} \ + \ +ATOMIC_INLINE void \ +atomic_store_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + __atomic_store(&a->repr, &val, atomic_enum_to_builtin(mo)); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_exchange_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + type result; \ + __atomic_exchange(&a->repr, &val, &result, \ + atomic_enum_to_builtin(mo)); \ + return result; \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_weak_##short_type(atomic_##short_type##_t *a, \ + UNUSED type *expected, type desired, \ + atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + return __atomic_compare_exchange(&a->repr, expected, &desired, \ + true, atomic_enum_to_builtin(success_mo), \ + atomic_enum_to_builtin(failure_mo)); \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_strong_##short_type(atomic_##short_type##_t *a, \ + UNUSED type *expected, type desired, \ + atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + return __atomic_compare_exchange(&a->repr, expected, &desired, \ + false, \ + atomic_enum_to_builtin(success_mo), \ + atomic_enum_to_builtin(failure_mo)); \ +} + + +#define JEMALLOC_GENERATE_INT_ATOMICS(type, short_type, \ + /* unused */ lg_size) \ +JEMALLOC_GENERATE_ATOMICS(type, short_type, /* unused */ lg_size) \ + \ +ATOMIC_INLINE type \ +atomic_fetch_add_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __atomic_fetch_add(&a->repr, val, \ + atomic_enum_to_builtin(mo)); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_sub_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __atomic_fetch_sub(&a->repr, val, \ + atomic_enum_to_builtin(mo)); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_and_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __atomic_fetch_and(&a->repr, val, \ + atomic_enum_to_builtin(mo)); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_or_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __atomic_fetch_or(&a->repr, val, \ + atomic_enum_to_builtin(mo)); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_xor_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __atomic_fetch_xor(&a->repr, val, \ + atomic_enum_to_builtin(mo)); \ +} + +#endif /* JEMALLOC_INTERNAL_ATOMIC_GCC_ATOMIC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/atomic_gcc_sync.h b/deps/jemalloc/include/jemalloc/internal/atomic_gcc_sync.h new file mode 100644 index 0000000..e02b7cb --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/atomic_gcc_sync.h @@ -0,0 +1,195 @@ +#ifndef JEMALLOC_INTERNAL_ATOMIC_GCC_SYNC_H +#define JEMALLOC_INTERNAL_ATOMIC_GCC_SYNC_H + +#define ATOMIC_INIT(...) {__VA_ARGS__} + +typedef enum { + atomic_memory_order_relaxed, + atomic_memory_order_acquire, + atomic_memory_order_release, + atomic_memory_order_acq_rel, + atomic_memory_order_seq_cst +} atomic_memory_order_t; + +ATOMIC_INLINE void +atomic_fence(atomic_memory_order_t mo) { + /* Easy cases first: no barrier, and full barrier. */ + if (mo == atomic_memory_order_relaxed) { + asm volatile("" ::: "memory"); + return; + } + if (mo == atomic_memory_order_seq_cst) { + asm volatile("" ::: "memory"); + __sync_synchronize(); + asm volatile("" ::: "memory"); + return; + } + asm volatile("" ::: "memory"); +# if defined(__i386__) || defined(__x86_64__) + /* This is implicit on x86. */ +# elif defined(__ppc64__) + asm volatile("lwsync"); +# elif defined(__ppc__) + asm volatile("sync"); +# elif defined(__sparc__) && defined(__arch64__) + if (mo == atomic_memory_order_acquire) { + asm volatile("membar #LoadLoad | #LoadStore"); + } else if (mo == atomic_memory_order_release) { + asm volatile("membar #LoadStore | #StoreStore"); + } else { + asm volatile("membar #LoadLoad | #LoadStore | #StoreStore"); + } +# else + __sync_synchronize(); +# endif + asm volatile("" ::: "memory"); +} + +/* + * A correct implementation of seq_cst loads and stores on weakly ordered + * architectures could do either of the following: + * 1. store() is weak-fence -> store -> strong fence, load() is load -> + * strong-fence. + * 2. store() is strong-fence -> store, load() is strong-fence -> load -> + * weak-fence. + * The tricky thing is, load() and store() above can be the load or store + * portions of a gcc __sync builtin, so we have to follow GCC's lead, which + * means going with strategy 2. + * On strongly ordered architectures, the natural strategy is to stick a strong + * fence after seq_cst stores, and have naked loads. So we want the strong + * fences in different places on different architectures. + * atomic_pre_sc_load_fence and atomic_post_sc_store_fence allow us to + * accomplish this. + */ + +ATOMIC_INLINE void +atomic_pre_sc_load_fence() { +# if defined(__i386__) || defined(__x86_64__) || \ + (defined(__sparc__) && defined(__arch64__)) + atomic_fence(atomic_memory_order_relaxed); +# else + atomic_fence(atomic_memory_order_seq_cst); +# endif +} + +ATOMIC_INLINE void +atomic_post_sc_store_fence() { +# if defined(__i386__) || defined(__x86_64__) || \ + (defined(__sparc__) && defined(__arch64__)) + atomic_fence(atomic_memory_order_seq_cst); +# else + atomic_fence(atomic_memory_order_relaxed); +# endif + +} + +#define JEMALLOC_GENERATE_ATOMICS(type, short_type, \ + /* unused */ lg_size) \ +typedef struct { \ + type volatile repr; \ +} atomic_##short_type##_t; \ + \ +ATOMIC_INLINE type \ +atomic_load_##short_type(const atomic_##short_type##_t *a, \ + atomic_memory_order_t mo) { \ + if (mo == atomic_memory_order_seq_cst) { \ + atomic_pre_sc_load_fence(); \ + } \ + type result = a->repr; \ + if (mo != atomic_memory_order_relaxed) { \ + atomic_fence(atomic_memory_order_acquire); \ + } \ + return result; \ +} \ + \ +ATOMIC_INLINE void \ +atomic_store_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + if (mo != atomic_memory_order_relaxed) { \ + atomic_fence(atomic_memory_order_release); \ + } \ + a->repr = val; \ + if (mo == atomic_memory_order_seq_cst) { \ + atomic_post_sc_store_fence(); \ + } \ +} \ + \ +ATOMIC_INLINE type \ +atomic_exchange_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + /* \ + * Because of FreeBSD, we care about gcc 4.2, which doesn't have\ + * an atomic exchange builtin. We fake it with a CAS loop. \ + */ \ + while (true) { \ + type old = a->repr; \ + if (__sync_bool_compare_and_swap(&a->repr, old, val)) { \ + return old; \ + } \ + } \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_weak_##short_type(atomic_##short_type##_t *a, \ + type *expected, type desired, \ + atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + type prev = __sync_val_compare_and_swap(&a->repr, *expected, \ + desired); \ + if (prev == *expected) { \ + return true; \ + } else { \ + *expected = prev; \ + return false; \ + } \ +} \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_strong_##short_type(atomic_##short_type##_t *a, \ + type *expected, type desired, \ + atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + type prev = __sync_val_compare_and_swap(&a->repr, *expected, \ + desired); \ + if (prev == *expected) { \ + return true; \ + } else { \ + *expected = prev; \ + return false; \ + } \ +} + +#define JEMALLOC_GENERATE_INT_ATOMICS(type, short_type, \ + /* unused */ lg_size) \ +JEMALLOC_GENERATE_ATOMICS(type, short_type, /* unused */ lg_size) \ + \ +ATOMIC_INLINE type \ +atomic_fetch_add_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __sync_fetch_and_add(&a->repr, val); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_sub_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __sync_fetch_and_sub(&a->repr, val); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_and_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __sync_fetch_and_and(&a->repr, val); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_or_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __sync_fetch_and_or(&a->repr, val); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_xor_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return __sync_fetch_and_xor(&a->repr, val); \ +} + +#endif /* JEMALLOC_INTERNAL_ATOMIC_GCC_SYNC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/atomic_msvc.h b/deps/jemalloc/include/jemalloc/internal/atomic_msvc.h new file mode 100644 index 0000000..67057ce --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/atomic_msvc.h @@ -0,0 +1,158 @@ +#ifndef JEMALLOC_INTERNAL_ATOMIC_MSVC_H +#define JEMALLOC_INTERNAL_ATOMIC_MSVC_H + +#define ATOMIC_INIT(...) {__VA_ARGS__} + +typedef enum { + atomic_memory_order_relaxed, + atomic_memory_order_acquire, + atomic_memory_order_release, + atomic_memory_order_acq_rel, + atomic_memory_order_seq_cst +} atomic_memory_order_t; + +typedef char atomic_repr_0_t; +typedef short atomic_repr_1_t; +typedef long atomic_repr_2_t; +typedef __int64 atomic_repr_3_t; + +ATOMIC_INLINE void +atomic_fence(atomic_memory_order_t mo) { + _ReadWriteBarrier(); +# if defined(_M_ARM) || defined(_M_ARM64) + /* ARM needs a barrier for everything but relaxed. */ + if (mo != atomic_memory_order_relaxed) { + MemoryBarrier(); + } +# elif defined(_M_IX86) || defined (_M_X64) + /* x86 needs a barrier only for seq_cst. */ + if (mo == atomic_memory_order_seq_cst) { + MemoryBarrier(); + } +# else +# error "Don't know how to create atomics for this platform for MSVC." +# endif + _ReadWriteBarrier(); +} + +#define ATOMIC_INTERLOCKED_REPR(lg_size) atomic_repr_ ## lg_size ## _t + +#define ATOMIC_CONCAT(a, b) ATOMIC_RAW_CONCAT(a, b) +#define ATOMIC_RAW_CONCAT(a, b) a ## b + +#define ATOMIC_INTERLOCKED_NAME(base_name, lg_size) ATOMIC_CONCAT( \ + base_name, ATOMIC_INTERLOCKED_SUFFIX(lg_size)) + +#define ATOMIC_INTERLOCKED_SUFFIX(lg_size) \ + ATOMIC_CONCAT(ATOMIC_INTERLOCKED_SUFFIX_, lg_size) + +#define ATOMIC_INTERLOCKED_SUFFIX_0 8 +#define ATOMIC_INTERLOCKED_SUFFIX_1 16 +#define ATOMIC_INTERLOCKED_SUFFIX_2 +#define ATOMIC_INTERLOCKED_SUFFIX_3 64 + +#define JEMALLOC_GENERATE_ATOMICS(type, short_type, lg_size) \ +typedef struct { \ + ATOMIC_INTERLOCKED_REPR(lg_size) repr; \ +} atomic_##short_type##_t; \ + \ +ATOMIC_INLINE type \ +atomic_load_##short_type(const atomic_##short_type##_t *a, \ + atomic_memory_order_t mo) { \ + ATOMIC_INTERLOCKED_REPR(lg_size) ret = a->repr; \ + if (mo != atomic_memory_order_relaxed) { \ + atomic_fence(atomic_memory_order_acquire); \ + } \ + return (type) ret; \ +} \ + \ +ATOMIC_INLINE void \ +atomic_store_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + if (mo != atomic_memory_order_relaxed) { \ + atomic_fence(atomic_memory_order_release); \ + } \ + a->repr = (ATOMIC_INTERLOCKED_REPR(lg_size)) val; \ + if (mo == atomic_memory_order_seq_cst) { \ + atomic_fence(atomic_memory_order_seq_cst); \ + } \ +} \ + \ +ATOMIC_INLINE type \ +atomic_exchange_##short_type(atomic_##short_type##_t *a, type val, \ + atomic_memory_order_t mo) { \ + return (type)ATOMIC_INTERLOCKED_NAME(_InterlockedExchange, \ + lg_size)(&a->repr, (ATOMIC_INTERLOCKED_REPR(lg_size))val); \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_weak_##short_type(atomic_##short_type##_t *a, \ + type *expected, type desired, atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + ATOMIC_INTERLOCKED_REPR(lg_size) e = \ + (ATOMIC_INTERLOCKED_REPR(lg_size))*expected; \ + ATOMIC_INTERLOCKED_REPR(lg_size) d = \ + (ATOMIC_INTERLOCKED_REPR(lg_size))desired; \ + ATOMIC_INTERLOCKED_REPR(lg_size) old = \ + ATOMIC_INTERLOCKED_NAME(_InterlockedCompareExchange, \ + lg_size)(&a->repr, d, e); \ + if (old == e) { \ + return true; \ + } else { \ + *expected = (type)old; \ + return false; \ + } \ +} \ + \ +ATOMIC_INLINE bool \ +atomic_compare_exchange_strong_##short_type(atomic_##short_type##_t *a, \ + type *expected, type desired, atomic_memory_order_t success_mo, \ + atomic_memory_order_t failure_mo) { \ + /* We implement the weak version with strong semantics. */ \ + return atomic_compare_exchange_weak_##short_type(a, expected, \ + desired, success_mo, failure_mo); \ +} + + +#define JEMALLOC_GENERATE_INT_ATOMICS(type, short_type, lg_size) \ +JEMALLOC_GENERATE_ATOMICS(type, short_type, lg_size) \ + \ +ATOMIC_INLINE type \ +atomic_fetch_add_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return (type)ATOMIC_INTERLOCKED_NAME(_InterlockedExchangeAdd, \ + lg_size)(&a->repr, (ATOMIC_INTERLOCKED_REPR(lg_size))val); \ +} \ + \ +ATOMIC_INLINE type \ +atomic_fetch_sub_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + /* \ + * MSVC warns on negation of unsigned operands, but for us it \ + * gives exactly the right semantics (MAX_TYPE + 1 - operand). \ + */ \ + __pragma(warning(push)) \ + __pragma(warning(disable: 4146)) \ + return atomic_fetch_add_##short_type(a, -val, mo); \ + __pragma(warning(pop)) \ +} \ +ATOMIC_INLINE type \ +atomic_fetch_and_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return (type)ATOMIC_INTERLOCKED_NAME(_InterlockedAnd, lg_size)( \ + &a->repr, (ATOMIC_INTERLOCKED_REPR(lg_size))val); \ +} \ +ATOMIC_INLINE type \ +atomic_fetch_or_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return (type)ATOMIC_INTERLOCKED_NAME(_InterlockedOr, lg_size)( \ + &a->repr, (ATOMIC_INTERLOCKED_REPR(lg_size))val); \ +} \ +ATOMIC_INLINE type \ +atomic_fetch_xor_##short_type(atomic_##short_type##_t *a, \ + type val, atomic_memory_order_t mo) { \ + return (type)ATOMIC_INTERLOCKED_NAME(_InterlockedXor, lg_size)( \ + &a->repr, (ATOMIC_INTERLOCKED_REPR(lg_size))val); \ +} + +#endif /* JEMALLOC_INTERNAL_ATOMIC_MSVC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/background_thread_externs.h b/deps/jemalloc/include/jemalloc/internal/background_thread_externs.h new file mode 100644 index 0000000..6ae3c8d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/background_thread_externs.h @@ -0,0 +1,33 @@ +#ifndef JEMALLOC_INTERNAL_BACKGROUND_THREAD_EXTERNS_H +#define JEMALLOC_INTERNAL_BACKGROUND_THREAD_EXTERNS_H + +extern bool opt_background_thread; +extern size_t opt_max_background_threads; +extern malloc_mutex_t background_thread_lock; +extern atomic_b_t background_thread_enabled_state; +extern size_t n_background_threads; +extern size_t max_background_threads; +extern background_thread_info_t *background_thread_info; + +bool background_thread_create(tsd_t *tsd, unsigned arena_ind); +bool background_threads_enable(tsd_t *tsd); +bool background_threads_disable(tsd_t *tsd); +bool background_thread_is_started(background_thread_info_t* info); +void background_thread_wakeup_early(background_thread_info_t *info, + nstime_t *remaining_sleep); +void background_thread_prefork0(tsdn_t *tsdn); +void background_thread_prefork1(tsdn_t *tsdn); +void background_thread_postfork_parent(tsdn_t *tsdn); +void background_thread_postfork_child(tsdn_t *tsdn); +bool background_thread_stats_read(tsdn_t *tsdn, + background_thread_stats_t *stats); +void background_thread_ctl_init(tsdn_t *tsdn); + +#ifdef JEMALLOC_PTHREAD_CREATE_WRAPPER +extern int pthread_create_wrapper(pthread_t *__restrict, const pthread_attr_t *, + void *(*)(void *), void *__restrict); +#endif +bool background_thread_boot0(void); +bool background_thread_boot1(tsdn_t *tsdn, base_t *base); + +#endif /* JEMALLOC_INTERNAL_BACKGROUND_THREAD_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/background_thread_inlines.h b/deps/jemalloc/include/jemalloc/internal/background_thread_inlines.h new file mode 100644 index 0000000..92c5feb --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/background_thread_inlines.h @@ -0,0 +1,48 @@ +#ifndef JEMALLOC_INTERNAL_BACKGROUND_THREAD_INLINES_H +#define JEMALLOC_INTERNAL_BACKGROUND_THREAD_INLINES_H + +JEMALLOC_ALWAYS_INLINE bool +background_thread_enabled(void) { + return atomic_load_b(&background_thread_enabled_state, ATOMIC_RELAXED); +} + +JEMALLOC_ALWAYS_INLINE void +background_thread_enabled_set(tsdn_t *tsdn, bool state) { + malloc_mutex_assert_owner(tsdn, &background_thread_lock); + atomic_store_b(&background_thread_enabled_state, state, ATOMIC_RELAXED); +} + +JEMALLOC_ALWAYS_INLINE background_thread_info_t * +arena_background_thread_info_get(arena_t *arena) { + unsigned arena_ind = arena_ind_get(arena); + return &background_thread_info[arena_ind % max_background_threads]; +} + +JEMALLOC_ALWAYS_INLINE background_thread_info_t * +background_thread_info_get(size_t ind) { + return &background_thread_info[ind % max_background_threads]; +} + +JEMALLOC_ALWAYS_INLINE uint64_t +background_thread_wakeup_time_get(background_thread_info_t *info) { + uint64_t next_wakeup = nstime_ns(&info->next_wakeup); + assert(atomic_load_b(&info->indefinite_sleep, ATOMIC_ACQUIRE) == + (next_wakeup == BACKGROUND_THREAD_INDEFINITE_SLEEP)); + return next_wakeup; +} + +JEMALLOC_ALWAYS_INLINE void +background_thread_wakeup_time_set(tsdn_t *tsdn, background_thread_info_t *info, + uint64_t wakeup_time) { + malloc_mutex_assert_owner(tsdn, &info->mtx); + atomic_store_b(&info->indefinite_sleep, + wakeup_time == BACKGROUND_THREAD_INDEFINITE_SLEEP, ATOMIC_RELEASE); + nstime_init(&info->next_wakeup, wakeup_time); +} + +JEMALLOC_ALWAYS_INLINE bool +background_thread_indefinite_sleep(background_thread_info_t *info) { + return atomic_load_b(&info->indefinite_sleep, ATOMIC_ACQUIRE); +} + +#endif /* JEMALLOC_INTERNAL_BACKGROUND_THREAD_INLINES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/background_thread_structs.h b/deps/jemalloc/include/jemalloc/internal/background_thread_structs.h new file mode 100644 index 0000000..83a9198 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/background_thread_structs.h @@ -0,0 +1,66 @@ +#ifndef JEMALLOC_INTERNAL_BACKGROUND_THREAD_STRUCTS_H +#define JEMALLOC_INTERNAL_BACKGROUND_THREAD_STRUCTS_H + +/* This file really combines "structs" and "types", but only transitionally. */ + +#if defined(JEMALLOC_BACKGROUND_THREAD) || defined(JEMALLOC_LAZY_LOCK) +# define JEMALLOC_PTHREAD_CREATE_WRAPPER +#endif + +#define BACKGROUND_THREAD_INDEFINITE_SLEEP UINT64_MAX +#define MAX_BACKGROUND_THREAD_LIMIT MALLOCX_ARENA_LIMIT +#define DEFAULT_NUM_BACKGROUND_THREAD 4 + +/* + * These exist only as a transitional state. Eventually, deferral should be + * part of the PAI, and each implementation can indicate wait times with more + * specificity. + */ +#define BACKGROUND_THREAD_HPA_INTERVAL_MAX_UNINITIALIZED (-2) +#define BACKGROUND_THREAD_HPA_INTERVAL_MAX_DEFAULT_WHEN_ENABLED 5000 + +#define BACKGROUND_THREAD_DEFERRED_MIN UINT64_C(0) +#define BACKGROUND_THREAD_DEFERRED_MAX UINT64_MAX + +typedef enum { + background_thread_stopped, + background_thread_started, + /* Thread waits on the global lock when paused (for arena_reset). */ + background_thread_paused, +} background_thread_state_t; + +struct background_thread_info_s { +#ifdef JEMALLOC_BACKGROUND_THREAD + /* Background thread is pthread specific. */ + pthread_t thread; + pthread_cond_t cond; +#endif + malloc_mutex_t mtx; + background_thread_state_t state; + /* When true, it means no wakeup scheduled. */ + atomic_b_t indefinite_sleep; + /* Next scheduled wakeup time (absolute time in ns). */ + nstime_t next_wakeup; + /* + * Since the last background thread run, newly added number of pages + * that need to be purged by the next wakeup. This is adjusted on + * epoch advance, and is used to determine whether we should signal the + * background thread to wake up earlier. + */ + size_t npages_to_purge_new; + /* Stats: total number of runs since started. */ + uint64_t tot_n_runs; + /* Stats: total sleep time since started. */ + nstime_t tot_sleep_time; +}; +typedef struct background_thread_info_s background_thread_info_t; + +struct background_thread_stats_s { + size_t num_threads; + uint64_t num_runs; + nstime_t run_interval; + mutex_prof_data_t max_counter_per_bg_thd; +}; +typedef struct background_thread_stats_s background_thread_stats_t; + +#endif /* JEMALLOC_INTERNAL_BACKGROUND_THREAD_STRUCTS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/base.h b/deps/jemalloc/include/jemalloc/internal/base.h new file mode 100644 index 0000000..9b2c9fb --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/base.h @@ -0,0 +1,110 @@ +#ifndef JEMALLOC_INTERNAL_BASE_H +#define JEMALLOC_INTERNAL_BASE_H + +#include "jemalloc/internal/edata.h" +#include "jemalloc/internal/ehooks.h" +#include "jemalloc/internal/mutex.h" + +enum metadata_thp_mode_e { + metadata_thp_disabled = 0, + /* + * Lazily enable hugepage for metadata. To avoid high RSS caused by THP + * + low usage arena (i.e. THP becomes a significant percentage), the + * "auto" option only starts using THP after a base allocator used up + * the first THP region. Starting from the second hugepage (in a single + * arena), "auto" behaves the same as "always", i.e. madvise hugepage + * right away. + */ + metadata_thp_auto = 1, + metadata_thp_always = 2, + metadata_thp_mode_limit = 3 +}; +typedef enum metadata_thp_mode_e metadata_thp_mode_t; + +#define METADATA_THP_DEFAULT metadata_thp_disabled +extern metadata_thp_mode_t opt_metadata_thp; +extern const char *metadata_thp_mode_names[]; + + +/* Embedded at the beginning of every block of base-managed virtual memory. */ +typedef struct base_block_s base_block_t; +struct base_block_s { + /* Total size of block's virtual memory mapping. */ + size_t size; + + /* Next block in list of base's blocks. */ + base_block_t *next; + + /* Tracks unused trailing space. */ + edata_t edata; +}; + +typedef struct base_s base_t; +struct base_s { + /* + * User-configurable extent hook functions. + */ + ehooks_t ehooks; + + /* + * User-configurable extent hook functions for metadata allocations. + */ + ehooks_t ehooks_base; + + /* Protects base_alloc() and base_stats_get() operations. */ + malloc_mutex_t mtx; + + /* Using THP when true (metadata_thp auto mode). */ + bool auto_thp_switched; + /* + * Most recent size class in the series of increasingly large base + * extents. Logarithmic spacing between subsequent allocations ensures + * that the total number of distinct mappings remains small. + */ + pszind_t pind_last; + + /* Serial number generation state. */ + size_t extent_sn_next; + + /* Chain of all blocks associated with base. */ + base_block_t *blocks; + + /* Heap of extents that track unused trailing space within blocks. */ + edata_heap_t avail[SC_NSIZES]; + + /* Stats, only maintained if config_stats. */ + size_t allocated; + size_t resident; + size_t mapped; + /* Number of THP regions touched. */ + size_t n_thp; +}; + +static inline unsigned +base_ind_get(const base_t *base) { + return ehooks_ind_get(&base->ehooks); +} + +static inline bool +metadata_thp_enabled(void) { + return (opt_metadata_thp != metadata_thp_disabled); +} + +base_t *b0get(void); +base_t *base_new(tsdn_t *tsdn, unsigned ind, + const extent_hooks_t *extent_hooks, bool metadata_use_hooks); +void base_delete(tsdn_t *tsdn, base_t *base); +ehooks_t *base_ehooks_get(base_t *base); +ehooks_t *base_ehooks_get_for_metadata(base_t *base); +extent_hooks_t *base_extent_hooks_set(base_t *base, + extent_hooks_t *extent_hooks); +void *base_alloc(tsdn_t *tsdn, base_t *base, size_t size, size_t alignment); +edata_t *base_alloc_edata(tsdn_t *tsdn, base_t *base); +void base_stats_get(tsdn_t *tsdn, base_t *base, size_t *allocated, + size_t *resident, size_t *mapped, size_t *n_thp); +void base_prefork(tsdn_t *tsdn, base_t *base); +void base_postfork_parent(tsdn_t *tsdn, base_t *base); +void base_postfork_child(tsdn_t *tsdn, base_t *base); +bool base_boot(tsdn_t *tsdn); + +#endif /* JEMALLOC_INTERNAL_BASE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/bin.h b/deps/jemalloc/include/jemalloc/internal/bin.h new file mode 100644 index 0000000..63f9739 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/bin.h @@ -0,0 +1,82 @@ +#ifndef JEMALLOC_INTERNAL_BIN_H +#define JEMALLOC_INTERNAL_BIN_H + +#include "jemalloc/internal/bin_stats.h" +#include "jemalloc/internal/bin_types.h" +#include "jemalloc/internal/edata.h" +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/sc.h" + +/* + * A bin contains a set of extents that are currently being used for slab + * allocations. + */ +typedef struct bin_s bin_t; +struct bin_s { + /* All operations on bin_t fields require lock ownership. */ + malloc_mutex_t lock; + + /* + * Bin statistics. These get touched every time the lock is acquired, + * so put them close by in the hopes of getting some cache locality. + */ + bin_stats_t stats; + + /* + * Current slab being used to service allocations of this bin's size + * class. slabcur is independent of slabs_{nonfull,full}; whenever + * slabcur is reassigned, the previous slab must be deallocated or + * inserted into slabs_{nonfull,full}. + */ + edata_t *slabcur; + + /* + * Heap of non-full slabs. This heap is used to assure that new + * allocations come from the non-full slab that is oldest/lowest in + * memory. + */ + edata_heap_t slabs_nonfull; + + /* List used to track full slabs. */ + edata_list_active_t slabs_full; +}; + +/* A set of sharded bins of the same size class. */ +typedef struct bins_s bins_t; +struct bins_s { + /* Sharded bins. Dynamically sized. */ + bin_t *bin_shards; +}; + +void bin_shard_sizes_boot(unsigned bin_shards[SC_NBINS]); +bool bin_update_shard_size(unsigned bin_shards[SC_NBINS], size_t start_size, + size_t end_size, size_t nshards); + +/* Initializes a bin to empty. Returns true on error. */ +bool bin_init(bin_t *bin); + +/* Forking. */ +void bin_prefork(tsdn_t *tsdn, bin_t *bin); +void bin_postfork_parent(tsdn_t *tsdn, bin_t *bin); +void bin_postfork_child(tsdn_t *tsdn, bin_t *bin); + +/* Stats. */ +static inline void +bin_stats_merge(tsdn_t *tsdn, bin_stats_data_t *dst_bin_stats, bin_t *bin) { + malloc_mutex_lock(tsdn, &bin->lock); + malloc_mutex_prof_accum(tsdn, &dst_bin_stats->mutex_data, &bin->lock); + bin_stats_t *stats = &dst_bin_stats->stats_data; + stats->nmalloc += bin->stats.nmalloc; + stats->ndalloc += bin->stats.ndalloc; + stats->nrequests += bin->stats.nrequests; + stats->curregs += bin->stats.curregs; + stats->nfills += bin->stats.nfills; + stats->nflushes += bin->stats.nflushes; + stats->nslabs += bin->stats.nslabs; + stats->reslabs += bin->stats.reslabs; + stats->curslabs += bin->stats.curslabs; + stats->nonfull_slabs += bin->stats.nonfull_slabs; + malloc_mutex_unlock(tsdn, &bin->lock); +} + +#endif /* JEMALLOC_INTERNAL_BIN_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/bin_info.h b/deps/jemalloc/include/jemalloc/internal/bin_info.h new file mode 100644 index 0000000..7fe65c8 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/bin_info.h @@ -0,0 +1,50 @@ +#ifndef JEMALLOC_INTERNAL_BIN_INFO_H +#define JEMALLOC_INTERNAL_BIN_INFO_H + +#include "jemalloc/internal/bitmap.h" + +/* + * Read-only information associated with each element of arena_t's bins array + * is stored separately, partly to reduce memory usage (only one copy, rather + * than one per arena), but mainly to avoid false cacheline sharing. + * + * Each slab has the following layout: + * + * /--------------------\ + * | region 0 | + * |--------------------| + * | region 1 | + * |--------------------| + * | ... | + * | ... | + * | ... | + * |--------------------| + * | region nregs-1 | + * \--------------------/ + */ +typedef struct bin_info_s bin_info_t; +struct bin_info_s { + /* Size of regions in a slab for this bin's size class. */ + size_t reg_size; + + /* Total size of a slab for this bin's size class. */ + size_t slab_size; + + /* Total number of regions in a slab for this bin's size class. */ + uint32_t nregs; + + /* Number of sharded bins in each arena for this size class. */ + uint32_t n_shards; + + /* + * Metadata used to manipulate bitmaps for slabs associated with this + * bin. + */ + bitmap_info_t bitmap_info; +}; + +extern bin_info_t bin_infos[SC_NBINS]; + +void bin_info_boot(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS]); + +#endif /* JEMALLOC_INTERNAL_BIN_INFO_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/bin_stats.h b/deps/jemalloc/include/jemalloc/internal/bin_stats.h new file mode 100644 index 0000000..0b99297 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/bin_stats.h @@ -0,0 +1,57 @@ +#ifndef JEMALLOC_INTERNAL_BIN_STATS_H +#define JEMALLOC_INTERNAL_BIN_STATS_H + +#include "jemalloc/internal/mutex_prof.h" + +typedef struct bin_stats_s bin_stats_t; +struct bin_stats_s { + /* + * Total number of allocation/deallocation requests served directly by + * the bin. Note that tcache may allocate an object, then recycle it + * many times, resulting many increments to nrequests, but only one + * each to nmalloc and ndalloc. + */ + uint64_t nmalloc; + uint64_t ndalloc; + + /* + * Number of allocation requests that correspond to the size of this + * bin. This includes requests served by tcache, though tcache only + * periodically merges into this counter. + */ + uint64_t nrequests; + + /* + * Current number of regions of this size class, including regions + * currently cached by tcache. + */ + size_t curregs; + + /* Number of tcache fills from this bin. */ + uint64_t nfills; + + /* Number of tcache flushes to this bin. */ + uint64_t nflushes; + + /* Total number of slabs created for this bin's size class. */ + uint64_t nslabs; + + /* + * Total number of slabs reused by extracting them from the slabs heap + * for this bin's size class. + */ + uint64_t reslabs; + + /* Current number of slabs in this bin. */ + size_t curslabs; + + /* Current size of nonfull slabs heap in this bin. */ + size_t nonfull_slabs; +}; + +typedef struct bin_stats_data_s bin_stats_data_t; +struct bin_stats_data_s { + bin_stats_t stats_data; + mutex_prof_data_t mutex_data; +}; +#endif /* JEMALLOC_INTERNAL_BIN_STATS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/bin_types.h b/deps/jemalloc/include/jemalloc/internal/bin_types.h new file mode 100644 index 0000000..945e832 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/bin_types.h @@ -0,0 +1,17 @@ +#ifndef JEMALLOC_INTERNAL_BIN_TYPES_H +#define JEMALLOC_INTERNAL_BIN_TYPES_H + +#include "jemalloc/internal/sc.h" + +#define BIN_SHARDS_MAX (1 << EDATA_BITS_BINSHARD_WIDTH) +#define N_BIN_SHARDS_DEFAULT 1 + +/* Used in TSD static initializer only. Real init in arena_bind(). */ +#define TSD_BINSHARDS_ZERO_INITIALIZER {{UINT8_MAX}} + +typedef struct tsd_binshards_s tsd_binshards_t; +struct tsd_binshards_s { + uint8_t binshard[SC_NBINS]; +}; + +#endif /* JEMALLOC_INTERNAL_BIN_TYPES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/bit_util.h b/deps/jemalloc/include/jemalloc/internal/bit_util.h new file mode 100644 index 0000000..bac5914 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/bit_util.h @@ -0,0 +1,422 @@ +#ifndef JEMALLOC_INTERNAL_BIT_UTIL_H +#define JEMALLOC_INTERNAL_BIT_UTIL_H + +#include "jemalloc/internal/assert.h" + +/* Sanity check. */ +#if !defined(JEMALLOC_INTERNAL_FFSLL) || !defined(JEMALLOC_INTERNAL_FFSL) \ + || !defined(JEMALLOC_INTERNAL_FFS) +# error JEMALLOC_INTERNAL_FFS{,L,LL} should have been defined by configure +#endif + +/* + * Unlike the builtins and posix ffs functions, our ffs requires a non-zero + * input, and returns the position of the lowest bit set (as opposed to the + * posix versions, which return 1 larger than that position and use a return + * value of zero as a sentinel. This tends to simplify logic in callers, and + * allows for consistency with the builtins we build fls on top of. + */ +static inline unsigned +ffs_llu(unsigned long long x) { + util_assume(x != 0); + return JEMALLOC_INTERNAL_FFSLL(x) - 1; +} + +static inline unsigned +ffs_lu(unsigned long x) { + util_assume(x != 0); + return JEMALLOC_INTERNAL_FFSL(x) - 1; +} + +static inline unsigned +ffs_u(unsigned x) { + util_assume(x != 0); + return JEMALLOC_INTERNAL_FFS(x) - 1; +} + +#define DO_FLS_SLOW(x, suffix) do { \ + util_assume(x != 0); \ + x |= (x >> 1); \ + x |= (x >> 2); \ + x |= (x >> 4); \ + x |= (x >> 8); \ + x |= (x >> 16); \ + if (sizeof(x) > 4) { \ + /* \ + * If sizeof(x) is 4, then the expression "x >> 32" \ + * will generate compiler warnings even if the code \ + * never executes. This circumvents the warning, and \ + * gets compiled out in optimized builds. \ + */ \ + int constant_32 = sizeof(x) * 4; \ + x |= (x >> constant_32); \ + } \ + x++; \ + if (x == 0) { \ + return 8 * sizeof(x) - 1; \ + } \ + return ffs_##suffix(x) - 1; \ +} while(0) + +static inline unsigned +fls_llu_slow(unsigned long long x) { + DO_FLS_SLOW(x, llu); +} + +static inline unsigned +fls_lu_slow(unsigned long x) { + DO_FLS_SLOW(x, lu); +} + +static inline unsigned +fls_u_slow(unsigned x) { + DO_FLS_SLOW(x, u); +} + +#undef DO_FLS_SLOW + +#ifdef JEMALLOC_HAVE_BUILTIN_CLZ +static inline unsigned +fls_llu(unsigned long long x) { + util_assume(x != 0); + /* + * Note that the xor here is more naturally written as subtraction; the + * last bit set is the number of bits in the type minus the number of + * leading zero bits. But GCC implements that as: + * bsr edi, edi + * mov eax, 31 + * xor edi, 31 + * sub eax, edi + * If we write it as xor instead, then we get + * bsr eax, edi + * as desired. + */ + return (8 * sizeof(x) - 1) ^ __builtin_clzll(x); +} + +static inline unsigned +fls_lu(unsigned long x) { + util_assume(x != 0); + return (8 * sizeof(x) - 1) ^ __builtin_clzl(x); +} + +static inline unsigned +fls_u(unsigned x) { + util_assume(x != 0); + return (8 * sizeof(x) - 1) ^ __builtin_clz(x); +} +#elif defined(_MSC_VER) + +#if LG_SIZEOF_PTR == 3 +#define DO_BSR64(bit, x) _BitScanReverse64(&bit, x) +#else +/* + * This never actually runs; we're just dodging a compiler error for the + * never-taken branch where sizeof(void *) == 8. + */ +#define DO_BSR64(bit, x) bit = 0; unreachable() +#endif + +#define DO_FLS(x) do { \ + if (x == 0) { \ + return 8 * sizeof(x); \ + } \ + unsigned long bit; \ + if (sizeof(x) == 4) { \ + _BitScanReverse(&bit, (unsigned)x); \ + return (unsigned)bit; \ + } \ + if (sizeof(x) == 8 && sizeof(void *) == 8) { \ + DO_BSR64(bit, x); \ + return (unsigned)bit; \ + } \ + if (sizeof(x) == 8 && sizeof(void *) == 4) { \ + /* Dodge a compiler warning, as above. */ \ + int constant_32 = sizeof(x) * 4; \ + if (_BitScanReverse(&bit, \ + (unsigned)(x >> constant_32))) { \ + return 32 + (unsigned)bit; \ + } else { \ + _BitScanReverse(&bit, (unsigned)x); \ + return (unsigned)bit; \ + } \ + } \ + unreachable(); \ +} while (0) + +static inline unsigned +fls_llu(unsigned long long x) { + DO_FLS(x); +} + +static inline unsigned +fls_lu(unsigned long x) { + DO_FLS(x); +} + +static inline unsigned +fls_u(unsigned x) { + DO_FLS(x); +} + +#undef DO_FLS +#undef DO_BSR64 +#else + +static inline unsigned +fls_llu(unsigned long long x) { + return fls_llu_slow(x); +} + +static inline unsigned +fls_lu(unsigned long x) { + return fls_lu_slow(x); +} + +static inline unsigned +fls_u(unsigned x) { + return fls_u_slow(x); +} +#endif + +#if LG_SIZEOF_LONG_LONG > 3 +# error "Haven't implemented popcount for 16-byte ints." +#endif + +#define DO_POPCOUNT(x, type) do { \ + /* \ + * Algorithm from an old AMD optimization reference manual. \ + * We're putting a little bit more work than you might expect \ + * into the no-instrinsic case, since we only support the \ + * GCC intrinsics spelling of popcount (for now). Detecting \ + * whether or not the popcount builtin is actually useable in \ + * MSVC is nontrivial. \ + */ \ + \ + type bmul = (type)0x0101010101010101ULL; \ + \ + /* \ + * Replace each 2 bits with the sideways sum of the original \ + * values. 0x5 = 0b0101. \ + * \ + * You might expect this to be: \ + * x = (x & 0x55...) + ((x >> 1) & 0x55...). \ + * That costs an extra mask relative to this, though. \ + */ \ + x = x - ((x >> 1) & (0x55U * bmul)); \ + /* Replace each 4 bits with their sideays sum. 0x3 = 0b0011. */\ + x = (x & (bmul * 0x33U)) + ((x >> 2) & (bmul * 0x33U)); \ + /* \ + * Replace each 8 bits with their sideways sum. Note that we \ + * can't overflow within each 4-bit sum here, so we can skip \ + * the initial mask. \ + */ \ + x = (x + (x >> 4)) & (bmul * 0x0FU); \ + /* \ + * None of the partial sums in this multiplication (viewed in \ + * base-256) can overflow into the next digit. So the least \ + * significant byte of the product will be the least \ + * significant byte of the original value, the second least \ + * significant byte will be the sum of the two least \ + * significant bytes of the original value, and so on. \ + * Importantly, the high byte will be the byte-wise sum of all \ + * the bytes of the original value. \ + */ \ + x = x * bmul; \ + x >>= ((sizeof(x) - 1) * 8); \ + return (unsigned)x; \ +} while(0) + +static inline unsigned +popcount_u_slow(unsigned bitmap) { + DO_POPCOUNT(bitmap, unsigned); +} + +static inline unsigned +popcount_lu_slow(unsigned long bitmap) { + DO_POPCOUNT(bitmap, unsigned long); +} + +static inline unsigned +popcount_llu_slow(unsigned long long bitmap) { + DO_POPCOUNT(bitmap, unsigned long long); +} + +#undef DO_POPCOUNT + +static inline unsigned +popcount_u(unsigned bitmap) { +#ifdef JEMALLOC_INTERNAL_POPCOUNT + return JEMALLOC_INTERNAL_POPCOUNT(bitmap); +#else + return popcount_u_slow(bitmap); +#endif +} + +static inline unsigned +popcount_lu(unsigned long bitmap) { +#ifdef JEMALLOC_INTERNAL_POPCOUNTL + return JEMALLOC_INTERNAL_POPCOUNTL(bitmap); +#else + return popcount_lu_slow(bitmap); +#endif +} + +static inline unsigned +popcount_llu(unsigned long long bitmap) { +#ifdef JEMALLOC_INTERNAL_POPCOUNTLL + return JEMALLOC_INTERNAL_POPCOUNTLL(bitmap); +#else + return popcount_llu_slow(bitmap); +#endif +} + +/* + * Clears first unset bit in bitmap, and returns + * place of bit. bitmap *must not* be 0. + */ + +static inline size_t +cfs_lu(unsigned long* bitmap) { + util_assume(*bitmap != 0); + size_t bit = ffs_lu(*bitmap); + *bitmap ^= ZU(1) << bit; + return bit; +} + +static inline unsigned +ffs_zu(size_t x) { +#if LG_SIZEOF_PTR == LG_SIZEOF_INT + return ffs_u(x); +#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG + return ffs_lu(x); +#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG_LONG + return ffs_llu(x); +#else +#error No implementation for size_t ffs() +#endif +} + +static inline unsigned +fls_zu(size_t x) { +#if LG_SIZEOF_PTR == LG_SIZEOF_INT + return fls_u(x); +#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG + return fls_lu(x); +#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG_LONG + return fls_llu(x); +#else +#error No implementation for size_t fls() +#endif +} + + +static inline unsigned +ffs_u64(uint64_t x) { +#if LG_SIZEOF_LONG == 3 + return ffs_lu(x); +#elif LG_SIZEOF_LONG_LONG == 3 + return ffs_llu(x); +#else +#error No implementation for 64-bit ffs() +#endif +} + +static inline unsigned +fls_u64(uint64_t x) { +#if LG_SIZEOF_LONG == 3 + return fls_lu(x); +#elif LG_SIZEOF_LONG_LONG == 3 + return fls_llu(x); +#else +#error No implementation for 64-bit fls() +#endif +} + +static inline unsigned +ffs_u32(uint32_t x) { +#if LG_SIZEOF_INT == 2 + return ffs_u(x); +#else +#error No implementation for 32-bit ffs() +#endif + return ffs_u(x); +} + +static inline unsigned +fls_u32(uint32_t x) { +#if LG_SIZEOF_INT == 2 + return fls_u(x); +#else +#error No implementation for 32-bit fls() +#endif + return fls_u(x); +} + +static inline uint64_t +pow2_ceil_u64(uint64_t x) { + if (unlikely(x <= 1)) { + return x; + } + size_t msb_on_index = fls_u64(x - 1); + /* + * Range-check; it's on the callers to ensure that the result of this + * call won't overflow. + */ + assert(msb_on_index < 63); + return 1ULL << (msb_on_index + 1); +} + +static inline uint32_t +pow2_ceil_u32(uint32_t x) { + if (unlikely(x <= 1)) { + return x; + } + size_t msb_on_index = fls_u32(x - 1); + /* As above. */ + assert(msb_on_index < 31); + return 1U << (msb_on_index + 1); +} + +/* Compute the smallest power of 2 that is >= x. */ +static inline size_t +pow2_ceil_zu(size_t x) { +#if (LG_SIZEOF_PTR == 3) + return pow2_ceil_u64(x); +#else + return pow2_ceil_u32(x); +#endif +} + +static inline unsigned +lg_floor(size_t x) { + util_assume(x != 0); +#if (LG_SIZEOF_PTR == 3) + return fls_u64(x); +#else + return fls_u32(x); +#endif +} + +static inline unsigned +lg_ceil(size_t x) { + return lg_floor(x) + ((x & (x - 1)) == 0 ? 0 : 1); +} + +/* A compile-time version of lg_floor and lg_ceil. */ +#define LG_FLOOR_1(x) 0 +#define LG_FLOOR_2(x) (x < (1ULL << 1) ? LG_FLOOR_1(x) : 1 + LG_FLOOR_1(x >> 1)) +#define LG_FLOOR_4(x) (x < (1ULL << 2) ? LG_FLOOR_2(x) : 2 + LG_FLOOR_2(x >> 2)) +#define LG_FLOOR_8(x) (x < (1ULL << 4) ? LG_FLOOR_4(x) : 4 + LG_FLOOR_4(x >> 4)) +#define LG_FLOOR_16(x) (x < (1ULL << 8) ? LG_FLOOR_8(x) : 8 + LG_FLOOR_8(x >> 8)) +#define LG_FLOOR_32(x) (x < (1ULL << 16) ? LG_FLOOR_16(x) : 16 + LG_FLOOR_16(x >> 16)) +#define LG_FLOOR_64(x) (x < (1ULL << 32) ? LG_FLOOR_32(x) : 32 + LG_FLOOR_32(x >> 32)) +#if LG_SIZEOF_PTR == 2 +# define LG_FLOOR(x) LG_FLOOR_32((x)) +#else +# define LG_FLOOR(x) LG_FLOOR_64((x)) +#endif + +#define LG_CEIL(x) (LG_FLOOR(x) + (((x) & ((x) - 1)) == 0 ? 0 : 1)) + +#endif /* JEMALLOC_INTERNAL_BIT_UTIL_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/bitmap.h b/deps/jemalloc/include/jemalloc/internal/bitmap.h new file mode 100644 index 0000000..dc19454 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/bitmap.h @@ -0,0 +1,368 @@ +#ifndef JEMALLOC_INTERNAL_BITMAP_H +#define JEMALLOC_INTERNAL_BITMAP_H + +#include "jemalloc/internal/bit_util.h" +#include "jemalloc/internal/sc.h" + +typedef unsigned long bitmap_t; +#define LG_SIZEOF_BITMAP LG_SIZEOF_LONG + +/* Maximum bitmap bit count is 2^LG_BITMAP_MAXBITS. */ +#if SC_LG_SLAB_MAXREGS > LG_CEIL(SC_NSIZES) +/* Maximum bitmap bit count is determined by maximum regions per slab. */ +# define LG_BITMAP_MAXBITS SC_LG_SLAB_MAXREGS +#else +/* Maximum bitmap bit count is determined by number of extent size classes. */ +# define LG_BITMAP_MAXBITS LG_CEIL(SC_NSIZES) +#endif +#define BITMAP_MAXBITS (ZU(1) << LG_BITMAP_MAXBITS) + +/* Number of bits per group. */ +#define LG_BITMAP_GROUP_NBITS (LG_SIZEOF_BITMAP + 3) +#define BITMAP_GROUP_NBITS (1U << LG_BITMAP_GROUP_NBITS) +#define BITMAP_GROUP_NBITS_MASK (BITMAP_GROUP_NBITS-1) + +/* + * Do some analysis on how big the bitmap is before we use a tree. For a brute + * force linear search, if we would have to call ffs_lu() more than 2^3 times, + * use a tree instead. + */ +#if LG_BITMAP_MAXBITS - LG_BITMAP_GROUP_NBITS > 3 +# define BITMAP_USE_TREE +#endif + +/* Number of groups required to store a given number of bits. */ +#define BITMAP_BITS2GROUPS(nbits) \ + (((nbits) + BITMAP_GROUP_NBITS_MASK) >> LG_BITMAP_GROUP_NBITS) + +/* + * Number of groups required at a particular level for a given number of bits. + */ +#define BITMAP_GROUPS_L0(nbits) \ + BITMAP_BITS2GROUPS(nbits) +#define BITMAP_GROUPS_L1(nbits) \ + BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(nbits)) +#define BITMAP_GROUPS_L2(nbits) \ + BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS((nbits)))) +#define BITMAP_GROUPS_L3(nbits) \ + BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS( \ + BITMAP_BITS2GROUPS((nbits))))) +#define BITMAP_GROUPS_L4(nbits) \ + BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS( \ + BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS((nbits)))))) + +/* + * Assuming the number of levels, number of groups required for a given number + * of bits. + */ +#define BITMAP_GROUPS_1_LEVEL(nbits) \ + BITMAP_GROUPS_L0(nbits) +#define BITMAP_GROUPS_2_LEVEL(nbits) \ + (BITMAP_GROUPS_1_LEVEL(nbits) + BITMAP_GROUPS_L1(nbits)) +#define BITMAP_GROUPS_3_LEVEL(nbits) \ + (BITMAP_GROUPS_2_LEVEL(nbits) + BITMAP_GROUPS_L2(nbits)) +#define BITMAP_GROUPS_4_LEVEL(nbits) \ + (BITMAP_GROUPS_3_LEVEL(nbits) + BITMAP_GROUPS_L3(nbits)) +#define BITMAP_GROUPS_5_LEVEL(nbits) \ + (BITMAP_GROUPS_4_LEVEL(nbits) + BITMAP_GROUPS_L4(nbits)) + +/* + * Maximum number of groups required to support LG_BITMAP_MAXBITS. + */ +#ifdef BITMAP_USE_TREE + +#if LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS +# define BITMAP_GROUPS(nbits) BITMAP_GROUPS_1_LEVEL(nbits) +# define BITMAP_GROUPS_MAX BITMAP_GROUPS_1_LEVEL(BITMAP_MAXBITS) +#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 2 +# define BITMAP_GROUPS(nbits) BITMAP_GROUPS_2_LEVEL(nbits) +# define BITMAP_GROUPS_MAX BITMAP_GROUPS_2_LEVEL(BITMAP_MAXBITS) +#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 3 +# define BITMAP_GROUPS(nbits) BITMAP_GROUPS_3_LEVEL(nbits) +# define BITMAP_GROUPS_MAX BITMAP_GROUPS_3_LEVEL(BITMAP_MAXBITS) +#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 4 +# define BITMAP_GROUPS(nbits) BITMAP_GROUPS_4_LEVEL(nbits) +# define BITMAP_GROUPS_MAX BITMAP_GROUPS_4_LEVEL(BITMAP_MAXBITS) +#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 5 +# define BITMAP_GROUPS(nbits) BITMAP_GROUPS_5_LEVEL(nbits) +# define BITMAP_GROUPS_MAX BITMAP_GROUPS_5_LEVEL(BITMAP_MAXBITS) +#else +# error "Unsupported bitmap size" +#endif + +/* + * Maximum number of levels possible. This could be statically computed based + * on LG_BITMAP_MAXBITS: + * + * #define BITMAP_MAX_LEVELS \ + * (LG_BITMAP_MAXBITS / LG_SIZEOF_BITMAP) \ + * + !!(LG_BITMAP_MAXBITS % LG_SIZEOF_BITMAP) + * + * However, that would not allow the generic BITMAP_INFO_INITIALIZER() macro, so + * instead hardcode BITMAP_MAX_LEVELS to the largest number supported by the + * various cascading macros. The only additional cost this incurs is some + * unused trailing entries in bitmap_info_t structures; the bitmaps themselves + * are not impacted. + */ +#define BITMAP_MAX_LEVELS 5 + +#define BITMAP_INFO_INITIALIZER(nbits) { \ + /* nbits. */ \ + nbits, \ + /* nlevels. */ \ + (BITMAP_GROUPS_L0(nbits) > BITMAP_GROUPS_L1(nbits)) + \ + (BITMAP_GROUPS_L1(nbits) > BITMAP_GROUPS_L2(nbits)) + \ + (BITMAP_GROUPS_L2(nbits) > BITMAP_GROUPS_L3(nbits)) + \ + (BITMAP_GROUPS_L3(nbits) > BITMAP_GROUPS_L4(nbits)) + 1, \ + /* levels. */ \ + { \ + {0}, \ + {BITMAP_GROUPS_L0(nbits)}, \ + {BITMAP_GROUPS_L1(nbits) + BITMAP_GROUPS_L0(nbits)}, \ + {BITMAP_GROUPS_L2(nbits) + BITMAP_GROUPS_L1(nbits) + \ + BITMAP_GROUPS_L0(nbits)}, \ + {BITMAP_GROUPS_L3(nbits) + BITMAP_GROUPS_L2(nbits) + \ + BITMAP_GROUPS_L1(nbits) + BITMAP_GROUPS_L0(nbits)}, \ + {BITMAP_GROUPS_L4(nbits) + BITMAP_GROUPS_L3(nbits) + \ + BITMAP_GROUPS_L2(nbits) + BITMAP_GROUPS_L1(nbits) \ + + BITMAP_GROUPS_L0(nbits)} \ + } \ +} + +#else /* BITMAP_USE_TREE */ + +#define BITMAP_GROUPS(nbits) BITMAP_BITS2GROUPS(nbits) +#define BITMAP_GROUPS_MAX BITMAP_BITS2GROUPS(BITMAP_MAXBITS) + +#define BITMAP_INFO_INITIALIZER(nbits) { \ + /* nbits. */ \ + nbits, \ + /* ngroups. */ \ + BITMAP_BITS2GROUPS(nbits) \ +} + +#endif /* BITMAP_USE_TREE */ + +typedef struct bitmap_level_s { + /* Offset of this level's groups within the array of groups. */ + size_t group_offset; +} bitmap_level_t; + +typedef struct bitmap_info_s { + /* Logical number of bits in bitmap (stored at bottom level). */ + size_t nbits; + +#ifdef BITMAP_USE_TREE + /* Number of levels necessary for nbits. */ + unsigned nlevels; + + /* + * Only the first (nlevels+1) elements are used, and levels are ordered + * bottom to top (e.g. the bottom level is stored in levels[0]). + */ + bitmap_level_t levels[BITMAP_MAX_LEVELS+1]; +#else /* BITMAP_USE_TREE */ + /* Number of groups necessary for nbits. */ + size_t ngroups; +#endif /* BITMAP_USE_TREE */ +} bitmap_info_t; + +void bitmap_info_init(bitmap_info_t *binfo, size_t nbits); +void bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo, bool fill); +size_t bitmap_size(const bitmap_info_t *binfo); + +static inline bool +bitmap_full(bitmap_t *bitmap, const bitmap_info_t *binfo) { +#ifdef BITMAP_USE_TREE + size_t rgoff = binfo->levels[binfo->nlevels].group_offset - 1; + bitmap_t rg = bitmap[rgoff]; + /* The bitmap is full iff the root group is 0. */ + return (rg == 0); +#else + size_t i; + + for (i = 0; i < binfo->ngroups; i++) { + if (bitmap[i] != 0) { + return false; + } + } + return true; +#endif +} + +static inline bool +bitmap_get(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit) { + size_t goff; + bitmap_t g; + + assert(bit < binfo->nbits); + goff = bit >> LG_BITMAP_GROUP_NBITS; + g = bitmap[goff]; + return !(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))); +} + +static inline void +bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit) { + size_t goff; + bitmap_t *gp; + bitmap_t g; + + assert(bit < binfo->nbits); + assert(!bitmap_get(bitmap, binfo, bit)); + goff = bit >> LG_BITMAP_GROUP_NBITS; + gp = &bitmap[goff]; + g = *gp; + assert(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))); + g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK); + *gp = g; + assert(bitmap_get(bitmap, binfo, bit)); +#ifdef BITMAP_USE_TREE + /* Propagate group state transitions up the tree. */ + if (g == 0) { + unsigned i; + for (i = 1; i < binfo->nlevels; i++) { + bit = goff; + goff = bit >> LG_BITMAP_GROUP_NBITS; + gp = &bitmap[binfo->levels[i].group_offset + goff]; + g = *gp; + assert(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))); + g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK); + *gp = g; + if (g != 0) { + break; + } + } + } +#endif +} + +/* ffu: find first unset >= bit. */ +static inline size_t +bitmap_ffu(const bitmap_t *bitmap, const bitmap_info_t *binfo, size_t min_bit) { + assert(min_bit < binfo->nbits); + +#ifdef BITMAP_USE_TREE + size_t bit = 0; + for (unsigned level = binfo->nlevels; level--;) { + size_t lg_bits_per_group = (LG_BITMAP_GROUP_NBITS * (level + + 1)); + bitmap_t group = bitmap[binfo->levels[level].group_offset + (bit + >> lg_bits_per_group)]; + unsigned group_nmask = (unsigned)(((min_bit > bit) ? (min_bit - + bit) : 0) >> (lg_bits_per_group - LG_BITMAP_GROUP_NBITS)); + assert(group_nmask <= BITMAP_GROUP_NBITS); + bitmap_t group_mask = ~((1LU << group_nmask) - 1); + bitmap_t group_masked = group & group_mask; + if (group_masked == 0LU) { + if (group == 0LU) { + return binfo->nbits; + } + /* + * min_bit was preceded by one or more unset bits in + * this group, but there are no other unset bits in this + * group. Try again starting at the first bit of the + * next sibling. This will recurse at most once per + * non-root level. + */ + size_t sib_base = bit + (ZU(1) << lg_bits_per_group); + assert(sib_base > min_bit); + assert(sib_base > bit); + if (sib_base >= binfo->nbits) { + return binfo->nbits; + } + return bitmap_ffu(bitmap, binfo, sib_base); + } + bit += ((size_t)ffs_lu(group_masked)) << + (lg_bits_per_group - LG_BITMAP_GROUP_NBITS); + } + assert(bit >= min_bit); + assert(bit < binfo->nbits); + return bit; +#else + size_t i = min_bit >> LG_BITMAP_GROUP_NBITS; + bitmap_t g = bitmap[i] & ~((1LU << (min_bit & BITMAP_GROUP_NBITS_MASK)) + - 1); + size_t bit; + do { + if (g != 0) { + bit = ffs_lu(g); + return (i << LG_BITMAP_GROUP_NBITS) + bit; + } + i++; + g = bitmap[i]; + } while (i < binfo->ngroups); + return binfo->nbits; +#endif +} + +/* sfu: set first unset. */ +static inline size_t +bitmap_sfu(bitmap_t *bitmap, const bitmap_info_t *binfo) { + size_t bit; + bitmap_t g; + unsigned i; + + assert(!bitmap_full(bitmap, binfo)); + +#ifdef BITMAP_USE_TREE + i = binfo->nlevels - 1; + g = bitmap[binfo->levels[i].group_offset]; + bit = ffs_lu(g); + while (i > 0) { + i--; + g = bitmap[binfo->levels[i].group_offset + bit]; + bit = (bit << LG_BITMAP_GROUP_NBITS) + ffs_lu(g); + } +#else + i = 0; + g = bitmap[0]; + while (g == 0) { + i++; + g = bitmap[i]; + } + bit = (i << LG_BITMAP_GROUP_NBITS) + ffs_lu(g); +#endif + bitmap_set(bitmap, binfo, bit); + return bit; +} + +static inline void +bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit) { + size_t goff; + bitmap_t *gp; + bitmap_t g; + UNUSED bool propagate; + + assert(bit < binfo->nbits); + assert(bitmap_get(bitmap, binfo, bit)); + goff = bit >> LG_BITMAP_GROUP_NBITS; + gp = &bitmap[goff]; + g = *gp; + propagate = (g == 0); + assert((g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))) == 0); + g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK); + *gp = g; + assert(!bitmap_get(bitmap, binfo, bit)); +#ifdef BITMAP_USE_TREE + /* Propagate group state transitions up the tree. */ + if (propagate) { + unsigned i; + for (i = 1; i < binfo->nlevels; i++) { + bit = goff; + goff = bit >> LG_BITMAP_GROUP_NBITS; + gp = &bitmap[binfo->levels[i].group_offset + goff]; + g = *gp; + propagate = (g == 0); + assert((g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))) + == 0); + g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK); + *gp = g; + if (!propagate) { + break; + } + } + } +#endif /* BITMAP_USE_TREE */ +} + +#endif /* JEMALLOC_INTERNAL_BITMAP_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/buf_writer.h b/deps/jemalloc/include/jemalloc/internal/buf_writer.h new file mode 100644 index 0000000..37aa6de --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/buf_writer.h @@ -0,0 +1,32 @@ +#ifndef JEMALLOC_INTERNAL_BUF_WRITER_H +#define JEMALLOC_INTERNAL_BUF_WRITER_H + +/* + * Note: when using the buffered writer, cbopaque is passed to write_cb only + * when the buffer is flushed. It would make a difference if cbopaque points + * to something that's changing for each write_cb call, or something that + * affects write_cb in a way dependent on the content of the output string. + * However, the most typical usage case in practice is that cbopaque points to + * some "option like" content for the write_cb, so it doesn't matter. + */ + +typedef struct { + write_cb_t *write_cb; + void *cbopaque; + char *buf; + size_t buf_size; + size_t buf_end; + bool internal_buf; +} buf_writer_t; + +bool buf_writer_init(tsdn_t *tsdn, buf_writer_t *buf_writer, + write_cb_t *write_cb, void *cbopaque, char *buf, size_t buf_len); +void buf_writer_flush(buf_writer_t *buf_writer); +write_cb_t buf_writer_cb; +void buf_writer_terminate(tsdn_t *tsdn, buf_writer_t *buf_writer); + +typedef ssize_t (read_cb_t)(void *read_cbopaque, void *buf, size_t limit); +void buf_writer_pipe(buf_writer_t *buf_writer, read_cb_t *read_cb, + void *read_cbopaque); + +#endif /* JEMALLOC_INTERNAL_BUF_WRITER_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/cache_bin.h b/deps/jemalloc/include/jemalloc/internal/cache_bin.h new file mode 100644 index 0000000..caf5be3 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/cache_bin.h @@ -0,0 +1,670 @@ +#ifndef JEMALLOC_INTERNAL_CACHE_BIN_H +#define JEMALLOC_INTERNAL_CACHE_BIN_H + +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/sz.h" + +/* + * The cache_bins are the mechanism that the tcache and the arena use to + * communicate. The tcache fills from and flushes to the arena by passing a + * cache_bin_t to fill/flush. When the arena needs to pull stats from the + * tcaches associated with it, it does so by iterating over its + * cache_bin_array_descriptor_t objects and reading out per-bin stats it + * contains. This makes it so that the arena need not know about the existence + * of the tcache at all. + */ + +/* + * The size in bytes of each cache bin stack. We also use this to indicate + * *counts* of individual objects. + */ +typedef uint16_t cache_bin_sz_t; + +/* + * Leave a noticeable mark pattern on the cache bin stack boundaries, in case a + * bug starts leaking those. Make it look like the junk pattern but be distinct + * from it. + */ +static const uintptr_t cache_bin_preceding_junk = + (uintptr_t)0x7a7a7a7a7a7a7a7aULL; +/* Note: a7 vs. 7a above -- this tells you which pointer leaked. */ +static const uintptr_t cache_bin_trailing_junk = + (uintptr_t)0xa7a7a7a7a7a7a7a7ULL; + +/* + * That implies the following value, for the maximum number of items in any + * individual bin. The cache bins track their bounds looking just at the low + * bits of a pointer, compared against a cache_bin_sz_t. So that's + * 1 << (sizeof(cache_bin_sz_t) * 8) + * bytes spread across pointer sized objects to get the maximum. + */ +#define CACHE_BIN_NCACHED_MAX (((size_t)1 << sizeof(cache_bin_sz_t) * 8) \ + / sizeof(void *) - 1) + +/* + * This lives inside the cache_bin (for locality reasons), and is initialized + * alongside it, but is otherwise not modified by any cache bin operations. + * It's logically public and maintained by its callers. + */ +typedef struct cache_bin_stats_s cache_bin_stats_t; +struct cache_bin_stats_s { + /* + * Number of allocation requests that corresponded to the size of this + * bin. + */ + uint64_t nrequests; +}; + +/* + * Read-only information associated with each element of tcache_t's tbins array + * is stored separately, mainly to reduce memory usage. + */ +typedef struct cache_bin_info_s cache_bin_info_t; +struct cache_bin_info_s { + cache_bin_sz_t ncached_max; +}; + +/* + * Responsible for caching allocations associated with a single size. + * + * Several pointers are used to track the stack. To save on metadata bytes, + * only the stack_head is a full sized pointer (which is dereferenced on the + * fastpath), while the others store only the low 16 bits -- this is correct + * because a single stack never takes more space than 2^16 bytes, and at the + * same time only equality checks are performed on the low bits. + * + * (low addr) (high addr) + * |------stashed------|------available------|------cached-----| + * ^ ^ ^ ^ + * low_bound(derived) low_bits_full stack_head low_bits_empty + */ +typedef struct cache_bin_s cache_bin_t; +struct cache_bin_s { + /* + * The stack grows down. Whenever the bin is nonempty, the head points + * to an array entry containing a valid allocation. When it is empty, + * the head points to one element past the owned array. + */ + void **stack_head; + /* + * cur_ptr and stats are both modified frequently. Let's keep them + * close so that they have a higher chance of being on the same + * cacheline, thus less write-backs. + */ + cache_bin_stats_t tstats; + + /* + * The low bits of the address of the first item in the stack that + * hasn't been used since the last GC, to track the low water mark (min + * # of cached items). + * + * Since the stack grows down, this is a higher address than + * low_bits_full. + */ + uint16_t low_bits_low_water; + + /* + * The low bits of the value that stack_head will take on when the array + * is full (of cached & stashed items). But remember that stack_head + * always points to a valid item when the array is nonempty -- this is + * in the array. + * + * Recall that since the stack grows down, this is the lowest available + * address in the array for caching. Only adjusted when stashing items. + */ + uint16_t low_bits_full; + + /* + * The low bits of the value that stack_head will take on when the array + * is empty. + * + * The stack grows down -- this is one past the highest address in the + * array. Immutable after initialization. + */ + uint16_t low_bits_empty; +}; + +/* + * The cache_bins live inside the tcache, but the arena (by design) isn't + * supposed to know much about tcache internals. To let the arena iterate over + * associated bins, we keep (with the tcache) a linked list of + * cache_bin_array_descriptor_ts that tell the arena how to find the bins. + */ +typedef struct cache_bin_array_descriptor_s cache_bin_array_descriptor_t; +struct cache_bin_array_descriptor_s { + /* + * The arena keeps a list of the cache bins associated with it, for + * stats collection. + */ + ql_elm(cache_bin_array_descriptor_t) link; + /* Pointers to the tcache bins. */ + cache_bin_t *bins; +}; + +static inline void +cache_bin_array_descriptor_init(cache_bin_array_descriptor_t *descriptor, + cache_bin_t *bins) { + ql_elm_new(descriptor, link); + descriptor->bins = bins; +} + +JEMALLOC_ALWAYS_INLINE bool +cache_bin_nonfast_aligned(const void *ptr) { + if (!config_uaf_detection) { + return false; + } + /* + * Currently we use alignment to decide which pointer to junk & stash on + * dealloc (for catching use-after-free). In some common cases a + * page-aligned check is needed already (sdalloc w/ config_prof), so we + * are getting it more or less for free -- no added instructions on + * free_fastpath. + * + * Another way of deciding which pointer to sample, is adding another + * thread_event to pick one every N bytes. That also adds no cost on + * the fastpath, however it will tend to pick large allocations which is + * not the desired behavior. + */ + return ((uintptr_t)ptr & san_cache_bin_nonfast_mask) == 0; +} + +/* Returns ncached_max: Upper limit on ncached. */ +static inline cache_bin_sz_t +cache_bin_info_ncached_max(cache_bin_info_t *info) { + return info->ncached_max; +} + +/* + * Internal. + * + * Asserts that the pointer associated with earlier is <= the one associated + * with later. + */ +static inline void +cache_bin_assert_earlier(cache_bin_t *bin, uint16_t earlier, uint16_t later) { + if (earlier > later) { + assert(bin->low_bits_full > bin->low_bits_empty); + } +} + +/* + * Internal. + * + * Does difference calculations that handle wraparound correctly. Earlier must + * be associated with the position earlier in memory. + */ +static inline uint16_t +cache_bin_diff(cache_bin_t *bin, uint16_t earlier, uint16_t later, bool racy) { + /* + * When it's racy, bin->low_bits_full can be modified concurrently. It + * can cross the uint16_t max value and become less than + * bin->low_bits_empty at the time of the check. + */ + if (!racy) { + cache_bin_assert_earlier(bin, earlier, later); + } + return later - earlier; +} + +/* + * Number of items currently cached in the bin, without checking ncached_max. + * We require specifying whether or not the request is racy or not (i.e. whether + * or not concurrent modifications are possible). + */ +static inline cache_bin_sz_t +cache_bin_ncached_get_internal(cache_bin_t *bin, bool racy) { + cache_bin_sz_t diff = cache_bin_diff(bin, + (uint16_t)(uintptr_t)bin->stack_head, bin->low_bits_empty, racy); + cache_bin_sz_t n = diff / sizeof(void *); + /* + * We have undefined behavior here; if this function is called from the + * arena stats updating code, then stack_head could change from the + * first line to the next one. Morally, these loads should be atomic, + * but compilers won't currently generate comparisons with in-memory + * operands against atomics, and these variables get accessed on the + * fast paths. This should still be "safe" in the sense of generating + * the correct assembly for the foreseeable future, though. + */ + assert(n == 0 || *(bin->stack_head) != NULL || racy); + return n; +} + +/* + * Number of items currently cached in the bin, with checking ncached_max. The + * caller must know that no concurrent modification of the cache_bin is + * possible. + */ +static inline cache_bin_sz_t +cache_bin_ncached_get_local(cache_bin_t *bin, cache_bin_info_t *info) { + cache_bin_sz_t n = cache_bin_ncached_get_internal(bin, + /* racy */ false); + assert(n <= cache_bin_info_ncached_max(info)); + return n; +} + +/* + * Internal. + * + * A pointer to the position one past the end of the backing array. + * + * Do not call if racy, because both 'bin->stack_head' and 'bin->low_bits_full' + * are subject to concurrent modifications. + */ +static inline void ** +cache_bin_empty_position_get(cache_bin_t *bin) { + cache_bin_sz_t diff = cache_bin_diff(bin, + (uint16_t)(uintptr_t)bin->stack_head, bin->low_bits_empty, + /* racy */ false); + uintptr_t empty_bits = (uintptr_t)bin->stack_head + diff; + void **ret = (void **)empty_bits; + + assert(ret >= bin->stack_head); + + return ret; +} + +/* + * Internal. + * + * Calculates low bits of the lower bound of the usable cache bin's range (see + * cache_bin_t visual representation above). + * + * No values are concurrently modified, so should be safe to read in a + * multithreaded environment. Currently concurrent access happens only during + * arena statistics collection. + */ +static inline uint16_t +cache_bin_low_bits_low_bound_get(cache_bin_t *bin, cache_bin_info_t *info) { + return (uint16_t)bin->low_bits_empty - + info->ncached_max * sizeof(void *); +} + +/* + * Internal. + * + * A pointer to the position with the lowest address of the backing array. + */ +static inline void ** +cache_bin_low_bound_get(cache_bin_t *bin, cache_bin_info_t *info) { + cache_bin_sz_t ncached_max = cache_bin_info_ncached_max(info); + void **ret = cache_bin_empty_position_get(bin) - ncached_max; + assert(ret <= bin->stack_head); + + return ret; +} + +/* + * As the name implies. This is important since it's not correct to try to + * batch fill a nonempty cache bin. + */ +static inline void +cache_bin_assert_empty(cache_bin_t *bin, cache_bin_info_t *info) { + assert(cache_bin_ncached_get_local(bin, info) == 0); + assert(cache_bin_empty_position_get(bin) == bin->stack_head); +} + +/* + * Get low water, but without any of the correctness checking we do for the + * caller-usable version, if we are temporarily breaking invariants (like + * ncached >= low_water during flush). + */ +static inline cache_bin_sz_t +cache_bin_low_water_get_internal(cache_bin_t *bin) { + return cache_bin_diff(bin, bin->low_bits_low_water, + bin->low_bits_empty, /* racy */ false) / sizeof(void *); +} + +/* Returns the numeric value of low water in [0, ncached]. */ +static inline cache_bin_sz_t +cache_bin_low_water_get(cache_bin_t *bin, cache_bin_info_t *info) { + cache_bin_sz_t low_water = cache_bin_low_water_get_internal(bin); + assert(low_water <= cache_bin_info_ncached_max(info)); + assert(low_water <= cache_bin_ncached_get_local(bin, info)); + + cache_bin_assert_earlier(bin, (uint16_t)(uintptr_t)bin->stack_head, + bin->low_bits_low_water); + + return low_water; +} + +/* + * Indicates that the current cache bin position should be the low water mark + * going forward. + */ +static inline void +cache_bin_low_water_set(cache_bin_t *bin) { + bin->low_bits_low_water = (uint16_t)(uintptr_t)bin->stack_head; +} + +static inline void +cache_bin_low_water_adjust(cache_bin_t *bin) { + if (cache_bin_ncached_get_internal(bin, /* racy */ false) + < cache_bin_low_water_get_internal(bin)) { + cache_bin_low_water_set(bin); + } +} + +JEMALLOC_ALWAYS_INLINE void * +cache_bin_alloc_impl(cache_bin_t *bin, bool *success, bool adjust_low_water) { + /* + * success (instead of ret) should be checked upon the return of this + * function. We avoid checking (ret == NULL) because there is never a + * null stored on the avail stack (which is unknown to the compiler), + * and eagerly checking ret would cause pipeline stall (waiting for the + * cacheline). + */ + + /* + * This may read from the empty position; however the loaded value won't + * be used. It's safe because the stack has one more slot reserved. + */ + void *ret = *bin->stack_head; + uint16_t low_bits = (uint16_t)(uintptr_t)bin->stack_head; + void **new_head = bin->stack_head + 1; + + /* + * Note that the low water mark is at most empty; if we pass this check, + * we know we're non-empty. + */ + if (likely(low_bits != bin->low_bits_low_water)) { + bin->stack_head = new_head; + *success = true; + return ret; + } + if (!adjust_low_water) { + *success = false; + return NULL; + } + /* + * In the fast-path case where we call alloc_easy and then alloc, the + * previous checking and computation is optimized away -- we didn't + * actually commit any of our operations. + */ + if (likely(low_bits != bin->low_bits_empty)) { + bin->stack_head = new_head; + bin->low_bits_low_water = (uint16_t)(uintptr_t)new_head; + *success = true; + return ret; + } + *success = false; + return NULL; +} + +/* + * Allocate an item out of the bin, failing if we're at the low-water mark. + */ +JEMALLOC_ALWAYS_INLINE void * +cache_bin_alloc_easy(cache_bin_t *bin, bool *success) { + /* We don't look at info if we're not adjusting low-water. */ + return cache_bin_alloc_impl(bin, success, false); +} + +/* + * Allocate an item out of the bin, even if we're currently at the low-water + * mark (and failing only if the bin is empty). + */ +JEMALLOC_ALWAYS_INLINE void * +cache_bin_alloc(cache_bin_t *bin, bool *success) { + return cache_bin_alloc_impl(bin, success, true); +} + +JEMALLOC_ALWAYS_INLINE cache_bin_sz_t +cache_bin_alloc_batch(cache_bin_t *bin, size_t num, void **out) { + cache_bin_sz_t n = cache_bin_ncached_get_internal(bin, + /* racy */ false); + if (n > num) { + n = (cache_bin_sz_t)num; + } + memcpy(out, bin->stack_head, n * sizeof(void *)); + bin->stack_head += n; + cache_bin_low_water_adjust(bin); + + return n; +} + +JEMALLOC_ALWAYS_INLINE bool +cache_bin_full(cache_bin_t *bin) { + return ((uint16_t)(uintptr_t)bin->stack_head == bin->low_bits_full); +} + +/* + * Free an object into the given bin. Fails only if the bin is full. + */ +JEMALLOC_ALWAYS_INLINE bool +cache_bin_dalloc_easy(cache_bin_t *bin, void *ptr) { + if (unlikely(cache_bin_full(bin))) { + return false; + } + + bin->stack_head--; + *bin->stack_head = ptr; + cache_bin_assert_earlier(bin, bin->low_bits_full, + (uint16_t)(uintptr_t)bin->stack_head); + + return true; +} + +/* Returns false if failed to stash (i.e. bin is full). */ +JEMALLOC_ALWAYS_INLINE bool +cache_bin_stash(cache_bin_t *bin, void *ptr) { + if (cache_bin_full(bin)) { + return false; + } + + /* Stash at the full position, in the [full, head) range. */ + uint16_t low_bits_head = (uint16_t)(uintptr_t)bin->stack_head; + /* Wraparound handled as well. */ + uint16_t diff = cache_bin_diff(bin, bin->low_bits_full, low_bits_head, + /* racy */ false); + *(void **)((uintptr_t)bin->stack_head - diff) = ptr; + + assert(!cache_bin_full(bin)); + bin->low_bits_full += sizeof(void *); + cache_bin_assert_earlier(bin, bin->low_bits_full, low_bits_head); + + return true; +} + +/* + * Get the number of stashed pointers. + * + * When called from a thread not owning the TLS (i.e. racy = true), it's + * important to keep in mind that 'bin->stack_head' and 'bin->low_bits_full' can + * be modified concurrently and almost none assertions about their values can be + * made. + */ +JEMALLOC_ALWAYS_INLINE cache_bin_sz_t +cache_bin_nstashed_get_internal(cache_bin_t *bin, cache_bin_info_t *info, + bool racy) { + cache_bin_sz_t ncached_max = cache_bin_info_ncached_max(info); + uint16_t low_bits_low_bound = cache_bin_low_bits_low_bound_get(bin, + info); + + cache_bin_sz_t n = cache_bin_diff(bin, low_bits_low_bound, + bin->low_bits_full, racy) / sizeof(void *); + assert(n <= ncached_max); + + if (!racy) { + /* Below are for assertions only. */ + void **low_bound = cache_bin_low_bound_get(bin, info); + + assert((uint16_t)(uintptr_t)low_bound == low_bits_low_bound); + void *stashed = *(low_bound + n - 1); + bool aligned = cache_bin_nonfast_aligned(stashed); +#ifdef JEMALLOC_JET + /* Allow arbitrary pointers to be stashed in tests. */ + aligned = true; +#endif + assert(n == 0 || (stashed != NULL && aligned)); + } + + return n; +} + +JEMALLOC_ALWAYS_INLINE cache_bin_sz_t +cache_bin_nstashed_get_local(cache_bin_t *bin, cache_bin_info_t *info) { + cache_bin_sz_t n = cache_bin_nstashed_get_internal(bin, info, + /* racy */ false); + assert(n <= cache_bin_info_ncached_max(info)); + return n; +} + +/* + * Obtain a racy view of the number of items currently in the cache bin, in the + * presence of possible concurrent modifications. + */ +static inline void +cache_bin_nitems_get_remote(cache_bin_t *bin, cache_bin_info_t *info, + cache_bin_sz_t *ncached, cache_bin_sz_t *nstashed) { + cache_bin_sz_t n = cache_bin_ncached_get_internal(bin, /* racy */ true); + assert(n <= cache_bin_info_ncached_max(info)); + *ncached = n; + + n = cache_bin_nstashed_get_internal(bin, info, /* racy */ true); + assert(n <= cache_bin_info_ncached_max(info)); + *nstashed = n; + /* Note that cannot assert ncached + nstashed <= ncached_max (racy). */ +} + +/* + * Filling and flushing are done in batch, on arrays of void *s. For filling, + * the arrays go forward, and can be accessed with ordinary array arithmetic. + * For flushing, we work from the end backwards, and so need to use special + * accessors that invert the usual ordering. + * + * This is important for maintaining first-fit; the arena code fills with + * earliest objects first, and so those are the ones we should return first for + * cache_bin_alloc calls. When flushing, we should flush the objects that we + * wish to return later; those at the end of the array. This is better for the + * first-fit heuristic as well as for cache locality; the most recently freed + * objects are the ones most likely to still be in cache. + * + * This all sounds very hand-wavey and theoretical, but reverting the ordering + * on one or the other pathway leads to measurable slowdowns. + */ + +typedef struct cache_bin_ptr_array_s cache_bin_ptr_array_t; +struct cache_bin_ptr_array_s { + cache_bin_sz_t n; + void **ptr; +}; + +/* + * Declare a cache_bin_ptr_array_t sufficient for nval items. + * + * In the current implementation, this could be just part of a + * cache_bin_ptr_array_init_... call, since we reuse the cache bin stack memory. + * Indirecting behind a macro, though, means experimenting with linked-list + * representations is easy (since they'll require an alloca in the calling + * frame). + */ +#define CACHE_BIN_PTR_ARRAY_DECLARE(name, nval) \ + cache_bin_ptr_array_t name; \ + name.n = (nval) + +/* + * Start a fill. The bin must be empty, and This must be followed by a + * finish_fill call before doing any alloc/dalloc operations on the bin. + */ +static inline void +cache_bin_init_ptr_array_for_fill(cache_bin_t *bin, cache_bin_info_t *info, + cache_bin_ptr_array_t *arr, cache_bin_sz_t nfill) { + cache_bin_assert_empty(bin, info); + arr->ptr = cache_bin_empty_position_get(bin) - nfill; +} + +/* + * While nfill in cache_bin_init_ptr_array_for_fill is the number we *intend* to + * fill, nfilled here is the number we actually filled (which may be less, in + * case of OOM. + */ +static inline void +cache_bin_finish_fill(cache_bin_t *bin, cache_bin_info_t *info, + cache_bin_ptr_array_t *arr, cache_bin_sz_t nfilled) { + cache_bin_assert_empty(bin, info); + void **empty_position = cache_bin_empty_position_get(bin); + if (nfilled < arr->n) { + memmove(empty_position - nfilled, empty_position - arr->n, + nfilled * sizeof(void *)); + } + bin->stack_head = empty_position - nfilled; +} + +/* + * Same deal, but with flush. Unlike fill (which can fail), the user must flush + * everything we give them. + */ +static inline void +cache_bin_init_ptr_array_for_flush(cache_bin_t *bin, cache_bin_info_t *info, + cache_bin_ptr_array_t *arr, cache_bin_sz_t nflush) { + arr->ptr = cache_bin_empty_position_get(bin) - nflush; + assert(cache_bin_ncached_get_local(bin, info) == 0 + || *arr->ptr != NULL); +} + +static inline void +cache_bin_finish_flush(cache_bin_t *bin, cache_bin_info_t *info, + cache_bin_ptr_array_t *arr, cache_bin_sz_t nflushed) { + unsigned rem = cache_bin_ncached_get_local(bin, info) - nflushed; + memmove(bin->stack_head + nflushed, bin->stack_head, + rem * sizeof(void *)); + bin->stack_head = bin->stack_head + nflushed; + cache_bin_low_water_adjust(bin); +} + +static inline void +cache_bin_init_ptr_array_for_stashed(cache_bin_t *bin, szind_t binind, + cache_bin_info_t *info, cache_bin_ptr_array_t *arr, + cache_bin_sz_t nstashed) { + assert(nstashed > 0); + assert(cache_bin_nstashed_get_local(bin, info) == nstashed); + + void **low_bound = cache_bin_low_bound_get(bin, info); + arr->ptr = low_bound; + assert(*arr->ptr != NULL); +} + +static inline void +cache_bin_finish_flush_stashed(cache_bin_t *bin, cache_bin_info_t *info) { + void **low_bound = cache_bin_low_bound_get(bin, info); + + /* Reset the bin local full position. */ + bin->low_bits_full = (uint16_t)(uintptr_t)low_bound; + assert(cache_bin_nstashed_get_local(bin, info) == 0); +} + +/* + * Initialize a cache_bin_info to represent up to the given number of items in + * the cache_bins it is associated with. + */ +void cache_bin_info_init(cache_bin_info_t *bin_info, + cache_bin_sz_t ncached_max); +/* + * Given an array of initialized cache_bin_info_ts, determine how big an + * allocation is required to initialize a full set of cache_bin_ts. + */ +void cache_bin_info_compute_alloc(cache_bin_info_t *infos, szind_t ninfos, + size_t *size, size_t *alignment); + +/* + * Actually initialize some cache bins. Callers should allocate the backing + * memory indicated by a call to cache_bin_compute_alloc. They should then + * preincrement, call init once for each bin and info, and then call + * cache_bin_postincrement. *alloc_cur will then point immediately past the end + * of the allocation. + */ +void cache_bin_preincrement(cache_bin_info_t *infos, szind_t ninfos, + void *alloc, size_t *cur_offset); +void cache_bin_postincrement(cache_bin_info_t *infos, szind_t ninfos, + void *alloc, size_t *cur_offset); +void cache_bin_init(cache_bin_t *bin, cache_bin_info_t *info, void *alloc, + size_t *cur_offset); + +/* + * If a cache bin was zero initialized (either because it lives in static or + * thread-local storage, or was memset to 0), this function indicates whether or + * not cache_bin_init was called on it. + */ +bool cache_bin_still_zero_initialized(cache_bin_t *bin); + +#endif /* JEMALLOC_INTERNAL_CACHE_BIN_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/ckh.h b/deps/jemalloc/include/jemalloc/internal/ckh.h new file mode 100644 index 0000000..7b3850b --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ckh.h @@ -0,0 +1,101 @@ +#ifndef JEMALLOC_INTERNAL_CKH_H +#define JEMALLOC_INTERNAL_CKH_H + +#include "jemalloc/internal/tsd.h" + +/* Cuckoo hashing implementation. Skip to the end for the interface. */ + +/******************************************************************************/ +/* INTERNAL DEFINITIONS -- IGNORE */ +/******************************************************************************/ + +/* Maintain counters used to get an idea of performance. */ +/* #define CKH_COUNT */ +/* Print counter values in ckh_delete() (requires CKH_COUNT). */ +/* #define CKH_VERBOSE */ + +/* + * There are 2^LG_CKH_BUCKET_CELLS cells in each hash table bucket. Try to fit + * one bucket per L1 cache line. + */ +#define LG_CKH_BUCKET_CELLS (LG_CACHELINE - LG_SIZEOF_PTR - 1) + +/* Typedefs to allow easy function pointer passing. */ +typedef void ckh_hash_t (const void *, size_t[2]); +typedef bool ckh_keycomp_t (const void *, const void *); + +/* Hash table cell. */ +typedef struct { + const void *key; + const void *data; +} ckhc_t; + +/* The hash table itself. */ +typedef struct { +#ifdef CKH_COUNT + /* Counters used to get an idea of performance. */ + uint64_t ngrows; + uint64_t nshrinks; + uint64_t nshrinkfails; + uint64_t ninserts; + uint64_t nrelocs; +#endif + + /* Used for pseudo-random number generation. */ + uint64_t prng_state; + + /* Total number of items. */ + size_t count; + + /* + * Minimum and current number of hash table buckets. There are + * 2^LG_CKH_BUCKET_CELLS cells per bucket. + */ + unsigned lg_minbuckets; + unsigned lg_curbuckets; + + /* Hash and comparison functions. */ + ckh_hash_t *hash; + ckh_keycomp_t *keycomp; + + /* Hash table with 2^lg_curbuckets buckets. */ + ckhc_t *tab; +} ckh_t; + +/******************************************************************************/ +/* BEGIN PUBLIC API */ +/******************************************************************************/ + +/* Lifetime management. Minitems is the initial capacity. */ +bool ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash, + ckh_keycomp_t *keycomp); +void ckh_delete(tsd_t *tsd, ckh_t *ckh); + +/* Get the number of elements in the set. */ +size_t ckh_count(ckh_t *ckh); + +/* + * To iterate over the elements in the table, initialize *tabind to 0 and call + * this function until it returns true. Each call that returns false will + * update *key and *data to the next element in the table, assuming the pointers + * are non-NULL. + */ +bool ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data); + +/* + * Basic hash table operations -- insert, removal, lookup. For ckh_remove and + * ckh_search, key or data can be NULL. The hash-table only stores pointers to + * the key and value, and doesn't do any lifetime management. + */ +bool ckh_insert(tsd_t *tsd, ckh_t *ckh, const void *key, const void *data); +bool ckh_remove(tsd_t *tsd, ckh_t *ckh, const void *searchkey, void **key, + void **data); +bool ckh_search(ckh_t *ckh, const void *searchkey, void **key, void **data); + +/* Some useful hash and comparison functions for strings and pointers. */ +void ckh_string_hash(const void *key, size_t r_hash[2]); +bool ckh_string_keycomp(const void *k1, const void *k2); +void ckh_pointer_hash(const void *key, size_t r_hash[2]); +bool ckh_pointer_keycomp(const void *k1, const void *k2); + +#endif /* JEMALLOC_INTERNAL_CKH_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/counter.h b/deps/jemalloc/include/jemalloc/internal/counter.h new file mode 100644 index 0000000..79abf06 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/counter.h @@ -0,0 +1,34 @@ +#ifndef JEMALLOC_INTERNAL_COUNTER_H +#define JEMALLOC_INTERNAL_COUNTER_H + +#include "jemalloc/internal/mutex.h" + +typedef struct counter_accum_s { + LOCKEDINT_MTX_DECLARE(mtx) + locked_u64_t accumbytes; + uint64_t interval; +} counter_accum_t; + +JEMALLOC_ALWAYS_INLINE bool +counter_accum(tsdn_t *tsdn, counter_accum_t *counter, uint64_t bytes) { + uint64_t interval = counter->interval; + assert(interval > 0); + LOCKEDINT_MTX_LOCK(tsdn, counter->mtx); + /* + * If the event moves fast enough (and/or if the event handling is slow + * enough), extreme overflow can cause counter trigger coalescing. + * This is an intentional mechanism that avoids rate-limiting + * allocation. + */ + bool overflow = locked_inc_mod_u64(tsdn, LOCKEDINT_MTX(counter->mtx), + &counter->accumbytes, bytes, interval); + LOCKEDINT_MTX_UNLOCK(tsdn, counter->mtx); + return overflow; +} + +bool counter_accum_init(counter_accum_t *counter, uint64_t interval); +void counter_prefork(tsdn_t *tsdn, counter_accum_t *counter); +void counter_postfork_parent(tsdn_t *tsdn, counter_accum_t *counter); +void counter_postfork_child(tsdn_t *tsdn, counter_accum_t *counter); + +#endif /* JEMALLOC_INTERNAL_COUNTER_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/ctl.h b/deps/jemalloc/include/jemalloc/internal/ctl.h new file mode 100644 index 0000000..63d27f8 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ctl.h @@ -0,0 +1,159 @@ +#ifndef JEMALLOC_INTERNAL_CTL_H +#define JEMALLOC_INTERNAL_CTL_H + +#include "jemalloc/internal/jemalloc_internal_types.h" +#include "jemalloc/internal/malloc_io.h" +#include "jemalloc/internal/mutex_prof.h" +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/stats.h" + +/* Maximum ctl tree depth. */ +#define CTL_MAX_DEPTH 7 + +typedef struct ctl_node_s { + bool named; +} ctl_node_t; + +typedef struct ctl_named_node_s { + ctl_node_t node; + const char *name; + /* If (nchildren == 0), this is a terminal node. */ + size_t nchildren; + const ctl_node_t *children; + int (*ctl)(tsd_t *, const size_t *, size_t, void *, size_t *, void *, + size_t); +} ctl_named_node_t; + +typedef struct ctl_indexed_node_s { + struct ctl_node_s node; + const ctl_named_node_t *(*index)(tsdn_t *, const size_t *, size_t, + size_t); +} ctl_indexed_node_t; + +typedef struct ctl_arena_stats_s { + arena_stats_t astats; + + /* Aggregate stats for small size classes, based on bin stats. */ + size_t allocated_small; + uint64_t nmalloc_small; + uint64_t ndalloc_small; + uint64_t nrequests_small; + uint64_t nfills_small; + uint64_t nflushes_small; + + bin_stats_data_t bstats[SC_NBINS]; + arena_stats_large_t lstats[SC_NSIZES - SC_NBINS]; + pac_estats_t estats[SC_NPSIZES]; + hpa_shard_stats_t hpastats; + sec_stats_t secstats; +} ctl_arena_stats_t; + +typedef struct ctl_stats_s { + size_t allocated; + size_t active; + size_t metadata; + size_t metadata_thp; + size_t resident; + size_t mapped; + size_t retained; + + background_thread_stats_t background_thread; + mutex_prof_data_t mutex_prof_data[mutex_prof_num_global_mutexes]; +} ctl_stats_t; + +typedef struct ctl_arena_s ctl_arena_t; +struct ctl_arena_s { + unsigned arena_ind; + bool initialized; + ql_elm(ctl_arena_t) destroyed_link; + + /* Basic stats, supported even if !config_stats. */ + unsigned nthreads; + const char *dss; + ssize_t dirty_decay_ms; + ssize_t muzzy_decay_ms; + size_t pactive; + size_t pdirty; + size_t pmuzzy; + + /* NULL if !config_stats. */ + ctl_arena_stats_t *astats; +}; + +typedef struct ctl_arenas_s { + uint64_t epoch; + unsigned narenas; + ql_head(ctl_arena_t) destroyed; + + /* + * Element 0 corresponds to merged stats for extant arenas (accessed via + * MALLCTL_ARENAS_ALL), element 1 corresponds to merged stats for + * destroyed arenas (accessed via MALLCTL_ARENAS_DESTROYED), and the + * remaining MALLOCX_ARENA_LIMIT elements correspond to arenas. + */ + ctl_arena_t *arenas[2 + MALLOCX_ARENA_LIMIT]; +} ctl_arenas_t; + +int ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp, + void *newp, size_t newlen); +int ctl_nametomib(tsd_t *tsd, const char *name, size_t *mibp, size_t *miblenp); +int ctl_bymib(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp, + size_t *oldlenp, void *newp, size_t newlen); +int ctl_mibnametomib(tsd_t *tsd, size_t *mib, size_t miblen, const char *name, + size_t *miblenp); +int ctl_bymibname(tsd_t *tsd, size_t *mib, size_t miblen, const char *name, + size_t *miblenp, void *oldp, size_t *oldlenp, void *newp, size_t newlen); +bool ctl_boot(void); +void ctl_prefork(tsdn_t *tsdn); +void ctl_postfork_parent(tsdn_t *tsdn); +void ctl_postfork_child(tsdn_t *tsdn); +void ctl_mtx_assert_held(tsdn_t *tsdn); + +#define xmallctl(name, oldp, oldlenp, newp, newlen) do { \ + if (je_mallctl(name, oldp, oldlenp, newp, newlen) \ + != 0) { \ + malloc_printf( \ + "<jemalloc>: Failure in xmallctl(\"%s\", ...)\n", \ + name); \ + abort(); \ + } \ +} while (0) + +#define xmallctlnametomib(name, mibp, miblenp) do { \ + if (je_mallctlnametomib(name, mibp, miblenp) != 0) { \ + malloc_printf("<jemalloc>: Failure in " \ + "xmallctlnametomib(\"%s\", ...)\n", name); \ + abort(); \ + } \ +} while (0) + +#define xmallctlbymib(mib, miblen, oldp, oldlenp, newp, newlen) do { \ + if (je_mallctlbymib(mib, miblen, oldp, oldlenp, newp, \ + newlen) != 0) { \ + malloc_write( \ + "<jemalloc>: Failure in xmallctlbymib()\n"); \ + abort(); \ + } \ +} while (0) + +#define xmallctlmibnametomib(mib, miblen, name, miblenp) do { \ + if (ctl_mibnametomib(tsd_fetch(), mib, miblen, name, miblenp) \ + != 0) { \ + malloc_write( \ + "<jemalloc>: Failure in ctl_mibnametomib()\n"); \ + abort(); \ + } \ +} while (0) + +#define xmallctlbymibname(mib, miblen, name, miblenp, oldp, oldlenp, \ + newp, newlen) do { \ + if (ctl_bymibname(tsd_fetch(), mib, miblen, name, miblenp, \ + oldp, oldlenp, newp, newlen) != 0) { \ + malloc_write( \ + "<jemalloc>: Failure in ctl_bymibname()\n"); \ + abort(); \ + } \ +} while (0) + +#endif /* JEMALLOC_INTERNAL_CTL_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/decay.h b/deps/jemalloc/include/jemalloc/internal/decay.h new file mode 100644 index 0000000..cf6a9d2 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/decay.h @@ -0,0 +1,186 @@ +#ifndef JEMALLOC_INTERNAL_DECAY_H +#define JEMALLOC_INTERNAL_DECAY_H + +#include "jemalloc/internal/smoothstep.h" + +#define DECAY_UNBOUNDED_TIME_TO_PURGE ((uint64_t)-1) + +/* + * The decay_t computes the number of pages we should purge at any given time. + * Page allocators inform a decay object when pages enter a decay-able state + * (i.e. dirty or muzzy), and query it to determine how many pages should be + * purged at any given time. + * + * This is mostly a single-threaded data structure and doesn't care about + * synchronization at all; it's the caller's responsibility to manage their + * synchronization on their own. There are two exceptions: + * 1) It's OK to racily call decay_ms_read (i.e. just the simplest state query). + * 2) The mtx and purging fields live (and are initialized) here, but are + * logically owned by the page allocator. This is just a convenience (since + * those fields would be duplicated for both the dirty and muzzy states + * otherwise). + */ +typedef struct decay_s decay_t; +struct decay_s { + /* Synchronizes all non-atomic fields. */ + malloc_mutex_t mtx; + /* + * True if a thread is currently purging the extents associated with + * this decay structure. + */ + bool purging; + /* + * Approximate time in milliseconds from the creation of a set of unused + * dirty pages until an equivalent set of unused dirty pages is purged + * and/or reused. + */ + atomic_zd_t time_ms; + /* time / SMOOTHSTEP_NSTEPS. */ + nstime_t interval; + /* + * Time at which the current decay interval logically started. We do + * not actually advance to a new epoch until sometime after it starts + * because of scheduling and computation delays, and it is even possible + * to completely skip epochs. In all cases, during epoch advancement we + * merge all relevant activity into the most recently recorded epoch. + */ + nstime_t epoch; + /* Deadline randomness generator. */ + uint64_t jitter_state; + /* + * Deadline for current epoch. This is the sum of interval and per + * epoch jitter which is a uniform random variable in [0..interval). + * Epochs always advance by precise multiples of interval, but we + * randomize the deadline to reduce the likelihood of arenas purging in + * lockstep. + */ + nstime_t deadline; + /* + * The number of pages we cap ourselves at in the current epoch, per + * decay policies. Updated on an epoch change. After an epoch change, + * the caller should take steps to try to purge down to this amount. + */ + size_t npages_limit; + /* + * Number of unpurged pages at beginning of current epoch. During epoch + * advancement we use the delta between arena->decay_*.nunpurged and + * ecache_npages_get(&arena->ecache_*) to determine how many dirty pages, + * if any, were generated. + */ + size_t nunpurged; + /* + * Trailing log of how many unused dirty pages were generated during + * each of the past SMOOTHSTEP_NSTEPS decay epochs, where the last + * element is the most recent epoch. Corresponding epoch times are + * relative to epoch. + * + * Updated only on epoch advance, triggered by + * decay_maybe_advance_epoch, below. + */ + size_t backlog[SMOOTHSTEP_NSTEPS]; + + /* Peak number of pages in associated extents. Used for debug only. */ + uint64_t ceil_npages; +}; + +/* + * The current decay time setting. This is the only public access to a decay_t + * that's allowed without holding mtx. + */ +static inline ssize_t +decay_ms_read(const decay_t *decay) { + return atomic_load_zd(&decay->time_ms, ATOMIC_RELAXED); +} + +/* + * See the comment on the struct field -- the limit on pages we should allow in + * this decay state this epoch. + */ +static inline size_t +decay_npages_limit_get(const decay_t *decay) { + return decay->npages_limit; +} + +/* How many unused dirty pages were generated during the last epoch. */ +static inline size_t +decay_epoch_npages_delta(const decay_t *decay) { + return decay->backlog[SMOOTHSTEP_NSTEPS - 1]; +} + +/* + * Current epoch duration, in nanoseconds. Given that new epochs are started + * somewhat haphazardly, this is not necessarily exactly the time between any + * two calls to decay_maybe_advance_epoch; see the comments on fields in the + * decay_t. + */ +static inline uint64_t +decay_epoch_duration_ns(const decay_t *decay) { + return nstime_ns(&decay->interval); +} + +static inline bool +decay_immediately(const decay_t *decay) { + ssize_t decay_ms = decay_ms_read(decay); + return decay_ms == 0; +} + +static inline bool +decay_disabled(const decay_t *decay) { + ssize_t decay_ms = decay_ms_read(decay); + return decay_ms < 0; +} + +/* Returns true if decay is enabled and done gradually. */ +static inline bool +decay_gradually(const decay_t *decay) { + ssize_t decay_ms = decay_ms_read(decay); + return decay_ms > 0; +} + +/* + * Returns true if the passed in decay time setting is valid. + * < -1 : invalid + * -1 : never decay + * 0 : decay immediately + * > 0 : some positive decay time, up to a maximum allowed value of + * NSTIME_SEC_MAX * 1000, which corresponds to decaying somewhere in the early + * 27th century. By that time, we expect to have implemented alternate purging + * strategies. + */ +bool decay_ms_valid(ssize_t decay_ms); + +/* + * As a precondition, the decay_t must be zeroed out (as if with memset). + * + * Returns true on error. + */ +bool decay_init(decay_t *decay, nstime_t *cur_time, ssize_t decay_ms); + +/* + * Given an already-initialized decay_t, reinitialize it with the given decay + * time. The decay_t must have previously been initialized (and should not then + * be zeroed). + */ +void decay_reinit(decay_t *decay, nstime_t *cur_time, ssize_t decay_ms); + +/* + * Compute how many of 'npages_new' pages we would need to purge in 'time'. + */ +uint64_t decay_npages_purge_in(decay_t *decay, nstime_t *time, + size_t npages_new); + +/* Returns true if the epoch advanced and there are pages to purge. */ +bool decay_maybe_advance_epoch(decay_t *decay, nstime_t *new_time, + size_t current_npages); + +/* + * Calculates wait time until a number of pages in the interval + * [0.5 * npages_threshold .. 1.5 * npages_threshold] should be purged. + * + * Returns number of nanoseconds or DECAY_UNBOUNDED_TIME_TO_PURGE in case of + * indefinite wait. + */ +uint64_t decay_ns_until_purge(decay_t *decay, size_t npages_current, + uint64_t npages_threshold); + +#endif /* JEMALLOC_INTERNAL_DECAY_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/div.h b/deps/jemalloc/include/jemalloc/internal/div.h new file mode 100644 index 0000000..aebae93 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/div.h @@ -0,0 +1,41 @@ +#ifndef JEMALLOC_INTERNAL_DIV_H +#define JEMALLOC_INTERNAL_DIV_H + +#include "jemalloc/internal/assert.h" + +/* + * This module does the division that computes the index of a region in a slab, + * given its offset relative to the base. + * That is, given a divisor d, an n = i * d (all integers), we'll return i. + * We do some pre-computation to do this more quickly than a CPU division + * instruction. + * We bound n < 2^32, and don't support dividing by one. + */ + +typedef struct div_info_s div_info_t; +struct div_info_s { + uint32_t magic; +#ifdef JEMALLOC_DEBUG + size_t d; +#endif +}; + +void div_init(div_info_t *div_info, size_t divisor); + +static inline size_t +div_compute(div_info_t *div_info, size_t n) { + assert(n <= (uint32_t)-1); + /* + * This generates, e.g. mov; imul; shr on x86-64. On a 32-bit machine, + * the compilers I tried were all smart enough to turn this into the + * appropriate "get the high 32 bits of the result of a multiply" (e.g. + * mul; mov edx eax; on x86, umull on arm, etc.). + */ + size_t i = ((uint64_t)n * (uint64_t)div_info->magic) >> 32; +#ifdef JEMALLOC_DEBUG + assert(i * div_info->d == n); +#endif + return i; +} + +#endif /* JEMALLOC_INTERNAL_DIV_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/ecache.h b/deps/jemalloc/include/jemalloc/internal/ecache.h new file mode 100644 index 0000000..71cae3e --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ecache.h @@ -0,0 +1,55 @@ +#ifndef JEMALLOC_INTERNAL_ECACHE_H +#define JEMALLOC_INTERNAL_ECACHE_H + +#include "jemalloc/internal/eset.h" +#include "jemalloc/internal/san.h" +#include "jemalloc/internal/mutex.h" + +typedef struct ecache_s ecache_t; +struct ecache_s { + malloc_mutex_t mtx; + eset_t eset; + eset_t guarded_eset; + /* All stored extents must be in the same state. */ + extent_state_t state; + /* The index of the ehooks the ecache is associated with. */ + unsigned ind; + /* + * If true, delay coalescing until eviction; otherwise coalesce during + * deallocation. + */ + bool delay_coalesce; +}; + +static inline size_t +ecache_npages_get(ecache_t *ecache) { + return eset_npages_get(&ecache->eset) + + eset_npages_get(&ecache->guarded_eset); +} + +/* Get the number of extents in the given page size index. */ +static inline size_t +ecache_nextents_get(ecache_t *ecache, pszind_t ind) { + return eset_nextents_get(&ecache->eset, ind) + + eset_nextents_get(&ecache->guarded_eset, ind); +} + +/* Get the sum total bytes of the extents in the given page size index. */ +static inline size_t +ecache_nbytes_get(ecache_t *ecache, pszind_t ind) { + return eset_nbytes_get(&ecache->eset, ind) + + eset_nbytes_get(&ecache->guarded_eset, ind); +} + +static inline unsigned +ecache_ind_get(ecache_t *ecache) { + return ecache->ind; +} + +bool ecache_init(tsdn_t *tsdn, ecache_t *ecache, extent_state_t state, + unsigned ind, bool delay_coalesce); +void ecache_prefork(tsdn_t *tsdn, ecache_t *ecache); +void ecache_postfork_parent(tsdn_t *tsdn, ecache_t *ecache); +void ecache_postfork_child(tsdn_t *tsdn, ecache_t *ecache); + +#endif /* JEMALLOC_INTERNAL_ECACHE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/edata.h b/deps/jemalloc/include/jemalloc/internal/edata.h new file mode 100644 index 0000000..af039ea --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/edata.h @@ -0,0 +1,698 @@ +#ifndef JEMALLOC_INTERNAL_EDATA_H +#define JEMALLOC_INTERNAL_EDATA_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/bin_info.h" +#include "jemalloc/internal/bit_util.h" +#include "jemalloc/internal/hpdata.h" +#include "jemalloc/internal/nstime.h" +#include "jemalloc/internal/ph.h" +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/slab_data.h" +#include "jemalloc/internal/sz.h" +#include "jemalloc/internal/typed_list.h" + +/* + * sizeof(edata_t) is 128 bytes on 64-bit architectures. Ensure the alignment + * to free up the low bits in the rtree leaf. + */ +#define EDATA_ALIGNMENT 128 + +enum extent_state_e { + extent_state_active = 0, + extent_state_dirty = 1, + extent_state_muzzy = 2, + extent_state_retained = 3, + extent_state_transition = 4, /* States below are intermediate. */ + extent_state_merging = 5, + extent_state_max = 5 /* Sanity checking only. */ +}; +typedef enum extent_state_e extent_state_t; + +enum extent_head_state_e { + EXTENT_NOT_HEAD, + EXTENT_IS_HEAD /* See comments in ehooks_default_merge_impl(). */ +}; +typedef enum extent_head_state_e extent_head_state_t; + +/* + * Which implementation of the page allocator interface, (PAI, defined in + * pai.h) owns the given extent? + */ +enum extent_pai_e { + EXTENT_PAI_PAC = 0, + EXTENT_PAI_HPA = 1 +}; +typedef enum extent_pai_e extent_pai_t; + +struct e_prof_info_s { + /* Time when this was allocated. */ + nstime_t e_prof_alloc_time; + /* Allocation request size. */ + size_t e_prof_alloc_size; + /* Points to a prof_tctx_t. */ + atomic_p_t e_prof_tctx; + /* + * Points to a prof_recent_t for the allocation; NULL + * means the recent allocation record no longer exists. + * Protected by prof_recent_alloc_mtx. + */ + atomic_p_t e_prof_recent_alloc; +}; +typedef struct e_prof_info_s e_prof_info_t; + +/* + * The information about a particular edata that lives in an emap. Space is + * more precious there (the information, plus the edata pointer, has to live in + * a 64-bit word if we want to enable a packed representation. + * + * There are two things that are special about the information here: + * - It's quicker to access. You have one fewer pointer hop, since finding the + * edata_t associated with an item always requires accessing the rtree leaf in + * which this data is stored. + * - It can be read unsynchronized, and without worrying about lifetime issues. + */ +typedef struct edata_map_info_s edata_map_info_t; +struct edata_map_info_s { + bool slab; + szind_t szind; +}; + +typedef struct edata_cmp_summary_s edata_cmp_summary_t; +struct edata_cmp_summary_s { + uint64_t sn; + uintptr_t addr; +}; + +/* Extent (span of pages). Use accessor functions for e_* fields. */ +typedef struct edata_s edata_t; +ph_structs(edata_avail, edata_t); +ph_structs(edata_heap, edata_t); +struct edata_s { + /* + * Bitfield containing several fields: + * + * a: arena_ind + * b: slab + * c: committed + * p: pai + * z: zeroed + * g: guarded + * t: state + * i: szind + * f: nfree + * s: bin_shard + * + * 00000000 ... 0000ssss ssffffff ffffiiii iiiitttg zpcbaaaa aaaaaaaa + * + * arena_ind: Arena from which this extent came, or all 1 bits if + * unassociated. + * + * slab: The slab flag indicates whether the extent is used for a slab + * of small regions. This helps differentiate small size classes, + * and it indicates whether interior pointers can be looked up via + * iealloc(). + * + * committed: The committed flag indicates whether physical memory is + * committed to the extent, whether explicitly or implicitly + * as on a system that overcommits and satisfies physical + * memory needs on demand via soft page faults. + * + * pai: The pai flag is an extent_pai_t. + * + * zeroed: The zeroed flag is used by extent recycling code to track + * whether memory is zero-filled. + * + * guarded: The guarded flag is use by the sanitizer to track whether + * the extent has page guards around it. + * + * state: The state flag is an extent_state_t. + * + * szind: The szind flag indicates usable size class index for + * allocations residing in this extent, regardless of whether the + * extent is a slab. Extent size and usable size often differ + * even for non-slabs, either due to sz_large_pad or promotion of + * sampled small regions. + * + * nfree: Number of free regions in slab. + * + * bin_shard: the shard of the bin from which this extent came. + */ + uint64_t e_bits; +#define MASK(CURRENT_FIELD_WIDTH, CURRENT_FIELD_SHIFT) ((((((uint64_t)0x1U) << (CURRENT_FIELD_WIDTH)) - 1)) << (CURRENT_FIELD_SHIFT)) + +#define EDATA_BITS_ARENA_WIDTH MALLOCX_ARENA_BITS +#define EDATA_BITS_ARENA_SHIFT 0 +#define EDATA_BITS_ARENA_MASK MASK(EDATA_BITS_ARENA_WIDTH, EDATA_BITS_ARENA_SHIFT) + +#define EDATA_BITS_SLAB_WIDTH 1 +#define EDATA_BITS_SLAB_SHIFT (EDATA_BITS_ARENA_WIDTH + EDATA_BITS_ARENA_SHIFT) +#define EDATA_BITS_SLAB_MASK MASK(EDATA_BITS_SLAB_WIDTH, EDATA_BITS_SLAB_SHIFT) + +#define EDATA_BITS_COMMITTED_WIDTH 1 +#define EDATA_BITS_COMMITTED_SHIFT (EDATA_BITS_SLAB_WIDTH + EDATA_BITS_SLAB_SHIFT) +#define EDATA_BITS_COMMITTED_MASK MASK(EDATA_BITS_COMMITTED_WIDTH, EDATA_BITS_COMMITTED_SHIFT) + +#define EDATA_BITS_PAI_WIDTH 1 +#define EDATA_BITS_PAI_SHIFT (EDATA_BITS_COMMITTED_WIDTH + EDATA_BITS_COMMITTED_SHIFT) +#define EDATA_BITS_PAI_MASK MASK(EDATA_BITS_PAI_WIDTH, EDATA_BITS_PAI_SHIFT) + +#define EDATA_BITS_ZEROED_WIDTH 1 +#define EDATA_BITS_ZEROED_SHIFT (EDATA_BITS_PAI_WIDTH + EDATA_BITS_PAI_SHIFT) +#define EDATA_BITS_ZEROED_MASK MASK(EDATA_BITS_ZEROED_WIDTH, EDATA_BITS_ZEROED_SHIFT) + +#define EDATA_BITS_GUARDED_WIDTH 1 +#define EDATA_BITS_GUARDED_SHIFT (EDATA_BITS_ZEROED_WIDTH + EDATA_BITS_ZEROED_SHIFT) +#define EDATA_BITS_GUARDED_MASK MASK(EDATA_BITS_GUARDED_WIDTH, EDATA_BITS_GUARDED_SHIFT) + +#define EDATA_BITS_STATE_WIDTH 3 +#define EDATA_BITS_STATE_SHIFT (EDATA_BITS_GUARDED_WIDTH + EDATA_BITS_GUARDED_SHIFT) +#define EDATA_BITS_STATE_MASK MASK(EDATA_BITS_STATE_WIDTH, EDATA_BITS_STATE_SHIFT) + +#define EDATA_BITS_SZIND_WIDTH LG_CEIL(SC_NSIZES) +#define EDATA_BITS_SZIND_SHIFT (EDATA_BITS_STATE_WIDTH + EDATA_BITS_STATE_SHIFT) +#define EDATA_BITS_SZIND_MASK MASK(EDATA_BITS_SZIND_WIDTH, EDATA_BITS_SZIND_SHIFT) + +#define EDATA_BITS_NFREE_WIDTH (SC_LG_SLAB_MAXREGS + 1) +#define EDATA_BITS_NFREE_SHIFT (EDATA_BITS_SZIND_WIDTH + EDATA_BITS_SZIND_SHIFT) +#define EDATA_BITS_NFREE_MASK MASK(EDATA_BITS_NFREE_WIDTH, EDATA_BITS_NFREE_SHIFT) + +#define EDATA_BITS_BINSHARD_WIDTH 6 +#define EDATA_BITS_BINSHARD_SHIFT (EDATA_BITS_NFREE_WIDTH + EDATA_BITS_NFREE_SHIFT) +#define EDATA_BITS_BINSHARD_MASK MASK(EDATA_BITS_BINSHARD_WIDTH, EDATA_BITS_BINSHARD_SHIFT) + +#define EDATA_BITS_IS_HEAD_WIDTH 1 +#define EDATA_BITS_IS_HEAD_SHIFT (EDATA_BITS_BINSHARD_WIDTH + EDATA_BITS_BINSHARD_SHIFT) +#define EDATA_BITS_IS_HEAD_MASK MASK(EDATA_BITS_IS_HEAD_WIDTH, EDATA_BITS_IS_HEAD_SHIFT) + + /* Pointer to the extent that this structure is responsible for. */ + void *e_addr; + + union { + /* + * Extent size and serial number associated with the extent + * structure (different than the serial number for the extent at + * e_addr). + * + * ssssssss [...] ssssssss ssssnnnn nnnnnnnn + */ + size_t e_size_esn; + #define EDATA_SIZE_MASK ((size_t)~(PAGE-1)) + #define EDATA_ESN_MASK ((size_t)PAGE-1) + /* Base extent size, which may not be a multiple of PAGE. */ + size_t e_bsize; + }; + + /* + * If this edata is a user allocation from an HPA, it comes out of some + * pageslab (we don't yet support huegpage allocations that don't fit + * into pageslabs). This tracks it. + */ + hpdata_t *e_ps; + + /* + * Serial number. These are not necessarily unique; splitting an extent + * results in two extents with the same serial number. + */ + uint64_t e_sn; + + union { + /* + * List linkage used when the edata_t is active; either in + * arena's large allocations or bin_t's slabs_full. + */ + ql_elm(edata_t) ql_link_active; + /* + * Pairing heap linkage. Used whenever the extent is inactive + * (in the page allocators), or when it is active and in + * slabs_nonfull, or when the edata_t is unassociated with an + * extent and sitting in an edata_cache. + */ + union { + edata_heap_link_t heap_link; + edata_avail_link_t avail_link; + }; + }; + + union { + /* + * List linkage used when the extent is inactive: + * - Stashed dirty extents + * - Ecache LRU functionality. + */ + ql_elm(edata_t) ql_link_inactive; + /* Small region slab metadata. */ + slab_data_t e_slab_data; + + /* Profiling data, used for large objects. */ + e_prof_info_t e_prof_info; + }; +}; + +TYPED_LIST(edata_list_active, edata_t, ql_link_active) +TYPED_LIST(edata_list_inactive, edata_t, ql_link_inactive) + +static inline unsigned +edata_arena_ind_get(const edata_t *edata) { + unsigned arena_ind = (unsigned)((edata->e_bits & + EDATA_BITS_ARENA_MASK) >> EDATA_BITS_ARENA_SHIFT); + assert(arena_ind < MALLOCX_ARENA_LIMIT); + + return arena_ind; +} + +static inline szind_t +edata_szind_get_maybe_invalid(const edata_t *edata) { + szind_t szind = (szind_t)((edata->e_bits & EDATA_BITS_SZIND_MASK) >> + EDATA_BITS_SZIND_SHIFT); + assert(szind <= SC_NSIZES); + return szind; +} + +static inline szind_t +edata_szind_get(const edata_t *edata) { + szind_t szind = edata_szind_get_maybe_invalid(edata); + assert(szind < SC_NSIZES); /* Never call when "invalid". */ + return szind; +} + +static inline size_t +edata_usize_get(const edata_t *edata) { + return sz_index2size(edata_szind_get(edata)); +} + +static inline unsigned +edata_binshard_get(const edata_t *edata) { + unsigned binshard = (unsigned)((edata->e_bits & + EDATA_BITS_BINSHARD_MASK) >> EDATA_BITS_BINSHARD_SHIFT); + assert(binshard < bin_infos[edata_szind_get(edata)].n_shards); + return binshard; +} + +static inline uint64_t +edata_sn_get(const edata_t *edata) { + return edata->e_sn; +} + +static inline extent_state_t +edata_state_get(const edata_t *edata) { + return (extent_state_t)((edata->e_bits & EDATA_BITS_STATE_MASK) >> + EDATA_BITS_STATE_SHIFT); +} + +static inline bool +edata_guarded_get(const edata_t *edata) { + return (bool)((edata->e_bits & EDATA_BITS_GUARDED_MASK) >> + EDATA_BITS_GUARDED_SHIFT); +} + +static inline bool +edata_zeroed_get(const edata_t *edata) { + return (bool)((edata->e_bits & EDATA_BITS_ZEROED_MASK) >> + EDATA_BITS_ZEROED_SHIFT); +} + +static inline bool +edata_committed_get(const edata_t *edata) { + return (bool)((edata->e_bits & EDATA_BITS_COMMITTED_MASK) >> + EDATA_BITS_COMMITTED_SHIFT); +} + +static inline extent_pai_t +edata_pai_get(const edata_t *edata) { + return (extent_pai_t)((edata->e_bits & EDATA_BITS_PAI_MASK) >> + EDATA_BITS_PAI_SHIFT); +} + +static inline bool +edata_slab_get(const edata_t *edata) { + return (bool)((edata->e_bits & EDATA_BITS_SLAB_MASK) >> + EDATA_BITS_SLAB_SHIFT); +} + +static inline unsigned +edata_nfree_get(const edata_t *edata) { + assert(edata_slab_get(edata)); + return (unsigned)((edata->e_bits & EDATA_BITS_NFREE_MASK) >> + EDATA_BITS_NFREE_SHIFT); +} + +static inline void * +edata_base_get(const edata_t *edata) { + assert(edata->e_addr == PAGE_ADDR2BASE(edata->e_addr) || + !edata_slab_get(edata)); + return PAGE_ADDR2BASE(edata->e_addr); +} + +static inline void * +edata_addr_get(const edata_t *edata) { + assert(edata->e_addr == PAGE_ADDR2BASE(edata->e_addr) || + !edata_slab_get(edata)); + return edata->e_addr; +} + +static inline size_t +edata_size_get(const edata_t *edata) { + return (edata->e_size_esn & EDATA_SIZE_MASK); +} + +static inline size_t +edata_esn_get(const edata_t *edata) { + return (edata->e_size_esn & EDATA_ESN_MASK); +} + +static inline size_t +edata_bsize_get(const edata_t *edata) { + return edata->e_bsize; +} + +static inline hpdata_t * +edata_ps_get(const edata_t *edata) { + assert(edata_pai_get(edata) == EXTENT_PAI_HPA); + return edata->e_ps; +} + +static inline void * +edata_before_get(const edata_t *edata) { + return (void *)((uintptr_t)edata_base_get(edata) - PAGE); +} + +static inline void * +edata_last_get(const edata_t *edata) { + return (void *)((uintptr_t)edata_base_get(edata) + + edata_size_get(edata) - PAGE); +} + +static inline void * +edata_past_get(const edata_t *edata) { + return (void *)((uintptr_t)edata_base_get(edata) + + edata_size_get(edata)); +} + +static inline slab_data_t * +edata_slab_data_get(edata_t *edata) { + assert(edata_slab_get(edata)); + return &edata->e_slab_data; +} + +static inline const slab_data_t * +edata_slab_data_get_const(const edata_t *edata) { + assert(edata_slab_get(edata)); + return &edata->e_slab_data; +} + +static inline prof_tctx_t * +edata_prof_tctx_get(const edata_t *edata) { + return (prof_tctx_t *)atomic_load_p(&edata->e_prof_info.e_prof_tctx, + ATOMIC_ACQUIRE); +} + +static inline const nstime_t * +edata_prof_alloc_time_get(const edata_t *edata) { + return &edata->e_prof_info.e_prof_alloc_time; +} + +static inline size_t +edata_prof_alloc_size_get(const edata_t *edata) { + return edata->e_prof_info.e_prof_alloc_size; +} + +static inline prof_recent_t * +edata_prof_recent_alloc_get_dont_call_directly(const edata_t *edata) { + return (prof_recent_t *)atomic_load_p( + &edata->e_prof_info.e_prof_recent_alloc, ATOMIC_RELAXED); +} + +static inline void +edata_arena_ind_set(edata_t *edata, unsigned arena_ind) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_ARENA_MASK) | + ((uint64_t)arena_ind << EDATA_BITS_ARENA_SHIFT); +} + +static inline void +edata_binshard_set(edata_t *edata, unsigned binshard) { + /* The assertion assumes szind is set already. */ + assert(binshard < bin_infos[edata_szind_get(edata)].n_shards); + edata->e_bits = (edata->e_bits & ~EDATA_BITS_BINSHARD_MASK) | + ((uint64_t)binshard << EDATA_BITS_BINSHARD_SHIFT); +} + +static inline void +edata_addr_set(edata_t *edata, void *addr) { + edata->e_addr = addr; +} + +static inline void +edata_size_set(edata_t *edata, size_t size) { + assert((size & ~EDATA_SIZE_MASK) == 0); + edata->e_size_esn = size | (edata->e_size_esn & ~EDATA_SIZE_MASK); +} + +static inline void +edata_esn_set(edata_t *edata, size_t esn) { + edata->e_size_esn = (edata->e_size_esn & ~EDATA_ESN_MASK) | (esn & + EDATA_ESN_MASK); +} + +static inline void +edata_bsize_set(edata_t *edata, size_t bsize) { + edata->e_bsize = bsize; +} + +static inline void +edata_ps_set(edata_t *edata, hpdata_t *ps) { + assert(edata_pai_get(edata) == EXTENT_PAI_HPA); + edata->e_ps = ps; +} + +static inline void +edata_szind_set(edata_t *edata, szind_t szind) { + assert(szind <= SC_NSIZES); /* SC_NSIZES means "invalid". */ + edata->e_bits = (edata->e_bits & ~EDATA_BITS_SZIND_MASK) | + ((uint64_t)szind << EDATA_BITS_SZIND_SHIFT); +} + +static inline void +edata_nfree_set(edata_t *edata, unsigned nfree) { + assert(edata_slab_get(edata)); + edata->e_bits = (edata->e_bits & ~EDATA_BITS_NFREE_MASK) | + ((uint64_t)nfree << EDATA_BITS_NFREE_SHIFT); +} + +static inline void +edata_nfree_binshard_set(edata_t *edata, unsigned nfree, unsigned binshard) { + /* The assertion assumes szind is set already. */ + assert(binshard < bin_infos[edata_szind_get(edata)].n_shards); + edata->e_bits = (edata->e_bits & + (~EDATA_BITS_NFREE_MASK & ~EDATA_BITS_BINSHARD_MASK)) | + ((uint64_t)binshard << EDATA_BITS_BINSHARD_SHIFT) | + ((uint64_t)nfree << EDATA_BITS_NFREE_SHIFT); +} + +static inline void +edata_nfree_inc(edata_t *edata) { + assert(edata_slab_get(edata)); + edata->e_bits += ((uint64_t)1U << EDATA_BITS_NFREE_SHIFT); +} + +static inline void +edata_nfree_dec(edata_t *edata) { + assert(edata_slab_get(edata)); + edata->e_bits -= ((uint64_t)1U << EDATA_BITS_NFREE_SHIFT); +} + +static inline void +edata_nfree_sub(edata_t *edata, uint64_t n) { + assert(edata_slab_get(edata)); + edata->e_bits -= (n << EDATA_BITS_NFREE_SHIFT); +} + +static inline void +edata_sn_set(edata_t *edata, uint64_t sn) { + edata->e_sn = sn; +} + +static inline void +edata_state_set(edata_t *edata, extent_state_t state) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_STATE_MASK) | + ((uint64_t)state << EDATA_BITS_STATE_SHIFT); +} + +static inline void +edata_guarded_set(edata_t *edata, bool guarded) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_GUARDED_MASK) | + ((uint64_t)guarded << EDATA_BITS_GUARDED_SHIFT); +} + +static inline void +edata_zeroed_set(edata_t *edata, bool zeroed) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_ZEROED_MASK) | + ((uint64_t)zeroed << EDATA_BITS_ZEROED_SHIFT); +} + +static inline void +edata_committed_set(edata_t *edata, bool committed) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_COMMITTED_MASK) | + ((uint64_t)committed << EDATA_BITS_COMMITTED_SHIFT); +} + +static inline void +edata_pai_set(edata_t *edata, extent_pai_t pai) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_PAI_MASK) | + ((uint64_t)pai << EDATA_BITS_PAI_SHIFT); +} + +static inline void +edata_slab_set(edata_t *edata, bool slab) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_SLAB_MASK) | + ((uint64_t)slab << EDATA_BITS_SLAB_SHIFT); +} + +static inline void +edata_prof_tctx_set(edata_t *edata, prof_tctx_t *tctx) { + atomic_store_p(&edata->e_prof_info.e_prof_tctx, tctx, ATOMIC_RELEASE); +} + +static inline void +edata_prof_alloc_time_set(edata_t *edata, nstime_t *t) { + nstime_copy(&edata->e_prof_info.e_prof_alloc_time, t); +} + +static inline void +edata_prof_alloc_size_set(edata_t *edata, size_t size) { + edata->e_prof_info.e_prof_alloc_size = size; +} + +static inline void +edata_prof_recent_alloc_set_dont_call_directly(edata_t *edata, + prof_recent_t *recent_alloc) { + atomic_store_p(&edata->e_prof_info.e_prof_recent_alloc, recent_alloc, + ATOMIC_RELAXED); +} + +static inline bool +edata_is_head_get(edata_t *edata) { + return (bool)((edata->e_bits & EDATA_BITS_IS_HEAD_MASK) >> + EDATA_BITS_IS_HEAD_SHIFT); +} + +static inline void +edata_is_head_set(edata_t *edata, bool is_head) { + edata->e_bits = (edata->e_bits & ~EDATA_BITS_IS_HEAD_MASK) | + ((uint64_t)is_head << EDATA_BITS_IS_HEAD_SHIFT); +} + +static inline bool +edata_state_in_transition(extent_state_t state) { + return state >= extent_state_transition; +} + +/* + * Because this function is implemented as a sequence of bitfield modifications, + * even though each individual bit is properly initialized, we technically read + * uninitialized data within it. This is mostly fine, since most callers get + * their edatas from zeroing sources, but callers who make stack edata_ts need + * to manually zero them. + */ +static inline void +edata_init(edata_t *edata, unsigned arena_ind, void *addr, size_t size, + bool slab, szind_t szind, uint64_t sn, extent_state_t state, bool zeroed, + bool committed, extent_pai_t pai, extent_head_state_t is_head) { + assert(addr == PAGE_ADDR2BASE(addr) || !slab); + + edata_arena_ind_set(edata, arena_ind); + edata_addr_set(edata, addr); + edata_size_set(edata, size); + edata_slab_set(edata, slab); + edata_szind_set(edata, szind); + edata_sn_set(edata, sn); + edata_state_set(edata, state); + edata_guarded_set(edata, false); + edata_zeroed_set(edata, zeroed); + edata_committed_set(edata, committed); + edata_pai_set(edata, pai); + edata_is_head_set(edata, is_head == EXTENT_IS_HEAD); + if (config_prof) { + edata_prof_tctx_set(edata, NULL); + } +} + +static inline void +edata_binit(edata_t *edata, void *addr, size_t bsize, uint64_t sn) { + edata_arena_ind_set(edata, (1U << MALLOCX_ARENA_BITS) - 1); + edata_addr_set(edata, addr); + edata_bsize_set(edata, bsize); + edata_slab_set(edata, false); + edata_szind_set(edata, SC_NSIZES); + edata_sn_set(edata, sn); + edata_state_set(edata, extent_state_active); + edata_guarded_set(edata, false); + edata_zeroed_set(edata, true); + edata_committed_set(edata, true); + /* + * This isn't strictly true, but base allocated extents never get + * deallocated and can't be looked up in the emap, but no sense in + * wasting a state bit to encode this fact. + */ + edata_pai_set(edata, EXTENT_PAI_PAC); +} + +static inline int +edata_esn_comp(const edata_t *a, const edata_t *b) { + size_t a_esn = edata_esn_get(a); + size_t b_esn = edata_esn_get(b); + + return (a_esn > b_esn) - (a_esn < b_esn); +} + +static inline int +edata_ead_comp(const edata_t *a, const edata_t *b) { + uintptr_t a_eaddr = (uintptr_t)a; + uintptr_t b_eaddr = (uintptr_t)b; + + return (a_eaddr > b_eaddr) - (a_eaddr < b_eaddr); +} + +static inline edata_cmp_summary_t +edata_cmp_summary_get(const edata_t *edata) { + return (edata_cmp_summary_t){edata_sn_get(edata), + (uintptr_t)edata_addr_get(edata)}; +} + +static inline int +edata_cmp_summary_comp(edata_cmp_summary_t a, edata_cmp_summary_t b) { + int ret; + ret = (a.sn > b.sn) - (a.sn < b.sn); + if (ret != 0) { + return ret; + } + ret = (a.addr > b.addr) - (a.addr < b.addr); + return ret; +} + +static inline int +edata_snad_comp(const edata_t *a, const edata_t *b) { + edata_cmp_summary_t a_cmp = edata_cmp_summary_get(a); + edata_cmp_summary_t b_cmp = edata_cmp_summary_get(b); + + return edata_cmp_summary_comp(a_cmp, b_cmp); +} + +static inline int +edata_esnead_comp(const edata_t *a, const edata_t *b) { + int ret; + + ret = edata_esn_comp(a, b); + if (ret != 0) { + return ret; + } + + ret = edata_ead_comp(a, b); + return ret; +} + +ph_proto(, edata_avail, edata_t) +ph_proto(, edata_heap, edata_t) + +#endif /* JEMALLOC_INTERNAL_EDATA_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/edata_cache.h b/deps/jemalloc/include/jemalloc/internal/edata_cache.h new file mode 100644 index 0000000..8b6c0ef --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/edata_cache.h @@ -0,0 +1,49 @@ +#ifndef JEMALLOC_INTERNAL_EDATA_CACHE_H +#define JEMALLOC_INTERNAL_EDATA_CACHE_H + +#include "jemalloc/internal/base.h" + +/* For tests only. */ +#define EDATA_CACHE_FAST_FILL 4 + +/* + * A cache of edata_t structures allocated via base_alloc_edata (as opposed to + * the underlying extents they describe). The contents of returned edata_t + * objects are garbage and cannot be relied upon. + */ + +typedef struct edata_cache_s edata_cache_t; +struct edata_cache_s { + edata_avail_t avail; + atomic_zu_t count; + malloc_mutex_t mtx; + base_t *base; +}; + +bool edata_cache_init(edata_cache_t *edata_cache, base_t *base); +edata_t *edata_cache_get(tsdn_t *tsdn, edata_cache_t *edata_cache); +void edata_cache_put(tsdn_t *tsdn, edata_cache_t *edata_cache, edata_t *edata); + +void edata_cache_prefork(tsdn_t *tsdn, edata_cache_t *edata_cache); +void edata_cache_postfork_parent(tsdn_t *tsdn, edata_cache_t *edata_cache); +void edata_cache_postfork_child(tsdn_t *tsdn, edata_cache_t *edata_cache); + +/* + * An edata_cache_small is like an edata_cache, but it relies on external + * synchronization and avoids first-fit strategies. + */ + +typedef struct edata_cache_fast_s edata_cache_fast_t; +struct edata_cache_fast_s { + edata_list_inactive_t list; + edata_cache_t *fallback; + bool disabled; +}; + +void edata_cache_fast_init(edata_cache_fast_t *ecs, edata_cache_t *fallback); +edata_t *edata_cache_fast_get(tsdn_t *tsdn, edata_cache_fast_t *ecs); +void edata_cache_fast_put(tsdn_t *tsdn, edata_cache_fast_t *ecs, + edata_t *edata); +void edata_cache_fast_disable(tsdn_t *tsdn, edata_cache_fast_t *ecs); + +#endif /* JEMALLOC_INTERNAL_EDATA_CACHE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/ehooks.h b/deps/jemalloc/include/jemalloc/internal/ehooks.h new file mode 100644 index 0000000..8d9513e --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ehooks.h @@ -0,0 +1,412 @@ +#ifndef JEMALLOC_INTERNAL_EHOOKS_H +#define JEMALLOC_INTERNAL_EHOOKS_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/extent_mmap.h" + +/* + * This module is the internal interface to the extent hooks (both + * user-specified and external). Eventually, this will give us the flexibility + * to use multiple different versions of user-visible extent-hook APIs under a + * single user interface. + * + * Current API expansions (not available to anyone but the default hooks yet): + * - Head state tracking. Hooks can decide whether or not to merge two + * extents based on whether or not one of them is the head (i.e. was + * allocated on its own). The later extent loses its "head" status. + */ + +extern const extent_hooks_t ehooks_default_extent_hooks; + +typedef struct ehooks_s ehooks_t; +struct ehooks_s { + /* + * The user-visible id that goes with the ehooks (i.e. that of the base + * they're a part of, the associated arena's index within the arenas + * array). + */ + unsigned ind; + /* Logically an extent_hooks_t *. */ + atomic_p_t ptr; +}; + +extern const extent_hooks_t ehooks_default_extent_hooks; + +/* + * These are not really part of the public API. Each hook has a fast-path for + * the default-hooks case that can avoid various small inefficiencies: + * - Forgetting tsd and then calling tsd_get within the hook. + * - Getting more state than necessary out of the extent_t. + * - Doing arena_ind -> arena -> arena_ind lookups. + * By making the calls to these functions visible to the compiler, it can move + * those extra bits of computation down below the fast-paths where they get ignored. + */ +void *ehooks_default_alloc_impl(tsdn_t *tsdn, void *new_addr, size_t size, + size_t alignment, bool *zero, bool *commit, unsigned arena_ind); +bool ehooks_default_dalloc_impl(void *addr, size_t size); +void ehooks_default_destroy_impl(void *addr, size_t size); +bool ehooks_default_commit_impl(void *addr, size_t offset, size_t length); +bool ehooks_default_decommit_impl(void *addr, size_t offset, size_t length); +#ifdef PAGES_CAN_PURGE_LAZY +bool ehooks_default_purge_lazy_impl(void *addr, size_t offset, size_t length); +#endif +#ifdef PAGES_CAN_PURGE_FORCED +bool ehooks_default_purge_forced_impl(void *addr, size_t offset, size_t length); +#endif +bool ehooks_default_split_impl(); +/* + * Merge is the only default extent hook we declare -- see the comment in + * ehooks_merge. + */ +bool ehooks_default_merge(extent_hooks_t *extent_hooks, void *addr_a, + size_t size_a, void *addr_b, size_t size_b, bool committed, + unsigned arena_ind); +bool ehooks_default_merge_impl(tsdn_t *tsdn, void *addr_a, void *addr_b); +void ehooks_default_zero_impl(void *addr, size_t size); +void ehooks_default_guard_impl(void *guard1, void *guard2); +void ehooks_default_unguard_impl(void *guard1, void *guard2); + +/* + * We don't officially support reentrancy from wtihin the extent hooks. But + * various people who sit within throwing distance of the jemalloc team want + * that functionality in certain limited cases. The default reentrancy guards + * assert that we're not reentrant from a0 (since it's the bootstrap arena, + * where reentrant allocations would be redirected), which we would incorrectly + * trigger in cases where a0 has extent hooks (those hooks themselves can't be + * reentrant, then, but there are reasonable uses for such functionality, like + * putting internal metadata on hugepages). Therefore, we use the raw + * reentrancy guards. + * + * Eventually, we need to think more carefully about whether and where we + * support allocating from within extent hooks (and what that means for things + * like profiling, stats collection, etc.), and document what the guarantee is. + */ +static inline void +ehooks_pre_reentrancy(tsdn_t *tsdn) { + tsd_t *tsd = tsdn_null(tsdn) ? tsd_fetch() : tsdn_tsd(tsdn); + tsd_pre_reentrancy_raw(tsd); +} + +static inline void +ehooks_post_reentrancy(tsdn_t *tsdn) { + tsd_t *tsd = tsdn_null(tsdn) ? tsd_fetch() : tsdn_tsd(tsdn); + tsd_post_reentrancy_raw(tsd); +} + +/* Beginning of the public API. */ +void ehooks_init(ehooks_t *ehooks, extent_hooks_t *extent_hooks, unsigned ind); + +static inline unsigned +ehooks_ind_get(const ehooks_t *ehooks) { + return ehooks->ind; +} + +static inline void +ehooks_set_extent_hooks_ptr(ehooks_t *ehooks, extent_hooks_t *extent_hooks) { + atomic_store_p(&ehooks->ptr, extent_hooks, ATOMIC_RELEASE); +} + +static inline extent_hooks_t * +ehooks_get_extent_hooks_ptr(ehooks_t *ehooks) { + return (extent_hooks_t *)atomic_load_p(&ehooks->ptr, ATOMIC_ACQUIRE); +} + +static inline bool +ehooks_are_default(ehooks_t *ehooks) { + return ehooks_get_extent_hooks_ptr(ehooks) == + &ehooks_default_extent_hooks; +} + +/* + * In some cases, a caller needs to allocate resources before attempting to call + * a hook. If that hook is doomed to fail, this is wasteful. We therefore + * include some checks for such cases. + */ +static inline bool +ehooks_dalloc_will_fail(ehooks_t *ehooks) { + if (ehooks_are_default(ehooks)) { + return opt_retain; + } else { + return ehooks_get_extent_hooks_ptr(ehooks)->dalloc == NULL; + } +} + +static inline bool +ehooks_split_will_fail(ehooks_t *ehooks) { + return ehooks_get_extent_hooks_ptr(ehooks)->split == NULL; +} + +static inline bool +ehooks_merge_will_fail(ehooks_t *ehooks) { + return ehooks_get_extent_hooks_ptr(ehooks)->merge == NULL; +} + +static inline bool +ehooks_guard_will_fail(ehooks_t *ehooks) { + /* + * Before the guard hooks are officially introduced, limit the use to + * the default hooks only. + */ + return !ehooks_are_default(ehooks); +} + +/* + * Some hooks are required to return zeroed memory in certain situations. In + * debug mode, we do some heuristic checks that they did what they were supposed + * to. + * + * This isn't really ehooks-specific (i.e. anyone can check for zeroed memory). + * But incorrect zero information indicates an ehook bug. + */ +static inline void +ehooks_debug_zero_check(void *addr, size_t size) { + assert(((uintptr_t)addr & PAGE_MASK) == 0); + assert((size & PAGE_MASK) == 0); + assert(size > 0); + if (config_debug) { + /* Check the whole first page. */ + size_t *p = (size_t *)addr; + for (size_t i = 0; i < PAGE / sizeof(size_t); i++) { + assert(p[i] == 0); + } + /* + * And 4 spots within. There's a tradeoff here; the larger + * this number, the more likely it is that we'll catch a bug + * where ehooks return a sparsely non-zero range. But + * increasing the number of checks also increases the number of + * page faults in debug mode. FreeBSD does much of their + * day-to-day development work in debug mode, so we don't want + * even the debug builds to be too slow. + */ + const size_t nchecks = 4; + assert(PAGE >= sizeof(size_t) * nchecks); + for (size_t i = 0; i < nchecks; ++i) { + assert(p[i * (size / sizeof(size_t) / nchecks)] == 0); + } + } +} + + +static inline void * +ehooks_alloc(tsdn_t *tsdn, ehooks_t *ehooks, void *new_addr, size_t size, + size_t alignment, bool *zero, bool *commit) { + bool orig_zero = *zero; + void *ret; + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (extent_hooks == &ehooks_default_extent_hooks) { + ret = ehooks_default_alloc_impl(tsdn, new_addr, size, + alignment, zero, commit, ehooks_ind_get(ehooks)); + } else { + ehooks_pre_reentrancy(tsdn); + ret = extent_hooks->alloc(extent_hooks, new_addr, size, + alignment, zero, commit, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + } + assert(new_addr == NULL || ret == NULL || new_addr == ret); + assert(!orig_zero || *zero); + if (*zero && ret != NULL) { + ehooks_debug_zero_check(ret, size); + } + return ret; +} + +static inline bool +ehooks_dalloc(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + bool committed) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (extent_hooks == &ehooks_default_extent_hooks) { + return ehooks_default_dalloc_impl(addr, size); + } else if (extent_hooks->dalloc == NULL) { + return true; + } else { + ehooks_pre_reentrancy(tsdn); + bool err = extent_hooks->dalloc(extent_hooks, addr, size, + committed, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + return err; + } +} + +static inline void +ehooks_destroy(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + bool committed) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (extent_hooks == &ehooks_default_extent_hooks) { + ehooks_default_destroy_impl(addr, size); + } else if (extent_hooks->destroy == NULL) { + /* Do nothing. */ + } else { + ehooks_pre_reentrancy(tsdn); + extent_hooks->destroy(extent_hooks, addr, size, committed, + ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + } +} + +static inline bool +ehooks_commit(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + size_t offset, size_t length) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + bool err; + if (extent_hooks == &ehooks_default_extent_hooks) { + err = ehooks_default_commit_impl(addr, offset, length); + } else if (extent_hooks->commit == NULL) { + err = true; + } else { + ehooks_pre_reentrancy(tsdn); + err = extent_hooks->commit(extent_hooks, addr, size, + offset, length, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + } + if (!err) { + ehooks_debug_zero_check(addr, size); + } + return err; +} + +static inline bool +ehooks_decommit(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + size_t offset, size_t length) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (extent_hooks == &ehooks_default_extent_hooks) { + return ehooks_default_decommit_impl(addr, offset, length); + } else if (extent_hooks->decommit == NULL) { + return true; + } else { + ehooks_pre_reentrancy(tsdn); + bool err = extent_hooks->decommit(extent_hooks, addr, size, + offset, length, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + return err; + } +} + +static inline bool +ehooks_purge_lazy(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + size_t offset, size_t length) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); +#ifdef PAGES_CAN_PURGE_LAZY + if (extent_hooks == &ehooks_default_extent_hooks) { + return ehooks_default_purge_lazy_impl(addr, offset, length); + } +#endif + if (extent_hooks->purge_lazy == NULL) { + return true; + } else { + ehooks_pre_reentrancy(tsdn); + bool err = extent_hooks->purge_lazy(extent_hooks, addr, size, + offset, length, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + return err; + } +} + +static inline bool +ehooks_purge_forced(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + size_t offset, size_t length) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + /* + * It would be correct to have a ehooks_debug_zero_check call at the end + * of this function; purge_forced is required to zero. But checking + * would touch the page in question, which may have performance + * consequences (imagine the hooks are using hugepages, with a global + * zero page off). Even in debug mode, it's usually a good idea to + * avoid cases that can dramatically increase memory consumption. + */ +#ifdef PAGES_CAN_PURGE_FORCED + if (extent_hooks == &ehooks_default_extent_hooks) { + return ehooks_default_purge_forced_impl(addr, offset, length); + } +#endif + if (extent_hooks->purge_forced == NULL) { + return true; + } else { + ehooks_pre_reentrancy(tsdn); + bool err = extent_hooks->purge_forced(extent_hooks, addr, size, + offset, length, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + return err; + } +} + +static inline bool +ehooks_split(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size, + size_t size_a, size_t size_b, bool committed) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (ehooks_are_default(ehooks)) { + return ehooks_default_split_impl(); + } else if (extent_hooks->split == NULL) { + return true; + } else { + ehooks_pre_reentrancy(tsdn); + bool err = extent_hooks->split(extent_hooks, addr, size, size_a, + size_b, committed, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + return err; + } +} + +static inline bool +ehooks_merge(tsdn_t *tsdn, ehooks_t *ehooks, void *addr_a, size_t size_a, + void *addr_b, size_t size_b, bool committed) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (extent_hooks == &ehooks_default_extent_hooks) { + return ehooks_default_merge_impl(tsdn, addr_a, addr_b); + } else if (extent_hooks->merge == NULL) { + return true; + } else { + ehooks_pre_reentrancy(tsdn); + bool err = extent_hooks->merge(extent_hooks, addr_a, size_a, + addr_b, size_b, committed, ehooks_ind_get(ehooks)); + ehooks_post_reentrancy(tsdn); + return err; + } +} + +static inline void +ehooks_zero(tsdn_t *tsdn, ehooks_t *ehooks, void *addr, size_t size) { + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + if (extent_hooks == &ehooks_default_extent_hooks) { + ehooks_default_zero_impl(addr, size); + } else { + /* + * It would be correct to try using the user-provided purge + * hooks (since they are required to have zeroed the extent if + * they indicate success), but we don't necessarily know their + * cost. We'll be conservative and use memset. + */ + memset(addr, 0, size); + } +} + +static inline bool +ehooks_guard(tsdn_t *tsdn, ehooks_t *ehooks, void *guard1, void *guard2) { + bool err; + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + + if (extent_hooks == &ehooks_default_extent_hooks) { + ehooks_default_guard_impl(guard1, guard2); + err = false; + } else { + err = true; + } + + return err; +} + +static inline bool +ehooks_unguard(tsdn_t *tsdn, ehooks_t *ehooks, void *guard1, void *guard2) { + bool err; + extent_hooks_t *extent_hooks = ehooks_get_extent_hooks_ptr(ehooks); + + if (extent_hooks == &ehooks_default_extent_hooks) { + ehooks_default_unguard_impl(guard1, guard2); + err = false; + } else { + err = true; + } + + return err; +} + +#endif /* JEMALLOC_INTERNAL_EHOOKS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/emap.h b/deps/jemalloc/include/jemalloc/internal/emap.h new file mode 100644 index 0000000..847af32 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/emap.h @@ -0,0 +1,357 @@ +#ifndef JEMALLOC_INTERNAL_EMAP_H +#define JEMALLOC_INTERNAL_EMAP_H + +#include "jemalloc/internal/base.h" +#include "jemalloc/internal/rtree.h" + +/* + * Note: Ends without at semicolon, so that + * EMAP_DECLARE_RTREE_CTX; + * in uses will avoid empty-statement warnings. + */ +#define EMAP_DECLARE_RTREE_CTX \ + rtree_ctx_t rtree_ctx_fallback; \ + rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback) + +typedef struct emap_s emap_t; +struct emap_s { + rtree_t rtree; +}; + +/* Used to pass rtree lookup context down the path. */ +typedef struct emap_alloc_ctx_t emap_alloc_ctx_t; +struct emap_alloc_ctx_t { + szind_t szind; + bool slab; +}; + +typedef struct emap_full_alloc_ctx_s emap_full_alloc_ctx_t; +struct emap_full_alloc_ctx_s { + szind_t szind; + bool slab; + edata_t *edata; +}; + +bool emap_init(emap_t *emap, base_t *base, bool zeroed); + +void emap_remap(tsdn_t *tsdn, emap_t *emap, edata_t *edata, szind_t szind, + bool slab); + +void emap_update_edata_state(tsdn_t *tsdn, emap_t *emap, edata_t *edata, + extent_state_t state); + +/* + * The two acquire functions below allow accessing neighbor edatas, if it's safe + * and valid to do so (i.e. from the same arena, of the same state, etc.). This + * is necessary because the ecache locks are state based, and only protect + * edatas with the same state. Therefore the neighbor edata's state needs to be + * verified first, before chasing the edata pointer. The returned edata will be + * in an acquired state, meaning other threads will be prevented from accessing + * it, even if technically the edata can still be discovered from the rtree. + * + * This means, at any moment when holding pointers to edata, either one of the + * state based locks is held (and the edatas are all of the protected state), or + * the edatas are in an acquired state (e.g. in active or merging state). The + * acquire operation itself (changing the edata to an acquired state) is done + * under the state locks. + */ +edata_t *emap_try_acquire_edata_neighbor(tsdn_t *tsdn, emap_t *emap, + edata_t *edata, extent_pai_t pai, extent_state_t expected_state, + bool forward); +edata_t *emap_try_acquire_edata_neighbor_expand(tsdn_t *tsdn, emap_t *emap, + edata_t *edata, extent_pai_t pai, extent_state_t expected_state); +void emap_release_edata(tsdn_t *tsdn, emap_t *emap, edata_t *edata, + extent_state_t new_state); + +/* + * Associate the given edata with its beginning and end address, setting the + * szind and slab info appropriately. + * Returns true on error (i.e. resource exhaustion). + */ +bool emap_register_boundary(tsdn_t *tsdn, emap_t *emap, edata_t *edata, + szind_t szind, bool slab); + +/* + * Does the same thing, but with the interior of the range, for slab + * allocations. + * + * You might wonder why we don't just have a single emap_register function that + * does both depending on the value of 'slab'. The answer is twofold: + * - As a practical matter, in places like the extract->split->commit pathway, + * we defer the interior operation until we're sure that the commit won't fail + * (but we have to register the split boundaries there). + * - In general, we're trying to move to a world where the page-specific + * allocator doesn't know as much about how the pages it allocates will be + * used, and passing a 'slab' parameter everywhere makes that more + * complicated. + * + * Unlike the boundary version, this function can't fail; this is because slabs + * can't get big enough to touch a new page that neither of the boundaries + * touched, so no allocation is necessary to fill the interior once the boundary + * has been touched. + */ +void emap_register_interior(tsdn_t *tsdn, emap_t *emap, edata_t *edata, + szind_t szind); + +void emap_deregister_boundary(tsdn_t *tsdn, emap_t *emap, edata_t *edata); +void emap_deregister_interior(tsdn_t *tsdn, emap_t *emap, edata_t *edata); + +typedef struct emap_prepare_s emap_prepare_t; +struct emap_prepare_s { + rtree_leaf_elm_t *lead_elm_a; + rtree_leaf_elm_t *lead_elm_b; + rtree_leaf_elm_t *trail_elm_a; + rtree_leaf_elm_t *trail_elm_b; +}; + +/** + * These functions the emap metadata management for merging, splitting, and + * reusing extents. In particular, they set the boundary mappings from + * addresses to edatas. If the result is going to be used as a slab, you + * still need to call emap_register_interior on it, though. + * + * Remap simply changes the szind and slab status of an extent's boundary + * mappings. If the extent is not a slab, it doesn't bother with updating the + * end mapping (since lookups only occur in the interior of an extent for + * slabs). Since the szind and slab status only make sense for active extents, + * this should only be called while activating or deactivating an extent. + * + * Split and merge have a "prepare" and a "commit" portion. The prepare portion + * does the operations that can be done without exclusive access to the extent + * in question, while the commit variant requires exclusive access to maintain + * the emap invariants. The only function that can fail is emap_split_prepare, + * and it returns true on failure (at which point the caller shouldn't commit). + * + * In all cases, "lead" refers to the lower-addressed extent, and trail to the + * higher-addressed one. It's the caller's responsibility to set the edata + * state appropriately. + */ +bool emap_split_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare, + edata_t *edata, size_t size_a, edata_t *trail, size_t size_b); +void emap_split_commit(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare, + edata_t *lead, size_t size_a, edata_t *trail, size_t size_b); +void emap_merge_prepare(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare, + edata_t *lead, edata_t *trail); +void emap_merge_commit(tsdn_t *tsdn, emap_t *emap, emap_prepare_t *prepare, + edata_t *lead, edata_t *trail); + +/* Assert that the emap's view of the given edata matches the edata's view. */ +void emap_do_assert_mapped(tsdn_t *tsdn, emap_t *emap, edata_t *edata); +static inline void +emap_assert_mapped(tsdn_t *tsdn, emap_t *emap, edata_t *edata) { + if (config_debug) { + emap_do_assert_mapped(tsdn, emap, edata); + } +} + +/* Assert that the given edata isn't in the map. */ +void emap_do_assert_not_mapped(tsdn_t *tsdn, emap_t *emap, edata_t *edata); +static inline void +emap_assert_not_mapped(tsdn_t *tsdn, emap_t *emap, edata_t *edata) { + if (config_debug) { + emap_do_assert_not_mapped(tsdn, emap, edata); + } +} + +JEMALLOC_ALWAYS_INLINE bool +emap_edata_in_transition(tsdn_t *tsdn, emap_t *emap, edata_t *edata) { + assert(config_debug); + emap_assert_mapped(tsdn, emap, edata); + + EMAP_DECLARE_RTREE_CTX; + rtree_contents_t contents = rtree_read(tsdn, &emap->rtree, rtree_ctx, + (uintptr_t)edata_base_get(edata)); + + return edata_state_in_transition(contents.metadata.state); +} + +JEMALLOC_ALWAYS_INLINE bool +emap_edata_is_acquired(tsdn_t *tsdn, emap_t *emap, edata_t *edata) { + if (!config_debug) { + /* For assertions only. */ + return false; + } + + /* + * The edata is considered acquired if no other threads will attempt to + * read / write any fields from it. This includes a few cases: + * + * 1) edata not hooked into emap yet -- This implies the edata just got + * allocated or initialized. + * + * 2) in an active or transition state -- In both cases, the edata can + * be discovered from the emap, however the state tracked in the rtree + * will prevent other threads from accessing the actual edata. + */ + EMAP_DECLARE_RTREE_CTX; + rtree_leaf_elm_t *elm = rtree_leaf_elm_lookup(tsdn, &emap->rtree, + rtree_ctx, (uintptr_t)edata_base_get(edata), /* dependent */ true, + /* init_missing */ false); + if (elm == NULL) { + return true; + } + rtree_contents_t contents = rtree_leaf_elm_read(tsdn, &emap->rtree, elm, + /* dependent */ true); + if (contents.edata == NULL || + contents.metadata.state == extent_state_active || + edata_state_in_transition(contents.metadata.state)) { + return true; + } + + return false; +} + +JEMALLOC_ALWAYS_INLINE void +extent_assert_can_coalesce(const edata_t *inner, const edata_t *outer) { + assert(edata_arena_ind_get(inner) == edata_arena_ind_get(outer)); + assert(edata_pai_get(inner) == edata_pai_get(outer)); + assert(edata_committed_get(inner) == edata_committed_get(outer)); + assert(edata_state_get(inner) == extent_state_active); + assert(edata_state_get(outer) == extent_state_merging); + assert(!edata_guarded_get(inner) && !edata_guarded_get(outer)); + assert(edata_base_get(inner) == edata_past_get(outer) || + edata_base_get(outer) == edata_past_get(inner)); +} + +JEMALLOC_ALWAYS_INLINE void +extent_assert_can_expand(const edata_t *original, const edata_t *expand) { + assert(edata_arena_ind_get(original) == edata_arena_ind_get(expand)); + assert(edata_pai_get(original) == edata_pai_get(expand)); + assert(edata_state_get(original) == extent_state_active); + assert(edata_state_get(expand) == extent_state_merging); + assert(edata_past_get(original) == edata_base_get(expand)); +} + +JEMALLOC_ALWAYS_INLINE edata_t * +emap_edata_lookup(tsdn_t *tsdn, emap_t *emap, const void *ptr) { + EMAP_DECLARE_RTREE_CTX; + + return rtree_read(tsdn, &emap->rtree, rtree_ctx, (uintptr_t)ptr).edata; +} + +/* Fills in alloc_ctx with the info in the map. */ +JEMALLOC_ALWAYS_INLINE void +emap_alloc_ctx_lookup(tsdn_t *tsdn, emap_t *emap, const void *ptr, + emap_alloc_ctx_t *alloc_ctx) { + EMAP_DECLARE_RTREE_CTX; + + rtree_metadata_t metadata = rtree_metadata_read(tsdn, &emap->rtree, + rtree_ctx, (uintptr_t)ptr); + alloc_ctx->szind = metadata.szind; + alloc_ctx->slab = metadata.slab; +} + +/* The pointer must be mapped. */ +JEMALLOC_ALWAYS_INLINE void +emap_full_alloc_ctx_lookup(tsdn_t *tsdn, emap_t *emap, const void *ptr, + emap_full_alloc_ctx_t *full_alloc_ctx) { + EMAP_DECLARE_RTREE_CTX; + + rtree_contents_t contents = rtree_read(tsdn, &emap->rtree, rtree_ctx, + (uintptr_t)ptr); + full_alloc_ctx->edata = contents.edata; + full_alloc_ctx->szind = contents.metadata.szind; + full_alloc_ctx->slab = contents.metadata.slab; +} + +/* + * The pointer is allowed to not be mapped. + * + * Returns true when the pointer is not present. + */ +JEMALLOC_ALWAYS_INLINE bool +emap_full_alloc_ctx_try_lookup(tsdn_t *tsdn, emap_t *emap, const void *ptr, + emap_full_alloc_ctx_t *full_alloc_ctx) { + EMAP_DECLARE_RTREE_CTX; + + rtree_contents_t contents; + bool err = rtree_read_independent(tsdn, &emap->rtree, rtree_ctx, + (uintptr_t)ptr, &contents); + if (err) { + return true; + } + full_alloc_ctx->edata = contents.edata; + full_alloc_ctx->szind = contents.metadata.szind; + full_alloc_ctx->slab = contents.metadata.slab; + return false; +} + +/* + * Only used on the fastpath of free. Returns true when cannot be fulfilled by + * fast path, e.g. when the metadata key is not cached. + */ +JEMALLOC_ALWAYS_INLINE bool +emap_alloc_ctx_try_lookup_fast(tsd_t *tsd, emap_t *emap, const void *ptr, + emap_alloc_ctx_t *alloc_ctx) { + /* Use the unsafe getter since this may gets called during exit. */ + rtree_ctx_t *rtree_ctx = tsd_rtree_ctxp_get_unsafe(tsd); + + rtree_metadata_t metadata; + bool err = rtree_metadata_try_read_fast(tsd_tsdn(tsd), &emap->rtree, + rtree_ctx, (uintptr_t)ptr, &metadata); + if (err) { + return true; + } + alloc_ctx->szind = metadata.szind; + alloc_ctx->slab = metadata.slab; + return false; +} + +/* + * We want to do batch lookups out of the cache bins, which use + * cache_bin_ptr_array_get to access the i'th element of the bin (since they + * invert usual ordering in deciding what to flush). This lets the emap avoid + * caring about its caller's ordering. + */ +typedef const void *(*emap_ptr_getter)(void *ctx, size_t ind); +/* + * This allows size-checking assertions, which we can only do while we're in the + * process of edata lookups. + */ +typedef void (*emap_metadata_visitor)(void *ctx, emap_full_alloc_ctx_t *alloc_ctx); + +typedef union emap_batch_lookup_result_u emap_batch_lookup_result_t; +union emap_batch_lookup_result_u { + edata_t *edata; + rtree_leaf_elm_t *rtree_leaf; +}; + +JEMALLOC_ALWAYS_INLINE void +emap_edata_lookup_batch(tsd_t *tsd, emap_t *emap, size_t nptrs, + emap_ptr_getter ptr_getter, void *ptr_getter_ctx, + emap_metadata_visitor metadata_visitor, void *metadata_visitor_ctx, + emap_batch_lookup_result_t *result) { + /* Avoids null-checking tsdn in the loop below. */ + util_assume(tsd != NULL); + rtree_ctx_t *rtree_ctx = tsd_rtree_ctxp_get(tsd); + + for (size_t i = 0; i < nptrs; i++) { + const void *ptr = ptr_getter(ptr_getter_ctx, i); + /* + * Reuse the edatas array as a temp buffer, lying a little about + * the types. + */ + result[i].rtree_leaf = rtree_leaf_elm_lookup(tsd_tsdn(tsd), + &emap->rtree, rtree_ctx, (uintptr_t)ptr, + /* dependent */ true, /* init_missing */ false); + } + + for (size_t i = 0; i < nptrs; i++) { + rtree_leaf_elm_t *elm = result[i].rtree_leaf; + rtree_contents_t contents = rtree_leaf_elm_read(tsd_tsdn(tsd), + &emap->rtree, elm, /* dependent */ true); + result[i].edata = contents.edata; + emap_full_alloc_ctx_t alloc_ctx; + /* + * Not all these fields are read in practice by the metadata + * visitor. But the compiler can easily optimize away the ones + * that aren't, so no sense in being incomplete. + */ + alloc_ctx.szind = contents.metadata.szind; + alloc_ctx.slab = contents.metadata.slab; + alloc_ctx.edata = contents.edata; + metadata_visitor(metadata_visitor_ctx, &alloc_ctx); + } +} + +#endif /* JEMALLOC_INTERNAL_EMAP_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/emitter.h b/deps/jemalloc/include/jemalloc/internal/emitter.h new file mode 100644 index 0000000..9482f68 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/emitter.h @@ -0,0 +1,510 @@ +#ifndef JEMALLOC_INTERNAL_EMITTER_H +#define JEMALLOC_INTERNAL_EMITTER_H + +#include "jemalloc/internal/ql.h" + +typedef enum emitter_output_e emitter_output_t; +enum emitter_output_e { + emitter_output_json, + emitter_output_json_compact, + emitter_output_table +}; + +typedef enum emitter_justify_e emitter_justify_t; +enum emitter_justify_e { + emitter_justify_left, + emitter_justify_right, + /* Not for users; just to pass to internal functions. */ + emitter_justify_none +}; + +typedef enum emitter_type_e emitter_type_t; +enum emitter_type_e { + emitter_type_bool, + emitter_type_int, + emitter_type_int64, + emitter_type_unsigned, + emitter_type_uint32, + emitter_type_uint64, + emitter_type_size, + emitter_type_ssize, + emitter_type_string, + /* + * A title is a column title in a table; it's just a string, but it's + * not quoted. + */ + emitter_type_title, +}; + +typedef struct emitter_col_s emitter_col_t; +struct emitter_col_s { + /* Filled in by the user. */ + emitter_justify_t justify; + int width; + emitter_type_t type; + union { + bool bool_val; + int int_val; + unsigned unsigned_val; + uint32_t uint32_val; + uint32_t uint32_t_val; + uint64_t uint64_val; + uint64_t uint64_t_val; + size_t size_val; + ssize_t ssize_val; + const char *str_val; + }; + + /* Filled in by initialization. */ + ql_elm(emitter_col_t) link; +}; + +typedef struct emitter_row_s emitter_row_t; +struct emitter_row_s { + ql_head(emitter_col_t) cols; +}; + +typedef struct emitter_s emitter_t; +struct emitter_s { + emitter_output_t output; + /* The output information. */ + write_cb_t *write_cb; + void *cbopaque; + int nesting_depth; + /* True if we've already emitted a value at the given depth. */ + bool item_at_depth; + /* True if we emitted a key and will emit corresponding value next. */ + bool emitted_key; +}; + +static inline bool +emitter_outputs_json(emitter_t *emitter) { + return emitter->output == emitter_output_json || + emitter->output == emitter_output_json_compact; +} + +/* Internal convenience function. Write to the emitter the given string. */ +JEMALLOC_FORMAT_PRINTF(2, 3) +static inline void +emitter_printf(emitter_t *emitter, const char *format, ...) { + va_list ap; + + va_start(ap, format); + malloc_vcprintf(emitter->write_cb, emitter->cbopaque, format, ap); + va_end(ap); +} + +static inline const char * JEMALLOC_FORMAT_ARG(3) +emitter_gen_fmt(char *out_fmt, size_t out_size, const char *fmt_specifier, + emitter_justify_t justify, int width) { + size_t written; + fmt_specifier++; + if (justify == emitter_justify_none) { + written = malloc_snprintf(out_fmt, out_size, + "%%%s", fmt_specifier); + } else if (justify == emitter_justify_left) { + written = malloc_snprintf(out_fmt, out_size, + "%%-%d%s", width, fmt_specifier); + } else { + written = malloc_snprintf(out_fmt, out_size, + "%%%d%s", width, fmt_specifier); + } + /* Only happens in case of bad format string, which *we* choose. */ + assert(written < out_size); + return out_fmt; +} + +/* + * Internal. Emit the given value type in the relevant encoding (so that the + * bool true gets mapped to json "true", but the string "true" gets mapped to + * json "\"true\"", for instance. + * + * Width is ignored if justify is emitter_justify_none. + */ +static inline void +emitter_print_value(emitter_t *emitter, emitter_justify_t justify, int width, + emitter_type_t value_type, const void *value) { + size_t str_written; +#define BUF_SIZE 256 +#define FMT_SIZE 10 + /* + * We dynamically generate a format string to emit, to let us use the + * snprintf machinery. This is kinda hacky, but gets the job done + * quickly without having to think about the various snprintf edge + * cases. + */ + char fmt[FMT_SIZE]; + char buf[BUF_SIZE]; + +#define EMIT_SIMPLE(type, format) \ + emitter_printf(emitter, \ + emitter_gen_fmt(fmt, FMT_SIZE, format, justify, width), \ + *(const type *)value); + + switch (value_type) { + case emitter_type_bool: + emitter_printf(emitter, + emitter_gen_fmt(fmt, FMT_SIZE, "%s", justify, width), + *(const bool *)value ? "true" : "false"); + break; + case emitter_type_int: + EMIT_SIMPLE(int, "%d") + break; + case emitter_type_int64: + EMIT_SIMPLE(int64_t, "%" FMTd64) + break; + case emitter_type_unsigned: + EMIT_SIMPLE(unsigned, "%u") + break; + case emitter_type_ssize: + EMIT_SIMPLE(ssize_t, "%zd") + break; + case emitter_type_size: + EMIT_SIMPLE(size_t, "%zu") + break; + case emitter_type_string: + str_written = malloc_snprintf(buf, BUF_SIZE, "\"%s\"", + *(const char *const *)value); + /* + * We control the strings we output; we shouldn't get anything + * anywhere near the fmt size. + */ + assert(str_written < BUF_SIZE); + emitter_printf(emitter, + emitter_gen_fmt(fmt, FMT_SIZE, "%s", justify, width), buf); + break; + case emitter_type_uint32: + EMIT_SIMPLE(uint32_t, "%" FMTu32) + break; + case emitter_type_uint64: + EMIT_SIMPLE(uint64_t, "%" FMTu64) + break; + case emitter_type_title: + EMIT_SIMPLE(char *const, "%s"); + break; + default: + unreachable(); + } +#undef BUF_SIZE +#undef FMT_SIZE +} + + +/* Internal functions. In json mode, tracks nesting state. */ +static inline void +emitter_nest_inc(emitter_t *emitter) { + emitter->nesting_depth++; + emitter->item_at_depth = false; +} + +static inline void +emitter_nest_dec(emitter_t *emitter) { + emitter->nesting_depth--; + emitter->item_at_depth = true; +} + +static inline void +emitter_indent(emitter_t *emitter) { + int amount = emitter->nesting_depth; + const char *indent_str; + assert(emitter->output != emitter_output_json_compact); + if (emitter->output == emitter_output_json) { + indent_str = "\t"; + } else { + amount *= 2; + indent_str = " "; + } + for (int i = 0; i < amount; i++) { + emitter_printf(emitter, "%s", indent_str); + } +} + +static inline void +emitter_json_key_prefix(emitter_t *emitter) { + assert(emitter_outputs_json(emitter)); + if (emitter->emitted_key) { + emitter->emitted_key = false; + return; + } + if (emitter->item_at_depth) { + emitter_printf(emitter, ","); + } + if (emitter->output != emitter_output_json_compact) { + emitter_printf(emitter, "\n"); + emitter_indent(emitter); + } +} + +/******************************************************************************/ +/* Public functions for emitter_t. */ + +static inline void +emitter_init(emitter_t *emitter, emitter_output_t emitter_output, + write_cb_t *write_cb, void *cbopaque) { + emitter->output = emitter_output; + emitter->write_cb = write_cb; + emitter->cbopaque = cbopaque; + emitter->item_at_depth = false; + emitter->emitted_key = false; + emitter->nesting_depth = 0; +} + +/******************************************************************************/ +/* JSON public API. */ + +/* + * Emits a key (e.g. as appears in an object). The next json entity emitted will + * be the corresponding value. + */ +static inline void +emitter_json_key(emitter_t *emitter, const char *json_key) { + if (emitter_outputs_json(emitter)) { + emitter_json_key_prefix(emitter); + emitter_printf(emitter, "\"%s\":%s", json_key, + emitter->output == emitter_output_json_compact ? "" : " "); + emitter->emitted_key = true; + } +} + +static inline void +emitter_json_value(emitter_t *emitter, emitter_type_t value_type, + const void *value) { + if (emitter_outputs_json(emitter)) { + emitter_json_key_prefix(emitter); + emitter_print_value(emitter, emitter_justify_none, -1, + value_type, value); + emitter->item_at_depth = true; + } +} + +/* Shorthand for calling emitter_json_key and then emitter_json_value. */ +static inline void +emitter_json_kv(emitter_t *emitter, const char *json_key, + emitter_type_t value_type, const void *value) { + emitter_json_key(emitter, json_key); + emitter_json_value(emitter, value_type, value); +} + +static inline void +emitter_json_array_begin(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + emitter_json_key_prefix(emitter); + emitter_printf(emitter, "["); + emitter_nest_inc(emitter); + } +} + +/* Shorthand for calling emitter_json_key and then emitter_json_array_begin. */ +static inline void +emitter_json_array_kv_begin(emitter_t *emitter, const char *json_key) { + emitter_json_key(emitter, json_key); + emitter_json_array_begin(emitter); +} + +static inline void +emitter_json_array_end(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + assert(emitter->nesting_depth > 0); + emitter_nest_dec(emitter); + if (emitter->output != emitter_output_json_compact) { + emitter_printf(emitter, "\n"); + emitter_indent(emitter); + } + emitter_printf(emitter, "]"); + } +} + +static inline void +emitter_json_object_begin(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + emitter_json_key_prefix(emitter); + emitter_printf(emitter, "{"); + emitter_nest_inc(emitter); + } +} + +/* Shorthand for calling emitter_json_key and then emitter_json_object_begin. */ +static inline void +emitter_json_object_kv_begin(emitter_t *emitter, const char *json_key) { + emitter_json_key(emitter, json_key); + emitter_json_object_begin(emitter); +} + +static inline void +emitter_json_object_end(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + assert(emitter->nesting_depth > 0); + emitter_nest_dec(emitter); + if (emitter->output != emitter_output_json_compact) { + emitter_printf(emitter, "\n"); + emitter_indent(emitter); + } + emitter_printf(emitter, "}"); + } +} + + +/******************************************************************************/ +/* Table public API. */ + +static inline void +emitter_table_dict_begin(emitter_t *emitter, const char *table_key) { + if (emitter->output == emitter_output_table) { + emitter_indent(emitter); + emitter_printf(emitter, "%s\n", table_key); + emitter_nest_inc(emitter); + } +} + +static inline void +emitter_table_dict_end(emitter_t *emitter) { + if (emitter->output == emitter_output_table) { + emitter_nest_dec(emitter); + } +} + +static inline void +emitter_table_kv_note(emitter_t *emitter, const char *table_key, + emitter_type_t value_type, const void *value, + const char *table_note_key, emitter_type_t table_note_value_type, + const void *table_note_value) { + if (emitter->output == emitter_output_table) { + emitter_indent(emitter); + emitter_printf(emitter, "%s: ", table_key); + emitter_print_value(emitter, emitter_justify_none, -1, + value_type, value); + if (table_note_key != NULL) { + emitter_printf(emitter, " (%s: ", table_note_key); + emitter_print_value(emitter, emitter_justify_none, -1, + table_note_value_type, table_note_value); + emitter_printf(emitter, ")"); + } + emitter_printf(emitter, "\n"); + } + emitter->item_at_depth = true; +} + +static inline void +emitter_table_kv(emitter_t *emitter, const char *table_key, + emitter_type_t value_type, const void *value) { + emitter_table_kv_note(emitter, table_key, value_type, value, NULL, + emitter_type_bool, NULL); +} + + +/* Write to the emitter the given string, but only in table mode. */ +JEMALLOC_FORMAT_PRINTF(2, 3) +static inline void +emitter_table_printf(emitter_t *emitter, const char *format, ...) { + if (emitter->output == emitter_output_table) { + va_list ap; + va_start(ap, format); + malloc_vcprintf(emitter->write_cb, emitter->cbopaque, format, ap); + va_end(ap); + } +} + +static inline void +emitter_table_row(emitter_t *emitter, emitter_row_t *row) { + if (emitter->output != emitter_output_table) { + return; + } + emitter_col_t *col; + ql_foreach(col, &row->cols, link) { + emitter_print_value(emitter, col->justify, col->width, + col->type, (const void *)&col->bool_val); + } + emitter_table_printf(emitter, "\n"); +} + +static inline void +emitter_row_init(emitter_row_t *row) { + ql_new(&row->cols); +} + +static inline void +emitter_col_init(emitter_col_t *col, emitter_row_t *row) { + ql_elm_new(col, link); + ql_tail_insert(&row->cols, col, link); +} + + +/******************************************************************************/ +/* + * Generalized public API. Emits using either JSON or table, according to + * settings in the emitter_t. */ + +/* + * Note emits a different kv pair as well, but only in table mode. Omits the + * note if table_note_key is NULL. + */ +static inline void +emitter_kv_note(emitter_t *emitter, const char *json_key, const char *table_key, + emitter_type_t value_type, const void *value, + const char *table_note_key, emitter_type_t table_note_value_type, + const void *table_note_value) { + if (emitter_outputs_json(emitter)) { + emitter_json_key(emitter, json_key); + emitter_json_value(emitter, value_type, value); + } else { + emitter_table_kv_note(emitter, table_key, value_type, value, + table_note_key, table_note_value_type, table_note_value); + } + emitter->item_at_depth = true; +} + +static inline void +emitter_kv(emitter_t *emitter, const char *json_key, const char *table_key, + emitter_type_t value_type, const void *value) { + emitter_kv_note(emitter, json_key, table_key, value_type, value, NULL, + emitter_type_bool, NULL); +} + +static inline void +emitter_dict_begin(emitter_t *emitter, const char *json_key, + const char *table_header) { + if (emitter_outputs_json(emitter)) { + emitter_json_key(emitter, json_key); + emitter_json_object_begin(emitter); + } else { + emitter_table_dict_begin(emitter, table_header); + } +} + +static inline void +emitter_dict_end(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + emitter_json_object_end(emitter); + } else { + emitter_table_dict_end(emitter); + } +} + +static inline void +emitter_begin(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + assert(emitter->nesting_depth == 0); + emitter_printf(emitter, "{"); + emitter_nest_inc(emitter); + } else { + /* + * This guarantees that we always call write_cb at least once. + * This is useful if some invariant is established by each call + * to write_cb, but doesn't hold initially: e.g., some buffer + * holds a null-terminated string. + */ + emitter_printf(emitter, "%s", ""); + } +} + +static inline void +emitter_end(emitter_t *emitter) { + if (emitter_outputs_json(emitter)) { + assert(emitter->nesting_depth == 1); + emitter_nest_dec(emitter); + emitter_printf(emitter, "%s", emitter->output == + emitter_output_json_compact ? "}" : "\n}\n"); + } +} + +#endif /* JEMALLOC_INTERNAL_EMITTER_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/eset.h b/deps/jemalloc/include/jemalloc/internal/eset.h new file mode 100644 index 0000000..4f689b4 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/eset.h @@ -0,0 +1,77 @@ +#ifndef JEMALLOC_INTERNAL_ESET_H +#define JEMALLOC_INTERNAL_ESET_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/fb.h" +#include "jemalloc/internal/edata.h" +#include "jemalloc/internal/mutex.h" + +/* + * An eset ("extent set") is a quantized collection of extents, with built-in + * LRU queue. + * + * This class is not thread-safe; synchronization must be done externally if + * there are mutating operations. One exception is the stats counters, which + * may be read without any locking. + */ + +typedef struct eset_bin_s eset_bin_t; +struct eset_bin_s { + edata_heap_t heap; + /* + * We do first-fit across multiple size classes. If we compared against + * the min element in each heap directly, we'd take a cache miss per + * extent we looked at. If we co-locate the edata summaries, we only + * take a miss on the edata we're actually going to return (which is + * inevitable anyways). + */ + edata_cmp_summary_t heap_min; +}; + +typedef struct eset_bin_stats_s eset_bin_stats_t; +struct eset_bin_stats_s { + atomic_zu_t nextents; + atomic_zu_t nbytes; +}; + +typedef struct eset_s eset_t; +struct eset_s { + /* Bitmap for which set bits correspond to non-empty heaps. */ + fb_group_t bitmap[FB_NGROUPS(SC_NPSIZES + 1)]; + + /* Quantized per size class heaps of extents. */ + eset_bin_t bins[SC_NPSIZES + 1]; + + eset_bin_stats_t bin_stats[SC_NPSIZES + 1]; + + /* LRU of all extents in heaps. */ + edata_list_inactive_t lru; + + /* Page sum for all extents in heaps. */ + atomic_zu_t npages; + + /* + * A duplication of the data in the containing ecache. We use this only + * for assertions on the states of the passed-in extents. + */ + extent_state_t state; +}; + +void eset_init(eset_t *eset, extent_state_t state); + +size_t eset_npages_get(eset_t *eset); +/* Get the number of extents in the given page size index. */ +size_t eset_nextents_get(eset_t *eset, pszind_t ind); +/* Get the sum total bytes of the extents in the given page size index. */ +size_t eset_nbytes_get(eset_t *eset, pszind_t ind); + +void eset_insert(eset_t *eset, edata_t *edata); +void eset_remove(eset_t *eset, edata_t *edata); +/* + * Select an extent from this eset of the given size and alignment. Returns + * null if no such item could be found. + */ +edata_t *eset_fit(eset_t *eset, size_t esize, size_t alignment, bool exact_only, + unsigned lg_max_fit); + +#endif /* JEMALLOC_INTERNAL_ESET_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/exp_grow.h b/deps/jemalloc/include/jemalloc/internal/exp_grow.h new file mode 100644 index 0000000..8566b8a --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/exp_grow.h @@ -0,0 +1,50 @@ +#ifndef JEMALLOC_INTERNAL_EXP_GROW_H +#define JEMALLOC_INTERNAL_EXP_GROW_H + +typedef struct exp_grow_s exp_grow_t; +struct exp_grow_s { + /* + * Next extent size class in a growing series to use when satisfying a + * request via the extent hooks (only if opt_retain). This limits the + * number of disjoint virtual memory ranges so that extent merging can + * be effective even if multiple arenas' extent allocation requests are + * highly interleaved. + * + * retain_grow_limit is the max allowed size ind to expand (unless the + * required size is greater). Default is no limit, and controlled + * through mallctl only. + */ + pszind_t next; + pszind_t limit; +}; + +static inline bool +exp_grow_size_prepare(exp_grow_t *exp_grow, size_t alloc_size_min, + size_t *r_alloc_size, pszind_t *r_skip) { + *r_skip = 0; + *r_alloc_size = sz_pind2sz(exp_grow->next + *r_skip); + while (*r_alloc_size < alloc_size_min) { + (*r_skip)++; + if (exp_grow->next + *r_skip >= + sz_psz2ind(SC_LARGE_MAXCLASS)) { + /* Outside legal range. */ + return true; + } + *r_alloc_size = sz_pind2sz(exp_grow->next + *r_skip); + } + return false; +} + +static inline void +exp_grow_size_commit(exp_grow_t *exp_grow, pszind_t skip) { + if (exp_grow->next + skip + 1 <= exp_grow->limit) { + exp_grow->next += skip + 1; + } else { + exp_grow->next = exp_grow->limit; + } + +} + +void exp_grow_init(exp_grow_t *exp_grow); + +#endif /* JEMALLOC_INTERNAL_EXP_GROW_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/extent.h b/deps/jemalloc/include/jemalloc/internal/extent.h new file mode 100644 index 0000000..1d51d41 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/extent.h @@ -0,0 +1,137 @@ +#ifndef JEMALLOC_INTERNAL_EXTENT_H +#define JEMALLOC_INTERNAL_EXTENT_H + +#include "jemalloc/internal/ecache.h" +#include "jemalloc/internal/ehooks.h" +#include "jemalloc/internal/ph.h" +#include "jemalloc/internal/rtree.h" + +/* + * This module contains the page-level allocator. It chooses the addresses that + * allocations requested by other modules will inhabit, and updates the global + * metadata to reflect allocation/deallocation/purging decisions. + */ + +/* + * When reuse (and split) an active extent, (1U << opt_lg_extent_max_active_fit) + * is the max ratio between the size of the active extent and the new extent. + */ +#define LG_EXTENT_MAX_ACTIVE_FIT_DEFAULT 6 +extern size_t opt_lg_extent_max_active_fit; + +edata_t *ecache_alloc(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + ecache_t *ecache, edata_t *expand_edata, size_t size, size_t alignment, + bool zero, bool guarded); +edata_t *ecache_alloc_grow(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + ecache_t *ecache, edata_t *expand_edata, size_t size, size_t alignment, + bool zero, bool guarded); +void ecache_dalloc(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + ecache_t *ecache, edata_t *edata); +edata_t *ecache_evict(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + ecache_t *ecache, size_t npages_min); + +void extent_gdump_add(tsdn_t *tsdn, const edata_t *edata); +void extent_record(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, ecache_t *ecache, + edata_t *edata); +void extent_dalloc_gap(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + edata_t *edata); +edata_t *extent_alloc_wrapper(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + void *new_addr, size_t size, size_t alignment, bool zero, bool *commit, + bool growing_retained); +void extent_dalloc_wrapper(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + edata_t *edata); +void extent_destroy_wrapper(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + edata_t *edata); +bool extent_commit_wrapper(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + size_t offset, size_t length); +bool extent_decommit_wrapper(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + size_t offset, size_t length); +bool extent_purge_lazy_wrapper(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + size_t offset, size_t length); +bool extent_purge_forced_wrapper(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + size_t offset, size_t length); +edata_t *extent_split_wrapper(tsdn_t *tsdn, pac_t *pac, + ehooks_t *ehooks, edata_t *edata, size_t size_a, size_t size_b, + bool holding_core_locks); +bool extent_merge_wrapper(tsdn_t *tsdn, pac_t *pac, ehooks_t *ehooks, + edata_t *a, edata_t *b); +bool extent_commit_zero(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + bool commit, bool zero, bool growing_retained); +size_t extent_sn_next(pac_t *pac); +bool extent_boot(void); + +JEMALLOC_ALWAYS_INLINE bool +extent_neighbor_head_state_mergeable(bool edata_is_head, + bool neighbor_is_head, bool forward) { + /* + * Head states checking: disallow merging if the higher addr extent is a + * head extent. This helps preserve first-fit, and more importantly + * makes sure no merge across arenas. + */ + if (forward) { + if (neighbor_is_head) { + return false; + } + } else { + if (edata_is_head) { + return false; + } + } + return true; +} + +JEMALLOC_ALWAYS_INLINE bool +extent_can_acquire_neighbor(edata_t *edata, rtree_contents_t contents, + extent_pai_t pai, extent_state_t expected_state, bool forward, + bool expanding) { + edata_t *neighbor = contents.edata; + if (neighbor == NULL) { + return false; + } + /* It's not safe to access *neighbor yet; must verify states first. */ + bool neighbor_is_head = contents.metadata.is_head; + if (!extent_neighbor_head_state_mergeable(edata_is_head_get(edata), + neighbor_is_head, forward)) { + return false; + } + extent_state_t neighbor_state = contents.metadata.state; + if (pai == EXTENT_PAI_PAC) { + if (neighbor_state != expected_state) { + return false; + } + /* From this point, it's safe to access *neighbor. */ + if (!expanding && (edata_committed_get(edata) != + edata_committed_get(neighbor))) { + /* + * Some platforms (e.g. Windows) require an explicit + * commit step (and writing to uncommitted memory is not + * allowed). + */ + return false; + } + } else { + if (neighbor_state == extent_state_active) { + return false; + } + /* From this point, it's safe to access *neighbor. */ + } + + assert(edata_pai_get(edata) == pai); + if (edata_pai_get(neighbor) != pai) { + return false; + } + if (opt_retain) { + assert(edata_arena_ind_get(edata) == + edata_arena_ind_get(neighbor)); + } else { + if (edata_arena_ind_get(edata) != + edata_arena_ind_get(neighbor)) { + return false; + } + } + assert(!edata_guarded_get(edata) && !edata_guarded_get(neighbor)); + + return true; +} + +#endif /* JEMALLOC_INTERNAL_EXTENT_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/extent_dss.h b/deps/jemalloc/include/jemalloc/internal/extent_dss.h new file mode 100644 index 0000000..e8f02ce --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/extent_dss.h @@ -0,0 +1,26 @@ +#ifndef JEMALLOC_INTERNAL_EXTENT_DSS_H +#define JEMALLOC_INTERNAL_EXTENT_DSS_H + +typedef enum { + dss_prec_disabled = 0, + dss_prec_primary = 1, + dss_prec_secondary = 2, + + dss_prec_limit = 3 +} dss_prec_t; +#define DSS_PREC_DEFAULT dss_prec_secondary +#define DSS_DEFAULT "secondary" + +extern const char *dss_prec_names[]; + +extern const char *opt_dss; + +dss_prec_t extent_dss_prec_get(void); +bool extent_dss_prec_set(dss_prec_t dss_prec); +void *extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr, + size_t size, size_t alignment, bool *zero, bool *commit); +bool extent_in_dss(void *addr); +bool extent_dss_mergeable(void *addr_a, void *addr_b); +void extent_dss_boot(void); + +#endif /* JEMALLOC_INTERNAL_EXTENT_DSS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/extent_mmap.h b/deps/jemalloc/include/jemalloc/internal/extent_mmap.h new file mode 100644 index 0000000..55f17ee --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/extent_mmap.h @@ -0,0 +1,10 @@ +#ifndef JEMALLOC_INTERNAL_EXTENT_MMAP_EXTERNS_H +#define JEMALLOC_INTERNAL_EXTENT_MMAP_EXTERNS_H + +extern bool opt_retain; + +void *extent_alloc_mmap(void *new_addr, size_t size, size_t alignment, + bool *zero, bool *commit); +bool extent_dalloc_mmap(void *addr, size_t size); + +#endif /* JEMALLOC_INTERNAL_EXTENT_MMAP_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/fb.h b/deps/jemalloc/include/jemalloc/internal/fb.h new file mode 100644 index 0000000..90c4091 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/fb.h @@ -0,0 +1,373 @@ +#ifndef JEMALLOC_INTERNAL_FB_H +#define JEMALLOC_INTERNAL_FB_H + +/* + * The flat bitmap module. This has a larger API relative to the bitmap module + * (supporting things like backwards searches, and searching for both set and + * unset bits), at the cost of slower operations for very large bitmaps. + * + * Initialized flat bitmaps start at all-zeros (all bits unset). + */ + +typedef unsigned long fb_group_t; +#define FB_GROUP_BITS (ZU(1) << (LG_SIZEOF_LONG + 3)) +#define FB_NGROUPS(nbits) ((nbits) / FB_GROUP_BITS \ + + ((nbits) % FB_GROUP_BITS == 0 ? 0 : 1)) + +static inline void +fb_init(fb_group_t *fb, size_t nbits) { + size_t ngroups = FB_NGROUPS(nbits); + memset(fb, 0, ngroups * sizeof(fb_group_t)); +} + +static inline bool +fb_empty(fb_group_t *fb, size_t nbits) { + size_t ngroups = FB_NGROUPS(nbits); + for (size_t i = 0; i < ngroups; i++) { + if (fb[i] != 0) { + return false; + } + } + return true; +} + +static inline bool +fb_full(fb_group_t *fb, size_t nbits) { + size_t ngroups = FB_NGROUPS(nbits); + size_t trailing_bits = nbits % FB_GROUP_BITS; + size_t limit = (trailing_bits == 0 ? ngroups : ngroups - 1); + for (size_t i = 0; i < limit; i++) { + if (fb[i] != ~(fb_group_t)0) { + return false; + } + } + if (trailing_bits == 0) { + return true; + } + return fb[ngroups - 1] == ((fb_group_t)1 << trailing_bits) - 1; +} + +static inline bool +fb_get(fb_group_t *fb, size_t nbits, size_t bit) { + assert(bit < nbits); + size_t group_ind = bit / FB_GROUP_BITS; + size_t bit_ind = bit % FB_GROUP_BITS; + return (bool)(fb[group_ind] & ((fb_group_t)1 << bit_ind)); +} + +static inline void +fb_set(fb_group_t *fb, size_t nbits, size_t bit) { + assert(bit < nbits); + size_t group_ind = bit / FB_GROUP_BITS; + size_t bit_ind = bit % FB_GROUP_BITS; + fb[group_ind] |= ((fb_group_t)1 << bit_ind); +} + +static inline void +fb_unset(fb_group_t *fb, size_t nbits, size_t bit) { + assert(bit < nbits); + size_t group_ind = bit / FB_GROUP_BITS; + size_t bit_ind = bit % FB_GROUP_BITS; + fb[group_ind] &= ~((fb_group_t)1 << bit_ind); +} + + +/* + * Some implementation details. This visitation function lets us apply a group + * visitor to each group in the bitmap (potentially modifying it). The mask + * indicates which bits are logically part of the visitation. + */ +typedef void (*fb_group_visitor_t)(void *ctx, fb_group_t *fb, fb_group_t mask); +JEMALLOC_ALWAYS_INLINE void +fb_visit_impl(fb_group_t *fb, size_t nbits, fb_group_visitor_t visit, void *ctx, + size_t start, size_t cnt) { + assert(cnt > 0); + assert(start + cnt <= nbits); + size_t group_ind = start / FB_GROUP_BITS; + size_t start_bit_ind = start % FB_GROUP_BITS; + /* + * The first group is special; it's the only one we don't start writing + * to from bit 0. + */ + size_t first_group_cnt = (start_bit_ind + cnt > FB_GROUP_BITS + ? FB_GROUP_BITS - start_bit_ind : cnt); + /* + * We can basically split affected words into: + * - The first group, where we touch only the high bits + * - The last group, where we touch only the low bits + * - The middle, where we set all the bits to the same thing. + * We treat each case individually. The last two could be merged, but + * this can lead to bad codegen for those middle words. + */ + /* First group */ + fb_group_t mask = ((~(fb_group_t)0) + >> (FB_GROUP_BITS - first_group_cnt)) + << start_bit_ind; + visit(ctx, &fb[group_ind], mask); + + cnt -= first_group_cnt; + group_ind++; + /* Middle groups */ + while (cnt > FB_GROUP_BITS) { + visit(ctx, &fb[group_ind], ~(fb_group_t)0); + cnt -= FB_GROUP_BITS; + group_ind++; + } + /* Last group */ + if (cnt != 0) { + mask = (~(fb_group_t)0) >> (FB_GROUP_BITS - cnt); + visit(ctx, &fb[group_ind], mask); + } +} + +JEMALLOC_ALWAYS_INLINE void +fb_assign_visitor(void *ctx, fb_group_t *fb, fb_group_t mask) { + bool val = *(bool *)ctx; + if (val) { + *fb |= mask; + } else { + *fb &= ~mask; + } +} + +/* Sets the cnt bits starting at position start. Must not have a 0 count. */ +static inline void +fb_set_range(fb_group_t *fb, size_t nbits, size_t start, size_t cnt) { + bool val = true; + fb_visit_impl(fb, nbits, &fb_assign_visitor, &val, start, cnt); +} + +/* Unsets the cnt bits starting at position start. Must not have a 0 count. */ +static inline void +fb_unset_range(fb_group_t *fb, size_t nbits, size_t start, size_t cnt) { + bool val = false; + fb_visit_impl(fb, nbits, &fb_assign_visitor, &val, start, cnt); +} + +JEMALLOC_ALWAYS_INLINE void +fb_scount_visitor(void *ctx, fb_group_t *fb, fb_group_t mask) { + size_t *scount = (size_t *)ctx; + *scount += popcount_lu(*fb & mask); +} + +/* Finds the number of set bit in the of length cnt starting at start. */ +JEMALLOC_ALWAYS_INLINE size_t +fb_scount(fb_group_t *fb, size_t nbits, size_t start, size_t cnt) { + size_t scount = 0; + fb_visit_impl(fb, nbits, &fb_scount_visitor, &scount, start, cnt); + return scount; +} + +/* Finds the number of unset bit in the of length cnt starting at start. */ +JEMALLOC_ALWAYS_INLINE size_t +fb_ucount(fb_group_t *fb, size_t nbits, size_t start, size_t cnt) { + size_t scount = fb_scount(fb, nbits, start, cnt); + return cnt - scount; +} + +/* + * An implementation detail; find the first bit at position >= min_bit with the + * value val. + * + * Returns the number of bits in the bitmap if no such bit exists. + */ +JEMALLOC_ALWAYS_INLINE ssize_t +fb_find_impl(fb_group_t *fb, size_t nbits, size_t start, bool val, + bool forward) { + assert(start < nbits); + size_t ngroups = FB_NGROUPS(nbits); + ssize_t group_ind = start / FB_GROUP_BITS; + size_t bit_ind = start % FB_GROUP_BITS; + + fb_group_t maybe_invert = (val ? 0 : (fb_group_t)-1); + + fb_group_t group = fb[group_ind]; + group ^= maybe_invert; + if (forward) { + /* Only keep ones in bits bit_ind and above. */ + group &= ~((1LU << bit_ind) - 1); + } else { + /* + * Only keep ones in bits bit_ind and below. You might more + * naturally express this as (1 << (bit_ind + 1)) - 1, but + * that shifts by an invalid amount if bit_ind is one less than + * FB_GROUP_BITS. + */ + group &= ((2LU << bit_ind) - 1); + } + ssize_t group_ind_bound = forward ? (ssize_t)ngroups : -1; + while (group == 0) { + group_ind += forward ? 1 : -1; + if (group_ind == group_ind_bound) { + return forward ? (ssize_t)nbits : (ssize_t)-1; + } + group = fb[group_ind]; + group ^= maybe_invert; + } + assert(group != 0); + size_t bit = forward ? ffs_lu(group) : fls_lu(group); + size_t pos = group_ind * FB_GROUP_BITS + bit; + /* + * The high bits of a partially filled last group are zeros, so if we're + * looking for zeros we don't want to report an invalid result. + */ + if (forward && !val && pos > nbits) { + return nbits; + } + return pos; +} + +/* + * Find the first set bit in the bitmap with an index >= min_bit. Returns the + * number of bits in the bitmap if no such bit exists. + */ +static inline size_t +fb_ffu(fb_group_t *fb, size_t nbits, size_t min_bit) { + return (size_t)fb_find_impl(fb, nbits, min_bit, /* val */ false, + /* forward */ true); +} + +/* The same, but looks for an unset bit. */ +static inline size_t +fb_ffs(fb_group_t *fb, size_t nbits, size_t min_bit) { + return (size_t)fb_find_impl(fb, nbits, min_bit, /* val */ true, + /* forward */ true); +} + +/* + * Find the last set bit in the bitmap with an index <= max_bit. Returns -1 if + * no such bit exists. + */ +static inline ssize_t +fb_flu(fb_group_t *fb, size_t nbits, size_t max_bit) { + return fb_find_impl(fb, nbits, max_bit, /* val */ false, + /* forward */ false); +} + +static inline ssize_t +fb_fls(fb_group_t *fb, size_t nbits, size_t max_bit) { + return fb_find_impl(fb, nbits, max_bit, /* val */ true, + /* forward */ false); +} + +/* Returns whether or not we found a range. */ +JEMALLOC_ALWAYS_INLINE bool +fb_iter_range_impl(fb_group_t *fb, size_t nbits, size_t start, size_t *r_begin, + size_t *r_len, bool val, bool forward) { + assert(start < nbits); + ssize_t next_range_begin = fb_find_impl(fb, nbits, start, val, forward); + if ((forward && next_range_begin == (ssize_t)nbits) + || (!forward && next_range_begin == (ssize_t)-1)) { + return false; + } + /* Half open range; the set bits are [begin, end). */ + ssize_t next_range_end = fb_find_impl(fb, nbits, next_range_begin, !val, + forward); + if (forward) { + *r_begin = next_range_begin; + *r_len = next_range_end - next_range_begin; + } else { + *r_begin = next_range_end + 1; + *r_len = next_range_begin - next_range_end; + } + return true; +} + +/* + * Used to iterate through ranges of set bits. + * + * Tries to find the next contiguous sequence of set bits with a first index >= + * start. If one exists, puts the earliest bit of the range in *r_begin, its + * length in *r_len, and returns true. Otherwise, returns false (without + * touching *r_begin or *r_end). + */ +static inline bool +fb_srange_iter(fb_group_t *fb, size_t nbits, size_t start, size_t *r_begin, + size_t *r_len) { + return fb_iter_range_impl(fb, nbits, start, r_begin, r_len, + /* val */ true, /* forward */ true); +} + +/* + * The same as fb_srange_iter, but searches backwards from start rather than + * forwards. (The position returned is still the earliest bit in the range). + */ +static inline bool +fb_srange_riter(fb_group_t *fb, size_t nbits, size_t start, size_t *r_begin, + size_t *r_len) { + return fb_iter_range_impl(fb, nbits, start, r_begin, r_len, + /* val */ true, /* forward */ false); +} + +/* Similar to fb_srange_iter, but searches for unset bits. */ +static inline bool +fb_urange_iter(fb_group_t *fb, size_t nbits, size_t start, size_t *r_begin, + size_t *r_len) { + return fb_iter_range_impl(fb, nbits, start, r_begin, r_len, + /* val */ false, /* forward */ true); +} + +/* Similar to fb_srange_riter, but searches for unset bits. */ +static inline bool +fb_urange_riter(fb_group_t *fb, size_t nbits, size_t start, size_t *r_begin, + size_t *r_len) { + return fb_iter_range_impl(fb, nbits, start, r_begin, r_len, + /* val */ false, /* forward */ false); +} + +JEMALLOC_ALWAYS_INLINE size_t +fb_range_longest_impl(fb_group_t *fb, size_t nbits, bool val) { + size_t begin = 0; + size_t longest_len = 0; + size_t len = 0; + while (begin < nbits && fb_iter_range_impl(fb, nbits, begin, &begin, + &len, val, /* forward */ true)) { + if (len > longest_len) { + longest_len = len; + } + begin += len; + } + return longest_len; +} + +static inline size_t +fb_srange_longest(fb_group_t *fb, size_t nbits) { + return fb_range_longest_impl(fb, nbits, /* val */ true); +} + +static inline size_t +fb_urange_longest(fb_group_t *fb, size_t nbits) { + return fb_range_longest_impl(fb, nbits, /* val */ false); +} + +/* + * Initializes each bit of dst with the bitwise-AND of the corresponding bits of + * src1 and src2. All bitmaps must be the same size. + */ +static inline void +fb_bit_and(fb_group_t *dst, fb_group_t *src1, fb_group_t *src2, size_t nbits) { + size_t ngroups = FB_NGROUPS(nbits); + for (size_t i = 0; i < ngroups; i++) { + dst[i] = src1[i] & src2[i]; + } +} + +/* Like fb_bit_and, but with bitwise-OR. */ +static inline void +fb_bit_or(fb_group_t *dst, fb_group_t *src1, fb_group_t *src2, size_t nbits) { + size_t ngroups = FB_NGROUPS(nbits); + for (size_t i = 0; i < ngroups; i++) { + dst[i] = src1[i] | src2[i]; + } +} + +/* Initializes dst bit i to the negation of source bit i. */ +static inline void +fb_bit_not(fb_group_t *dst, fb_group_t *src, size_t nbits) { + size_t ngroups = FB_NGROUPS(nbits); + for (size_t i = 0; i < ngroups; i++) { + dst[i] = ~src[i]; + } +} + +#endif /* JEMALLOC_INTERNAL_FB_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/fxp.h b/deps/jemalloc/include/jemalloc/internal/fxp.h new file mode 100644 index 0000000..415a982 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/fxp.h @@ -0,0 +1,126 @@ +#ifndef JEMALLOC_INTERNAL_FXP_H +#define JEMALLOC_INTERNAL_FXP_H + +/* + * A simple fixed-point math implementation, supporting only unsigned values + * (with overflow being an error). + * + * It's not in general safe to use floating point in core code, because various + * libc implementations we get linked against can assume that malloc won't touch + * floating point state and call it with an unusual calling convention. + */ + +/* + * High 16 bits are the integer part, low 16 are the fractional part. Or + * equivalently, repr == 2**16 * val, where we use "val" to refer to the + * (imaginary) fractional representation of the true value. + * + * We pick a uint32_t here since it's convenient in some places to + * double the representation size (i.e. multiplication and division use + * 64-bit integer types), and a uint64_t is the largest type we're + * certain is available. + */ +typedef uint32_t fxp_t; +#define FXP_INIT_INT(x) ((x) << 16) +#define FXP_INIT_PERCENT(pct) (((pct) << 16) / 100) + +/* + * Amount of precision used in parsing and printing numbers. The integer bound + * is simply because the integer part of the number gets 16 bits, and so is + * bounded by 65536. + * + * We use a lot of precision for the fractional part, even though most of it + * gets rounded off; this lets us get exact values for the important special + * case where the denominator is a small power of 2 (for instance, + * 1/512 == 0.001953125 is exactly representable even with only 16 bits of + * fractional precision). We need to left-shift by 16 before dividing by + * 10**precision, so we pick precision to be floor(log(2**48)) = 14. + */ +#define FXP_INTEGER_PART_DIGITS 5 +#define FXP_FRACTIONAL_PART_DIGITS 14 + +/* + * In addition to the integer and fractional parts of the number, we need to + * include a null character and (possibly) a decimal point. + */ +#define FXP_BUF_SIZE (FXP_INTEGER_PART_DIGITS + FXP_FRACTIONAL_PART_DIGITS + 2) + +static inline fxp_t +fxp_add(fxp_t a, fxp_t b) { + return a + b; +} + +static inline fxp_t +fxp_sub(fxp_t a, fxp_t b) { + assert(a >= b); + return a - b; +} + +static inline fxp_t +fxp_mul(fxp_t a, fxp_t b) { + uint64_t unshifted = (uint64_t)a * (uint64_t)b; + /* + * Unshifted is (a.val * 2**16) * (b.val * 2**16) + * == (a.val * b.val) * 2**32, but we want + * (a.val * b.val) * 2 ** 16. + */ + return (uint32_t)(unshifted >> 16); +} + +static inline fxp_t +fxp_div(fxp_t a, fxp_t b) { + assert(b != 0); + uint64_t unshifted = ((uint64_t)a << 32) / (uint64_t)b; + /* + * Unshifted is (a.val * 2**16) * (2**32) / (b.val * 2**16) + * == (a.val / b.val) * (2 ** 32), which again corresponds to a right + * shift of 16. + */ + return (uint32_t)(unshifted >> 16); +} + +static inline uint32_t +fxp_round_down(fxp_t a) { + return a >> 16; +} + +static inline uint32_t +fxp_round_nearest(fxp_t a) { + uint32_t fractional_part = (a & ((1U << 16) - 1)); + uint32_t increment = (uint32_t)(fractional_part >= (1U << 15)); + return (a >> 16) + increment; +} + +/* + * Approximately computes x * frac, without the size limitations that would be + * imposed by converting u to an fxp_t. + */ +static inline size_t +fxp_mul_frac(size_t x_orig, fxp_t frac) { + assert(frac <= (1U << 16)); + /* + * Work around an over-enthusiastic warning about type limits below (on + * 32-bit platforms, a size_t is always less than 1ULL << 48). + */ + uint64_t x = (uint64_t)x_orig; + /* + * If we can guarantee no overflow, multiply first before shifting, to + * preserve some precision. Otherwise, shift first and then multiply. + * In the latter case, we only lose the low 16 bits of a 48-bit number, + * so we're still accurate to within 1/2**32. + */ + if (x < (1ULL << 48)) { + return (size_t)((x * frac) >> 16); + } else { + return (size_t)((x >> 16) * (uint64_t)frac); + } +} + +/* + * Returns true on error. Otherwise, returns false and updates *ptr to point to + * the first character not parsed (because it wasn't a digit). + */ +bool fxp_parse(fxp_t *a, const char *ptr, char **end); +void fxp_print(fxp_t a, char buf[FXP_BUF_SIZE]); + +#endif /* JEMALLOC_INTERNAL_FXP_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/hash.h b/deps/jemalloc/include/jemalloc/internal/hash.h new file mode 100644 index 0000000..7f94567 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/hash.h @@ -0,0 +1,320 @@ +#ifndef JEMALLOC_INTERNAL_HASH_H +#define JEMALLOC_INTERNAL_HASH_H + +#include "jemalloc/internal/assert.h" + +/* + * The following hash function is based on MurmurHash3, placed into the public + * domain by Austin Appleby. See https://github.com/aappleby/smhasher for + * details. + */ + +/******************************************************************************/ +/* Internal implementation. */ +static inline uint32_t +hash_rotl_32(uint32_t x, int8_t r) { + return ((x << r) | (x >> (32 - r))); +} + +static inline uint64_t +hash_rotl_64(uint64_t x, int8_t r) { + return ((x << r) | (x >> (64 - r))); +} + +static inline uint32_t +hash_get_block_32(const uint32_t *p, int i) { + /* Handle unaligned read. */ + if (unlikely((uintptr_t)p & (sizeof(uint32_t)-1)) != 0) { + uint32_t ret; + + memcpy(&ret, (uint8_t *)(p + i), sizeof(uint32_t)); + return ret; + } + + return p[i]; +} + +static inline uint64_t +hash_get_block_64(const uint64_t *p, int i) { + /* Handle unaligned read. */ + if (unlikely((uintptr_t)p & (sizeof(uint64_t)-1)) != 0) { + uint64_t ret; + + memcpy(&ret, (uint8_t *)(p + i), sizeof(uint64_t)); + return ret; + } + + return p[i]; +} + +static inline uint32_t +hash_fmix_32(uint32_t h) { + h ^= h >> 16; + h *= 0x85ebca6b; + h ^= h >> 13; + h *= 0xc2b2ae35; + h ^= h >> 16; + + return h; +} + +static inline uint64_t +hash_fmix_64(uint64_t k) { + k ^= k >> 33; + k *= KQU(0xff51afd7ed558ccd); + k ^= k >> 33; + k *= KQU(0xc4ceb9fe1a85ec53); + k ^= k >> 33; + + return k; +} + +static inline uint32_t +hash_x86_32(const void *key, int len, uint32_t seed) { + const uint8_t *data = (const uint8_t *) key; + const int nblocks = len / 4; + + uint32_t h1 = seed; + + const uint32_t c1 = 0xcc9e2d51; + const uint32_t c2 = 0x1b873593; + + /* body */ + { + const uint32_t *blocks = (const uint32_t *) (data + nblocks*4); + int i; + + for (i = -nblocks; i; i++) { + uint32_t k1 = hash_get_block_32(blocks, i); + + k1 *= c1; + k1 = hash_rotl_32(k1, 15); + k1 *= c2; + + h1 ^= k1; + h1 = hash_rotl_32(h1, 13); + h1 = h1*5 + 0xe6546b64; + } + } + + /* tail */ + { + const uint8_t *tail = (const uint8_t *) (data + nblocks*4); + + uint32_t k1 = 0; + + switch (len & 3) { + case 3: k1 ^= tail[2] << 16; JEMALLOC_FALLTHROUGH; + case 2: k1 ^= tail[1] << 8; JEMALLOC_FALLTHROUGH; + case 1: k1 ^= tail[0]; k1 *= c1; k1 = hash_rotl_32(k1, 15); + k1 *= c2; h1 ^= k1; + } + } + + /* finalization */ + h1 ^= len; + + h1 = hash_fmix_32(h1); + + return h1; +} + +static inline void +hash_x86_128(const void *key, const int len, uint32_t seed, + uint64_t r_out[2]) { + const uint8_t * data = (const uint8_t *) key; + const int nblocks = len / 16; + + uint32_t h1 = seed; + uint32_t h2 = seed; + uint32_t h3 = seed; + uint32_t h4 = seed; + + const uint32_t c1 = 0x239b961b; + const uint32_t c2 = 0xab0e9789; + const uint32_t c3 = 0x38b34ae5; + const uint32_t c4 = 0xa1e38b93; + + /* body */ + { + const uint32_t *blocks = (const uint32_t *) (data + nblocks*16); + int i; + + for (i = -nblocks; i; i++) { + uint32_t k1 = hash_get_block_32(blocks, i*4 + 0); + uint32_t k2 = hash_get_block_32(blocks, i*4 + 1); + uint32_t k3 = hash_get_block_32(blocks, i*4 + 2); + uint32_t k4 = hash_get_block_32(blocks, i*4 + 3); + + k1 *= c1; k1 = hash_rotl_32(k1, 15); k1 *= c2; h1 ^= k1; + + h1 = hash_rotl_32(h1, 19); h1 += h2; + h1 = h1*5 + 0x561ccd1b; + + k2 *= c2; k2 = hash_rotl_32(k2, 16); k2 *= c3; h2 ^= k2; + + h2 = hash_rotl_32(h2, 17); h2 += h3; + h2 = h2*5 + 0x0bcaa747; + + k3 *= c3; k3 = hash_rotl_32(k3, 17); k3 *= c4; h3 ^= k3; + + h3 = hash_rotl_32(h3, 15); h3 += h4; + h3 = h3*5 + 0x96cd1c35; + + k4 *= c4; k4 = hash_rotl_32(k4, 18); k4 *= c1; h4 ^= k4; + + h4 = hash_rotl_32(h4, 13); h4 += h1; + h4 = h4*5 + 0x32ac3b17; + } + } + + /* tail */ + { + const uint8_t *tail = (const uint8_t *) (data + nblocks*16); + uint32_t k1 = 0; + uint32_t k2 = 0; + uint32_t k3 = 0; + uint32_t k4 = 0; + + switch (len & 15) { + case 15: k4 ^= tail[14] << 16; JEMALLOC_FALLTHROUGH; + case 14: k4 ^= tail[13] << 8; JEMALLOC_FALLTHROUGH; + case 13: k4 ^= tail[12] << 0; + k4 *= c4; k4 = hash_rotl_32(k4, 18); k4 *= c1; h4 ^= k4; + JEMALLOC_FALLTHROUGH; + case 12: k3 ^= (uint32_t) tail[11] << 24; JEMALLOC_FALLTHROUGH; + case 11: k3 ^= tail[10] << 16; JEMALLOC_FALLTHROUGH; + case 10: k3 ^= tail[ 9] << 8; JEMALLOC_FALLTHROUGH; + case 9: k3 ^= tail[ 8] << 0; + k3 *= c3; k3 = hash_rotl_32(k3, 17); k3 *= c4; h3 ^= k3; + JEMALLOC_FALLTHROUGH; + case 8: k2 ^= (uint32_t) tail[ 7] << 24; JEMALLOC_FALLTHROUGH; + case 7: k2 ^= tail[ 6] << 16; JEMALLOC_FALLTHROUGH; + case 6: k2 ^= tail[ 5] << 8; JEMALLOC_FALLTHROUGH; + case 5: k2 ^= tail[ 4] << 0; + k2 *= c2; k2 = hash_rotl_32(k2, 16); k2 *= c3; h2 ^= k2; + JEMALLOC_FALLTHROUGH; + case 4: k1 ^= (uint32_t) tail[ 3] << 24; JEMALLOC_FALLTHROUGH; + case 3: k1 ^= tail[ 2] << 16; JEMALLOC_FALLTHROUGH; + case 2: k1 ^= tail[ 1] << 8; JEMALLOC_FALLTHROUGH; + case 1: k1 ^= tail[ 0] << 0; + k1 *= c1; k1 = hash_rotl_32(k1, 15); k1 *= c2; h1 ^= k1; + break; + } + } + + /* finalization */ + h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len; + + h1 += h2; h1 += h3; h1 += h4; + h2 += h1; h3 += h1; h4 += h1; + + h1 = hash_fmix_32(h1); + h2 = hash_fmix_32(h2); + h3 = hash_fmix_32(h3); + h4 = hash_fmix_32(h4); + + h1 += h2; h1 += h3; h1 += h4; + h2 += h1; h3 += h1; h4 += h1; + + r_out[0] = (((uint64_t) h2) << 32) | h1; + r_out[1] = (((uint64_t) h4) << 32) | h3; +} + +static inline void +hash_x64_128(const void *key, const int len, const uint32_t seed, + uint64_t r_out[2]) { + const uint8_t *data = (const uint8_t *) key; + const int nblocks = len / 16; + + uint64_t h1 = seed; + uint64_t h2 = seed; + + const uint64_t c1 = KQU(0x87c37b91114253d5); + const uint64_t c2 = KQU(0x4cf5ad432745937f); + + /* body */ + { + const uint64_t *blocks = (const uint64_t *) (data); + int i; + + for (i = 0; i < nblocks; i++) { + uint64_t k1 = hash_get_block_64(blocks, i*2 + 0); + uint64_t k2 = hash_get_block_64(blocks, i*2 + 1); + + k1 *= c1; k1 = hash_rotl_64(k1, 31); k1 *= c2; h1 ^= k1; + + h1 = hash_rotl_64(h1, 27); h1 += h2; + h1 = h1*5 + 0x52dce729; + + k2 *= c2; k2 = hash_rotl_64(k2, 33); k2 *= c1; h2 ^= k2; + + h2 = hash_rotl_64(h2, 31); h2 += h1; + h2 = h2*5 + 0x38495ab5; + } + } + + /* tail */ + { + const uint8_t *tail = (const uint8_t*)(data + nblocks*16); + uint64_t k1 = 0; + uint64_t k2 = 0; + + switch (len & 15) { + case 15: k2 ^= ((uint64_t)(tail[14])) << 48; JEMALLOC_FALLTHROUGH; + case 14: k2 ^= ((uint64_t)(tail[13])) << 40; JEMALLOC_FALLTHROUGH; + case 13: k2 ^= ((uint64_t)(tail[12])) << 32; JEMALLOC_FALLTHROUGH; + case 12: k2 ^= ((uint64_t)(tail[11])) << 24; JEMALLOC_FALLTHROUGH; + case 11: k2 ^= ((uint64_t)(tail[10])) << 16; JEMALLOC_FALLTHROUGH; + case 10: k2 ^= ((uint64_t)(tail[ 9])) << 8; JEMALLOC_FALLTHROUGH; + case 9: k2 ^= ((uint64_t)(tail[ 8])) << 0; + k2 *= c2; k2 = hash_rotl_64(k2, 33); k2 *= c1; h2 ^= k2; + JEMALLOC_FALLTHROUGH; + case 8: k1 ^= ((uint64_t)(tail[ 7])) << 56; JEMALLOC_FALLTHROUGH; + case 7: k1 ^= ((uint64_t)(tail[ 6])) << 48; JEMALLOC_FALLTHROUGH; + case 6: k1 ^= ((uint64_t)(tail[ 5])) << 40; JEMALLOC_FALLTHROUGH; + case 5: k1 ^= ((uint64_t)(tail[ 4])) << 32; JEMALLOC_FALLTHROUGH; + case 4: k1 ^= ((uint64_t)(tail[ 3])) << 24; JEMALLOC_FALLTHROUGH; + case 3: k1 ^= ((uint64_t)(tail[ 2])) << 16; JEMALLOC_FALLTHROUGH; + case 2: k1 ^= ((uint64_t)(tail[ 1])) << 8; JEMALLOC_FALLTHROUGH; + case 1: k1 ^= ((uint64_t)(tail[ 0])) << 0; + k1 *= c1; k1 = hash_rotl_64(k1, 31); k1 *= c2; h1 ^= k1; + break; + } + } + + /* finalization */ + h1 ^= len; h2 ^= len; + + h1 += h2; + h2 += h1; + + h1 = hash_fmix_64(h1); + h2 = hash_fmix_64(h2); + + h1 += h2; + h2 += h1; + + r_out[0] = h1; + r_out[1] = h2; +} + +/******************************************************************************/ +/* API. */ +static inline void +hash(const void *key, size_t len, const uint32_t seed, size_t r_hash[2]) { + assert(len <= INT_MAX); /* Unfortunate implementation limitation. */ + +#if (LG_SIZEOF_PTR == 3 && !defined(JEMALLOC_BIG_ENDIAN)) + hash_x64_128(key, (int)len, seed, (uint64_t *)r_hash); +#else + { + uint64_t hashes[2]; + hash_x86_128(key, (int)len, seed, hashes); + r_hash[0] = (size_t)hashes[0]; + r_hash[1] = (size_t)hashes[1]; + } +#endif +} + +#endif /* JEMALLOC_INTERNAL_HASH_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/hook.h b/deps/jemalloc/include/jemalloc/internal/hook.h new file mode 100644 index 0000000..ee246b1 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/hook.h @@ -0,0 +1,163 @@ +#ifndef JEMALLOC_INTERNAL_HOOK_H +#define JEMALLOC_INTERNAL_HOOK_H + +#include "jemalloc/internal/tsd.h" + +/* + * This API is *extremely* experimental, and may get ripped out, changed in API- + * and ABI-incompatible ways, be insufficiently or incorrectly documented, etc. + * + * It allows hooking the stateful parts of the API to see changes as they + * happen. + * + * Allocation hooks are called after the allocation is done, free hooks are + * called before the free is done, and expand hooks are called after the + * allocation is expanded. + * + * For realloc and rallocx, if the expansion happens in place, the expansion + * hook is called. If it is moved, then the alloc hook is called on the new + * location, and then the free hook is called on the old location (i.e. both + * hooks are invoked in between the alloc and the dalloc). + * + * If we return NULL from OOM, then usize might not be trustworthy. Calling + * realloc(NULL, size) only calls the alloc hook, and calling realloc(ptr, 0) + * only calls the free hook. (Calling realloc(NULL, 0) is treated as malloc(0), + * and only calls the alloc hook). + * + * Reentrancy: + * Reentrancy is guarded against from within the hook implementation. If you + * call allocator functions from within a hook, the hooks will not be invoked + * again. + * Threading: + * The installation of a hook synchronizes with all its uses. If you can + * prove the installation of a hook happens-before a jemalloc entry point, + * then the hook will get invoked (unless there's a racing removal). + * + * Hook insertion appears to be atomic at a per-thread level (i.e. if a thread + * allocates and has the alloc hook invoked, then a subsequent free on the + * same thread will also have the free hook invoked). + * + * The *removal* of a hook does *not* block until all threads are done with + * the hook. Hook authors have to be resilient to this, and need some + * out-of-band mechanism for cleaning up any dynamically allocated memory + * associated with their hook. + * Ordering: + * Order of hook execution is unspecified, and may be different than insertion + * order. + */ + +#define HOOK_MAX 4 + +enum hook_alloc_e { + hook_alloc_malloc, + hook_alloc_posix_memalign, + hook_alloc_aligned_alloc, + hook_alloc_calloc, + hook_alloc_memalign, + hook_alloc_valloc, + hook_alloc_mallocx, + + /* The reallocating functions have both alloc and dalloc variants */ + hook_alloc_realloc, + hook_alloc_rallocx, +}; +/* + * We put the enum typedef after the enum, since this file may get included by + * jemalloc_cpp.cpp, and C++ disallows enum forward declarations. + */ +typedef enum hook_alloc_e hook_alloc_t; + +enum hook_dalloc_e { + hook_dalloc_free, + hook_dalloc_dallocx, + hook_dalloc_sdallocx, + + /* + * The dalloc halves of reallocation (not called if in-place expansion + * happens). + */ + hook_dalloc_realloc, + hook_dalloc_rallocx, +}; +typedef enum hook_dalloc_e hook_dalloc_t; + + +enum hook_expand_e { + hook_expand_realloc, + hook_expand_rallocx, + hook_expand_xallocx, +}; +typedef enum hook_expand_e hook_expand_t; + +typedef void (*hook_alloc)( + void *extra, hook_alloc_t type, void *result, uintptr_t result_raw, + uintptr_t args_raw[3]); + +typedef void (*hook_dalloc)( + void *extra, hook_dalloc_t type, void *address, uintptr_t args_raw[3]); + +typedef void (*hook_expand)( + void *extra, hook_expand_t type, void *address, size_t old_usize, + size_t new_usize, uintptr_t result_raw, uintptr_t args_raw[4]); + +typedef struct hooks_s hooks_t; +struct hooks_s { + hook_alloc alloc_hook; + hook_dalloc dalloc_hook; + hook_expand expand_hook; + void *extra; +}; + +/* + * Begin implementation details; everything above this point might one day live + * in a public API. Everything below this point never will. + */ + +/* + * The realloc pathways haven't gotten any refactoring love in a while, and it's + * fairly difficult to pass information from the entry point to the hooks. We + * put the informaiton the hooks will need into a struct to encapsulate + * everything. + * + * Much of these pathways are force-inlined, so that the compiler can avoid + * materializing this struct until we hit an extern arena function. For fairly + * goofy reasons, *many* of the realloc paths hit an extern arena function. + * These paths are cold enough that it doesn't matter; eventually, we should + * rewrite the realloc code to make the expand-in-place and the + * free-then-realloc paths more orthogonal, at which point we don't need to + * spread the hook logic all over the place. + */ +typedef struct hook_ralloc_args_s hook_ralloc_args_t; +struct hook_ralloc_args_s { + /* I.e. as opposed to rallocx. */ + bool is_realloc; + /* + * The expand hook takes 4 arguments, even if only 3 are actually used; + * we add an extra one in case the user decides to memcpy without + * looking too closely at the hooked function. + */ + uintptr_t args[4]; +}; + +/* + * Returns an opaque handle to be used when removing the hook. NULL means that + * we couldn't install the hook. + */ +bool hook_boot(); + +void *hook_install(tsdn_t *tsdn, hooks_t *hooks); +/* Uninstalls the hook with the handle previously returned from hook_install. */ +void hook_remove(tsdn_t *tsdn, void *opaque); + +/* Hooks */ + +void hook_invoke_alloc(hook_alloc_t type, void *result, uintptr_t result_raw, + uintptr_t args_raw[3]); + +void hook_invoke_dalloc(hook_dalloc_t type, void *address, + uintptr_t args_raw[3]); + +void hook_invoke_expand(hook_expand_t type, void *address, size_t old_usize, + size_t new_usize, uintptr_t result_raw, uintptr_t args_raw[4]); + +#endif /* JEMALLOC_INTERNAL_HOOK_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/hpa.h b/deps/jemalloc/include/jemalloc/internal/hpa.h new file mode 100644 index 0000000..f356285 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/hpa.h @@ -0,0 +1,182 @@ +#ifndef JEMALLOC_INTERNAL_HPA_H +#define JEMALLOC_INTERNAL_HPA_H + +#include "jemalloc/internal/exp_grow.h" +#include "jemalloc/internal/hpa_hooks.h" +#include "jemalloc/internal/hpa_opts.h" +#include "jemalloc/internal/pai.h" +#include "jemalloc/internal/psset.h" + +typedef struct hpa_central_s hpa_central_t; +struct hpa_central_s { + /* + * The mutex guarding most of the operations on the central data + * structure. + */ + malloc_mutex_t mtx; + /* + * Guards expansion of eden. We separate this from the regular mutex so + * that cheaper operations can still continue while we're doing the OS + * call. + */ + malloc_mutex_t grow_mtx; + /* + * Either NULL (if empty), or some integer multiple of a + * hugepage-aligned number of hugepages. We carve them off one at a + * time to satisfy new pageslab requests. + * + * Guarded by grow_mtx. + */ + void *eden; + size_t eden_len; + /* Source for metadata. */ + base_t *base; + /* Number of grow operations done on this hpa_central_t. */ + uint64_t age_counter; + + /* The HPA hooks. */ + hpa_hooks_t hooks; +}; + +typedef struct hpa_shard_nonderived_stats_s hpa_shard_nonderived_stats_t; +struct hpa_shard_nonderived_stats_s { + /* + * The number of times we've purged within a hugepage. + * + * Guarded by mtx. + */ + uint64_t npurge_passes; + /* + * The number of individual purge calls we perform (which should always + * be bigger than npurge_passes, since each pass purges at least one + * extent within a hugepage. + * + * Guarded by mtx. + */ + uint64_t npurges; + + /* + * The number of times we've hugified a pageslab. + * + * Guarded by mtx. + */ + uint64_t nhugifies; + /* + * The number of times we've dehugified a pageslab. + * + * Guarded by mtx. + */ + uint64_t ndehugifies; +}; + +/* Completely derived; only used by CTL. */ +typedef struct hpa_shard_stats_s hpa_shard_stats_t; +struct hpa_shard_stats_s { + psset_stats_t psset_stats; + hpa_shard_nonderived_stats_t nonderived_stats; +}; + +typedef struct hpa_shard_s hpa_shard_t; +struct hpa_shard_s { + /* + * pai must be the first member; we cast from a pointer to it to a + * pointer to the hpa_shard_t. + */ + pai_t pai; + + /* The central allocator we get our hugepages from. */ + hpa_central_t *central; + /* Protects most of this shard's state. */ + malloc_mutex_t mtx; + /* + * Guards the shard's access to the central allocator (preventing + * multiple threads operating on this shard from accessing the central + * allocator). + */ + malloc_mutex_t grow_mtx; + /* The base metadata allocator. */ + base_t *base; + + /* + * This edata cache is the one we use when allocating a small extent + * from a pageslab. The pageslab itself comes from the centralized + * allocator, and so will use its edata_cache. + */ + edata_cache_fast_t ecf; + + psset_t psset; + + /* + * How many grow operations have occurred. + * + * Guarded by grow_mtx. + */ + uint64_t age_counter; + + /* The arena ind we're associated with. */ + unsigned ind; + + /* + * Our emap. This is just a cache of the emap pointer in the associated + * hpa_central. + */ + emap_t *emap; + + /* The configuration choices for this hpa shard. */ + hpa_shard_opts_t opts; + + /* + * How many pages have we started but not yet finished purging in this + * hpa shard. + */ + size_t npending_purge; + + /* + * Those stats which are copied directly into the CTL-centric hpa shard + * stats. + */ + hpa_shard_nonderived_stats_t stats; + + /* + * Last time we performed purge on this shard. + */ + nstime_t last_purge; +}; + +/* + * Whether or not the HPA can be used given the current configuration. This is + * is not necessarily a guarantee that it backs its allocations by hugepages, + * just that it can function properly given the system it's running on. + */ +bool hpa_supported(); +bool hpa_central_init(hpa_central_t *central, base_t *base, const hpa_hooks_t *hooks); +bool hpa_shard_init(hpa_shard_t *shard, hpa_central_t *central, emap_t *emap, + base_t *base, edata_cache_t *edata_cache, unsigned ind, + const hpa_shard_opts_t *opts); + +void hpa_shard_stats_accum(hpa_shard_stats_t *dst, hpa_shard_stats_t *src); +void hpa_shard_stats_merge(tsdn_t *tsdn, hpa_shard_t *shard, + hpa_shard_stats_t *dst); + +/* + * Notify the shard that we won't use it for allocations much longer. Due to + * the possibility of races, we don't actually prevent allocations; just flush + * and disable the embedded edata_cache_small. + */ +void hpa_shard_disable(tsdn_t *tsdn, hpa_shard_t *shard); +void hpa_shard_destroy(tsdn_t *tsdn, hpa_shard_t *shard); + +void hpa_shard_set_deferral_allowed(tsdn_t *tsdn, hpa_shard_t *shard, + bool deferral_allowed); +void hpa_shard_do_deferred_work(tsdn_t *tsdn, hpa_shard_t *shard); + +/* + * We share the fork ordering with the PA and arena prefork handling; that's why + * these are 3 and 4 rather than 0 and 1. + */ +void hpa_shard_prefork3(tsdn_t *tsdn, hpa_shard_t *shard); +void hpa_shard_prefork4(tsdn_t *tsdn, hpa_shard_t *shard); +void hpa_shard_postfork_parent(tsdn_t *tsdn, hpa_shard_t *shard); +void hpa_shard_postfork_child(tsdn_t *tsdn, hpa_shard_t *shard); + +#endif /* JEMALLOC_INTERNAL_HPA_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/hpa_hooks.h b/deps/jemalloc/include/jemalloc/internal/hpa_hooks.h new file mode 100644 index 0000000..4ea221c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/hpa_hooks.h @@ -0,0 +1,17 @@ +#ifndef JEMALLOC_INTERNAL_HPA_HOOKS_H +#define JEMALLOC_INTERNAL_HPA_HOOKS_H + +typedef struct hpa_hooks_s hpa_hooks_t; +struct hpa_hooks_s { + void *(*map)(size_t size); + void (*unmap)(void *ptr, size_t size); + void (*purge)(void *ptr, size_t size); + void (*hugify)(void *ptr, size_t size); + void (*dehugify)(void *ptr, size_t size); + void (*curtime)(nstime_t *r_time, bool first_reading); + uint64_t (*ms_since)(nstime_t *r_time); +}; + +extern hpa_hooks_t hpa_hooks_default; + +#endif /* JEMALLOC_INTERNAL_HPA_HOOKS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/hpa_opts.h b/deps/jemalloc/include/jemalloc/internal/hpa_opts.h new file mode 100644 index 0000000..ee84fea --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/hpa_opts.h @@ -0,0 +1,74 @@ +#ifndef JEMALLOC_INTERNAL_HPA_OPTS_H +#define JEMALLOC_INTERNAL_HPA_OPTS_H + +#include "jemalloc/internal/fxp.h" + +/* + * This file is morally part of hpa.h, but is split out for header-ordering + * reasons. + */ + +typedef struct hpa_shard_opts_s hpa_shard_opts_t; +struct hpa_shard_opts_s { + /* + * The largest size we'll allocate out of the shard. For those + * allocations refused, the caller (in practice, the PA module) will + * fall back to the more general (for now) PAC, which can always handle + * any allocation request. + */ + size_t slab_max_alloc; + + /* + * When the number of active bytes in a hugepage is >= + * hugification_threshold, we force hugify it. + */ + size_t hugification_threshold; + + /* + * The HPA purges whenever the number of pages exceeds dirty_mult * + * active_pages. This may be set to (fxp_t)-1 to disable purging. + */ + fxp_t dirty_mult; + + /* + * Whether or not the PAI methods are allowed to defer work to a + * subsequent hpa_shard_do_deferred_work() call. Practically, this + * corresponds to background threads being enabled. We track this + * ourselves for encapsulation purposes. + */ + bool deferral_allowed; + + /* + * How long a hugepage has to be a hugification candidate before it will + * actually get hugified. + */ + uint64_t hugify_delay_ms; + + /* + * Minimum amount of time between purges. + */ + uint64_t min_purge_interval_ms; +}; + +#define HPA_SHARD_OPTS_DEFAULT { \ + /* slab_max_alloc */ \ + 64 * 1024, \ + /* hugification_threshold */ \ + HUGEPAGE * 95 / 100, \ + /* dirty_mult */ \ + FXP_INIT_PERCENT(25), \ + /* \ + * deferral_allowed \ + * \ + * Really, this is always set by the arena during creation \ + * or by an hpa_shard_set_deferral_allowed call, so the value \ + * we put here doesn't matter. \ + */ \ + false, \ + /* hugify_delay_ms */ \ + 10 * 1000, \ + /* min_purge_interval_ms */ \ + 5 * 1000 \ +} + +#endif /* JEMALLOC_INTERNAL_HPA_OPTS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/hpdata.h b/deps/jemalloc/include/jemalloc/internal/hpdata.h new file mode 100644 index 0000000..1fb534d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/hpdata.h @@ -0,0 +1,413 @@ +#ifndef JEMALLOC_INTERNAL_HPDATA_H +#define JEMALLOC_INTERNAL_HPDATA_H + +#include "jemalloc/internal/fb.h" +#include "jemalloc/internal/ph.h" +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/typed_list.h" + +/* + * The metadata representation we use for extents in hugepages. While the PAC + * uses the edata_t to represent both active and inactive extents, the HP only + * uses the edata_t for active ones; instead, inactive extent state is tracked + * within hpdata associated with the enclosing hugepage-sized, hugepage-aligned + * region of virtual address space. + * + * An hpdata need not be "truly" backed by a hugepage (which is not necessarily + * an observable property of any given region of address space). It's just + * hugepage-sized and hugepage-aligned; it's *potentially* huge. + */ +typedef struct hpdata_s hpdata_t; +ph_structs(hpdata_age_heap, hpdata_t); +struct hpdata_s { + /* + * We likewise follow the edata convention of mangling names and forcing + * the use of accessors -- this lets us add some consistency checks on + * access. + */ + + /* + * The address of the hugepage in question. This can't be named h_addr, + * since that conflicts with a macro defined in Windows headers. + */ + void *h_address; + /* Its age (measured in psset operations). */ + uint64_t h_age; + /* Whether or not we think the hugepage is mapped that way by the OS. */ + bool h_huge; + + /* + * For some properties, we keep parallel sets of bools; h_foo_allowed + * and h_in_psset_foo_container. This is a decoupling mechanism to + * avoid bothering the hpa (which manages policies) from the psset + * (which is the mechanism used to enforce those policies). This allows + * all the container management logic to live in one place, without the + * HPA needing to know or care how that happens. + */ + + /* + * Whether or not the hpdata is allowed to be used to serve allocations, + * and whether or not the psset is currently tracking it as such. + */ + bool h_alloc_allowed; + bool h_in_psset_alloc_container; + + /* + * The same, but with purging. There's no corresponding + * h_in_psset_purge_container, because the psset (currently) always + * removes hpdatas from their containers during updates (to implement + * LRU for purging). + */ + bool h_purge_allowed; + + /* And with hugifying. */ + bool h_hugify_allowed; + /* When we became a hugification candidate. */ + nstime_t h_time_hugify_allowed; + bool h_in_psset_hugify_container; + + /* Whether or not a purge or hugify is currently happening. */ + bool h_mid_purge; + bool h_mid_hugify; + + /* + * Whether or not the hpdata is being updated in the psset (i.e. if + * there has been a psset_update_begin call issued without a matching + * psset_update_end call). Eventually this will expand to other types + * of updates. + */ + bool h_updating; + + /* Whether or not the hpdata is in a psset. */ + bool h_in_psset; + + union { + /* When nonempty (and also nonfull), used by the psset bins. */ + hpdata_age_heap_link_t age_link; + /* + * When empty (or not corresponding to any hugepage), list + * linkage. + */ + ql_elm(hpdata_t) ql_link_empty; + }; + + /* + * Linkage for the psset to track candidates for purging and hugifying. + */ + ql_elm(hpdata_t) ql_link_purge; + ql_elm(hpdata_t) ql_link_hugify; + + /* The length of the largest contiguous sequence of inactive pages. */ + size_t h_longest_free_range; + + /* Number of active pages. */ + size_t h_nactive; + + /* A bitmap with bits set in the active pages. */ + fb_group_t active_pages[FB_NGROUPS(HUGEPAGE_PAGES)]; + + /* + * Number of dirty or active pages, and a bitmap tracking them. One + * way to think of this is as which pages are dirty from the OS's + * perspective. + */ + size_t h_ntouched; + + /* The touched pages (using the same definition as above). */ + fb_group_t touched_pages[FB_NGROUPS(HUGEPAGE_PAGES)]; +}; + +TYPED_LIST(hpdata_empty_list, hpdata_t, ql_link_empty) +TYPED_LIST(hpdata_purge_list, hpdata_t, ql_link_purge) +TYPED_LIST(hpdata_hugify_list, hpdata_t, ql_link_hugify) + +ph_proto(, hpdata_age_heap, hpdata_t); + +static inline void * +hpdata_addr_get(const hpdata_t *hpdata) { + return hpdata->h_address; +} + +static inline void +hpdata_addr_set(hpdata_t *hpdata, void *addr) { + assert(HUGEPAGE_ADDR2BASE(addr) == addr); + hpdata->h_address = addr; +} + +static inline uint64_t +hpdata_age_get(const hpdata_t *hpdata) { + return hpdata->h_age; +} + +static inline void +hpdata_age_set(hpdata_t *hpdata, uint64_t age) { + hpdata->h_age = age; +} + +static inline bool +hpdata_huge_get(const hpdata_t *hpdata) { + return hpdata->h_huge; +} + +static inline bool +hpdata_alloc_allowed_get(const hpdata_t *hpdata) { + return hpdata->h_alloc_allowed; +} + +static inline void +hpdata_alloc_allowed_set(hpdata_t *hpdata, bool alloc_allowed) { + hpdata->h_alloc_allowed = alloc_allowed; +} + +static inline bool +hpdata_in_psset_alloc_container_get(const hpdata_t *hpdata) { + return hpdata->h_in_psset_alloc_container; +} + +static inline void +hpdata_in_psset_alloc_container_set(hpdata_t *hpdata, bool in_container) { + assert(in_container != hpdata->h_in_psset_alloc_container); + hpdata->h_in_psset_alloc_container = in_container; +} + +static inline bool +hpdata_purge_allowed_get(const hpdata_t *hpdata) { + return hpdata->h_purge_allowed; +} + +static inline void +hpdata_purge_allowed_set(hpdata_t *hpdata, bool purge_allowed) { + assert(purge_allowed == false || !hpdata->h_mid_purge); + hpdata->h_purge_allowed = purge_allowed; +} + +static inline bool +hpdata_hugify_allowed_get(const hpdata_t *hpdata) { + return hpdata->h_hugify_allowed; +} + +static inline void +hpdata_allow_hugify(hpdata_t *hpdata, nstime_t now) { + assert(!hpdata->h_mid_hugify); + hpdata->h_hugify_allowed = true; + hpdata->h_time_hugify_allowed = now; +} + +static inline nstime_t +hpdata_time_hugify_allowed(hpdata_t *hpdata) { + return hpdata->h_time_hugify_allowed; +} + +static inline void +hpdata_disallow_hugify(hpdata_t *hpdata) { + hpdata->h_hugify_allowed = false; +} + +static inline bool +hpdata_in_psset_hugify_container_get(const hpdata_t *hpdata) { + return hpdata->h_in_psset_hugify_container; +} + +static inline void +hpdata_in_psset_hugify_container_set(hpdata_t *hpdata, bool in_container) { + assert(in_container != hpdata->h_in_psset_hugify_container); + hpdata->h_in_psset_hugify_container = in_container; +} + +static inline bool +hpdata_mid_purge_get(const hpdata_t *hpdata) { + return hpdata->h_mid_purge; +} + +static inline void +hpdata_mid_purge_set(hpdata_t *hpdata, bool mid_purge) { + assert(mid_purge != hpdata->h_mid_purge); + hpdata->h_mid_purge = mid_purge; +} + +static inline bool +hpdata_mid_hugify_get(const hpdata_t *hpdata) { + return hpdata->h_mid_hugify; +} + +static inline void +hpdata_mid_hugify_set(hpdata_t *hpdata, bool mid_hugify) { + assert(mid_hugify != hpdata->h_mid_hugify); + hpdata->h_mid_hugify = mid_hugify; +} + +static inline bool +hpdata_changing_state_get(const hpdata_t *hpdata) { + return hpdata->h_mid_purge || hpdata->h_mid_hugify; +} + + +static inline bool +hpdata_updating_get(const hpdata_t *hpdata) { + return hpdata->h_updating; +} + +static inline void +hpdata_updating_set(hpdata_t *hpdata, bool updating) { + assert(updating != hpdata->h_updating); + hpdata->h_updating = updating; +} + +static inline bool +hpdata_in_psset_get(const hpdata_t *hpdata) { + return hpdata->h_in_psset; +} + +static inline void +hpdata_in_psset_set(hpdata_t *hpdata, bool in_psset) { + assert(in_psset != hpdata->h_in_psset); + hpdata->h_in_psset = in_psset; +} + +static inline size_t +hpdata_longest_free_range_get(const hpdata_t *hpdata) { + return hpdata->h_longest_free_range; +} + +static inline void +hpdata_longest_free_range_set(hpdata_t *hpdata, size_t longest_free_range) { + assert(longest_free_range <= HUGEPAGE_PAGES); + hpdata->h_longest_free_range = longest_free_range; +} + +static inline size_t +hpdata_nactive_get(hpdata_t *hpdata) { + return hpdata->h_nactive; +} + +static inline size_t +hpdata_ntouched_get(hpdata_t *hpdata) { + return hpdata->h_ntouched; +} + +static inline size_t +hpdata_ndirty_get(hpdata_t *hpdata) { + return hpdata->h_ntouched - hpdata->h_nactive; +} + +static inline size_t +hpdata_nretained_get(hpdata_t *hpdata) { + return HUGEPAGE_PAGES - hpdata->h_ntouched; +} + +static inline void +hpdata_assert_empty(hpdata_t *hpdata) { + assert(fb_empty(hpdata->active_pages, HUGEPAGE_PAGES)); + assert(hpdata->h_nactive == 0); +} + +/* + * Only used in tests, and in hpdata_assert_consistent, below. Verifies some + * consistency properties of the hpdata (e.g. that cached counts of page stats + * match computed ones). + */ +static inline bool +hpdata_consistent(hpdata_t *hpdata) { + if(fb_urange_longest(hpdata->active_pages, HUGEPAGE_PAGES) + != hpdata_longest_free_range_get(hpdata)) { + return false; + } + if (fb_scount(hpdata->active_pages, HUGEPAGE_PAGES, 0, HUGEPAGE_PAGES) + != hpdata->h_nactive) { + return false; + } + if (fb_scount(hpdata->touched_pages, HUGEPAGE_PAGES, 0, HUGEPAGE_PAGES) + != hpdata->h_ntouched) { + return false; + } + if (hpdata->h_ntouched < hpdata->h_nactive) { + return false; + } + if (hpdata->h_huge && hpdata->h_ntouched != HUGEPAGE_PAGES) { + return false; + } + if (hpdata_changing_state_get(hpdata) + && ((hpdata->h_purge_allowed) || hpdata->h_hugify_allowed)) { + return false; + } + if (hpdata_hugify_allowed_get(hpdata) + != hpdata_in_psset_hugify_container_get(hpdata)) { + return false; + } + return true; +} + +static inline void +hpdata_assert_consistent(hpdata_t *hpdata) { + assert(hpdata_consistent(hpdata)); +} + +static inline bool +hpdata_empty(hpdata_t *hpdata) { + return hpdata->h_nactive == 0; +} + +static inline bool +hpdata_full(hpdata_t *hpdata) { + return hpdata->h_nactive == HUGEPAGE_PAGES; +} + +void hpdata_init(hpdata_t *hpdata, void *addr, uint64_t age); + +/* + * Given an hpdata which can serve an allocation request, pick and reserve an + * offset within that allocation. + */ +void *hpdata_reserve_alloc(hpdata_t *hpdata, size_t sz); +void hpdata_unreserve(hpdata_t *hpdata, void *begin, size_t sz); + +/* + * The hpdata_purge_prepare_t allows grabbing the metadata required to purge + * subranges of a hugepage while holding a lock, drop the lock during the actual + * purging of them, and reacquire it to update the metadata again. + */ +typedef struct hpdata_purge_state_s hpdata_purge_state_t; +struct hpdata_purge_state_s { + size_t npurged; + size_t ndirty_to_purge; + fb_group_t to_purge[FB_NGROUPS(HUGEPAGE_PAGES)]; + size_t next_purge_search_begin; +}; + +/* + * Initializes purge state. The access to hpdata must be externally + * synchronized with other hpdata_* calls. + * + * You can tell whether or not a thread is purging or hugifying a given hpdata + * via hpdata_changing_state_get(hpdata). Racing hugification or purging + * operations aren't allowed. + * + * Once you begin purging, you have to follow through and call hpdata_purge_next + * until you're done, and then end. Allocating out of an hpdata undergoing + * purging is not allowed. + * + * Returns the number of dirty pages that will be purged. + */ +size_t hpdata_purge_begin(hpdata_t *hpdata, hpdata_purge_state_t *purge_state); + +/* + * If there are more extents to purge, sets *r_purge_addr and *r_purge_size to + * true, and returns true. Otherwise, returns false to indicate that we're + * done. + * + * This requires exclusive access to the purge state, but *not* to the hpdata. + * In particular, unreserve calls are allowed while purging (i.e. you can dalloc + * into one part of the hpdata while purging a different part). + */ +bool hpdata_purge_next(hpdata_t *hpdata, hpdata_purge_state_t *purge_state, + void **r_purge_addr, size_t *r_purge_size); +/* + * Updates the hpdata metadata after all purging is done. Needs external + * synchronization. + */ +void hpdata_purge_end(hpdata_t *hpdata, hpdata_purge_state_t *purge_state); + +void hpdata_hugify(hpdata_t *hpdata); +void hpdata_dehugify(hpdata_t *hpdata); + +#endif /* JEMALLOC_INTERNAL_HPDATA_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/inspect.h b/deps/jemalloc/include/jemalloc/internal/inspect.h new file mode 100644 index 0000000..65fef51 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/inspect.h @@ -0,0 +1,40 @@ +#ifndef JEMALLOC_INTERNAL_INSPECT_H +#define JEMALLOC_INTERNAL_INSPECT_H + +/* + * This module contains the heap introspection capabilities. For now they are + * exposed purely through mallctl APIs in the experimental namespace, but this + * may change over time. + */ + +/* + * The following two structs are for experimental purposes. See + * experimental_utilization_query_ctl and + * experimental_utilization_batch_query_ctl in src/ctl.c. + */ +typedef struct inspect_extent_util_stats_s inspect_extent_util_stats_t; +struct inspect_extent_util_stats_s { + size_t nfree; + size_t nregs; + size_t size; +}; + +typedef struct inspect_extent_util_stats_verbose_s + inspect_extent_util_stats_verbose_t; + +struct inspect_extent_util_stats_verbose_s { + void *slabcur_addr; + size_t nfree; + size_t nregs; + size_t size; + size_t bin_nfree; + size_t bin_nregs; +}; + +void inspect_extent_util_stats_get(tsdn_t *tsdn, const void *ptr, + size_t *nfree, size_t *nregs, size_t *size); +void inspect_extent_util_stats_verbose_get(tsdn_t *tsdn, const void *ptr, + size_t *nfree, size_t *nregs, size_t *size, + size_t *bin_nfree, size_t *bin_nregs, void **slabcur_addr); + +#endif /* JEMALLOC_INTERNAL_INSPECT_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_decls.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_decls.h new file mode 100644 index 0000000..983027c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_decls.h @@ -0,0 +1,108 @@ +#ifndef JEMALLOC_INTERNAL_DECLS_H +#define JEMALLOC_INTERNAL_DECLS_H + +#include <math.h> +#ifdef _WIN32 +# include <windows.h> +# include "msvc_compat/windows_extra.h" +# include "msvc_compat/strings.h" +# ifdef _WIN64 +# if LG_VADDR <= 32 +# error Generate the headers using x64 vcargs +# endif +# else +# if LG_VADDR > 32 +# undef LG_VADDR +# define LG_VADDR 32 +# endif +# endif +#else +# include <sys/param.h> +# include <sys/mman.h> +# if !defined(__pnacl__) && !defined(__native_client__) +# include <sys/syscall.h> +# if !defined(SYS_write) && defined(__NR_write) +# define SYS_write __NR_write +# endif +# if defined(SYS_open) && defined(__aarch64__) + /* Android headers may define SYS_open to __NR_open even though + * __NR_open may not exist on AArch64 (superseded by __NR_openat). */ +# undef SYS_open +# endif +# include <sys/uio.h> +# endif +# include <pthread.h> +# if defined(__FreeBSD__) || defined(__DragonFly__) +# include <pthread_np.h> +# include <sched.h> +# if defined(__FreeBSD__) +# define cpu_set_t cpuset_t +# endif +# endif +# include <signal.h> +# ifdef JEMALLOC_OS_UNFAIR_LOCK +# include <os/lock.h> +# endif +# ifdef JEMALLOC_GLIBC_MALLOC_HOOK +# include <sched.h> +# endif +# include <errno.h> +# include <sys/time.h> +# include <time.h> +# ifdef JEMALLOC_HAVE_MACH_ABSOLUTE_TIME +# include <mach/mach_time.h> +# endif +#endif +#include <sys/types.h> + +#include <limits.h> +#ifndef SIZE_T_MAX +# define SIZE_T_MAX SIZE_MAX +#endif +#ifndef SSIZE_MAX +# define SSIZE_MAX ((ssize_t)(SIZE_T_MAX >> 1)) +#endif +#include <stdarg.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <stddef.h> +#ifndef offsetof +# define offsetof(type, member) ((size_t)&(((type *)NULL)->member)) +#endif +#include <string.h> +#include <strings.h> +#include <ctype.h> +#ifdef _MSC_VER +# include <io.h> +typedef intptr_t ssize_t; +# define PATH_MAX 1024 +# define STDERR_FILENO 2 +# define __func__ __FUNCTION__ +# ifdef JEMALLOC_HAS_RESTRICT +# define restrict __restrict +# endif +/* Disable warnings about deprecated system functions. */ +# pragma warning(disable: 4996) +#if _MSC_VER < 1800 +static int +isblank(int c) { + return (c == '\t' || c == ' '); +} +#endif +#else +# include <unistd.h> +#endif +#include <fcntl.h> + +/* + * The Win32 midl compiler has #define small char; we don't use midl, but + * "small" is a nice identifier to have available when talking about size + * classes. + */ +#ifdef small +# undef small +#endif + +#endif /* JEMALLOC_INTERNAL_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_defs.h.in b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_defs.h.in new file mode 100644 index 0000000..3588072 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_defs.h.in @@ -0,0 +1,427 @@ +#ifndef JEMALLOC_INTERNAL_DEFS_H_ +#define JEMALLOC_INTERNAL_DEFS_H_ +/* + * If JEMALLOC_PREFIX is defined via --with-jemalloc-prefix, it will cause all + * public APIs to be prefixed. This makes it possible, with some care, to use + * multiple allocators simultaneously. + */ +#undef JEMALLOC_PREFIX +#undef JEMALLOC_CPREFIX + +/* + * Define overrides for non-standard allocator-related functions if they are + * present on the system. + */ +#undef JEMALLOC_OVERRIDE___LIBC_CALLOC +#undef JEMALLOC_OVERRIDE___LIBC_FREE +#undef JEMALLOC_OVERRIDE___LIBC_MALLOC +#undef JEMALLOC_OVERRIDE___LIBC_MEMALIGN +#undef JEMALLOC_OVERRIDE___LIBC_REALLOC +#undef JEMALLOC_OVERRIDE___LIBC_VALLOC +#undef JEMALLOC_OVERRIDE___POSIX_MEMALIGN + +/* + * JEMALLOC_PRIVATE_NAMESPACE is used as a prefix for all library-private APIs. + * For shared libraries, symbol visibility mechanisms prevent these symbols + * from being exported, but for static libraries, naming collisions are a real + * possibility. + */ +#undef JEMALLOC_PRIVATE_NAMESPACE + +/* + * Hyper-threaded CPUs may need a special instruction inside spin loops in + * order to yield to another virtual CPU. + */ +#undef CPU_SPINWAIT +/* 1 if CPU_SPINWAIT is defined, 0 otherwise. */ +#undef HAVE_CPU_SPINWAIT + +/* + * Number of significant bits in virtual addresses. This may be less than the + * total number of bits in a pointer, e.g. on x64, for which the uppermost 16 + * bits are the same as bit 47. + */ +#undef LG_VADDR + +/* Defined if C11 atomics are available. */ +#undef JEMALLOC_C11_ATOMICS + +/* Defined if GCC __atomic atomics are available. */ +#undef JEMALLOC_GCC_ATOMIC_ATOMICS +/* and the 8-bit variant support. */ +#undef JEMALLOC_GCC_U8_ATOMIC_ATOMICS + +/* Defined if GCC __sync atomics are available. */ +#undef JEMALLOC_GCC_SYNC_ATOMICS +/* and the 8-bit variant support. */ +#undef JEMALLOC_GCC_U8_SYNC_ATOMICS + +/* + * Defined if __builtin_clz() and __builtin_clzl() are available. + */ +#undef JEMALLOC_HAVE_BUILTIN_CLZ + +/* + * Defined if os_unfair_lock_*() functions are available, as provided by Darwin. + */ +#undef JEMALLOC_OS_UNFAIR_LOCK + +/* Defined if syscall(2) is usable. */ +#undef JEMALLOC_USE_SYSCALL + +/* + * Defined if secure_getenv(3) is available. + */ +#undef JEMALLOC_HAVE_SECURE_GETENV + +/* + * Defined if issetugid(2) is available. + */ +#undef JEMALLOC_HAVE_ISSETUGID + +/* Defined if pthread_atfork(3) is available. */ +#undef JEMALLOC_HAVE_PTHREAD_ATFORK + +/* Defined if pthread_setname_np(3) is available. */ +#undef JEMALLOC_HAVE_PTHREAD_SETNAME_NP + +/* Defined if pthread_getname_np(3) is available. */ +#undef JEMALLOC_HAVE_PTHREAD_GETNAME_NP + +/* Defined if pthread_get_name_np(3) is available. */ +#undef JEMALLOC_HAVE_PTHREAD_GET_NAME_NP + +/* + * Defined if clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is available. + */ +#undef JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE + +/* + * Defined if clock_gettime(CLOCK_MONOTONIC, ...) is available. + */ +#undef JEMALLOC_HAVE_CLOCK_MONOTONIC + +/* + * Defined if mach_absolute_time() is available. + */ +#undef JEMALLOC_HAVE_MACH_ABSOLUTE_TIME + +/* + * Defined if clock_gettime(CLOCK_REALTIME, ...) is available. + */ +#undef JEMALLOC_HAVE_CLOCK_REALTIME + +/* + * Defined if _malloc_thread_cleanup() exists. At least in the case of + * FreeBSD, pthread_key_create() allocates, which if used during malloc + * bootstrapping will cause recursion into the pthreads library. Therefore, if + * _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in + * malloc_tsd. + */ +#undef JEMALLOC_MALLOC_THREAD_CLEANUP + +/* + * Defined if threaded initialization is known to be safe on this platform. + * Among other things, it must be possible to initialize a mutex without + * triggering allocation in order for threaded allocation to be safe. + */ +#undef JEMALLOC_THREADED_INIT + +/* + * Defined if the pthreads implementation defines + * _pthread_mutex_init_calloc_cb(), in which case the function is used in order + * to avoid recursive allocation during mutex initialization. + */ +#undef JEMALLOC_MUTEX_INIT_CB + +/* Non-empty if the tls_model attribute is supported. */ +#undef JEMALLOC_TLS_MODEL + +/* + * JEMALLOC_DEBUG enables assertions and other sanity checks, and disables + * inline functions. + */ +#undef JEMALLOC_DEBUG + +/* JEMALLOC_STATS enables statistics calculation. */ +#undef JEMALLOC_STATS + +/* JEMALLOC_EXPERIMENTAL_SMALLOCX_API enables experimental smallocx API. */ +#undef JEMALLOC_EXPERIMENTAL_SMALLOCX_API + +/* JEMALLOC_PROF enables allocation profiling. */ +#undef JEMALLOC_PROF + +/* Use libunwind for profile backtracing if defined. */ +#undef JEMALLOC_PROF_LIBUNWIND + +/* Use libgcc for profile backtracing if defined. */ +#undef JEMALLOC_PROF_LIBGCC + +/* Use gcc intrinsics for profile backtracing if defined. */ +#undef JEMALLOC_PROF_GCC + +/* + * JEMALLOC_DSS enables use of sbrk(2) to allocate extents from the data storage + * segment (DSS). + */ +#undef JEMALLOC_DSS + +/* Support memory filling (junk/zero). */ +#undef JEMALLOC_FILL + +/* Support utrace(2)-based tracing. */ +#undef JEMALLOC_UTRACE + +/* Support utrace(2)-based tracing (label based signature). */ +#undef JEMALLOC_UTRACE_LABEL + +/* Support optional abort() on OOM. */ +#undef JEMALLOC_XMALLOC + +/* Support lazy locking (avoid locking unless a second thread is launched). */ +#undef JEMALLOC_LAZY_LOCK + +/* + * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size + * classes). + */ +#undef LG_QUANTUM + +/* One page is 2^LG_PAGE bytes. */ +#undef LG_PAGE + +/* Maximum number of regions in a slab. */ +#undef CONFIG_LG_SLAB_MAXREGS + +/* + * One huge page is 2^LG_HUGEPAGE bytes. Note that this is defined even if the + * system does not explicitly support huge pages; system calls that require + * explicit huge page support are separately configured. + */ +#undef LG_HUGEPAGE + +/* + * If defined, adjacent virtual memory mappings with identical attributes + * automatically coalesce, and they fragment when changes are made to subranges. + * This is the normal order of things for mmap()/munmap(), but on Windows + * VirtualAlloc()/VirtualFree() operations must be precisely matched, i.e. + * mappings do *not* coalesce/fragment. + */ +#undef JEMALLOC_MAPS_COALESCE + +/* + * If defined, retain memory for later reuse by default rather than using e.g. + * munmap() to unmap freed extents. This is enabled on 64-bit Linux because + * common sequences of mmap()/munmap() calls will cause virtual memory map + * holes. + */ +#undef JEMALLOC_RETAIN + +/* TLS is used to map arenas and magazine caches to threads. */ +#undef JEMALLOC_TLS + +/* + * Used to mark unreachable code to quiet "end of non-void" compiler warnings. + * Don't use this directly; instead use unreachable() from util.h + */ +#undef JEMALLOC_INTERNAL_UNREACHABLE + +/* + * ffs*() functions to use for bitmapping. Don't use these directly; instead, + * use ffs_*() from util.h. + */ +#undef JEMALLOC_INTERNAL_FFSLL +#undef JEMALLOC_INTERNAL_FFSL +#undef JEMALLOC_INTERNAL_FFS + +/* + * popcount*() functions to use for bitmapping. + */ +#undef JEMALLOC_INTERNAL_POPCOUNTL +#undef JEMALLOC_INTERNAL_POPCOUNT + +/* + * If defined, explicitly attempt to more uniformly distribute large allocation + * pointer alignments across all cache indices. + */ +#undef JEMALLOC_CACHE_OBLIVIOUS + +/* + * If defined, enable logging facilities. We make this a configure option to + * avoid taking extra branches everywhere. + */ +#undef JEMALLOC_LOG + +/* + * If defined, use readlinkat() (instead of readlink()) to follow + * /etc/malloc_conf. + */ +#undef JEMALLOC_READLINKAT + +/* + * Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings. + */ +#undef JEMALLOC_ZONE + +/* + * Methods for determining whether the OS overcommits. + * JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY: Linux's + * /proc/sys/vm.overcommit_memory file. + * JEMALLOC_SYSCTL_VM_OVERCOMMIT: FreeBSD's vm.overcommit sysctl. + */ +#undef JEMALLOC_SYSCTL_VM_OVERCOMMIT +#undef JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY + +/* Defined if madvise(2) is available. */ +#undef JEMALLOC_HAVE_MADVISE + +/* + * Defined if transparent huge pages are supported via the MADV_[NO]HUGEPAGE + * arguments to madvise(2). + */ +#undef JEMALLOC_HAVE_MADVISE_HUGE + +/* + * Methods for purging unused pages differ between operating systems. + * + * madvise(..., MADV_FREE) : This marks pages as being unused, such that they + * will be discarded rather than swapped out. + * madvise(..., MADV_DONTNEED) : If JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS is + * defined, this immediately discards pages, + * such that new pages will be demand-zeroed if + * the address region is later touched; + * otherwise this behaves similarly to + * MADV_FREE, though typically with higher + * system overhead. + */ +#undef JEMALLOC_PURGE_MADVISE_FREE +#undef JEMALLOC_PURGE_MADVISE_DONTNEED +#undef JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS + +/* Defined if madvise(2) is available but MADV_FREE is not (x86 Linux only). */ +#undef JEMALLOC_DEFINE_MADVISE_FREE + +/* + * Defined if MADV_DO[NT]DUMP is supported as an argument to madvise. + */ +#undef JEMALLOC_MADVISE_DONTDUMP + +/* + * Defined if MADV_[NO]CORE is supported as an argument to madvise. + */ +#undef JEMALLOC_MADVISE_NOCORE + +/* Defined if mprotect(2) is available. */ +#undef JEMALLOC_HAVE_MPROTECT + +/* + * Defined if transparent huge pages (THPs) are supported via the + * MADV_[NO]HUGEPAGE arguments to madvise(2), and THP support is enabled. + */ +#undef JEMALLOC_THP + +/* Defined if posix_madvise is available. */ +#undef JEMALLOC_HAVE_POSIX_MADVISE + +/* + * Method for purging unused pages using posix_madvise. + * + * posix_madvise(..., POSIX_MADV_DONTNEED) + */ +#undef JEMALLOC_PURGE_POSIX_MADVISE_DONTNEED +#undef JEMALLOC_PURGE_POSIX_MADVISE_DONTNEED_ZEROS + +/* + * Defined if memcntl page admin call is supported + */ +#undef JEMALLOC_HAVE_MEMCNTL + +/* + * Defined if malloc_size is supported + */ +#undef JEMALLOC_HAVE_MALLOC_SIZE + +/* Define if operating system has alloca.h header. */ +#undef JEMALLOC_HAS_ALLOCA_H + +/* C99 restrict keyword supported. */ +#undef JEMALLOC_HAS_RESTRICT + +/* For use by hash code. */ +#undef JEMALLOC_BIG_ENDIAN + +/* sizeof(int) == 2^LG_SIZEOF_INT. */ +#undef LG_SIZEOF_INT + +/* sizeof(long) == 2^LG_SIZEOF_LONG. */ +#undef LG_SIZEOF_LONG + +/* sizeof(long long) == 2^LG_SIZEOF_LONG_LONG. */ +#undef LG_SIZEOF_LONG_LONG + +/* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */ +#undef LG_SIZEOF_INTMAX_T + +/* glibc malloc hooks (__malloc_hook, __realloc_hook, __free_hook). */ +#undef JEMALLOC_GLIBC_MALLOC_HOOK + +/* glibc memalign hook. */ +#undef JEMALLOC_GLIBC_MEMALIGN_HOOK + +/* pthread support */ +#undef JEMALLOC_HAVE_PTHREAD + +/* dlsym() support */ +#undef JEMALLOC_HAVE_DLSYM + +/* Adaptive mutex support in pthreads. */ +#undef JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP + +/* GNU specific sched_getcpu support */ +#undef JEMALLOC_HAVE_SCHED_GETCPU + +/* GNU specific sched_setaffinity support */ +#undef JEMALLOC_HAVE_SCHED_SETAFFINITY + +/* + * If defined, all the features necessary for background threads are present. + */ +#undef JEMALLOC_BACKGROUND_THREAD + +/* + * If defined, jemalloc symbols are not exported (doesn't work when + * JEMALLOC_PREFIX is not defined). + */ +#undef JEMALLOC_EXPORT + +/* config.malloc_conf options string. */ +#undef JEMALLOC_CONFIG_MALLOC_CONF + +/* If defined, jemalloc takes the malloc/free/etc. symbol names. */ +#undef JEMALLOC_IS_MALLOC + +/* + * Defined if strerror_r returns char * if _GNU_SOURCE is defined. + */ +#undef JEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE + +/* Performs additional safety checks when defined. */ +#undef JEMALLOC_OPT_SAFETY_CHECKS + +/* Is C++ support being built? */ +#undef JEMALLOC_ENABLE_CXX + +/* Performs additional size checks when defined. */ +#undef JEMALLOC_OPT_SIZE_CHECKS + +/* Allows sampled junk and stash for checking use-after-free when defined. */ +#undef JEMALLOC_UAF_DETECTION + +/* Darwin VM_MAKE_TAG support */ +#undef JEMALLOC_HAVE_VM_MAKE_TAG + +/* If defined, realloc(ptr, 0) defaults to "free" instead of "alloc". */ +#undef JEMALLOC_ZERO_REALLOC_DEFAULT_FREE + +#endif /* JEMALLOC_INTERNAL_DEFS_H_ */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_externs.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_externs.h new file mode 100644 index 0000000..fc834c6 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_externs.h @@ -0,0 +1,75 @@ +#ifndef JEMALLOC_INTERNAL_EXTERNS_H +#define JEMALLOC_INTERNAL_EXTERNS_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/hpa_opts.h" +#include "jemalloc/internal/sec_opts.h" +#include "jemalloc/internal/tsd_types.h" +#include "jemalloc/internal/nstime.h" + +/* TSD checks this to set thread local slow state accordingly. */ +extern bool malloc_slow; + +/* Run-time options. */ +extern bool opt_abort; +extern bool opt_abort_conf; +extern bool opt_trust_madvise; +extern bool opt_confirm_conf; +extern bool opt_hpa; +extern hpa_shard_opts_t opt_hpa_opts; +extern sec_opts_t opt_hpa_sec_opts; + +extern const char *opt_junk; +extern bool opt_junk_alloc; +extern bool opt_junk_free; +extern void (*junk_free_callback)(void *ptr, size_t size); +extern void (*junk_alloc_callback)(void *ptr, size_t size); +extern bool opt_utrace; +extern bool opt_xmalloc; +extern bool opt_experimental_infallible_new; +extern bool opt_zero; +extern unsigned opt_narenas; +extern zero_realloc_action_t opt_zero_realloc_action; +extern malloc_init_t malloc_init_state; +extern const char *zero_realloc_mode_names[]; +extern atomic_zu_t zero_realloc_count; +extern bool opt_cache_oblivious; + +/* Escape free-fastpath when ptr & mask == 0 (for sanitization purpose). */ +extern uintptr_t san_cache_bin_nonfast_mask; + +/* Number of CPUs. */ +extern unsigned ncpus; + +/* Number of arenas used for automatic multiplexing of threads and arenas. */ +extern unsigned narenas_auto; + +/* Base index for manual arenas. */ +extern unsigned manual_arena_base; + +/* + * Arenas that are used to service external requests. Not all elements of the + * arenas array are necessarily used; arenas are created lazily as needed. + */ +extern atomic_p_t arenas[]; + +void *a0malloc(size_t size); +void a0dalloc(void *ptr); +void *bootstrap_malloc(size_t size); +void *bootstrap_calloc(size_t num, size_t size); +void bootstrap_free(void *ptr); +void arena_set(unsigned ind, arena_t *arena); +unsigned narenas_total_get(void); +arena_t *arena_init(tsdn_t *tsdn, unsigned ind, const arena_config_t *config); +arena_t *arena_choose_hard(tsd_t *tsd, bool internal); +void arena_migrate(tsd_t *tsd, arena_t *oldarena, arena_t *newarena); +void iarena_cleanup(tsd_t *tsd); +void arena_cleanup(tsd_t *tsd); +size_t batch_alloc(void **ptrs, size_t num, size_t size, int flags); +void jemalloc_prefork(void); +void jemalloc_postfork_parent(void); +void jemalloc_postfork_child(void); +void je_sdallocx_noflags(void *ptr, size_t size); +void *malloc_default(size_t size); + +#endif /* JEMALLOC_INTERNAL_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_includes.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_includes.h new file mode 100644 index 0000000..751c112 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_includes.h @@ -0,0 +1,84 @@ +#ifndef JEMALLOC_INTERNAL_INCLUDES_H +#define JEMALLOC_INTERNAL_INCLUDES_H + +/* + * jemalloc can conceptually be broken into components (arena, tcache, etc.), + * but there are circular dependencies that cannot be broken without + * substantial performance degradation. + * + * Historically, we dealt with this by each header into four sections (types, + * structs, externs, and inlines), and included each header file multiple times + * in this file, picking out the portion we want on each pass using the + * following #defines: + * JEMALLOC_H_TYPES : Preprocessor-defined constants and pseudo-opaque data + * types. + * JEMALLOC_H_STRUCTS : Data structures. + * JEMALLOC_H_EXTERNS : Extern data declarations and function prototypes. + * JEMALLOC_H_INLINES : Inline functions. + * + * We're moving toward a world in which the dependencies are explicit; each file + * will #include the headers it depends on (rather than relying on them being + * implicitly available via this file including every header file in the + * project). + * + * We're now in an intermediate state: we've broken up the header files to avoid + * having to include each one multiple times, but have not yet moved the + * dependency information into the header files (i.e. we still rely on the + * ordering in this file to ensure all a header's dependencies are available in + * its translation unit). Each component is now broken up into multiple header + * files, corresponding to the sections above (e.g. instead of "foo.h", we now + * have "foo_types.h", "foo_structs.h", "foo_externs.h", "foo_inlines.h"). + * + * Those files which have been converted to explicitly include their + * inter-component dependencies are now in the initial HERMETIC HEADERS + * section. All headers may still rely on jemalloc_preamble.h (which, by fiat, + * must be included first in every translation unit) for system headers and + * global jemalloc definitions, however. + */ + +/******************************************************************************/ +/* TYPES */ +/******************************************************************************/ + +#include "jemalloc/internal/arena_types.h" +#include "jemalloc/internal/tcache_types.h" +#include "jemalloc/internal/prof_types.h" + +/******************************************************************************/ +/* STRUCTS */ +/******************************************************************************/ + +#include "jemalloc/internal/prof_structs.h" +#include "jemalloc/internal/arena_structs.h" +#include "jemalloc/internal/tcache_structs.h" +#include "jemalloc/internal/background_thread_structs.h" + +/******************************************************************************/ +/* EXTERNS */ +/******************************************************************************/ + +#include "jemalloc/internal/jemalloc_internal_externs.h" +#include "jemalloc/internal/arena_externs.h" +#include "jemalloc/internal/large_externs.h" +#include "jemalloc/internal/tcache_externs.h" +#include "jemalloc/internal/prof_externs.h" +#include "jemalloc/internal/background_thread_externs.h" + +/******************************************************************************/ +/* INLINES */ +/******************************************************************************/ + +#include "jemalloc/internal/jemalloc_internal_inlines_a.h" +/* + * Include portions of arena code interleaved with tcache code in order to + * resolve circular dependencies. + */ +#include "jemalloc/internal/arena_inlines_a.h" +#include "jemalloc/internal/jemalloc_internal_inlines_b.h" +#include "jemalloc/internal/tcache_inlines.h" +#include "jemalloc/internal/arena_inlines_b.h" +#include "jemalloc/internal/jemalloc_internal_inlines_c.h" +#include "jemalloc/internal/prof_inlines.h" +#include "jemalloc/internal/background_thread_inlines.h" + +#endif /* JEMALLOC_INTERNAL_INCLUDES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_a.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_a.h new file mode 100644 index 0000000..9e27cc3 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_a.h @@ -0,0 +1,122 @@ +#ifndef JEMALLOC_INTERNAL_INLINES_A_H +#define JEMALLOC_INTERNAL_INLINES_A_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/bit_util.h" +#include "jemalloc/internal/jemalloc_internal_types.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/ticker.h" + +JEMALLOC_ALWAYS_INLINE malloc_cpuid_t +malloc_getcpu(void) { + assert(have_percpu_arena); +#if defined(_WIN32) + return GetCurrentProcessorNumber(); +#elif defined(JEMALLOC_HAVE_SCHED_GETCPU) + return (malloc_cpuid_t)sched_getcpu(); +#else + not_reached(); + return -1; +#endif +} + +/* Return the chosen arena index based on current cpu. */ +JEMALLOC_ALWAYS_INLINE unsigned +percpu_arena_choose(void) { + assert(have_percpu_arena && PERCPU_ARENA_ENABLED(opt_percpu_arena)); + + malloc_cpuid_t cpuid = malloc_getcpu(); + assert(cpuid >= 0); + + unsigned arena_ind; + if ((opt_percpu_arena == percpu_arena) || ((unsigned)cpuid < ncpus / + 2)) { + arena_ind = cpuid; + } else { + assert(opt_percpu_arena == per_phycpu_arena); + /* Hyper threads on the same physical CPU share arena. */ + arena_ind = cpuid - ncpus / 2; + } + + return arena_ind; +} + +/* Return the limit of percpu auto arena range, i.e. arenas[0...ind_limit). */ +JEMALLOC_ALWAYS_INLINE unsigned +percpu_arena_ind_limit(percpu_arena_mode_t mode) { + assert(have_percpu_arena && PERCPU_ARENA_ENABLED(mode)); + if (mode == per_phycpu_arena && ncpus > 1) { + if (ncpus % 2) { + /* This likely means a misconfig. */ + return ncpus / 2 + 1; + } + return ncpus / 2; + } else { + return ncpus; + } +} + +static inline arena_t * +arena_get(tsdn_t *tsdn, unsigned ind, bool init_if_missing) { + arena_t *ret; + + assert(ind < MALLOCX_ARENA_LIMIT); + + ret = (arena_t *)atomic_load_p(&arenas[ind], ATOMIC_ACQUIRE); + if (unlikely(ret == NULL)) { + if (init_if_missing) { + ret = arena_init(tsdn, ind, &arena_config_default); + } + } + return ret; +} + +JEMALLOC_ALWAYS_INLINE bool +tcache_available(tsd_t *tsd) { + /* + * Thread specific auto tcache might be unavailable if: 1) during tcache + * initialization, or 2) disabled through thread.tcache.enabled mallctl + * or config options. This check covers all cases. + */ + if (likely(tsd_tcache_enabled_get(tsd))) { + /* Associated arena == NULL implies tcache init in progress. */ + if (config_debug && tsd_tcache_slowp_get(tsd)->arena != NULL) { + tcache_assert_initialized(tsd_tcachep_get(tsd)); + } + return true; + } + + return false; +} + +JEMALLOC_ALWAYS_INLINE tcache_t * +tcache_get(tsd_t *tsd) { + if (!tcache_available(tsd)) { + return NULL; + } + + return tsd_tcachep_get(tsd); +} + +JEMALLOC_ALWAYS_INLINE tcache_slow_t * +tcache_slow_get(tsd_t *tsd) { + if (!tcache_available(tsd)) { + return NULL; + } + + return tsd_tcache_slowp_get(tsd); +} + +static inline void +pre_reentrancy(tsd_t *tsd, arena_t *arena) { + /* arena is the current context. Reentry from a0 is not allowed. */ + assert(arena != arena_get(tsd_tsdn(tsd), 0, false)); + tsd_pre_reentrancy_raw(tsd); +} + +static inline void +post_reentrancy(tsd_t *tsd) { + tsd_post_reentrancy_raw(tsd); +} + +#endif /* JEMALLOC_INTERNAL_INLINES_A_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_b.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_b.h new file mode 100644 index 0000000..152f8a0 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_b.h @@ -0,0 +1,103 @@ +#ifndef JEMALLOC_INTERNAL_INLINES_B_H +#define JEMALLOC_INTERNAL_INLINES_B_H + +#include "jemalloc/internal/extent.h" + +static inline void +percpu_arena_update(tsd_t *tsd, unsigned cpu) { + assert(have_percpu_arena); + arena_t *oldarena = tsd_arena_get(tsd); + assert(oldarena != NULL); + unsigned oldind = arena_ind_get(oldarena); + + if (oldind != cpu) { + unsigned newind = cpu; + arena_t *newarena = arena_get(tsd_tsdn(tsd), newind, true); + assert(newarena != NULL); + + /* Set new arena/tcache associations. */ + arena_migrate(tsd, oldarena, newarena); + tcache_t *tcache = tcache_get(tsd); + if (tcache != NULL) { + tcache_slow_t *tcache_slow = tsd_tcache_slowp_get(tsd); + tcache_arena_reassociate(tsd_tsdn(tsd), tcache_slow, + tcache, newarena); + } + } +} + + +/* Choose an arena based on a per-thread value. */ +static inline arena_t * +arena_choose_impl(tsd_t *tsd, arena_t *arena, bool internal) { + arena_t *ret; + + if (arena != NULL) { + return arena; + } + + /* During reentrancy, arena 0 is the safest bet. */ + if (unlikely(tsd_reentrancy_level_get(tsd) > 0)) { + return arena_get(tsd_tsdn(tsd), 0, true); + } + + ret = internal ? tsd_iarena_get(tsd) : tsd_arena_get(tsd); + if (unlikely(ret == NULL)) { + ret = arena_choose_hard(tsd, internal); + assert(ret); + if (tcache_available(tsd)) { + tcache_slow_t *tcache_slow = tsd_tcache_slowp_get(tsd); + tcache_t *tcache = tsd_tcachep_get(tsd); + if (tcache_slow->arena != NULL) { + /* See comments in tsd_tcache_data_init().*/ + assert(tcache_slow->arena == + arena_get(tsd_tsdn(tsd), 0, false)); + if (tcache_slow->arena != ret) { + tcache_arena_reassociate(tsd_tsdn(tsd), + tcache_slow, tcache, ret); + } + } else { + tcache_arena_associate(tsd_tsdn(tsd), + tcache_slow, tcache, ret); + } + } + } + + /* + * Note that for percpu arena, if the current arena is outside of the + * auto percpu arena range, (i.e. thread is assigned to a manually + * managed arena), then percpu arena is skipped. + */ + if (have_percpu_arena && PERCPU_ARENA_ENABLED(opt_percpu_arena) && + !internal && (arena_ind_get(ret) < + percpu_arena_ind_limit(opt_percpu_arena)) && (ret->last_thd != + tsd_tsdn(tsd))) { + unsigned ind = percpu_arena_choose(); + if (arena_ind_get(ret) != ind) { + percpu_arena_update(tsd, ind); + ret = tsd_arena_get(tsd); + } + ret->last_thd = tsd_tsdn(tsd); + } + + return ret; +} + +static inline arena_t * +arena_choose(tsd_t *tsd, arena_t *arena) { + return arena_choose_impl(tsd, arena, false); +} + +static inline arena_t * +arena_ichoose(tsd_t *tsd, arena_t *arena) { + return arena_choose_impl(tsd, arena, true); +} + +static inline bool +arena_is_auto(arena_t *arena) { + assert(narenas_auto > 0); + + return (arena_ind_get(arena) < manual_arena_base); +} + +#endif /* JEMALLOC_INTERNAL_INLINES_B_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h new file mode 100644 index 0000000..2cd7e7c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_c.h @@ -0,0 +1,391 @@ +#ifndef JEMALLOC_INTERNAL_INLINES_C_H +#define JEMALLOC_INTERNAL_INLINES_C_H + +#include "jemalloc/internal/hook.h" +#include "jemalloc/internal/jemalloc_internal_types.h" +#include "jemalloc/internal/log.h" +#include "jemalloc/internal/sz.h" +#include "jemalloc/internal/thread_event.h" +#include "jemalloc/internal/witness.h" + +/* + * Translating the names of the 'i' functions: + * Abbreviations used in the first part of the function name (before + * alloc/dalloc) describe what that function accomplishes: + * a: arena (query) + * s: size (query, or sized deallocation) + * e: extent (query) + * p: aligned (allocates) + * vs: size (query, without knowing that the pointer is into the heap) + * r: rallocx implementation + * x: xallocx implementation + * Abbreviations used in the second part of the function name (after + * alloc/dalloc) describe the arguments it takes + * z: whether to return zeroed memory + * t: accepts a tcache_t * parameter + * m: accepts an arena_t * parameter + */ + +JEMALLOC_ALWAYS_INLINE arena_t * +iaalloc(tsdn_t *tsdn, const void *ptr) { + assert(ptr != NULL); + + return arena_aalloc(tsdn, ptr); +} + +JEMALLOC_ALWAYS_INLINE size_t +isalloc(tsdn_t *tsdn, const void *ptr) { + assert(ptr != NULL); + + return arena_salloc(tsdn, ptr); +} + +JEMALLOC_ALWAYS_INLINE void * +iallocztm(tsdn_t *tsdn, size_t size, szind_t ind, bool zero, tcache_t *tcache, + bool is_internal, arena_t *arena, bool slow_path) { + void *ret; + + assert(!is_internal || tcache == NULL); + assert(!is_internal || arena == NULL || arena_is_auto(arena)); + if (!tsdn_null(tsdn) && tsd_reentrancy_level_get(tsdn_tsd(tsdn)) == 0) { + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + } + + ret = arena_malloc(tsdn, arena, size, ind, zero, tcache, slow_path); + if (config_stats && is_internal && likely(ret != NULL)) { + arena_internal_add(iaalloc(tsdn, ret), isalloc(tsdn, ret)); + } + return ret; +} + +JEMALLOC_ALWAYS_INLINE void * +ialloc(tsd_t *tsd, size_t size, szind_t ind, bool zero, bool slow_path) { + return iallocztm(tsd_tsdn(tsd), size, ind, zero, tcache_get(tsd), false, + NULL, slow_path); +} + +JEMALLOC_ALWAYS_INLINE void * +ipallocztm(tsdn_t *tsdn, size_t usize, size_t alignment, bool zero, + tcache_t *tcache, bool is_internal, arena_t *arena) { + void *ret; + + assert(usize != 0); + assert(usize == sz_sa2u(usize, alignment)); + assert(!is_internal || tcache == NULL); + assert(!is_internal || arena == NULL || arena_is_auto(arena)); + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + + ret = arena_palloc(tsdn, arena, usize, alignment, zero, tcache); + assert(ALIGNMENT_ADDR2BASE(ret, alignment) == ret); + if (config_stats && is_internal && likely(ret != NULL)) { + arena_internal_add(iaalloc(tsdn, ret), isalloc(tsdn, ret)); + } + return ret; +} + +JEMALLOC_ALWAYS_INLINE void * +ipalloct(tsdn_t *tsdn, size_t usize, size_t alignment, bool zero, + tcache_t *tcache, arena_t *arena) { + return ipallocztm(tsdn, usize, alignment, zero, tcache, false, arena); +} + +JEMALLOC_ALWAYS_INLINE void * +ipalloc(tsd_t *tsd, size_t usize, size_t alignment, bool zero) { + return ipallocztm(tsd_tsdn(tsd), usize, alignment, zero, + tcache_get(tsd), false, NULL); +} + +JEMALLOC_ALWAYS_INLINE size_t +ivsalloc(tsdn_t *tsdn, const void *ptr) { + return arena_vsalloc(tsdn, ptr); +} + +JEMALLOC_ALWAYS_INLINE void +idalloctm(tsdn_t *tsdn, void *ptr, tcache_t *tcache, + emap_alloc_ctx_t *alloc_ctx, bool is_internal, bool slow_path) { + assert(ptr != NULL); + assert(!is_internal || tcache == NULL); + assert(!is_internal || arena_is_auto(iaalloc(tsdn, ptr))); + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + if (config_stats && is_internal) { + arena_internal_sub(iaalloc(tsdn, ptr), isalloc(tsdn, ptr)); + } + if (!is_internal && !tsdn_null(tsdn) && + tsd_reentrancy_level_get(tsdn_tsd(tsdn)) != 0) { + assert(tcache == NULL); + } + arena_dalloc(tsdn, ptr, tcache, alloc_ctx, slow_path); +} + +JEMALLOC_ALWAYS_INLINE void +idalloc(tsd_t *tsd, void *ptr) { + idalloctm(tsd_tsdn(tsd), ptr, tcache_get(tsd), NULL, false, true); +} + +JEMALLOC_ALWAYS_INLINE void +isdalloct(tsdn_t *tsdn, void *ptr, size_t size, tcache_t *tcache, + emap_alloc_ctx_t *alloc_ctx, bool slow_path) { + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + arena_sdalloc(tsdn, ptr, size, tcache, alloc_ctx, slow_path); +} + +JEMALLOC_ALWAYS_INLINE void * +iralloct_realign(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, + size_t alignment, bool zero, tcache_t *tcache, arena_t *arena, + hook_ralloc_args_t *hook_args) { + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + void *p; + size_t usize, copysize; + + usize = sz_sa2u(size, alignment); + if (unlikely(usize == 0 || usize > SC_LARGE_MAXCLASS)) { + return NULL; + } + p = ipalloct(tsdn, usize, alignment, zero, tcache, arena); + if (p == NULL) { + return NULL; + } + /* + * Copy at most size bytes (not size+extra), since the caller has no + * expectation that the extra bytes will be reliably preserved. + */ + copysize = (size < oldsize) ? size : oldsize; + memcpy(p, ptr, copysize); + hook_invoke_alloc(hook_args->is_realloc + ? hook_alloc_realloc : hook_alloc_rallocx, p, (uintptr_t)p, + hook_args->args); + hook_invoke_dalloc(hook_args->is_realloc + ? hook_dalloc_realloc : hook_dalloc_rallocx, ptr, hook_args->args); + isdalloct(tsdn, ptr, oldsize, tcache, NULL, true); + return p; +} + +/* + * is_realloc threads through the knowledge of whether or not this call comes + * from je_realloc (as opposed to je_rallocx); this ensures that we pass the + * correct entry point into any hooks. + * Note that these functions are all force-inlined, so no actual bool gets + * passed-around anywhere. + */ +JEMALLOC_ALWAYS_INLINE void * +iralloct(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, size_t alignment, + bool zero, tcache_t *tcache, arena_t *arena, hook_ralloc_args_t *hook_args) +{ + assert(ptr != NULL); + assert(size != 0); + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + + if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) + != 0) { + /* + * Existing object alignment is inadequate; allocate new space + * and copy. + */ + return iralloct_realign(tsdn, ptr, oldsize, size, alignment, + zero, tcache, arena, hook_args); + } + + return arena_ralloc(tsdn, arena, ptr, oldsize, size, alignment, zero, + tcache, hook_args); +} + +JEMALLOC_ALWAYS_INLINE void * +iralloc(tsd_t *tsd, void *ptr, size_t oldsize, size_t size, size_t alignment, + bool zero, hook_ralloc_args_t *hook_args) { + return iralloct(tsd_tsdn(tsd), ptr, oldsize, size, alignment, zero, + tcache_get(tsd), NULL, hook_args); +} + +JEMALLOC_ALWAYS_INLINE bool +ixalloc(tsdn_t *tsdn, void *ptr, size_t oldsize, size_t size, size_t extra, + size_t alignment, bool zero, size_t *newsize) { + assert(ptr != NULL); + assert(size != 0); + witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn), + WITNESS_RANK_CORE, 0); + + if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) + != 0) { + /* Existing object alignment is inadequate. */ + *newsize = oldsize; + return true; + } + + return arena_ralloc_no_move(tsdn, ptr, oldsize, size, extra, zero, + newsize); +} + +JEMALLOC_ALWAYS_INLINE void +fastpath_success_finish(tsd_t *tsd, uint64_t allocated_after, + cache_bin_t *bin, void *ret) { + thread_allocated_set(tsd, allocated_after); + if (config_stats) { + bin->tstats.nrequests++; + } + + LOG("core.malloc.exit", "result: %p", ret); +} + +JEMALLOC_ALWAYS_INLINE bool +malloc_initialized(void) { + return (malloc_init_state == malloc_init_initialized); +} + +/* + * malloc() fastpath. Included here so that we can inline it into operator new; + * function call overhead there is non-negligible as a fraction of total CPU in + * allocation-heavy C++ programs. We take the fallback alloc to allow malloc + * (which can return NULL) to differ in its behavior from operator new (which + * can't). It matches the signature of malloc / operator new so that we can + * tail-call the fallback allocator, allowing us to avoid setting up the call + * frame in the common case. + * + * Fastpath assumes size <= SC_LOOKUP_MAXCLASS, and that we hit + * tcache. If either of these is false, we tail-call to the slowpath, + * malloc_default(). Tail-calling is used to avoid any caller-saved + * registers. + * + * fastpath supports ticker and profiling, both of which will also + * tail-call to the slowpath if they fire. + */ +JEMALLOC_ALWAYS_INLINE void * +imalloc_fastpath(size_t size, void *(fallback_alloc)(size_t)) { + LOG("core.malloc.entry", "size: %zu", size); + if (tsd_get_allocates() && unlikely(!malloc_initialized())) { + return fallback_alloc(size); + } + + tsd_t *tsd = tsd_get(false); + if (unlikely((size > SC_LOOKUP_MAXCLASS) || tsd == NULL)) { + return fallback_alloc(size); + } + /* + * The code below till the branch checking the next_event threshold may + * execute before malloc_init(), in which case the threshold is 0 to + * trigger slow path and initialization. + * + * Note that when uninitialized, only the fast-path variants of the sz / + * tsd facilities may be called. + */ + szind_t ind; + /* + * The thread_allocated counter in tsd serves as a general purpose + * accumulator for bytes of allocation to trigger different types of + * events. usize is always needed to advance thread_allocated, though + * it's not always needed in the core allocation logic. + */ + size_t usize; + sz_size2index_usize_fastpath(size, &ind, &usize); + /* Fast path relies on size being a bin. */ + assert(ind < SC_NBINS); + assert((SC_LOOKUP_MAXCLASS < SC_SMALL_MAXCLASS) && + (size <= SC_SMALL_MAXCLASS)); + + uint64_t allocated, threshold; + te_malloc_fastpath_ctx(tsd, &allocated, &threshold); + uint64_t allocated_after = allocated + usize; + /* + * The ind and usize might be uninitialized (or partially) before + * malloc_init(). The assertions check for: 1) full correctness (usize + * & ind) when initialized; and 2) guaranteed slow-path (threshold == 0) + * when !initialized. + */ + if (!malloc_initialized()) { + assert(threshold == 0); + } else { + assert(ind == sz_size2index(size)); + assert(usize > 0 && usize == sz_index2size(ind)); + } + /* + * Check for events and tsd non-nominal (fast_threshold will be set to + * 0) in a single branch. + */ + if (unlikely(allocated_after >= threshold)) { + return fallback_alloc(size); + } + assert(tsd_fast(tsd)); + + tcache_t *tcache = tsd_tcachep_get(tsd); + assert(tcache == tcache_get(tsd)); + cache_bin_t *bin = &tcache->bins[ind]; + bool tcache_success; + void *ret; + + /* + * We split up the code this way so that redundant low-water + * computation doesn't happen on the (more common) case in which we + * don't touch the low water mark. The compiler won't do this + * duplication on its own. + */ + ret = cache_bin_alloc_easy(bin, &tcache_success); + if (tcache_success) { + fastpath_success_finish(tsd, allocated_after, bin, ret); + return ret; + } + ret = cache_bin_alloc(bin, &tcache_success); + if (tcache_success) { + fastpath_success_finish(tsd, allocated_after, bin, ret); + return ret; + } + + return fallback_alloc(size); +} + +JEMALLOC_ALWAYS_INLINE int +iget_defrag_hint(tsdn_t *tsdn, void* ptr) { + int defrag = 0; + emap_alloc_ctx_t alloc_ctx; + emap_alloc_ctx_lookup(tsdn, &arena_emap_global, ptr, &alloc_ctx); + if (likely(alloc_ctx.slab)) { + /* Small allocation. */ + edata_t *slab = emap_edata_lookup(tsdn, &arena_emap_global, ptr); + arena_t *arena = arena_get_from_edata(slab); + szind_t binind = edata_szind_get(slab); + unsigned binshard = edata_binshard_get(slab); + bin_t *bin = arena_get_bin(arena, binind, binshard); + malloc_mutex_lock(tsdn, &bin->lock); + arena_dalloc_bin_locked_info_t info; + arena_dalloc_bin_locked_begin(&info, binind); + /* Don't bother moving allocations from the slab currently used for new allocations */ + if (slab != bin->slabcur) { + int free_in_slab = edata_nfree_get(slab); + if (free_in_slab) { + const bin_info_t *bin_info = &bin_infos[binind]; + /* Find number of non-full slabs and the number of regs in them */ + unsigned long curslabs = 0; + size_t curregs = 0; + /* Run on all bin shards (usually just one) */ + for (uint32_t i=0; i< bin_info->n_shards; i++) { + bin_t *bb = arena_get_bin(arena, binind, i); + curslabs += bb->stats.nonfull_slabs; + /* Deduct the regs in full slabs (they're not part of the game) */ + unsigned long full_slabs = bb->stats.curslabs - bb->stats.nonfull_slabs; + curregs += bb->stats.curregs - full_slabs * bin_info->nregs; + if (bb->slabcur) { + /* Remove slabcur from the overall utilization (not a candidate to nove from) */ + curregs -= bin_info->nregs - edata_nfree_get(bb->slabcur); + curslabs -= 1; + } + } + /* Compare the utilization ratio of the slab in question to the total average + * among non-full slabs. To avoid precision loss in division, we do that by + * extrapolating the usage of the slab as if all slabs have the same usage. + * If this slab is less used than the average, we'll prefer to move the data + * to hopefully more used ones. To avoid stagnation when all slabs have the same + * utilization, we give additional 12.5% weight to the decision to defrag. */ + defrag = (bin_info->nregs - free_in_slab) * curslabs <= curregs + curregs / 8; + } + } + arena_dalloc_bin_locked_finish(tsdn, arena, bin, &info); + malloc_mutex_unlock(tsdn, &bin->lock); + } + return defrag; +} + +#endif /* JEMALLOC_INTERNAL_INLINES_C_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_macros.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_macros.h new file mode 100644 index 0000000..e97b5f9 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_macros.h @@ -0,0 +1,111 @@ +#ifndef JEMALLOC_INTERNAL_MACROS_H +#define JEMALLOC_INTERNAL_MACROS_H + +#ifdef JEMALLOC_DEBUG +# define JEMALLOC_ALWAYS_INLINE static inline +#else +# ifdef _MSC_VER +# define JEMALLOC_ALWAYS_INLINE static __forceinline +# else +# define JEMALLOC_ALWAYS_INLINE JEMALLOC_ATTR(always_inline) static inline +# endif +#endif +#ifdef _MSC_VER +# define inline _inline +#endif + +#define UNUSED JEMALLOC_ATTR(unused) + +#define ZU(z) ((size_t)z) +#define ZD(z) ((ssize_t)z) +#define QU(q) ((uint64_t)q) +#define QD(q) ((int64_t)q) + +#define KZU(z) ZU(z##ULL) +#define KZD(z) ZD(z##LL) +#define KQU(q) QU(q##ULL) +#define KQD(q) QI(q##LL) + +#ifndef __DECONST +# define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) +#endif + +#if !defined(JEMALLOC_HAS_RESTRICT) || defined(__cplusplus) +# define restrict +#endif + +/* Various function pointers are static and immutable except during testing. */ +#ifdef JEMALLOC_JET +# define JET_MUTABLE +#else +# define JET_MUTABLE const +#endif + +#define JEMALLOC_VA_ARGS_HEAD(head, ...) head +#define JEMALLOC_VA_ARGS_TAIL(head, ...) __VA_ARGS__ + +/* Diagnostic suppression macros */ +#if defined(_MSC_VER) && !defined(__clang__) +# define JEMALLOC_DIAGNOSTIC_PUSH __pragma(warning(push)) +# define JEMALLOC_DIAGNOSTIC_POP __pragma(warning(pop)) +# define JEMALLOC_DIAGNOSTIC_IGNORE(W) __pragma(warning(disable:W)) +# define JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS +# define JEMALLOC_DIAGNOSTIC_IGNORE_TYPE_LIMITS +# define JEMALLOC_DIAGNOSTIC_IGNORE_ALLOC_SIZE_LARGER_THAN +# define JEMALLOC_DIAGNOSTIC_DISABLE_SPURIOUS +/* #pragma GCC diagnostic first appeared in gcc 4.6. */ +#elif (defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && \ + (__GNUC_MINOR__ > 5)))) || defined(__clang__) +/* + * The JEMALLOC_PRAGMA__ macro is an implementation detail of the GCC and Clang + * diagnostic suppression macros and should not be used anywhere else. + */ +# define JEMALLOC_PRAGMA__(X) _Pragma(#X) +# define JEMALLOC_DIAGNOSTIC_PUSH JEMALLOC_PRAGMA__(GCC diagnostic push) +# define JEMALLOC_DIAGNOSTIC_POP JEMALLOC_PRAGMA__(GCC diagnostic pop) +# define JEMALLOC_DIAGNOSTIC_IGNORE(W) \ + JEMALLOC_PRAGMA__(GCC diagnostic ignored W) + +/* + * The -Wmissing-field-initializers warning is buggy in GCC versions < 5.1 and + * all clang versions up to version 7 (currently trunk, unreleased). This macro + * suppresses the warning for the affected compiler versions only. + */ +# if ((defined(__GNUC__) && !defined(__clang__)) && (__GNUC__ < 5)) || \ + defined(__clang__) +# define JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS \ + JEMALLOC_DIAGNOSTIC_IGNORE("-Wmissing-field-initializers") +# else +# define JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS +# endif + +# define JEMALLOC_DIAGNOSTIC_IGNORE_TYPE_LIMITS \ + JEMALLOC_DIAGNOSTIC_IGNORE("-Wtype-limits") +# define JEMALLOC_DIAGNOSTIC_IGNORE_UNUSED_PARAMETER \ + JEMALLOC_DIAGNOSTIC_IGNORE("-Wunused-parameter") +# if defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 7) +# define JEMALLOC_DIAGNOSTIC_IGNORE_ALLOC_SIZE_LARGER_THAN \ + JEMALLOC_DIAGNOSTIC_IGNORE("-Walloc-size-larger-than=") +# else +# define JEMALLOC_DIAGNOSTIC_IGNORE_ALLOC_SIZE_LARGER_THAN +# endif +# define JEMALLOC_DIAGNOSTIC_DISABLE_SPURIOUS \ + JEMALLOC_DIAGNOSTIC_PUSH \ + JEMALLOC_DIAGNOSTIC_IGNORE_UNUSED_PARAMETER +#else +# define JEMALLOC_DIAGNOSTIC_PUSH +# define JEMALLOC_DIAGNOSTIC_POP +# define JEMALLOC_DIAGNOSTIC_IGNORE(W) +# define JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS +# define JEMALLOC_DIAGNOSTIC_IGNORE_TYPE_LIMITS +# define JEMALLOC_DIAGNOSTIC_IGNORE_ALLOC_SIZE_LARGER_THAN +# define JEMALLOC_DIAGNOSTIC_DISABLE_SPURIOUS +#endif + +/* + * Disables spurious diagnostics for all headers. Since these headers are not + * included by users directly, it does not affect their diagnostic settings. + */ +JEMALLOC_DIAGNOSTIC_DISABLE_SPURIOUS + +#endif /* JEMALLOC_INTERNAL_MACROS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_types.h b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_types.h new file mode 100644 index 0000000..62c2b59 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal_types.h @@ -0,0 +1,130 @@ +#ifndef JEMALLOC_INTERNAL_TYPES_H +#define JEMALLOC_INTERNAL_TYPES_H + +#include "jemalloc/internal/quantum.h" + +/* Processor / core id type. */ +typedef int malloc_cpuid_t; + +/* When realloc(non-null-ptr, 0) is called, what happens? */ +enum zero_realloc_action_e { + /* Realloc(ptr, 0) is free(ptr); return malloc(0); */ + zero_realloc_action_alloc = 0, + /* Realloc(ptr, 0) is free(ptr); */ + zero_realloc_action_free = 1, + /* Realloc(ptr, 0) aborts. */ + zero_realloc_action_abort = 2 +}; +typedef enum zero_realloc_action_e zero_realloc_action_t; + +/* Signature of write callback. */ +typedef void (write_cb_t)(void *, const char *); + +enum malloc_init_e { + malloc_init_uninitialized = 3, + malloc_init_a0_initialized = 2, + malloc_init_recursible = 1, + malloc_init_initialized = 0 /* Common case --> jnz. */ +}; +typedef enum malloc_init_e malloc_init_t; + +/* + * Flags bits: + * + * a: arena + * t: tcache + * 0: unused + * z: zero + * n: alignment + * + * aaaaaaaa aaaatttt tttttttt 0znnnnnn + */ +#define MALLOCX_ARENA_BITS 12 +#define MALLOCX_TCACHE_BITS 12 +#define MALLOCX_LG_ALIGN_BITS 6 +#define MALLOCX_ARENA_SHIFT 20 +#define MALLOCX_TCACHE_SHIFT 8 +#define MALLOCX_ARENA_MASK \ + (((1 << MALLOCX_ARENA_BITS) - 1) << MALLOCX_ARENA_SHIFT) +/* NB: Arena index bias decreases the maximum number of arenas by 1. */ +#define MALLOCX_ARENA_LIMIT ((1 << MALLOCX_ARENA_BITS) - 1) +#define MALLOCX_TCACHE_MASK \ + (((1 << MALLOCX_TCACHE_BITS) - 1) << MALLOCX_TCACHE_SHIFT) +#define MALLOCX_TCACHE_MAX ((1 << MALLOCX_TCACHE_BITS) - 3) +#define MALLOCX_LG_ALIGN_MASK ((1 << MALLOCX_LG_ALIGN_BITS) - 1) +/* Use MALLOCX_ALIGN_GET() if alignment may not be specified in flags. */ +#define MALLOCX_ALIGN_GET_SPECIFIED(flags) \ + (ZU(1) << (flags & MALLOCX_LG_ALIGN_MASK)) +#define MALLOCX_ALIGN_GET(flags) \ + (MALLOCX_ALIGN_GET_SPECIFIED(flags) & (SIZE_T_MAX-1)) +#define MALLOCX_ZERO_GET(flags) \ + ((bool)(flags & MALLOCX_ZERO)) + +#define MALLOCX_TCACHE_GET(flags) \ + (((unsigned)((flags & MALLOCX_TCACHE_MASK) >> MALLOCX_TCACHE_SHIFT)) - 2) +#define MALLOCX_ARENA_GET(flags) \ + (((unsigned)(((unsigned)flags) >> MALLOCX_ARENA_SHIFT)) - 1) + +/* Smallest size class to support. */ +#define TINY_MIN (1U << LG_TINY_MIN) + +#define LONG ((size_t)(1U << LG_SIZEOF_LONG)) +#define LONG_MASK (LONG - 1) + +/* Return the smallest long multiple that is >= a. */ +#define LONG_CEILING(a) \ + (((a) + LONG_MASK) & ~LONG_MASK) + +#define SIZEOF_PTR (1U << LG_SIZEOF_PTR) +#define PTR_MASK (SIZEOF_PTR - 1) + +/* Return the smallest (void *) multiple that is >= a. */ +#define PTR_CEILING(a) \ + (((a) + PTR_MASK) & ~PTR_MASK) + +/* + * Maximum size of L1 cache line. This is used to avoid cache line aliasing. + * In addition, this controls the spacing of cacheline-spaced size classes. + * + * CACHELINE cannot be based on LG_CACHELINE because __declspec(align()) can + * only handle raw constants. + */ +#define LG_CACHELINE 6 +#define CACHELINE 64 +#define CACHELINE_MASK (CACHELINE - 1) + +/* Return the smallest cacheline multiple that is >= s. */ +#define CACHELINE_CEILING(s) \ + (((s) + CACHELINE_MASK) & ~CACHELINE_MASK) + +/* Return the nearest aligned address at or below a. */ +#define ALIGNMENT_ADDR2BASE(a, alignment) \ + ((void *)((uintptr_t)(a) & ((~(alignment)) + 1))) + +/* Return the offset between a and the nearest aligned address at or below a. */ +#define ALIGNMENT_ADDR2OFFSET(a, alignment) \ + ((size_t)((uintptr_t)(a) & (alignment - 1))) + +/* Return the smallest alignment multiple that is >= s. */ +#define ALIGNMENT_CEILING(s, alignment) \ + (((s) + (alignment - 1)) & ((~(alignment)) + 1)) + +/* Declare a variable-length array. */ +#if __STDC_VERSION__ < 199901L +# ifdef _MSC_VER +# include <malloc.h> +# define alloca _alloca +# else +# ifdef JEMALLOC_HAS_ALLOCA_H +# include <alloca.h> +# else +# include <stdlib.h> +# endif +# endif +# define VARIABLE_ARRAY(type, name, count) \ + type *name = alloca(sizeof(type) * (count)) +#else +# define VARIABLE_ARRAY(type, name, count) type name[(count)] +#endif + +#endif /* JEMALLOC_INTERNAL_TYPES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_preamble.h.in b/deps/jemalloc/include/jemalloc/internal/jemalloc_preamble.h.in new file mode 100644 index 0000000..5ce77d9 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_preamble.h.in @@ -0,0 +1,263 @@ +#ifndef JEMALLOC_PREAMBLE_H +#define JEMALLOC_PREAMBLE_H + +#include "jemalloc_internal_defs.h" +#include "jemalloc/internal/jemalloc_internal_decls.h" + +#if defined(JEMALLOC_UTRACE) || defined(JEMALLOC_UTRACE_LABEL) +#include <sys/ktrace.h> +# if defined(JEMALLOC_UTRACE) +# define UTRACE_CALL(p, l) utrace(p, l) +# else +# define UTRACE_CALL(p, l) utrace("jemalloc_process", p, l) +# define JEMALLOC_UTRACE +# endif +#endif + +#define JEMALLOC_NO_DEMANGLE +#ifdef JEMALLOC_JET +# undef JEMALLOC_IS_MALLOC +# define JEMALLOC_N(n) jet_##n +# include "jemalloc/internal/public_namespace.h" +# define JEMALLOC_NO_RENAME +# include "../jemalloc@install_suffix@.h" +# undef JEMALLOC_NO_RENAME +#else +# define JEMALLOC_N(n) @private_namespace@##n +# include "../jemalloc@install_suffix@.h" +#endif + +#if defined(JEMALLOC_OSATOMIC) +#include <libkern/OSAtomic.h> +#endif + +#ifdef JEMALLOC_ZONE +#include <mach/mach_error.h> +#include <mach/mach_init.h> +#include <mach/vm_map.h> +#endif + +#include "jemalloc/internal/jemalloc_internal_macros.h" + +/* + * Note that the ordering matters here; the hook itself is name-mangled. We + * want the inclusion of hooks to happen early, so that we hook as much as + * possible. + */ +#ifndef JEMALLOC_NO_PRIVATE_NAMESPACE +# ifndef JEMALLOC_JET +# include "jemalloc/internal/private_namespace.h" +# else +# include "jemalloc/internal/private_namespace_jet.h" +# endif +#endif +#include "jemalloc/internal/test_hooks.h" + +#ifdef JEMALLOC_DEFINE_MADVISE_FREE +# define JEMALLOC_MADV_FREE 8 +#endif + +static const bool config_debug = +#ifdef JEMALLOC_DEBUG + true +#else + false +#endif + ; +static const bool have_dss = +#ifdef JEMALLOC_DSS + true +#else + false +#endif + ; +static const bool have_madvise_huge = +#ifdef JEMALLOC_HAVE_MADVISE_HUGE + true +#else + false +#endif + ; +static const bool config_fill = +#ifdef JEMALLOC_FILL + true +#else + false +#endif + ; +static const bool config_lazy_lock = +#ifdef JEMALLOC_LAZY_LOCK + true +#else + false +#endif + ; +static const char * const config_malloc_conf = JEMALLOC_CONFIG_MALLOC_CONF; +static const bool config_prof = +#ifdef JEMALLOC_PROF + true +#else + false +#endif + ; +static const bool config_prof_libgcc = +#ifdef JEMALLOC_PROF_LIBGCC + true +#else + false +#endif + ; +static const bool config_prof_libunwind = +#ifdef JEMALLOC_PROF_LIBUNWIND + true +#else + false +#endif + ; +static const bool maps_coalesce = +#ifdef JEMALLOC_MAPS_COALESCE + true +#else + false +#endif + ; +static const bool config_stats = +#ifdef JEMALLOC_STATS + true +#else + false +#endif + ; +static const bool config_tls = +#ifdef JEMALLOC_TLS + true +#else + false +#endif + ; +static const bool config_utrace = +#ifdef JEMALLOC_UTRACE + true +#else + false +#endif + ; +static const bool config_xmalloc = +#ifdef JEMALLOC_XMALLOC + true +#else + false +#endif + ; +static const bool config_cache_oblivious = +#ifdef JEMALLOC_CACHE_OBLIVIOUS + true +#else + false +#endif + ; +/* + * Undocumented, for jemalloc development use only at the moment. See the note + * in jemalloc/internal/log.h. + */ +static const bool config_log = +#ifdef JEMALLOC_LOG + true +#else + false +#endif + ; +/* + * Are extra safety checks enabled; things like checking the size of sized + * deallocations, double-frees, etc. + */ +static const bool config_opt_safety_checks = +#ifdef JEMALLOC_OPT_SAFETY_CHECKS + true +#elif defined(JEMALLOC_DEBUG) + /* + * This lets us only guard safety checks by one flag instead of two; fast + * checks can guard solely by config_opt_safety_checks and run in debug mode + * too. + */ + true +#else + false +#endif + ; + +/* + * Extra debugging of sized deallocations too onerous to be included in the + * general safety checks. + */ +static const bool config_opt_size_checks = +#if defined(JEMALLOC_OPT_SIZE_CHECKS) || defined(JEMALLOC_DEBUG) + true +#else + false +#endif + ; + +static const bool config_uaf_detection = +#if defined(JEMALLOC_UAF_DETECTION) || defined(JEMALLOC_DEBUG) + true +#else + false +#endif + ; + +/* Whether or not the C++ extensions are enabled. */ +static const bool config_enable_cxx = +#ifdef JEMALLOC_ENABLE_CXX + true +#else + false +#endif +; + +#if defined(_WIN32) || defined(JEMALLOC_HAVE_SCHED_GETCPU) +/* Currently percpu_arena depends on sched_getcpu. */ +#define JEMALLOC_PERCPU_ARENA +#endif +static const bool have_percpu_arena = +#ifdef JEMALLOC_PERCPU_ARENA + true +#else + false +#endif + ; +/* + * Undocumented, and not recommended; the application should take full + * responsibility for tracking provenance. + */ +static const bool force_ivsalloc = +#ifdef JEMALLOC_FORCE_IVSALLOC + true +#else + false +#endif + ; +static const bool have_background_thread = +#ifdef JEMALLOC_BACKGROUND_THREAD + true +#else + false +#endif + ; +static const bool config_high_res_timer = +#ifdef JEMALLOC_HAVE_CLOCK_REALTIME + true +#else + false +#endif + ; + +static const bool have_memcntl = +#ifdef JEMALLOC_HAVE_MEMCNTL + true +#else + false +#endif + ; + +#endif /* JEMALLOC_PREAMBLE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/large_externs.h b/deps/jemalloc/include/jemalloc/internal/large_externs.h new file mode 100644 index 0000000..8e09122 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/large_externs.h @@ -0,0 +1,24 @@ +#ifndef JEMALLOC_INTERNAL_LARGE_EXTERNS_H +#define JEMALLOC_INTERNAL_LARGE_EXTERNS_H + +#include "jemalloc/internal/hook.h" + +void *large_malloc(tsdn_t *tsdn, arena_t *arena, size_t usize, bool zero); +void *large_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize, size_t alignment, + bool zero); +bool large_ralloc_no_move(tsdn_t *tsdn, edata_t *edata, size_t usize_min, + size_t usize_max, bool zero); +void *large_ralloc(tsdn_t *tsdn, arena_t *arena, void *ptr, size_t usize, + size_t alignment, bool zero, tcache_t *tcache, + hook_ralloc_args_t *hook_args); + +void large_dalloc_prep_locked(tsdn_t *tsdn, edata_t *edata); +void large_dalloc_finish(tsdn_t *tsdn, edata_t *edata); +void large_dalloc(tsdn_t *tsdn, edata_t *edata); +size_t large_salloc(tsdn_t *tsdn, const edata_t *edata); +void large_prof_info_get(tsd_t *tsd, edata_t *edata, prof_info_t *prof_info, + bool reset_recent); +void large_prof_tctx_reset(edata_t *edata); +void large_prof_info_set(edata_t *edata, prof_tctx_t *tctx, size_t size); + +#endif /* JEMALLOC_INTERNAL_LARGE_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/lockedint.h b/deps/jemalloc/include/jemalloc/internal/lockedint.h new file mode 100644 index 0000000..d020ebe --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/lockedint.h @@ -0,0 +1,204 @@ +#ifndef JEMALLOC_INTERNAL_LOCKEDINT_H +#define JEMALLOC_INTERNAL_LOCKEDINT_H + +/* + * In those architectures that support 64-bit atomics, we use atomic updates for + * our 64-bit values. Otherwise, we use a plain uint64_t and synchronize + * externally. + */ + +typedef struct locked_u64_s locked_u64_t; +#ifdef JEMALLOC_ATOMIC_U64 +struct locked_u64_s { + atomic_u64_t val; +}; +#else +/* Must hold the associated mutex. */ +struct locked_u64_s { + uint64_t val; +}; +#endif + +typedef struct locked_zu_s locked_zu_t; +struct locked_zu_s { + atomic_zu_t val; +}; + +#ifndef JEMALLOC_ATOMIC_U64 +# define LOCKEDINT_MTX_DECLARE(name) malloc_mutex_t name; +# define LOCKEDINT_MTX_INIT(mu, name, rank, rank_mode) \ + malloc_mutex_init(&(mu), name, rank, rank_mode) +# define LOCKEDINT_MTX(mtx) (&(mtx)) +# define LOCKEDINT_MTX_LOCK(tsdn, mu) malloc_mutex_lock(tsdn, &(mu)) +# define LOCKEDINT_MTX_UNLOCK(tsdn, mu) malloc_mutex_unlock(tsdn, &(mu)) +# define LOCKEDINT_MTX_PREFORK(tsdn, mu) malloc_mutex_prefork(tsdn, &(mu)) +# define LOCKEDINT_MTX_POSTFORK_PARENT(tsdn, mu) \ + malloc_mutex_postfork_parent(tsdn, &(mu)) +# define LOCKEDINT_MTX_POSTFORK_CHILD(tsdn, mu) \ + malloc_mutex_postfork_child(tsdn, &(mu)) +#else +# define LOCKEDINT_MTX_DECLARE(name) +# define LOCKEDINT_MTX(mtx) NULL +# define LOCKEDINT_MTX_INIT(mu, name, rank, rank_mode) false +# define LOCKEDINT_MTX_LOCK(tsdn, mu) +# define LOCKEDINT_MTX_UNLOCK(tsdn, mu) +# define LOCKEDINT_MTX_PREFORK(tsdn, mu) +# define LOCKEDINT_MTX_POSTFORK_PARENT(tsdn, mu) +# define LOCKEDINT_MTX_POSTFORK_CHILD(tsdn, mu) +#endif + +#ifdef JEMALLOC_ATOMIC_U64 +# define LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx) assert((mtx) == NULL) +#else +# define LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx) \ + malloc_mutex_assert_owner(tsdn, (mtx)) +#endif + +static inline uint64_t +locked_read_u64(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_u64_t *p) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); +#ifdef JEMALLOC_ATOMIC_U64 + return atomic_load_u64(&p->val, ATOMIC_RELAXED); +#else + return p->val; +#endif +} + +static inline void +locked_inc_u64(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_u64_t *p, + uint64_t x) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); +#ifdef JEMALLOC_ATOMIC_U64 + atomic_fetch_add_u64(&p->val, x, ATOMIC_RELAXED); +#else + p->val += x; +#endif +} + +static inline void +locked_dec_u64(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_u64_t *p, + uint64_t x) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); +#ifdef JEMALLOC_ATOMIC_U64 + uint64_t r = atomic_fetch_sub_u64(&p->val, x, ATOMIC_RELAXED); + assert(r - x <= r); +#else + p->val -= x; + assert(p->val + x >= p->val); +#endif +} + +/* Increment and take modulus. Returns whether the modulo made any change. */ +static inline bool +locked_inc_mod_u64(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_u64_t *p, + const uint64_t x, const uint64_t modulus) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); + uint64_t before, after; + bool overflow; +#ifdef JEMALLOC_ATOMIC_U64 + before = atomic_load_u64(&p->val, ATOMIC_RELAXED); + do { + after = before + x; + assert(after >= before); + overflow = (after >= modulus); + if (overflow) { + after %= modulus; + } + } while (!atomic_compare_exchange_weak_u64(&p->val, &before, after, + ATOMIC_RELAXED, ATOMIC_RELAXED)); +#else + before = p->val; + after = before + x; + overflow = (after >= modulus); + if (overflow) { + after %= modulus; + } + p->val = after; +#endif + return overflow; +} + +/* + * Non-atomically sets *dst += src. *dst needs external synchronization. + * This lets us avoid the cost of a fetch_add when its unnecessary (note that + * the types here are atomic). + */ +static inline void +locked_inc_u64_unsynchronized(locked_u64_t *dst, uint64_t src) { +#ifdef JEMALLOC_ATOMIC_U64 + uint64_t cur_dst = atomic_load_u64(&dst->val, ATOMIC_RELAXED); + atomic_store_u64(&dst->val, src + cur_dst, ATOMIC_RELAXED); +#else + dst->val += src; +#endif +} + +static inline uint64_t +locked_read_u64_unsynchronized(locked_u64_t *p) { +#ifdef JEMALLOC_ATOMIC_U64 + return atomic_load_u64(&p->val, ATOMIC_RELAXED); +#else + return p->val; +#endif +} + +static inline void +locked_init_u64_unsynchronized(locked_u64_t *p, uint64_t x) { +#ifdef JEMALLOC_ATOMIC_U64 + atomic_store_u64(&p->val, x, ATOMIC_RELAXED); +#else + p->val = x; +#endif +} + +static inline size_t +locked_read_zu(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_zu_t *p) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); +#ifdef JEMALLOC_ATOMIC_U64 + return atomic_load_zu(&p->val, ATOMIC_RELAXED); +#else + return atomic_load_zu(&p->val, ATOMIC_RELAXED); +#endif +} + +static inline void +locked_inc_zu(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_zu_t *p, + size_t x) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); +#ifdef JEMALLOC_ATOMIC_U64 + atomic_fetch_add_zu(&p->val, x, ATOMIC_RELAXED); +#else + size_t cur = atomic_load_zu(&p->val, ATOMIC_RELAXED); + atomic_store_zu(&p->val, cur + x, ATOMIC_RELAXED); +#endif +} + +static inline void +locked_dec_zu(tsdn_t *tsdn, malloc_mutex_t *mtx, locked_zu_t *p, + size_t x) { + LOCKEDINT_MTX_ASSERT_INTERNAL(tsdn, mtx); +#ifdef JEMALLOC_ATOMIC_U64 + size_t r = atomic_fetch_sub_zu(&p->val, x, ATOMIC_RELAXED); + assert(r - x <= r); +#else + size_t cur = atomic_load_zu(&p->val, ATOMIC_RELAXED); + atomic_store_zu(&p->val, cur - x, ATOMIC_RELAXED); +#endif +} + +/* Like the _u64 variant, needs an externally synchronized *dst. */ +static inline void +locked_inc_zu_unsynchronized(locked_zu_t *dst, size_t src) { + size_t cur_dst = atomic_load_zu(&dst->val, ATOMIC_RELAXED); + atomic_store_zu(&dst->val, src + cur_dst, ATOMIC_RELAXED); +} + +/* + * Unlike the _u64 variant, this is safe to call unconditionally. + */ +static inline size_t +locked_read_atomic_zu(locked_zu_t *p) { + return atomic_load_zu(&p->val, ATOMIC_RELAXED); +} + +#endif /* JEMALLOC_INTERNAL_LOCKEDINT_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/log.h b/deps/jemalloc/include/jemalloc/internal/log.h new file mode 100644 index 0000000..6420858 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/log.h @@ -0,0 +1,115 @@ +#ifndef JEMALLOC_INTERNAL_LOG_H +#define JEMALLOC_INTERNAL_LOG_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/malloc_io.h" +#include "jemalloc/internal/mutex.h" + +#ifdef JEMALLOC_LOG +# define JEMALLOC_LOG_VAR_BUFSIZE 1000 +#else +# define JEMALLOC_LOG_VAR_BUFSIZE 1 +#endif + +#define JEMALLOC_LOG_BUFSIZE 4096 + +/* + * The log malloc_conf option is a '|'-delimited list of log_var name segments + * which should be logged. The names are themselves hierarchical, with '.' as + * the delimiter (a "segment" is just a prefix in the log namespace). So, if + * you have: + * + * log("arena", "log msg for arena"); // 1 + * log("arena.a", "log msg for arena.a"); // 2 + * log("arena.b", "log msg for arena.b"); // 3 + * log("arena.a.a", "log msg for arena.a.a"); // 4 + * log("extent.a", "log msg for extent.a"); // 5 + * log("extent.b", "log msg for extent.b"); // 6 + * + * And your malloc_conf option is "log=arena.a|extent", then lines 2, 4, 5, and + * 6 will print at runtime. You can enable logging from all log vars by + * writing "log=.". + * + * None of this should be regarded as a stable API for right now. It's intended + * as a debugging interface, to let us keep around some of our printf-debugging + * statements. + */ + +extern char log_var_names[JEMALLOC_LOG_VAR_BUFSIZE]; +extern atomic_b_t log_init_done; + +typedef struct log_var_s log_var_t; +struct log_var_s { + /* + * Lowest bit is "inited", second lowest is "enabled". Putting them in + * a single word lets us avoid any fences on weak architectures. + */ + atomic_u_t state; + const char *name; +}; + +#define LOG_NOT_INITIALIZED 0U +#define LOG_INITIALIZED_NOT_ENABLED 1U +#define LOG_ENABLED 2U + +#define LOG_VAR_INIT(name_str) {ATOMIC_INIT(LOG_NOT_INITIALIZED), name_str} + +/* + * Returns the value we should assume for state (which is not necessarily + * accurate; if logging is done before logging has finished initializing, then + * we default to doing the safe thing by logging everything). + */ +unsigned log_var_update_state(log_var_t *log_var); + +/* We factor out the metadata management to allow us to test more easily. */ +#define log_do_begin(log_var) \ +if (config_log) { \ + unsigned log_state = atomic_load_u(&(log_var).state, \ + ATOMIC_RELAXED); \ + if (unlikely(log_state == LOG_NOT_INITIALIZED)) { \ + log_state = log_var_update_state(&(log_var)); \ + assert(log_state != LOG_NOT_INITIALIZED); \ + } \ + if (log_state == LOG_ENABLED) { \ + { + /* User code executes here. */ +#define log_do_end(log_var) \ + } \ + } \ +} + +/* + * MSVC has some preprocessor bugs in its expansion of __VA_ARGS__ during + * preprocessing. To work around this, we take all potential extra arguments in + * a var-args functions. Since a varargs macro needs at least one argument in + * the "...", we accept the format string there, and require that the first + * argument in this "..." is a const char *. + */ +static inline void +log_impl_varargs(const char *name, ...) { + char buf[JEMALLOC_LOG_BUFSIZE]; + va_list ap; + + va_start(ap, name); + const char *format = va_arg(ap, const char *); + size_t dst_offset = 0; + dst_offset += malloc_snprintf(buf, JEMALLOC_LOG_BUFSIZE, "%s: ", name); + dst_offset += malloc_vsnprintf(buf + dst_offset, + JEMALLOC_LOG_BUFSIZE - dst_offset, format, ap); + dst_offset += malloc_snprintf(buf + dst_offset, + JEMALLOC_LOG_BUFSIZE - dst_offset, "\n"); + va_end(ap); + + malloc_write(buf); +} + +/* Call as log("log.var.str", "format_string %d", arg_for_format_string); */ +#define LOG(log_var_str, ...) \ +do { \ + static log_var_t log_var = LOG_VAR_INIT(log_var_str); \ + log_do_begin(log_var) \ + log_impl_varargs((log_var).name, __VA_ARGS__); \ + log_do_end(log_var) \ +} while (0) + +#endif /* JEMALLOC_INTERNAL_LOG_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/malloc_io.h b/deps/jemalloc/include/jemalloc/internal/malloc_io.h new file mode 100644 index 0000000..a375bda --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/malloc_io.h @@ -0,0 +1,105 @@ +#ifndef JEMALLOC_INTERNAL_MALLOC_IO_H +#define JEMALLOC_INTERNAL_MALLOC_IO_H + +#include "jemalloc/internal/jemalloc_internal_types.h" + +#ifdef _WIN32 +# ifdef _WIN64 +# define FMT64_PREFIX "ll" +# define FMTPTR_PREFIX "ll" +# else +# define FMT64_PREFIX "ll" +# define FMTPTR_PREFIX "" +# endif +# define FMTd32 "d" +# define FMTu32 "u" +# define FMTx32 "x" +# define FMTd64 FMT64_PREFIX "d" +# define FMTu64 FMT64_PREFIX "u" +# define FMTx64 FMT64_PREFIX "x" +# define FMTdPTR FMTPTR_PREFIX "d" +# define FMTuPTR FMTPTR_PREFIX "u" +# define FMTxPTR FMTPTR_PREFIX "x" +#else +# include <inttypes.h> +# define FMTd32 PRId32 +# define FMTu32 PRIu32 +# define FMTx32 PRIx32 +# define FMTd64 PRId64 +# define FMTu64 PRIu64 +# define FMTx64 PRIx64 +# define FMTdPTR PRIdPTR +# define FMTuPTR PRIuPTR +# define FMTxPTR PRIxPTR +#endif + +/* Size of stack-allocated buffer passed to buferror(). */ +#define BUFERROR_BUF 64 + +/* + * Size of stack-allocated buffer used by malloc_{,v,vc}printf(). This must be + * large enough for all possible uses within jemalloc. + */ +#define MALLOC_PRINTF_BUFSIZE 4096 + +write_cb_t wrtmessage; +int buferror(int err, char *buf, size_t buflen); +uintmax_t malloc_strtoumax(const char *restrict nptr, char **restrict endptr, + int base); +void malloc_write(const char *s); + +/* + * malloc_vsnprintf() supports a subset of snprintf(3) that avoids floating + * point math. + */ +size_t malloc_vsnprintf(char *str, size_t size, const char *format, + va_list ap); +size_t malloc_snprintf(char *str, size_t size, const char *format, ...) + JEMALLOC_FORMAT_PRINTF(3, 4); +/* + * The caller can set write_cb to null to choose to print with the + * je_malloc_message hook. + */ +void malloc_vcprintf(write_cb_t *write_cb, void *cbopaque, const char *format, + va_list ap); +void malloc_cprintf(write_cb_t *write_cb, void *cbopaque, const char *format, + ...) JEMALLOC_FORMAT_PRINTF(3, 4); +void malloc_printf(const char *format, ...) JEMALLOC_FORMAT_PRINTF(1, 2); + +static inline ssize_t +malloc_write_fd(int fd, const void *buf, size_t count) { +#if defined(JEMALLOC_USE_SYSCALL) && defined(SYS_write) + /* + * Use syscall(2) rather than write(2) when possible in order to avoid + * the possibility of memory allocation within libc. This is necessary + * on FreeBSD; most operating systems do not have this problem though. + * + * syscall() returns long or int, depending on platform, so capture the + * result in the widest plausible type to avoid compiler warnings. + */ + long result = syscall(SYS_write, fd, buf, count); +#else + ssize_t result = (ssize_t)write(fd, buf, +#ifdef _WIN32 + (unsigned int) +#endif + count); +#endif + return (ssize_t)result; +} + +static inline ssize_t +malloc_read_fd(int fd, void *buf, size_t count) { +#if defined(JEMALLOC_USE_SYSCALL) && defined(SYS_read) + long result = syscall(SYS_read, fd, buf, count); +#else + ssize_t result = read(fd, buf, +#ifdef _WIN32 + (unsigned int) +#endif + count); +#endif + return (ssize_t)result; +} + +#endif /* JEMALLOC_INTERNAL_MALLOC_IO_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/mpsc_queue.h b/deps/jemalloc/include/jemalloc/internal/mpsc_queue.h new file mode 100644 index 0000000..316ea9b --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/mpsc_queue.h @@ -0,0 +1,134 @@ +#ifndef JEMALLOC_INTERNAL_MPSC_QUEUE_H +#define JEMALLOC_INTERNAL_MPSC_QUEUE_H + +#include "jemalloc/internal/atomic.h" + +/* + * A concurrent implementation of a multi-producer, single-consumer queue. It + * supports three concurrent operations: + * - Push + * - Push batch + * - Pop batch + * + * These operations are all lock-free. + * + * The implementation is the simple two-stack queue built on a Treiber stack. + * It's not terribly efficient, but this isn't expected to go into anywhere with + * hot code. In fact, we don't really even need queue semantics in any + * anticipated use cases; we could get away with just the stack. But this way + * lets us frame the API in terms of the existing list types, which is a nice + * convenience. We can save on cache misses by introducing our own (parallel) + * single-linked list type here, and dropping FIFO semantics, if we need this to + * get faster. Since we're currently providing queue semantics though, we use + * the prev field in the link rather than the next field for Treiber-stack + * linkage, so that we can preserve order for bash-pushed lists (recall that the + * two-stack tricks reverses orders in the lock-free first stack). + */ + +#define mpsc_queue(a_type) \ +struct { \ + atomic_p_t tail; \ +} + +#define mpsc_queue_proto(a_attr, a_prefix, a_queue_type, a_type, \ + a_list_type) \ +/* Initialize a queue. */ \ +a_attr void \ +a_prefix##new(a_queue_type *queue); \ +/* Insert all items in src into the queue, clearing src. */ \ +a_attr void \ +a_prefix##push_batch(a_queue_type *queue, a_list_type *src); \ +/* Insert node into the queue. */ \ +a_attr void \ +a_prefix##push(a_queue_type *queue, a_type *node); \ +/* \ + * Pop all items in the queue into the list at dst. dst should already \ + * be initialized (and may contain existing items, which then remain \ + * in dst). \ + */ \ +a_attr void \ +a_prefix##pop_batch(a_queue_type *queue, a_list_type *dst); + +#define mpsc_queue_gen(a_attr, a_prefix, a_queue_type, a_type, \ + a_list_type, a_link) \ +a_attr void \ +a_prefix##new(a_queue_type *queue) { \ + atomic_store_p(&queue->tail, NULL, ATOMIC_RELAXED); \ +} \ +a_attr void \ +a_prefix##push_batch(a_queue_type *queue, a_list_type *src) { \ + /* \ + * Reuse the ql list next field as the Treiber stack next \ + * field. \ + */ \ + a_type *first = ql_first(src); \ + a_type *last = ql_last(src, a_link); \ + void* cur_tail = atomic_load_p(&queue->tail, ATOMIC_RELAXED); \ + do { \ + /* \ + * Note that this breaks the queue ring structure; \ + * it's not a ring any more! \ + */ \ + first->a_link.qre_prev = cur_tail; \ + /* \ + * Note: the upcoming CAS doesn't need an atomic; every \ + * push only needs to synchronize with the next pop, \ + * which we get from the release sequence rules. \ + */ \ + } while (!atomic_compare_exchange_weak_p(&queue->tail, \ + &cur_tail, last, ATOMIC_RELEASE, ATOMIC_RELAXED)); \ + ql_new(src); \ +} \ +a_attr void \ +a_prefix##push(a_queue_type *queue, a_type *node) { \ + ql_elm_new(node, a_link); \ + a_list_type list; \ + ql_new(&list); \ + ql_head_insert(&list, node, a_link); \ + a_prefix##push_batch(queue, &list); \ +} \ +a_attr void \ +a_prefix##pop_batch(a_queue_type *queue, a_list_type *dst) { \ + a_type *tail = atomic_load_p(&queue->tail, ATOMIC_RELAXED); \ + if (tail == NULL) { \ + /* \ + * In the common special case where there are no \ + * pending elements, bail early without a costly RMW. \ + */ \ + return; \ + } \ + tail = atomic_exchange_p(&queue->tail, NULL, ATOMIC_ACQUIRE); \ + /* \ + * It's a single-consumer queue, so if cur started non-NULL, \ + * it'd better stay non-NULL. \ + */ \ + assert(tail != NULL); \ + /* \ + * We iterate through the stack and both fix up the link \ + * structure (stack insertion broke the list requirement that \ + * the list be circularly linked). It's just as efficient at \ + * this point to make the queue a "real" queue, so do that as \ + * well. \ + * If this ever gets to be a hot spot, we can omit this fixup \ + * and make the queue a bag (i.e. not necessarily ordered), but \ + * that would mean jettisoning the existing list API as the \ + * batch pushing/popping interface. \ + */ \ + a_list_type reversed; \ + ql_new(&reversed); \ + while (tail != NULL) { \ + /* \ + * Pop an item off the stack, prepend it onto the list \ + * (reversing the order). Recall that we use the \ + * list prev field as the Treiber stack next field to \ + * preserve order of batch-pushed items when reversed. \ + */ \ + a_type *next = tail->a_link.qre_prev; \ + ql_elm_new(tail, a_link); \ + ql_head_insert(&reversed, tail, a_link); \ + tail = next; \ + } \ + ql_concat(dst, &reversed, a_link); \ +} + +#endif /* JEMALLOC_INTERNAL_MPSC_QUEUE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/mutex.h b/deps/jemalloc/include/jemalloc/internal/mutex.h new file mode 100644 index 0000000..63a0b1b --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/mutex.h @@ -0,0 +1,319 @@ +#ifndef JEMALLOC_INTERNAL_MUTEX_H +#define JEMALLOC_INTERNAL_MUTEX_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/mutex_prof.h" +#include "jemalloc/internal/tsd.h" +#include "jemalloc/internal/witness.h" + +extern int64_t opt_mutex_max_spin; + +typedef enum { + /* Can only acquire one mutex of a given witness rank at a time. */ + malloc_mutex_rank_exclusive, + /* + * Can acquire multiple mutexes of the same witness rank, but in + * address-ascending order only. + */ + malloc_mutex_address_ordered +} malloc_mutex_lock_order_t; + +typedef struct malloc_mutex_s malloc_mutex_t; +struct malloc_mutex_s { + union { + struct { + /* + * prof_data is defined first to reduce cacheline + * bouncing: the data is not touched by the mutex holder + * during unlocking, while might be modified by + * contenders. Having it before the mutex itself could + * avoid prefetching a modified cacheline (for the + * unlocking thread). + */ + mutex_prof_data_t prof_data; +#ifdef _WIN32 +# if _WIN32_WINNT >= 0x0600 + SRWLOCK lock; +# else + CRITICAL_SECTION lock; +# endif +#elif (defined(JEMALLOC_OS_UNFAIR_LOCK)) + os_unfair_lock lock; +#elif (defined(JEMALLOC_MUTEX_INIT_CB)) + pthread_mutex_t lock; + malloc_mutex_t *postponed_next; +#else + pthread_mutex_t lock; +#endif + /* + * Hint flag to avoid exclusive cache line contention + * during spin waiting + */ + atomic_b_t locked; + }; + /* + * We only touch witness when configured w/ debug. However we + * keep the field in a union when !debug so that we don't have + * to pollute the code base with #ifdefs, while avoid paying the + * memory cost. + */ +#if !defined(JEMALLOC_DEBUG) + witness_t witness; + malloc_mutex_lock_order_t lock_order; +#endif + }; + +#if defined(JEMALLOC_DEBUG) + witness_t witness; + malloc_mutex_lock_order_t lock_order; +#endif +}; + +#ifdef _WIN32 +# if _WIN32_WINNT >= 0x0600 +# define MALLOC_MUTEX_LOCK(m) AcquireSRWLockExclusive(&(m)->lock) +# define MALLOC_MUTEX_UNLOCK(m) ReleaseSRWLockExclusive(&(m)->lock) +# define MALLOC_MUTEX_TRYLOCK(m) (!TryAcquireSRWLockExclusive(&(m)->lock)) +# else +# define MALLOC_MUTEX_LOCK(m) EnterCriticalSection(&(m)->lock) +# define MALLOC_MUTEX_UNLOCK(m) LeaveCriticalSection(&(m)->lock) +# define MALLOC_MUTEX_TRYLOCK(m) (!TryEnterCriticalSection(&(m)->lock)) +# endif +#elif (defined(JEMALLOC_OS_UNFAIR_LOCK)) +# define MALLOC_MUTEX_LOCK(m) os_unfair_lock_lock(&(m)->lock) +# define MALLOC_MUTEX_UNLOCK(m) os_unfair_lock_unlock(&(m)->lock) +# define MALLOC_MUTEX_TRYLOCK(m) (!os_unfair_lock_trylock(&(m)->lock)) +#else +# define MALLOC_MUTEX_LOCK(m) pthread_mutex_lock(&(m)->lock) +# define MALLOC_MUTEX_UNLOCK(m) pthread_mutex_unlock(&(m)->lock) +# define MALLOC_MUTEX_TRYLOCK(m) (pthread_mutex_trylock(&(m)->lock) != 0) +#endif + +#define LOCK_PROF_DATA_INITIALIZER \ + {NSTIME_ZERO_INITIALIZER, NSTIME_ZERO_INITIALIZER, 0, 0, 0, \ + ATOMIC_INIT(0), 0, NULL, 0} + +#ifdef _WIN32 +# define MALLOC_MUTEX_INITIALIZER +#elif (defined(JEMALLOC_OS_UNFAIR_LOCK)) +# if defined(JEMALLOC_DEBUG) +# define MALLOC_MUTEX_INITIALIZER \ + {{{LOCK_PROF_DATA_INITIALIZER, OS_UNFAIR_LOCK_INIT, ATOMIC_INIT(false)}}, \ + WITNESS_INITIALIZER("mutex", WITNESS_RANK_OMIT), 0} +# else +# define MALLOC_MUTEX_INITIALIZER \ + {{{LOCK_PROF_DATA_INITIALIZER, OS_UNFAIR_LOCK_INIT, ATOMIC_INIT(false)}}, \ + WITNESS_INITIALIZER("mutex", WITNESS_RANK_OMIT)} +# endif +#elif (defined(JEMALLOC_MUTEX_INIT_CB)) +# if (defined(JEMALLOC_DEBUG)) +# define MALLOC_MUTEX_INITIALIZER \ + {{{LOCK_PROF_DATA_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, NULL, ATOMIC_INIT(false)}}, \ + WITNESS_INITIALIZER("mutex", WITNESS_RANK_OMIT), 0} +# else +# define MALLOC_MUTEX_INITIALIZER \ + {{{LOCK_PROF_DATA_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, NULL, ATOMIC_INIT(false)}}, \ + WITNESS_INITIALIZER("mutex", WITNESS_RANK_OMIT)} +# endif + +#else +# define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_DEFAULT +# if defined(JEMALLOC_DEBUG) +# define MALLOC_MUTEX_INITIALIZER \ + {{{LOCK_PROF_DATA_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, ATOMIC_INIT(false)}}, \ + WITNESS_INITIALIZER("mutex", WITNESS_RANK_OMIT), 0} +# else +# define MALLOC_MUTEX_INITIALIZER \ + {{{LOCK_PROF_DATA_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, ATOMIC_INIT(false)}}, \ + WITNESS_INITIALIZER("mutex", WITNESS_RANK_OMIT)} +# endif +#endif + +#ifdef JEMALLOC_LAZY_LOCK +extern bool isthreaded; +#else +# undef isthreaded /* Undo private_namespace.h definition. */ +# define isthreaded true +#endif + +bool malloc_mutex_init(malloc_mutex_t *mutex, const char *name, + witness_rank_t rank, malloc_mutex_lock_order_t lock_order); +void malloc_mutex_prefork(tsdn_t *tsdn, malloc_mutex_t *mutex); +void malloc_mutex_postfork_parent(tsdn_t *tsdn, malloc_mutex_t *mutex); +void malloc_mutex_postfork_child(tsdn_t *tsdn, malloc_mutex_t *mutex); +bool malloc_mutex_boot(void); +void malloc_mutex_prof_data_reset(tsdn_t *tsdn, malloc_mutex_t *mutex); + +void malloc_mutex_lock_slow(malloc_mutex_t *mutex); + +static inline void +malloc_mutex_lock_final(malloc_mutex_t *mutex) { + MALLOC_MUTEX_LOCK(mutex); + atomic_store_b(&mutex->locked, true, ATOMIC_RELAXED); +} + +static inline bool +malloc_mutex_trylock_final(malloc_mutex_t *mutex) { + return MALLOC_MUTEX_TRYLOCK(mutex); +} + +static inline void +mutex_owner_stats_update(tsdn_t *tsdn, malloc_mutex_t *mutex) { + if (config_stats) { + mutex_prof_data_t *data = &mutex->prof_data; + data->n_lock_ops++; + if (data->prev_owner != tsdn) { + data->prev_owner = tsdn; + data->n_owner_switches++; + } + } +} + +/* Trylock: return false if the lock is successfully acquired. */ +static inline bool +malloc_mutex_trylock(tsdn_t *tsdn, malloc_mutex_t *mutex) { + witness_assert_not_owner(tsdn_witness_tsdp_get(tsdn), &mutex->witness); + if (isthreaded) { + if (malloc_mutex_trylock_final(mutex)) { + atomic_store_b(&mutex->locked, true, ATOMIC_RELAXED); + return true; + } + mutex_owner_stats_update(tsdn, mutex); + } + witness_lock(tsdn_witness_tsdp_get(tsdn), &mutex->witness); + + return false; +} + +/* Aggregate lock prof data. */ +static inline void +malloc_mutex_prof_merge(mutex_prof_data_t *sum, mutex_prof_data_t *data) { + nstime_add(&sum->tot_wait_time, &data->tot_wait_time); + if (nstime_compare(&sum->max_wait_time, &data->max_wait_time) < 0) { + nstime_copy(&sum->max_wait_time, &data->max_wait_time); + } + + sum->n_wait_times += data->n_wait_times; + sum->n_spin_acquired += data->n_spin_acquired; + + if (sum->max_n_thds < data->max_n_thds) { + sum->max_n_thds = data->max_n_thds; + } + uint32_t cur_n_waiting_thds = atomic_load_u32(&sum->n_waiting_thds, + ATOMIC_RELAXED); + uint32_t new_n_waiting_thds = cur_n_waiting_thds + atomic_load_u32( + &data->n_waiting_thds, ATOMIC_RELAXED); + atomic_store_u32(&sum->n_waiting_thds, new_n_waiting_thds, + ATOMIC_RELAXED); + sum->n_owner_switches += data->n_owner_switches; + sum->n_lock_ops += data->n_lock_ops; +} + +static inline void +malloc_mutex_lock(tsdn_t *tsdn, malloc_mutex_t *mutex) { + witness_assert_not_owner(tsdn_witness_tsdp_get(tsdn), &mutex->witness); + if (isthreaded) { + if (malloc_mutex_trylock_final(mutex)) { + malloc_mutex_lock_slow(mutex); + atomic_store_b(&mutex->locked, true, ATOMIC_RELAXED); + } + mutex_owner_stats_update(tsdn, mutex); + } + witness_lock(tsdn_witness_tsdp_get(tsdn), &mutex->witness); +} + +static inline void +malloc_mutex_unlock(tsdn_t *tsdn, malloc_mutex_t *mutex) { + atomic_store_b(&mutex->locked, false, ATOMIC_RELAXED); + witness_unlock(tsdn_witness_tsdp_get(tsdn), &mutex->witness); + if (isthreaded) { + MALLOC_MUTEX_UNLOCK(mutex); + } +} + +static inline void +malloc_mutex_assert_owner(tsdn_t *tsdn, malloc_mutex_t *mutex) { + witness_assert_owner(tsdn_witness_tsdp_get(tsdn), &mutex->witness); +} + +static inline void +malloc_mutex_assert_not_owner(tsdn_t *tsdn, malloc_mutex_t *mutex) { + witness_assert_not_owner(tsdn_witness_tsdp_get(tsdn), &mutex->witness); +} + +static inline void +malloc_mutex_prof_copy(mutex_prof_data_t *dst, mutex_prof_data_t *source) { + /* + * Not *really* allowed (we shouldn't be doing non-atomic loads of + * atomic data), but the mutex protection makes this safe, and writing + * a member-for-member copy is tedious for this situation. + */ + *dst = *source; + /* n_wait_thds is not reported (modified w/o locking). */ + atomic_store_u32(&dst->n_waiting_thds, 0, ATOMIC_RELAXED); +} + +/* Copy the prof data from mutex for processing. */ +static inline void +malloc_mutex_prof_read(tsdn_t *tsdn, mutex_prof_data_t *data, + malloc_mutex_t *mutex) { + /* Can only read holding the mutex. */ + malloc_mutex_assert_owner(tsdn, mutex); + malloc_mutex_prof_copy(data, &mutex->prof_data); +} + +static inline void +malloc_mutex_prof_accum(tsdn_t *tsdn, mutex_prof_data_t *data, + malloc_mutex_t *mutex) { + mutex_prof_data_t *source = &mutex->prof_data; + /* Can only read holding the mutex. */ + malloc_mutex_assert_owner(tsdn, mutex); + + nstime_add(&data->tot_wait_time, &source->tot_wait_time); + if (nstime_compare(&source->max_wait_time, &data->max_wait_time) > 0) { + nstime_copy(&data->max_wait_time, &source->max_wait_time); + } + data->n_wait_times += source->n_wait_times; + data->n_spin_acquired += source->n_spin_acquired; + if (data->max_n_thds < source->max_n_thds) { + data->max_n_thds = source->max_n_thds; + } + /* n_wait_thds is not reported. */ + atomic_store_u32(&data->n_waiting_thds, 0, ATOMIC_RELAXED); + data->n_owner_switches += source->n_owner_switches; + data->n_lock_ops += source->n_lock_ops; +} + +/* Compare the prof data and update to the maximum. */ +static inline void +malloc_mutex_prof_max_update(tsdn_t *tsdn, mutex_prof_data_t *data, + malloc_mutex_t *mutex) { + mutex_prof_data_t *source = &mutex->prof_data; + /* Can only read holding the mutex. */ + malloc_mutex_assert_owner(tsdn, mutex); + + if (nstime_compare(&source->tot_wait_time, &data->tot_wait_time) > 0) { + nstime_copy(&data->tot_wait_time, &source->tot_wait_time); + } + if (nstime_compare(&source->max_wait_time, &data->max_wait_time) > 0) { + nstime_copy(&data->max_wait_time, &source->max_wait_time); + } + if (source->n_wait_times > data->n_wait_times) { + data->n_wait_times = source->n_wait_times; + } + if (source->n_spin_acquired > data->n_spin_acquired) { + data->n_spin_acquired = source->n_spin_acquired; + } + if (source->max_n_thds > data->max_n_thds) { + data->max_n_thds = source->max_n_thds; + } + if (source->n_owner_switches > data->n_owner_switches) { + data->n_owner_switches = source->n_owner_switches; + } + if (source->n_lock_ops > data->n_lock_ops) { + data->n_lock_ops = source->n_lock_ops; + } + /* n_wait_thds is not reported. */ +} + +#endif /* JEMALLOC_INTERNAL_MUTEX_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/mutex_prof.h b/deps/jemalloc/include/jemalloc/internal/mutex_prof.h new file mode 100644 index 0000000..4a526a5 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/mutex_prof.h @@ -0,0 +1,117 @@ +#ifndef JEMALLOC_INTERNAL_MUTEX_PROF_H +#define JEMALLOC_INTERNAL_MUTEX_PROF_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/nstime.h" +#include "jemalloc/internal/tsd_types.h" + +#define MUTEX_PROF_GLOBAL_MUTEXES \ + OP(background_thread) \ + OP(max_per_bg_thd) \ + OP(ctl) \ + OP(prof) \ + OP(prof_thds_data) \ + OP(prof_dump) \ + OP(prof_recent_alloc) \ + OP(prof_recent_dump) \ + OP(prof_stats) + +typedef enum { +#define OP(mtx) global_prof_mutex_##mtx, + MUTEX_PROF_GLOBAL_MUTEXES +#undef OP + mutex_prof_num_global_mutexes +} mutex_prof_global_ind_t; + +#define MUTEX_PROF_ARENA_MUTEXES \ + OP(large) \ + OP(extent_avail) \ + OP(extents_dirty) \ + OP(extents_muzzy) \ + OP(extents_retained) \ + OP(decay_dirty) \ + OP(decay_muzzy) \ + OP(base) \ + OP(tcache_list) \ + OP(hpa_shard) \ + OP(hpa_shard_grow) \ + OP(hpa_sec) + +typedef enum { +#define OP(mtx) arena_prof_mutex_##mtx, + MUTEX_PROF_ARENA_MUTEXES +#undef OP + mutex_prof_num_arena_mutexes +} mutex_prof_arena_ind_t; + +/* + * The forth parameter is a boolean value that is true for derived rate counters + * and false for real ones. + */ +#define MUTEX_PROF_UINT64_COUNTERS \ + OP(num_ops, uint64_t, "n_lock_ops", false, num_ops) \ + OP(num_ops_ps, uint64_t, "(#/sec)", true, num_ops) \ + OP(num_wait, uint64_t, "n_waiting", false, num_wait) \ + OP(num_wait_ps, uint64_t, "(#/sec)", true, num_wait) \ + OP(num_spin_acq, uint64_t, "n_spin_acq", false, num_spin_acq) \ + OP(num_spin_acq_ps, uint64_t, "(#/sec)", true, num_spin_acq) \ + OP(num_owner_switch, uint64_t, "n_owner_switch", false, num_owner_switch) \ + OP(num_owner_switch_ps, uint64_t, "(#/sec)", true, num_owner_switch) \ + OP(total_wait_time, uint64_t, "total_wait_ns", false, total_wait_time) \ + OP(total_wait_time_ps, uint64_t, "(#/sec)", true, total_wait_time) \ + OP(max_wait_time, uint64_t, "max_wait_ns", false, max_wait_time) + +#define MUTEX_PROF_UINT32_COUNTERS \ + OP(max_num_thds, uint32_t, "max_n_thds", false, max_num_thds) + +#define MUTEX_PROF_COUNTERS \ + MUTEX_PROF_UINT64_COUNTERS \ + MUTEX_PROF_UINT32_COUNTERS + +#define OP(counter, type, human, derived, base_counter) mutex_counter_##counter, + +#define COUNTER_ENUM(counter_list, t) \ + typedef enum { \ + counter_list \ + mutex_prof_num_##t##_counters \ + } mutex_prof_##t##_counter_ind_t; + +COUNTER_ENUM(MUTEX_PROF_UINT64_COUNTERS, uint64_t) +COUNTER_ENUM(MUTEX_PROF_UINT32_COUNTERS, uint32_t) + +#undef COUNTER_ENUM +#undef OP + +typedef struct { + /* + * Counters touched on the slow path, i.e. when there is lock + * contention. We update them once we have the lock. + */ + /* Total time (in nano seconds) spent waiting on this mutex. */ + nstime_t tot_wait_time; + /* Max time (in nano seconds) spent on a single lock operation. */ + nstime_t max_wait_time; + /* # of times have to wait for this mutex (after spinning). */ + uint64_t n_wait_times; + /* # of times acquired the mutex through local spinning. */ + uint64_t n_spin_acquired; + /* Max # of threads waiting for the mutex at the same time. */ + uint32_t max_n_thds; + /* Current # of threads waiting on the lock. Atomic synced. */ + atomic_u32_t n_waiting_thds; + + /* + * Data touched on the fast path. These are modified right after we + * grab the lock, so it's placed closest to the end (i.e. right before + * the lock) so that we have a higher chance of them being on the same + * cacheline. + */ + /* # of times the mutex holder is different than the previous one. */ + uint64_t n_owner_switches; + /* Previous mutex holder, to facilitate n_owner_switches. */ + tsdn_t *prev_owner; + /* # of lock() operations in total. */ + uint64_t n_lock_ops; +} mutex_prof_data_t; + +#endif /* JEMALLOC_INTERNAL_MUTEX_PROF_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/nstime.h b/deps/jemalloc/include/jemalloc/internal/nstime.h new file mode 100644 index 0000000..486e5cc --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/nstime.h @@ -0,0 +1,73 @@ +#ifndef JEMALLOC_INTERNAL_NSTIME_H +#define JEMALLOC_INTERNAL_NSTIME_H + +/* Maximum supported number of seconds (~584 years). */ +#define NSTIME_SEC_MAX KQU(18446744072) + +#define NSTIME_MAGIC ((uint32_t)0xb8a9ce37) +#ifdef JEMALLOC_DEBUG +# define NSTIME_ZERO_INITIALIZER {0, NSTIME_MAGIC} +#else +# define NSTIME_ZERO_INITIALIZER {0} +#endif + +typedef struct { + uint64_t ns; +#ifdef JEMALLOC_DEBUG + uint32_t magic; /* Tracks if initialized. */ +#endif +} nstime_t; + +static const nstime_t nstime_zero = NSTIME_ZERO_INITIALIZER; + +void nstime_init(nstime_t *time, uint64_t ns); +void nstime_init2(nstime_t *time, uint64_t sec, uint64_t nsec); +uint64_t nstime_ns(const nstime_t *time); +uint64_t nstime_sec(const nstime_t *time); +uint64_t nstime_msec(const nstime_t *time); +uint64_t nstime_nsec(const nstime_t *time); +void nstime_copy(nstime_t *time, const nstime_t *source); +int nstime_compare(const nstime_t *a, const nstime_t *b); +void nstime_add(nstime_t *time, const nstime_t *addend); +void nstime_iadd(nstime_t *time, uint64_t addend); +void nstime_subtract(nstime_t *time, const nstime_t *subtrahend); +void nstime_isubtract(nstime_t *time, uint64_t subtrahend); +void nstime_imultiply(nstime_t *time, uint64_t multiplier); +void nstime_idivide(nstime_t *time, uint64_t divisor); +uint64_t nstime_divide(const nstime_t *time, const nstime_t *divisor); +uint64_t nstime_ns_since(const nstime_t *past); + +typedef bool (nstime_monotonic_t)(void); +extern nstime_monotonic_t *JET_MUTABLE nstime_monotonic; + +typedef void (nstime_update_t)(nstime_t *); +extern nstime_update_t *JET_MUTABLE nstime_update; + +typedef void (nstime_prof_update_t)(nstime_t *); +extern nstime_prof_update_t *JET_MUTABLE nstime_prof_update; + +void nstime_init_update(nstime_t *time); +void nstime_prof_init_update(nstime_t *time); + +enum prof_time_res_e { + prof_time_res_default = 0, + prof_time_res_high = 1 +}; +typedef enum prof_time_res_e prof_time_res_t; + +extern prof_time_res_t opt_prof_time_res; +extern const char *prof_time_res_mode_names[]; + +JEMALLOC_ALWAYS_INLINE void +nstime_init_zero(nstime_t *time) { + nstime_copy(time, &nstime_zero); +} + +JEMALLOC_ALWAYS_INLINE bool +nstime_equals_zero(nstime_t *time) { + int diff = nstime_compare(time, &nstime_zero); + assert(diff >= 0); + return diff == 0; +} + +#endif /* JEMALLOC_INTERNAL_NSTIME_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/pa.h b/deps/jemalloc/include/jemalloc/internal/pa.h new file mode 100644 index 0000000..4748a05 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/pa.h @@ -0,0 +1,243 @@ +#ifndef JEMALLOC_INTERNAL_PA_H +#define JEMALLOC_INTERNAL_PA_H + +#include "jemalloc/internal/base.h" +#include "jemalloc/internal/decay.h" +#include "jemalloc/internal/ecache.h" +#include "jemalloc/internal/edata_cache.h" +#include "jemalloc/internal/emap.h" +#include "jemalloc/internal/hpa.h" +#include "jemalloc/internal/lockedint.h" +#include "jemalloc/internal/pac.h" +#include "jemalloc/internal/pai.h" +#include "jemalloc/internal/sec.h" + +/* + * The page allocator; responsible for acquiring pages of memory for + * allocations. It picks the implementation of the page allocator interface + * (i.e. a pai_t) to handle a given page-level allocation request. For now, the + * only such implementation is the PAC code ("page allocator classic"), but + * others will be coming soon. + */ + +typedef struct pa_central_s pa_central_t; +struct pa_central_s { + hpa_central_t hpa; +}; + +/* + * The stats for a particular pa_shard. Because of the way the ctl module + * handles stats epoch data collection (it has its own arena_stats, and merges + * the stats from each arena into it), this needs to live in the arena_stats_t; + * hence we define it here and let the pa_shard have a pointer (rather than the + * more natural approach of just embedding it in the pa_shard itself). + * + * We follow the arena_stats_t approach of marking the derived fields. These + * are the ones that are not maintained on their own; instead, their values are + * derived during those stats merges. + */ +typedef struct pa_shard_stats_s pa_shard_stats_t; +struct pa_shard_stats_s { + /* Number of edata_t structs allocated by base, but not being used. */ + size_t edata_avail; /* Derived. */ + /* + * Stats specific to the PAC. For now, these are the only stats that + * exist, but there will eventually be other page allocators. Things + * like edata_avail make sense in a cross-PA sense, but things like + * npurges don't. + */ + pac_stats_t pac_stats; +}; + +/* + * The local allocator handle. Keeps the state necessary to satisfy page-sized + * allocations. + * + * The contents are mostly internal to the PA module. The key exception is that + * arena decay code is allowed to grab pointers to the dirty and muzzy ecaches + * decay_ts, for a couple of queries, passing them back to a PA function, or + * acquiring decay.mtx and looking at decay.purging. The reasoning is that, + * while PA decides what and how to purge, the arena code decides when and where + * (e.g. on what thread). It's allowed to use the presence of another purger to + * decide. + * (The background thread code also touches some other decay internals, but + * that's not fundamental; its' just an artifact of a partial refactoring, and + * its accesses could be straightforwardly moved inside the decay module). + */ +typedef struct pa_shard_s pa_shard_t; +struct pa_shard_s { + /* The central PA this shard is associated with. */ + pa_central_t *central; + + /* + * Number of pages in active extents. + * + * Synchronization: atomic. + */ + atomic_zu_t nactive; + + /* + * Whether or not we should prefer the hugepage allocator. Atomic since + * it may be concurrently modified by a thread setting extent hooks. + * Note that we still may do HPA operations in this arena; if use_hpa is + * changed from true to false, we'll free back to the hugepage allocator + * for those allocations. + */ + atomic_b_t use_hpa; + + /* + * If we never used the HPA to begin with, it wasn't initialized, and so + * we shouldn't try to e.g. acquire its mutexes during fork. This + * tracks that knowledge. + */ + bool ever_used_hpa; + + /* Allocates from a PAC. */ + pac_t pac; + + /* + * We place a small extent cache in front of the HPA, since we intend + * these configurations to use many fewer arenas, and therefore have a + * higher risk of hot locks. + */ + sec_t hpa_sec; + hpa_shard_t hpa_shard; + + /* The source of edata_t objects. */ + edata_cache_t edata_cache; + + unsigned ind; + + malloc_mutex_t *stats_mtx; + pa_shard_stats_t *stats; + + /* The emap this shard is tied to. */ + emap_t *emap; + + /* The base from which we get the ehooks and allocate metadat. */ + base_t *base; +}; + +static inline bool +pa_shard_dont_decay_muzzy(pa_shard_t *shard) { + return ecache_npages_get(&shard->pac.ecache_muzzy) == 0 && + pac_decay_ms_get(&shard->pac, extent_state_muzzy) <= 0; +} + +static inline ehooks_t * +pa_shard_ehooks_get(pa_shard_t *shard) { + return base_ehooks_get(shard->base); +} + +/* Returns true on error. */ +bool pa_central_init(pa_central_t *central, base_t *base, bool hpa, + hpa_hooks_t *hpa_hooks); + +/* Returns true on error. */ +bool pa_shard_init(tsdn_t *tsdn, pa_shard_t *shard, pa_central_t *central, + emap_t *emap, base_t *base, unsigned ind, pa_shard_stats_t *stats, + malloc_mutex_t *stats_mtx, nstime_t *cur_time, size_t oversize_threshold, + ssize_t dirty_decay_ms, ssize_t muzzy_decay_ms); + +/* + * This isn't exposed to users; we allow late enablement of the HPA shard so + * that we can boot without worrying about the HPA, then turn it on in a0. + */ +bool pa_shard_enable_hpa(tsdn_t *tsdn, pa_shard_t *shard, + const hpa_shard_opts_t *hpa_opts, const sec_opts_t *hpa_sec_opts); + +/* + * We stop using the HPA when custom extent hooks are installed, but still + * redirect deallocations to it. + */ +void pa_shard_disable_hpa(tsdn_t *tsdn, pa_shard_t *shard); + +/* + * This does the PA-specific parts of arena reset (i.e. freeing all active + * allocations). + */ +void pa_shard_reset(tsdn_t *tsdn, pa_shard_t *shard); + +/* + * Destroy all the remaining retained extents. Should only be called after + * decaying all active, dirty, and muzzy extents to the retained state, as the + * last step in destroying the shard. + */ +void pa_shard_destroy(tsdn_t *tsdn, pa_shard_t *shard); + +/* Gets an edata for the given allocation. */ +edata_t *pa_alloc(tsdn_t *tsdn, pa_shard_t *shard, size_t size, + size_t alignment, bool slab, szind_t szind, bool zero, bool guarded, + bool *deferred_work_generated); +/* Returns true on error, in which case nothing changed. */ +bool pa_expand(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, size_t old_size, + size_t new_size, szind_t szind, bool zero, bool *deferred_work_generated); +/* + * The same. Sets *generated_dirty to true if we produced new dirty pages, and + * false otherwise. + */ +bool pa_shrink(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, size_t old_size, + size_t new_size, szind_t szind, bool *deferred_work_generated); +/* + * Frees the given edata back to the pa. Sets *generated_dirty if we produced + * new dirty pages (well, we always set it for now; but this need not be the + * case). + * (We could make generated_dirty the return value of course, but this is more + * consistent with the shrink pathway and our error codes here). + */ +void pa_dalloc(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, + bool *deferred_work_generated); +bool pa_decay_ms_set(tsdn_t *tsdn, pa_shard_t *shard, extent_state_t state, + ssize_t decay_ms, pac_purge_eagerness_t eagerness); +ssize_t pa_decay_ms_get(pa_shard_t *shard, extent_state_t state); + +/* + * Do deferred work on this PA shard. + * + * Morally, this should do both PAC decay and the HPA deferred work. For now, + * though, the arena, background thread, and PAC modules are tightly interwoven + * in a way that's tricky to extricate, so we only do the HPA-specific parts. + */ +void pa_shard_set_deferral_allowed(tsdn_t *tsdn, pa_shard_t *shard, + bool deferral_allowed); +void pa_shard_do_deferred_work(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_try_deferred_work(tsdn_t *tsdn, pa_shard_t *shard); +uint64_t pa_shard_time_until_deferred_work(tsdn_t *tsdn, pa_shard_t *shard); + +/******************************************************************************/ +/* + * Various bits of "boring" functionality that are still part of this module, + * but that we relegate to pa_extra.c, to keep the core logic in pa.c as + * readable as possible. + */ + +/* + * These fork phases are synchronized with the arena fork phase numbering to + * make it easy to keep straight. That's why there's no prefork1. + */ +void pa_shard_prefork0(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_prefork2(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_prefork3(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_prefork4(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_prefork5(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_postfork_parent(tsdn_t *tsdn, pa_shard_t *shard); +void pa_shard_postfork_child(tsdn_t *tsdn, pa_shard_t *shard); + +void pa_shard_basic_stats_merge(pa_shard_t *shard, size_t *nactive, + size_t *ndirty, size_t *nmuzzy); + +void pa_shard_stats_merge(tsdn_t *tsdn, pa_shard_t *shard, + pa_shard_stats_t *pa_shard_stats_out, pac_estats_t *estats_out, + hpa_shard_stats_t *hpa_stats_out, sec_stats_t *sec_stats_out, + size_t *resident); + +/* + * Reads the PA-owned mutex stats into the output stats array, at the + * appropriate positions. Morally, these stats should really live in + * pa_shard_stats_t, but the indices are sort of baked into the various mutex + * prof macros. This would be a good thing to do at some point. + */ +void pa_shard_mtx_stats_read(tsdn_t *tsdn, pa_shard_t *shard, + mutex_prof_data_t mutex_prof_data[mutex_prof_num_arena_mutexes]); + +#endif /* JEMALLOC_INTERNAL_PA_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/pac.h b/deps/jemalloc/include/jemalloc/internal/pac.h new file mode 100644 index 0000000..01c4e6a --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/pac.h @@ -0,0 +1,179 @@ +#ifndef JEMALLOC_INTERNAL_PAC_H +#define JEMALLOC_INTERNAL_PAC_H + +#include "jemalloc/internal/exp_grow.h" +#include "jemalloc/internal/pai.h" +#include "san_bump.h" + + +/* + * Page allocator classic; an implementation of the PAI interface that: + * - Can be used for arenas with custom extent hooks. + * - Can always satisfy any allocation request (including highly-fragmentary + * ones). + * - Can use efficient OS-level zeroing primitives for demand-filled pages. + */ + +/* How "eager" decay/purging should be. */ +enum pac_purge_eagerness_e { + PAC_PURGE_ALWAYS, + PAC_PURGE_NEVER, + PAC_PURGE_ON_EPOCH_ADVANCE +}; +typedef enum pac_purge_eagerness_e pac_purge_eagerness_t; + +typedef struct pac_decay_stats_s pac_decay_stats_t; +struct pac_decay_stats_s { + /* Total number of purge sweeps. */ + locked_u64_t npurge; + /* Total number of madvise calls made. */ + locked_u64_t nmadvise; + /* Total number of pages purged. */ + locked_u64_t purged; +}; + +typedef struct pac_estats_s pac_estats_t; +struct pac_estats_s { + /* + * Stats for a given index in the range [0, SC_NPSIZES] in the various + * ecache_ts. + * We track both bytes and # of extents: two extents in the same bucket + * may have different sizes if adjacent size classes differ by more than + * a page, so bytes cannot always be derived from # of extents. + */ + size_t ndirty; + size_t dirty_bytes; + size_t nmuzzy; + size_t muzzy_bytes; + size_t nretained; + size_t retained_bytes; +}; + +typedef struct pac_stats_s pac_stats_t; +struct pac_stats_s { + pac_decay_stats_t decay_dirty; + pac_decay_stats_t decay_muzzy; + + /* + * Number of unused virtual memory bytes currently retained. Retained + * bytes are technically mapped (though always decommitted or purged), + * but they are excluded from the mapped statistic (above). + */ + size_t retained; /* Derived. */ + + /* + * Number of bytes currently mapped, excluding retained memory (and any + * base-allocated memory, which is tracked by the arena stats). + * + * We name this "pac_mapped" to avoid confusion with the arena_stats + * "mapped". + */ + atomic_zu_t pac_mapped; + + /* VM space had to be leaked (undocumented). Normally 0. */ + atomic_zu_t abandoned_vm; +}; + +typedef struct pac_s pac_t; +struct pac_s { + /* + * Must be the first member (we convert it to a PAC given only a + * pointer). The handle to the allocation interface. + */ + pai_t pai; + /* + * Collections of extents that were previously allocated. These are + * used when allocating extents, in an attempt to re-use address space. + * + * Synchronization: internal. + */ + ecache_t ecache_dirty; + ecache_t ecache_muzzy; + ecache_t ecache_retained; + + base_t *base; + emap_t *emap; + edata_cache_t *edata_cache; + + /* The grow info for the retained ecache. */ + exp_grow_t exp_grow; + malloc_mutex_t grow_mtx; + + /* Special allocator for guarded frequently reused extents. */ + san_bump_alloc_t sba; + + /* How large extents should be before getting auto-purged. */ + atomic_zu_t oversize_threshold; + + /* + * Decay-based purging state, responsible for scheduling extent state + * transitions. + * + * Synchronization: via the internal mutex. + */ + decay_t decay_dirty; /* dirty --> muzzy */ + decay_t decay_muzzy; /* muzzy --> retained */ + + malloc_mutex_t *stats_mtx; + pac_stats_t *stats; + + /* Extent serial number generator state. */ + atomic_zu_t extent_sn_next; +}; + +bool pac_init(tsdn_t *tsdn, pac_t *pac, base_t *base, emap_t *emap, + edata_cache_t *edata_cache, nstime_t *cur_time, size_t oversize_threshold, + ssize_t dirty_decay_ms, ssize_t muzzy_decay_ms, pac_stats_t *pac_stats, + malloc_mutex_t *stats_mtx); + +static inline size_t +pac_mapped(pac_t *pac) { + return atomic_load_zu(&pac->stats->pac_mapped, ATOMIC_RELAXED); +} + +static inline ehooks_t * +pac_ehooks_get(pac_t *pac) { + return base_ehooks_get(pac->base); +} + +/* + * All purging functions require holding decay->mtx. This is one of the few + * places external modules are allowed to peek inside pa_shard_t internals. + */ + +/* + * Decays the number of pages currently in the ecache. This might not leave the + * ecache empty if other threads are inserting dirty objects into it + * concurrently with the call. + */ +void pac_decay_all(tsdn_t *tsdn, pac_t *pac, decay_t *decay, + pac_decay_stats_t *decay_stats, ecache_t *ecache, bool fully_decay); +/* + * Updates decay settings for the current time, and conditionally purges in + * response (depending on decay_purge_setting). Returns whether or not the + * epoch advanced. + */ +bool pac_maybe_decay_purge(tsdn_t *tsdn, pac_t *pac, decay_t *decay, + pac_decay_stats_t *decay_stats, ecache_t *ecache, + pac_purge_eagerness_t eagerness); + +/* + * Gets / sets the maximum amount that we'll grow an arena down the + * grow-retained pathways (unless forced to by an allocaction request). + * + * Set new_limit to NULL if it's just a query, or old_limit to NULL if you don't + * care about the previous value. + * + * Returns true on error (if the new limit is not valid). + */ +bool pac_retain_grow_limit_get_set(tsdn_t *tsdn, pac_t *pac, size_t *old_limit, + size_t *new_limit); + +bool pac_decay_ms_set(tsdn_t *tsdn, pac_t *pac, extent_state_t state, + ssize_t decay_ms, pac_purge_eagerness_t eagerness); +ssize_t pac_decay_ms_get(pac_t *pac, extent_state_t state); + +void pac_reset(tsdn_t *tsdn, pac_t *pac); +void pac_destroy(tsdn_t *tsdn, pac_t *pac); + +#endif /* JEMALLOC_INTERNAL_PAC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/pages.h b/deps/jemalloc/include/jemalloc/internal/pages.h new file mode 100644 index 0000000..ad1f606 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/pages.h @@ -0,0 +1,119 @@ +#ifndef JEMALLOC_INTERNAL_PAGES_EXTERNS_H +#define JEMALLOC_INTERNAL_PAGES_EXTERNS_H + +/* Page size. LG_PAGE is determined by the configure script. */ +#ifdef PAGE_MASK +# undef PAGE_MASK +#endif +#define PAGE ((size_t)(1U << LG_PAGE)) +#define PAGE_MASK ((size_t)(PAGE - 1)) +/* Return the page base address for the page containing address a. */ +#define PAGE_ADDR2BASE(a) \ + ((void *)((uintptr_t)(a) & ~PAGE_MASK)) +/* Return the smallest pagesize multiple that is >= s. */ +#define PAGE_CEILING(s) \ + (((s) + PAGE_MASK) & ~PAGE_MASK) +/* Return the largest pagesize multiple that is <=s. */ +#define PAGE_FLOOR(s) \ + ((s) & ~PAGE_MASK) + +/* Huge page size. LG_HUGEPAGE is determined by the configure script. */ +#define HUGEPAGE ((size_t)(1U << LG_HUGEPAGE)) +#define HUGEPAGE_MASK ((size_t)(HUGEPAGE - 1)) + +#if LG_HUGEPAGE != 0 +# define HUGEPAGE_PAGES (HUGEPAGE / PAGE) +#else +/* + * It's convenient to define arrays (or bitmaps) of HUGEPAGE_PAGES lengths. If + * we can't autodetect the hugepage size, it gets treated as 0, in which case + * we'll trigger a compiler error in those arrays. Avoid this case by ensuring + * that this value is at least 1. (We won't ever run in this degraded state; + * hpa_supported() returns false in this case. + */ +# define HUGEPAGE_PAGES 1 +#endif + +/* Return the huge page base address for the huge page containing address a. */ +#define HUGEPAGE_ADDR2BASE(a) \ + ((void *)((uintptr_t)(a) & ~HUGEPAGE_MASK)) +/* Return the smallest pagesize multiple that is >= s. */ +#define HUGEPAGE_CEILING(s) \ + (((s) + HUGEPAGE_MASK) & ~HUGEPAGE_MASK) + +/* PAGES_CAN_PURGE_LAZY is defined if lazy purging is supported. */ +#if defined(_WIN32) || defined(JEMALLOC_PURGE_MADVISE_FREE) +# define PAGES_CAN_PURGE_LAZY +#endif +/* + * PAGES_CAN_PURGE_FORCED is defined if forced purging is supported. + * + * The only supported way to hard-purge on Windows is to decommit and then + * re-commit, but doing so is racy, and if re-commit fails it's a pain to + * propagate the "poisoned" memory state. Since we typically decommit as the + * next step after purging on Windows anyway, there's no point in adding such + * complexity. + */ +#if !defined(_WIN32) && ((defined(JEMALLOC_PURGE_MADVISE_DONTNEED) && \ + defined(JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS)) || \ + defined(JEMALLOC_MAPS_COALESCE)) +# define PAGES_CAN_PURGE_FORCED +#endif + +static const bool pages_can_purge_lazy = +#ifdef PAGES_CAN_PURGE_LAZY + true +#else + false +#endif + ; +static const bool pages_can_purge_forced = +#ifdef PAGES_CAN_PURGE_FORCED + true +#else + false +#endif + ; + +#if defined(JEMALLOC_HAVE_MADVISE_HUGE) || defined(JEMALLOC_HAVE_MEMCNTL) +# define PAGES_CAN_HUGIFY +#endif + +static const bool pages_can_hugify = +#ifdef PAGES_CAN_HUGIFY + true +#else + false +#endif + ; + +typedef enum { + thp_mode_default = 0, /* Do not change hugepage settings. */ + thp_mode_always = 1, /* Always set MADV_HUGEPAGE. */ + thp_mode_never = 2, /* Always set MADV_NOHUGEPAGE. */ + + thp_mode_names_limit = 3, /* Used for option processing. */ + thp_mode_not_supported = 3 /* No THP support detected. */ +} thp_mode_t; + +#define THP_MODE_DEFAULT thp_mode_default +extern thp_mode_t opt_thp; +extern thp_mode_t init_system_thp_mode; /* Initial system wide state. */ +extern const char *thp_mode_names[]; + +void *pages_map(void *addr, size_t size, size_t alignment, bool *commit); +void pages_unmap(void *addr, size_t size); +bool pages_commit(void *addr, size_t size); +bool pages_decommit(void *addr, size_t size); +bool pages_purge_lazy(void *addr, size_t size); +bool pages_purge_forced(void *addr, size_t size); +bool pages_huge(void *addr, size_t size); +bool pages_nohuge(void *addr, size_t size); +bool pages_dontdump(void *addr, size_t size); +bool pages_dodump(void *addr, size_t size); +bool pages_boot(void); +void pages_set_thp_state (void *ptr, size_t size); +void pages_mark_guards(void *head, void *tail); +void pages_unmark_guards(void *head, void *tail); + +#endif /* JEMALLOC_INTERNAL_PAGES_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/pai.h b/deps/jemalloc/include/jemalloc/internal/pai.h new file mode 100644 index 0000000..d978cd7 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/pai.h @@ -0,0 +1,95 @@ +#ifndef JEMALLOC_INTERNAL_PAI_H +#define JEMALLOC_INTERNAL_PAI_H + +/* An interface for page allocation. */ + +typedef struct pai_s pai_t; +struct pai_s { + /* Returns NULL on failure. */ + edata_t *(*alloc)(tsdn_t *tsdn, pai_t *self, size_t size, + size_t alignment, bool zero, bool guarded, bool frequent_reuse, + bool *deferred_work_generated); + /* + * Returns the number of extents added to the list (which may be fewer + * than requested, in case of OOM). The list should already be + * initialized. The only alignment guarantee is page-alignment, and + * the results are not necessarily zeroed. + */ + size_t (*alloc_batch)(tsdn_t *tsdn, pai_t *self, size_t size, + size_t nallocs, edata_list_active_t *results, + bool *deferred_work_generated); + bool (*expand)(tsdn_t *tsdn, pai_t *self, edata_t *edata, + size_t old_size, size_t new_size, bool zero, + bool *deferred_work_generated); + bool (*shrink)(tsdn_t *tsdn, pai_t *self, edata_t *edata, + size_t old_size, size_t new_size, bool *deferred_work_generated); + void (*dalloc)(tsdn_t *tsdn, pai_t *self, edata_t *edata, + bool *deferred_work_generated); + /* This function empties out list as a side-effect of being called. */ + void (*dalloc_batch)(tsdn_t *tsdn, pai_t *self, + edata_list_active_t *list, bool *deferred_work_generated); + uint64_t (*time_until_deferred_work)(tsdn_t *tsdn, pai_t *self); +}; + +/* + * These are just simple convenience functions to avoid having to reference the + * same pai_t twice on every invocation. + */ + +static inline edata_t * +pai_alloc(tsdn_t *tsdn, pai_t *self, size_t size, size_t alignment, + bool zero, bool guarded, bool frequent_reuse, + bool *deferred_work_generated) { + return self->alloc(tsdn, self, size, alignment, zero, guarded, + frequent_reuse, deferred_work_generated); +} + +static inline size_t +pai_alloc_batch(tsdn_t *tsdn, pai_t *self, size_t size, size_t nallocs, + edata_list_active_t *results, bool *deferred_work_generated) { + return self->alloc_batch(tsdn, self, size, nallocs, results, + deferred_work_generated); +} + +static inline bool +pai_expand(tsdn_t *tsdn, pai_t *self, edata_t *edata, size_t old_size, + size_t new_size, bool zero, bool *deferred_work_generated) { + return self->expand(tsdn, self, edata, old_size, new_size, zero, + deferred_work_generated); +} + +static inline bool +pai_shrink(tsdn_t *tsdn, pai_t *self, edata_t *edata, size_t old_size, + size_t new_size, bool *deferred_work_generated) { + return self->shrink(tsdn, self, edata, old_size, new_size, + deferred_work_generated); +} + +static inline void +pai_dalloc(tsdn_t *tsdn, pai_t *self, edata_t *edata, + bool *deferred_work_generated) { + self->dalloc(tsdn, self, edata, deferred_work_generated); +} + +static inline void +pai_dalloc_batch(tsdn_t *tsdn, pai_t *self, edata_list_active_t *list, + bool *deferred_work_generated) { + self->dalloc_batch(tsdn, self, list, deferred_work_generated); +} + +static inline uint64_t +pai_time_until_deferred_work(tsdn_t *tsdn, pai_t *self) { + return self->time_until_deferred_work(tsdn, self); +} + +/* + * An implementation of batch allocation that simply calls alloc once for + * each item in the list. + */ +size_t pai_alloc_batch_default(tsdn_t *tsdn, pai_t *self, size_t size, + size_t nallocs, edata_list_active_t *results, bool *deferred_work_generated); +/* Ditto, for dalloc. */ +void pai_dalloc_batch_default(tsdn_t *tsdn, pai_t *self, + edata_list_active_t *list, bool *deferred_work_generated); + +#endif /* JEMALLOC_INTERNAL_PAI_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/peak.h b/deps/jemalloc/include/jemalloc/internal/peak.h new file mode 100644 index 0000000..59da3e4 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/peak.h @@ -0,0 +1,37 @@ +#ifndef JEMALLOC_INTERNAL_PEAK_H +#define JEMALLOC_INTERNAL_PEAK_H + +typedef struct peak_s peak_t; +struct peak_s { + /* The highest recorded peak value, after adjustment (see below). */ + uint64_t cur_max; + /* + * The difference between alloc and dalloc at the last set_zero call; + * this lets us cancel out the appropriate amount of excess. + */ + uint64_t adjustment; +}; + +#define PEAK_INITIALIZER {0, 0} + +static inline uint64_t +peak_max(peak_t *peak) { + return peak->cur_max; +} + +static inline void +peak_update(peak_t *peak, uint64_t alloc, uint64_t dalloc) { + int64_t candidate_max = (int64_t)(alloc - dalloc - peak->adjustment); + if (candidate_max > (int64_t)peak->cur_max) { + peak->cur_max = candidate_max; + } +} + +/* Resets the counter to zero; all peaks are now relative to this point. */ +static inline void +peak_set_zero(peak_t *peak, uint64_t alloc, uint64_t dalloc) { + peak->cur_max = 0; + peak->adjustment = alloc - dalloc; +} + +#endif /* JEMALLOC_INTERNAL_PEAK_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/peak_event.h b/deps/jemalloc/include/jemalloc/internal/peak_event.h new file mode 100644 index 0000000..b808ce0 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/peak_event.h @@ -0,0 +1,24 @@ +#ifndef JEMALLOC_INTERNAL_PEAK_EVENT_H +#define JEMALLOC_INTERNAL_PEAK_EVENT_H + +/* + * While peak.h contains the simple helper struct that tracks state, this + * contains the allocator tie-ins (and knows about tsd, the event module, etc.). + */ + +/* Update the peak with current tsd state. */ +void peak_event_update(tsd_t *tsd); +/* Set current state to zero. */ +void peak_event_zero(tsd_t *tsd); +uint64_t peak_event_max(tsd_t *tsd); + +/* Manual hooks. */ +/* The activity-triggered hooks. */ +uint64_t peak_alloc_new_event_wait(tsd_t *tsd); +uint64_t peak_alloc_postponed_event_wait(tsd_t *tsd); +void peak_alloc_event_handler(tsd_t *tsd, uint64_t elapsed); +uint64_t peak_dalloc_new_event_wait(tsd_t *tsd); +uint64_t peak_dalloc_postponed_event_wait(tsd_t *tsd); +void peak_dalloc_event_handler(tsd_t *tsd, uint64_t elapsed); + +#endif /* JEMALLOC_INTERNAL_PEAK_EVENT_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/ph.h b/deps/jemalloc/include/jemalloc/internal/ph.h new file mode 100644 index 0000000..5f091c5 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ph.h @@ -0,0 +1,520 @@ +#ifndef JEMALLOC_INTERNAL_PH_H +#define JEMALLOC_INTERNAL_PH_H + +/* + * A Pairing Heap implementation. + * + * "The Pairing Heap: A New Form of Self-Adjusting Heap" + * https://www.cs.cmu.edu/~sleator/papers/pairing-heaps.pdf + * + * With auxiliary twopass list, described in a follow on paper. + * + * "Pairing Heaps: Experiments and Analysis" + * http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.106.2988&rep=rep1&type=pdf + * + ******************************************************************************* + * + * We include a non-obvious optimization: + * - First, we introduce a new pop-and-link operation; pop the two most + * recently-inserted items off the aux-list, link them, and push the resulting + * heap. + * - We maintain a count of the number of insertions since the last time we + * merged the aux-list (i.e. via first() or remove_first()). After N inserts, + * we do ffs(N) pop-and-link operations. + * + * One way to think of this is that we're progressively building up a tree in + * the aux-list, rather than a linked-list (think of the series of merges that + * will be performed as the aux-count grows). + * + * There's a couple reasons we benefit from this: + * - Ordinarily, after N insertions, the aux-list is of size N. With our + * strategy, it's of size O(log(N)). So we decrease the worst-case time of + * first() calls, and reduce the average cost of remove_min calls. Since + * these almost always occur while holding a lock, we practically reduce the + * frequency of unusually long hold times. + * - This moves the bulk of the work of merging the aux-list onto the threads + * that are inserting into the heap. In some common scenarios, insertions + * happen in bulk, from a single thread (think tcache flushing; we potentially + * move many slabs from slabs_full to slabs_nonfull). All the nodes in this + * case are in the inserting threads cache, and linking them is very cheap + * (cache misses dominate linking cost). Without this optimization, linking + * happens on the next call to remove_first. Since that remove_first call + * likely happens on a different thread (or at least, after the cache has + * gotten cold if done on the same thread), deferring linking trades cheap + * link operations now for expensive ones later. + * + * The ffs trick keeps amortized insert cost at constant time. Similar + * strategies based on periodically sorting the list after a batch of operations + * perform worse than this in practice, even with various fancy tricks; they + * all took amortized complexity of an insert from O(1) to O(log(n)). + */ + +typedef int (*ph_cmp_t)(void *, void *); + +/* Node structure. */ +typedef struct phn_link_s phn_link_t; +struct phn_link_s { + void *prev; + void *next; + void *lchild; +}; + +typedef struct ph_s ph_t; +struct ph_s { + void *root; + /* + * Inserts done since the last aux-list merge. This is not necessarily + * the size of the aux-list, since it's possible that removals have + * happened since, and we don't track whether or not those removals are + * from the aux list. + */ + size_t auxcount; +}; + +JEMALLOC_ALWAYS_INLINE phn_link_t * +phn_link_get(void *phn, size_t offset) { + return (phn_link_t *)(((uintptr_t)phn) + offset); +} + +JEMALLOC_ALWAYS_INLINE void +phn_link_init(void *phn, size_t offset) { + phn_link_get(phn, offset)->prev = NULL; + phn_link_get(phn, offset)->next = NULL; + phn_link_get(phn, offset)->lchild = NULL; +} + +/* Internal utility helpers. */ +JEMALLOC_ALWAYS_INLINE void * +phn_lchild_get(void *phn, size_t offset) { + return phn_link_get(phn, offset)->lchild; +} + +JEMALLOC_ALWAYS_INLINE void +phn_lchild_set(void *phn, void *lchild, size_t offset) { + phn_link_get(phn, offset)->lchild = lchild; +} + +JEMALLOC_ALWAYS_INLINE void * +phn_next_get(void *phn, size_t offset) { + return phn_link_get(phn, offset)->next; +} + +JEMALLOC_ALWAYS_INLINE void +phn_next_set(void *phn, void *next, size_t offset) { + phn_link_get(phn, offset)->next = next; +} + +JEMALLOC_ALWAYS_INLINE void * +phn_prev_get(void *phn, size_t offset) { + return phn_link_get(phn, offset)->prev; +} + +JEMALLOC_ALWAYS_INLINE void +phn_prev_set(void *phn, void *prev, size_t offset) { + phn_link_get(phn, offset)->prev = prev; +} + +JEMALLOC_ALWAYS_INLINE void +phn_merge_ordered(void *phn0, void *phn1, size_t offset, + ph_cmp_t cmp) { + void *phn0child; + + assert(phn0 != NULL); + assert(phn1 != NULL); + assert(cmp(phn0, phn1) <= 0); + + phn_prev_set(phn1, phn0, offset); + phn0child = phn_lchild_get(phn0, offset); + phn_next_set(phn1, phn0child, offset); + if (phn0child != NULL) { + phn_prev_set(phn0child, phn1, offset); + } + phn_lchild_set(phn0, phn1, offset); +} + +JEMALLOC_ALWAYS_INLINE void * +phn_merge(void *phn0, void *phn1, size_t offset, ph_cmp_t cmp) { + void *result; + if (phn0 == NULL) { + result = phn1; + } else if (phn1 == NULL) { + result = phn0; + } else if (cmp(phn0, phn1) < 0) { + phn_merge_ordered(phn0, phn1, offset, cmp); + result = phn0; + } else { + phn_merge_ordered(phn1, phn0, offset, cmp); + result = phn1; + } + return result; +} + +JEMALLOC_ALWAYS_INLINE void * +phn_merge_siblings(void *phn, size_t offset, ph_cmp_t cmp) { + void *head = NULL; + void *tail = NULL; + void *phn0 = phn; + void *phn1 = phn_next_get(phn0, offset); + + /* + * Multipass merge, wherein the first two elements of a FIFO + * are repeatedly merged, and each result is appended to the + * singly linked FIFO, until the FIFO contains only a single + * element. We start with a sibling list but no reference to + * its tail, so we do a single pass over the sibling list to + * populate the FIFO. + */ + if (phn1 != NULL) { + void *phnrest = phn_next_get(phn1, offset); + if (phnrest != NULL) { + phn_prev_set(phnrest, NULL, offset); + } + phn_prev_set(phn0, NULL, offset); + phn_next_set(phn0, NULL, offset); + phn_prev_set(phn1, NULL, offset); + phn_next_set(phn1, NULL, offset); + phn0 = phn_merge(phn0, phn1, offset, cmp); + head = tail = phn0; + phn0 = phnrest; + while (phn0 != NULL) { + phn1 = phn_next_get(phn0, offset); + if (phn1 != NULL) { + phnrest = phn_next_get(phn1, offset); + if (phnrest != NULL) { + phn_prev_set(phnrest, NULL, offset); + } + phn_prev_set(phn0, NULL, offset); + phn_next_set(phn0, NULL, offset); + phn_prev_set(phn1, NULL, offset); + phn_next_set(phn1, NULL, offset); + phn0 = phn_merge(phn0, phn1, offset, cmp); + phn_next_set(tail, phn0, offset); + tail = phn0; + phn0 = phnrest; + } else { + phn_next_set(tail, phn0, offset); + tail = phn0; + phn0 = NULL; + } + } + phn0 = head; + phn1 = phn_next_get(phn0, offset); + if (phn1 != NULL) { + while (true) { + head = phn_next_get(phn1, offset); + assert(phn_prev_get(phn0, offset) == NULL); + phn_next_set(phn0, NULL, offset); + assert(phn_prev_get(phn1, offset) == NULL); + phn_next_set(phn1, NULL, offset); + phn0 = phn_merge(phn0, phn1, offset, cmp); + if (head == NULL) { + break; + } + phn_next_set(tail, phn0, offset); + tail = phn0; + phn0 = head; + phn1 = phn_next_get(phn0, offset); + } + } + } + return phn0; +} + +JEMALLOC_ALWAYS_INLINE void +ph_merge_aux(ph_t *ph, size_t offset, ph_cmp_t cmp) { + ph->auxcount = 0; + void *phn = phn_next_get(ph->root, offset); + if (phn != NULL) { + phn_prev_set(ph->root, NULL, offset); + phn_next_set(ph->root, NULL, offset); + phn_prev_set(phn, NULL, offset); + phn = phn_merge_siblings(phn, offset, cmp); + assert(phn_next_get(phn, offset) == NULL); + ph->root = phn_merge(ph->root, phn, offset, cmp); + } +} + +JEMALLOC_ALWAYS_INLINE void * +ph_merge_children(void *phn, size_t offset, ph_cmp_t cmp) { + void *result; + void *lchild = phn_lchild_get(phn, offset); + if (lchild == NULL) { + result = NULL; + } else { + result = phn_merge_siblings(lchild, offset, cmp); + } + return result; +} + +JEMALLOC_ALWAYS_INLINE void +ph_new(ph_t *ph) { + ph->root = NULL; + ph->auxcount = 0; +} + +JEMALLOC_ALWAYS_INLINE bool +ph_empty(ph_t *ph) { + return ph->root == NULL; +} + +JEMALLOC_ALWAYS_INLINE void * +ph_first(ph_t *ph, size_t offset, ph_cmp_t cmp) { + if (ph->root == NULL) { + return NULL; + } + ph_merge_aux(ph, offset, cmp); + return ph->root; +} + +JEMALLOC_ALWAYS_INLINE void * +ph_any(ph_t *ph, size_t offset) { + if (ph->root == NULL) { + return NULL; + } + void *aux = phn_next_get(ph->root, offset); + if (aux != NULL) { + return aux; + } + return ph->root; +} + +/* Returns true if we should stop trying to merge. */ +JEMALLOC_ALWAYS_INLINE bool +ph_try_aux_merge_pair(ph_t *ph, size_t offset, ph_cmp_t cmp) { + assert(ph->root != NULL); + void *phn0 = phn_next_get(ph->root, offset); + if (phn0 == NULL) { + return true; + } + void *phn1 = phn_next_get(phn0, offset); + if (phn1 == NULL) { + return true; + } + void *next_phn1 = phn_next_get(phn1, offset); + phn_next_set(phn0, NULL, offset); + phn_prev_set(phn0, NULL, offset); + phn_next_set(phn1, NULL, offset); + phn_prev_set(phn1, NULL, offset); + phn0 = phn_merge(phn0, phn1, offset, cmp); + phn_next_set(phn0, next_phn1, offset); + if (next_phn1 != NULL) { + phn_prev_set(next_phn1, phn0, offset); + } + phn_next_set(ph->root, phn0, offset); + phn_prev_set(phn0, ph->root, offset); + return next_phn1 == NULL; +} + +JEMALLOC_ALWAYS_INLINE void +ph_insert(ph_t *ph, void *phn, size_t offset, ph_cmp_t cmp) { + phn_link_init(phn, offset); + + /* + * Treat the root as an aux list during insertion, and lazily merge + * during a_prefix##remove_first(). For elements that are inserted, + * then removed via a_prefix##remove() before the aux list is ever + * processed, this makes insert/remove constant-time, whereas eager + * merging would make insert O(log n). + */ + if (ph->root == NULL) { + ph->root = phn; + } else { + /* + * As a special case, check to see if we can replace the root. + * This is practically common in some important cases, and lets + * us defer some insertions (hopefully, until the point where + * some of the items in the aux list have been removed, savings + * us from linking them at all). + */ + if (cmp(phn, ph->root) < 0) { + phn_lchild_set(phn, ph->root, offset); + phn_prev_set(ph->root, phn, offset); + ph->root = phn; + ph->auxcount = 0; + return; + } + ph->auxcount++; + phn_next_set(phn, phn_next_get(ph->root, offset), offset); + if (phn_next_get(ph->root, offset) != NULL) { + phn_prev_set(phn_next_get(ph->root, offset), phn, + offset); + } + phn_prev_set(phn, ph->root, offset); + phn_next_set(ph->root, phn, offset); + } + if (ph->auxcount > 1) { + unsigned nmerges = ffs_zu(ph->auxcount - 1); + bool done = false; + for (unsigned i = 0; i < nmerges && !done; i++) { + done = ph_try_aux_merge_pair(ph, offset, cmp); + } + } +} + +JEMALLOC_ALWAYS_INLINE void * +ph_remove_first(ph_t *ph, size_t offset, ph_cmp_t cmp) { + void *ret; + + if (ph->root == NULL) { + return NULL; + } + ph_merge_aux(ph, offset, cmp); + ret = ph->root; + ph->root = ph_merge_children(ph->root, offset, cmp); + + return ret; + +} + +JEMALLOC_ALWAYS_INLINE void +ph_remove(ph_t *ph, void *phn, size_t offset, ph_cmp_t cmp) { + void *replace; + void *parent; + + if (ph->root == phn) { + /* + * We can delete from aux list without merging it, but we need + * to merge if we are dealing with the root node and it has + * children. + */ + if (phn_lchild_get(phn, offset) == NULL) { + ph->root = phn_next_get(phn, offset); + if (ph->root != NULL) { + phn_prev_set(ph->root, NULL, offset); + } + return; + } + ph_merge_aux(ph, offset, cmp); + if (ph->root == phn) { + ph->root = ph_merge_children(ph->root, offset, cmp); + return; + } + } + + /* Get parent (if phn is leftmost child) before mutating. */ + if ((parent = phn_prev_get(phn, offset)) != NULL) { + if (phn_lchild_get(parent, offset) != phn) { + parent = NULL; + } + } + /* Find a possible replacement node, and link to parent. */ + replace = ph_merge_children(phn, offset, cmp); + /* Set next/prev for sibling linked list. */ + if (replace != NULL) { + if (parent != NULL) { + phn_prev_set(replace, parent, offset); + phn_lchild_set(parent, replace, offset); + } else { + phn_prev_set(replace, phn_prev_get(phn, offset), + offset); + if (phn_prev_get(phn, offset) != NULL) { + phn_next_set(phn_prev_get(phn, offset), replace, + offset); + } + } + phn_next_set(replace, phn_next_get(phn, offset), offset); + if (phn_next_get(phn, offset) != NULL) { + phn_prev_set(phn_next_get(phn, offset), replace, + offset); + } + } else { + if (parent != NULL) { + void *next = phn_next_get(phn, offset); + phn_lchild_set(parent, next, offset); + if (next != NULL) { + phn_prev_set(next, parent, offset); + } + } else { + assert(phn_prev_get(phn, offset) != NULL); + phn_next_set( + phn_prev_get(phn, offset), + phn_next_get(phn, offset), offset); + } + if (phn_next_get(phn, offset) != NULL) { + phn_prev_set( + phn_next_get(phn, offset), + phn_prev_get(phn, offset), offset); + } + } +} + +#define ph_structs(a_prefix, a_type) \ +typedef struct { \ + phn_link_t link; \ +} a_prefix##_link_t; \ + \ +typedef struct { \ + ph_t ph; \ +} a_prefix##_t; + +/* + * The ph_proto() macro generates function prototypes that correspond to the + * functions generated by an equivalently parameterized call to ph_gen(). + */ +#define ph_proto(a_attr, a_prefix, a_type) \ + \ +a_attr void a_prefix##_new(a_prefix##_t *ph); \ +a_attr bool a_prefix##_empty(a_prefix##_t *ph); \ +a_attr a_type *a_prefix##_first(a_prefix##_t *ph); \ +a_attr a_type *a_prefix##_any(a_prefix##_t *ph); \ +a_attr void a_prefix##_insert(a_prefix##_t *ph, a_type *phn); \ +a_attr a_type *a_prefix##_remove_first(a_prefix##_t *ph); \ +a_attr void a_prefix##_remove(a_prefix##_t *ph, a_type *phn); \ +a_attr a_type *a_prefix##_remove_any(a_prefix##_t *ph); + +/* The ph_gen() macro generates a type-specific pairing heap implementation. */ +#define ph_gen(a_attr, a_prefix, a_type, a_field, a_cmp) \ +JEMALLOC_ALWAYS_INLINE int \ +a_prefix##_ph_cmp(void *a, void *b) { \ + return a_cmp((a_type *)a, (a_type *)b); \ +} \ + \ +a_attr void \ +a_prefix##_new(a_prefix##_t *ph) { \ + ph_new(&ph->ph); \ +} \ + \ +a_attr bool \ +a_prefix##_empty(a_prefix##_t *ph) { \ + return ph_empty(&ph->ph); \ +} \ + \ +a_attr a_type * \ +a_prefix##_first(a_prefix##_t *ph) { \ + return ph_first(&ph->ph, offsetof(a_type, a_field), \ + &a_prefix##_ph_cmp); \ +} \ + \ +a_attr a_type * \ +a_prefix##_any(a_prefix##_t *ph) { \ + return ph_any(&ph->ph, offsetof(a_type, a_field)); \ +} \ + \ +a_attr void \ +a_prefix##_insert(a_prefix##_t *ph, a_type *phn) { \ + ph_insert(&ph->ph, phn, offsetof(a_type, a_field), \ + a_prefix##_ph_cmp); \ +} \ + \ +a_attr a_type * \ +a_prefix##_remove_first(a_prefix##_t *ph) { \ + return ph_remove_first(&ph->ph, offsetof(a_type, a_field), \ + a_prefix##_ph_cmp); \ +} \ + \ +a_attr void \ +a_prefix##_remove(a_prefix##_t *ph, a_type *phn) { \ + ph_remove(&ph->ph, phn, offsetof(a_type, a_field), \ + a_prefix##_ph_cmp); \ +} \ + \ +a_attr a_type * \ +a_prefix##_remove_any(a_prefix##_t *ph) { \ + a_type *ret = a_prefix##_any(ph); \ + if (ret != NULL) { \ + a_prefix##_remove(ph, ret); \ + } \ + return ret; \ +} + +#endif /* JEMALLOC_INTERNAL_PH_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/private_namespace.sh b/deps/jemalloc/include/jemalloc/internal/private_namespace.sh new file mode 100755 index 0000000..6ef1346 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/private_namespace.sh @@ -0,0 +1,5 @@ +#!/bin/sh + +for symbol in `cat "$@"` ; do + echo "#define ${symbol} JEMALLOC_N(${symbol})" +done diff --git a/deps/jemalloc/include/jemalloc/internal/private_symbols.sh b/deps/jemalloc/include/jemalloc/internal/private_symbols.sh new file mode 100755 index 0000000..442a259 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/private_symbols.sh @@ -0,0 +1,51 @@ +#!/bin/sh +# +# Generate private_symbols[_jet].awk. +# +# Usage: private_symbols.sh <sym_prefix> <sym>* +# +# <sym_prefix> is typically "" or "_". + +sym_prefix=$1 +shift + +cat <<EOF +#!/usr/bin/env awk -f + +BEGIN { + sym_prefix = "${sym_prefix}" + split("\\ +EOF + +for public_sym in "$@" ; do + cat <<EOF + ${sym_prefix}${public_sym} \\ +EOF +done + +cat <<"EOF" + ", exported_symbol_names) + # Store exported symbol names as keys in exported_symbols. + for (i in exported_symbol_names) { + exported_symbols[exported_symbol_names[i]] = 1 + } +} + +# Process 'nm -a <c_source.o>' output. +# +# Handle lines like: +# 0000000000000008 D opt_junk +# 0000000000007574 T malloc_initialized +(NF == 3 && $2 ~ /^[ABCDGRSTVW]$/ && !($3 in exported_symbols) && $3 ~ /^[A-Za-z0-9_]+$/) { + print substr($3, 1+length(sym_prefix), length($3)-length(sym_prefix)) +} + +# Process 'dumpbin /SYMBOLS <c_source.obj>' output. +# +# Handle lines like: +# 353 00008098 SECT4 notype External | opt_junk +# 3F1 00000000 SECT7 notype () External | malloc_initialized +($3 ~ /^SECT[0-9]+/ && $(NF-2) == "External" && !($NF in exported_symbols)) { + print $NF +} +EOF diff --git a/deps/jemalloc/include/jemalloc/internal/prng.h b/deps/jemalloc/include/jemalloc/internal/prng.h new file mode 100644 index 0000000..14542aa --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prng.h @@ -0,0 +1,168 @@ +#ifndef JEMALLOC_INTERNAL_PRNG_H +#define JEMALLOC_INTERNAL_PRNG_H + +#include "jemalloc/internal/bit_util.h" + +/* + * Simple linear congruential pseudo-random number generator: + * + * prng(y) = (a*x + c) % m + * + * where the following constants ensure maximal period: + * + * a == Odd number (relatively prime to 2^n), and (a-1) is a multiple of 4. + * c == Odd number (relatively prime to 2^n). + * m == 2^32 + * + * See Knuth's TAOCP 3rd Ed., Vol. 2, pg. 17 for details on these constraints. + * + * This choice of m has the disadvantage that the quality of the bits is + * proportional to bit position. For example, the lowest bit has a cycle of 2, + * the next has a cycle of 4, etc. For this reason, we prefer to use the upper + * bits. + */ + +/******************************************************************************/ +/* INTERNAL DEFINITIONS -- IGNORE */ +/******************************************************************************/ +#define PRNG_A_32 UINT32_C(1103515241) +#define PRNG_C_32 UINT32_C(12347) + +#define PRNG_A_64 UINT64_C(6364136223846793005) +#define PRNG_C_64 UINT64_C(1442695040888963407) + +JEMALLOC_ALWAYS_INLINE uint32_t +prng_state_next_u32(uint32_t state) { + return (state * PRNG_A_32) + PRNG_C_32; +} + +JEMALLOC_ALWAYS_INLINE uint64_t +prng_state_next_u64(uint64_t state) { + return (state * PRNG_A_64) + PRNG_C_64; +} + +JEMALLOC_ALWAYS_INLINE size_t +prng_state_next_zu(size_t state) { +#if LG_SIZEOF_PTR == 2 + return (state * PRNG_A_32) + PRNG_C_32; +#elif LG_SIZEOF_PTR == 3 + return (state * PRNG_A_64) + PRNG_C_64; +#else +#error Unsupported pointer size +#endif +} + +/******************************************************************************/ +/* BEGIN PUBLIC API */ +/******************************************************************************/ + +/* + * The prng_lg_range functions give a uniform int in the half-open range [0, + * 2**lg_range). + */ + +JEMALLOC_ALWAYS_INLINE uint32_t +prng_lg_range_u32(uint32_t *state, unsigned lg_range) { + assert(lg_range > 0); + assert(lg_range <= 32); + + *state = prng_state_next_u32(*state); + uint32_t ret = *state >> (32 - lg_range); + + return ret; +} + +JEMALLOC_ALWAYS_INLINE uint64_t +prng_lg_range_u64(uint64_t *state, unsigned lg_range) { + assert(lg_range > 0); + assert(lg_range <= 64); + + *state = prng_state_next_u64(*state); + uint64_t ret = *state >> (64 - lg_range); + + return ret; +} + +JEMALLOC_ALWAYS_INLINE size_t +prng_lg_range_zu(size_t *state, unsigned lg_range) { + assert(lg_range > 0); + assert(lg_range <= ZU(1) << (3 + LG_SIZEOF_PTR)); + + *state = prng_state_next_zu(*state); + size_t ret = *state >> ((ZU(1) << (3 + LG_SIZEOF_PTR)) - lg_range); + + return ret; +} + +/* + * The prng_range functions behave like the prng_lg_range, but return a result + * in [0, range) instead of [0, 2**lg_range). + */ + +JEMALLOC_ALWAYS_INLINE uint32_t +prng_range_u32(uint32_t *state, uint32_t range) { + assert(range != 0); + /* + * If range were 1, lg_range would be 0, so the shift in + * prng_lg_range_u32 would be a shift of a 32-bit variable by 32 bits, + * which is UB. Just handle this case as a one-off. + */ + if (range == 1) { + return 0; + } + + /* Compute the ceiling of lg(range). */ + unsigned lg_range = ffs_u32(pow2_ceil_u32(range)); + + /* Generate a result in [0..range) via repeated trial. */ + uint32_t ret; + do { + ret = prng_lg_range_u32(state, lg_range); + } while (ret >= range); + + return ret; +} + +JEMALLOC_ALWAYS_INLINE uint64_t +prng_range_u64(uint64_t *state, uint64_t range) { + assert(range != 0); + + /* See the note in prng_range_u32. */ + if (range == 1) { + return 0; + } + + /* Compute the ceiling of lg(range). */ + unsigned lg_range = ffs_u64(pow2_ceil_u64(range)); + + /* Generate a result in [0..range) via repeated trial. */ + uint64_t ret; + do { + ret = prng_lg_range_u64(state, lg_range); + } while (ret >= range); + + return ret; +} + +JEMALLOC_ALWAYS_INLINE size_t +prng_range_zu(size_t *state, size_t range) { + assert(range != 0); + + /* See the note in prng_range_u32. */ + if (range == 1) { + return 0; + } + + /* Compute the ceiling of lg(range). */ + unsigned lg_range = ffs_u64(pow2_ceil_u64(range)); + + /* Generate a result in [0..range) via repeated trial. */ + size_t ret; + do { + ret = prng_lg_range_zu(state, lg_range); + } while (ret >= range); + + return ret; +} + +#endif /* JEMALLOC_INTERNAL_PRNG_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_data.h b/deps/jemalloc/include/jemalloc/internal/prof_data.h new file mode 100644 index 0000000..4c8e22c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_data.h @@ -0,0 +1,37 @@ +#ifndef JEMALLOC_INTERNAL_PROF_DATA_H +#define JEMALLOC_INTERNAL_PROF_DATA_H + +#include "jemalloc/internal/mutex.h" + +extern malloc_mutex_t bt2gctx_mtx; +extern malloc_mutex_t tdatas_mtx; +extern malloc_mutex_t prof_dump_mtx; + +extern malloc_mutex_t *gctx_locks; +extern malloc_mutex_t *tdata_locks; + +extern size_t prof_unbiased_sz[PROF_SC_NSIZES]; +extern size_t prof_shifted_unbiased_cnt[PROF_SC_NSIZES]; + +void prof_bt_hash(const void *key, size_t r_hash[2]); +bool prof_bt_keycomp(const void *k1, const void *k2); + +bool prof_data_init(tsd_t *tsd); +prof_tctx_t *prof_lookup(tsd_t *tsd, prof_bt_t *bt); +char *prof_thread_name_alloc(tsd_t *tsd, const char *thread_name); +int prof_thread_name_set_impl(tsd_t *tsd, const char *thread_name); +void prof_unbias_map_init(); +void prof_dump_impl(tsd_t *tsd, write_cb_t *prof_dump_write, void *cbopaque, + prof_tdata_t *tdata, bool leakcheck); +prof_tdata_t * prof_tdata_init_impl(tsd_t *tsd, uint64_t thr_uid, + uint64_t thr_discrim, char *thread_name, bool active); +void prof_tdata_detach(tsd_t *tsd, prof_tdata_t *tdata); +void prof_reset(tsd_t *tsd, size_t lg_sample); +void prof_tctx_try_destroy(tsd_t *tsd, prof_tctx_t *tctx); + +/* Used in unit tests. */ +size_t prof_tdata_count(void); +size_t prof_bt_count(void); +void prof_cnt_all(prof_cnt_t *cnt_all); + +#endif /* JEMALLOC_INTERNAL_PROF_DATA_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_externs.h b/deps/jemalloc/include/jemalloc/internal/prof_externs.h new file mode 100644 index 0000000..bdff134 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_externs.h @@ -0,0 +1,95 @@ +#ifndef JEMALLOC_INTERNAL_PROF_EXTERNS_H +#define JEMALLOC_INTERNAL_PROF_EXTERNS_H + +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/prof_hook.h" + +extern bool opt_prof; +extern bool opt_prof_active; +extern bool opt_prof_thread_active_init; +extern size_t opt_lg_prof_sample; /* Mean bytes between samples. */ +extern ssize_t opt_lg_prof_interval; /* lg(prof_interval). */ +extern bool opt_prof_gdump; /* High-water memory dumping. */ +extern bool opt_prof_final; /* Final profile dumping. */ +extern bool opt_prof_leak; /* Dump leak summary at exit. */ +extern bool opt_prof_leak_error; /* Exit with error code if memory leaked */ +extern bool opt_prof_accum; /* Report cumulative bytes. */ +extern bool opt_prof_log; /* Turn logging on at boot. */ +extern char opt_prof_prefix[ + /* Minimize memory bloat for non-prof builds. */ +#ifdef JEMALLOC_PROF + PATH_MAX + +#endif + 1]; +extern bool opt_prof_unbias; + +/* For recording recent allocations */ +extern ssize_t opt_prof_recent_alloc_max; + +/* Whether to use thread name provided by the system or by mallctl. */ +extern bool opt_prof_sys_thread_name; + +/* Whether to record per size class counts and request size totals. */ +extern bool opt_prof_stats; + +/* Accessed via prof_active_[gs]et{_unlocked,}(). */ +extern bool prof_active_state; + +/* Accessed via prof_gdump_[gs]et{_unlocked,}(). */ +extern bool prof_gdump_val; + +/* Profile dump interval, measured in bytes allocated. */ +extern uint64_t prof_interval; + +/* + * Initialized as opt_lg_prof_sample, and potentially modified during profiling + * resets. + */ +extern size_t lg_prof_sample; + +extern bool prof_booted; + +void prof_backtrace_hook_set(prof_backtrace_hook_t hook); +prof_backtrace_hook_t prof_backtrace_hook_get(); + +void prof_dump_hook_set(prof_dump_hook_t hook); +prof_dump_hook_t prof_dump_hook_get(); + +/* Functions only accessed in prof_inlines.h */ +prof_tdata_t *prof_tdata_init(tsd_t *tsd); +prof_tdata_t *prof_tdata_reinit(tsd_t *tsd, prof_tdata_t *tdata); + +void prof_alloc_rollback(tsd_t *tsd, prof_tctx_t *tctx); +void prof_malloc_sample_object(tsd_t *tsd, const void *ptr, size_t size, + size_t usize, prof_tctx_t *tctx); +void prof_free_sampled_object(tsd_t *tsd, size_t usize, prof_info_t *prof_info); +prof_tctx_t *prof_tctx_create(tsd_t *tsd); +void prof_idump(tsdn_t *tsdn); +bool prof_mdump(tsd_t *tsd, const char *filename); +void prof_gdump(tsdn_t *tsdn); + +void prof_tdata_cleanup(tsd_t *tsd); +bool prof_active_get(tsdn_t *tsdn); +bool prof_active_set(tsdn_t *tsdn, bool active); +const char *prof_thread_name_get(tsd_t *tsd); +int prof_thread_name_set(tsd_t *tsd, const char *thread_name); +bool prof_thread_active_get(tsd_t *tsd); +bool prof_thread_active_set(tsd_t *tsd, bool active); +bool prof_thread_active_init_get(tsdn_t *tsdn); +bool prof_thread_active_init_set(tsdn_t *tsdn, bool active_init); +bool prof_gdump_get(tsdn_t *tsdn); +bool prof_gdump_set(tsdn_t *tsdn, bool active); +void prof_boot0(void); +void prof_boot1(void); +bool prof_boot2(tsd_t *tsd, base_t *base); +void prof_prefork0(tsdn_t *tsdn); +void prof_prefork1(tsdn_t *tsdn); +void prof_postfork_parent(tsdn_t *tsdn); +void prof_postfork_child(tsdn_t *tsdn); + +/* Only accessed by thread event. */ +uint64_t prof_sample_new_event_wait(tsd_t *tsd); +uint64_t prof_sample_postponed_event_wait(tsd_t *tsd); +void prof_sample_event_handler(tsd_t *tsd, uint64_t elapsed); + +#endif /* JEMALLOC_INTERNAL_PROF_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_hook.h b/deps/jemalloc/include/jemalloc/internal/prof_hook.h new file mode 100644 index 0000000..150d19d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_hook.h @@ -0,0 +1,21 @@ +#ifndef JEMALLOC_INTERNAL_PROF_HOOK_H +#define JEMALLOC_INTERNAL_PROF_HOOK_H + +/* + * The hooks types of which are declared in this file are experimental and + * undocumented, thus the typedefs are located in an 'internal' header. + */ + +/* + * A hook to mock out backtrace functionality. This can be handy, since it's + * otherwise difficult to guarantee that two allocations are reported as coming + * from the exact same stack trace in the presence of an optimizing compiler. + */ +typedef void (*prof_backtrace_hook_t)(void **, unsigned *, unsigned); + +/* + * A callback hook that notifies about recently dumped heap profile. + */ +typedef void (*prof_dump_hook_t)(const char *filename); + +#endif /* JEMALLOC_INTERNAL_PROF_HOOK_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_inlines.h b/deps/jemalloc/include/jemalloc/internal/prof_inlines.h new file mode 100644 index 0000000..a8e7e7f --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_inlines.h @@ -0,0 +1,261 @@ +#ifndef JEMALLOC_INTERNAL_PROF_INLINES_H +#define JEMALLOC_INTERNAL_PROF_INLINES_H + +#include "jemalloc/internal/safety_check.h" +#include "jemalloc/internal/sz.h" +#include "jemalloc/internal/thread_event.h" + +JEMALLOC_ALWAYS_INLINE void +prof_active_assert() { + cassert(config_prof); + /* + * If opt_prof is off, then prof_active must always be off, regardless + * of whether prof_active_mtx is in effect or not. + */ + assert(opt_prof || !prof_active_state); +} + +JEMALLOC_ALWAYS_INLINE bool +prof_active_get_unlocked(void) { + prof_active_assert(); + /* + * Even if opt_prof is true, sampling can be temporarily disabled by + * setting prof_active to false. No locking is used when reading + * prof_active in the fast path, so there are no guarantees regarding + * how long it will take for all threads to notice state changes. + */ + return prof_active_state; +} + +JEMALLOC_ALWAYS_INLINE bool +prof_gdump_get_unlocked(void) { + /* + * No locking is used when reading prof_gdump_val in the fast path, so + * there are no guarantees regarding how long it will take for all + * threads to notice state changes. + */ + return prof_gdump_val; +} + +JEMALLOC_ALWAYS_INLINE prof_tdata_t * +prof_tdata_get(tsd_t *tsd, bool create) { + prof_tdata_t *tdata; + + cassert(config_prof); + + tdata = tsd_prof_tdata_get(tsd); + if (create) { + assert(tsd_reentrancy_level_get(tsd) == 0); + if (unlikely(tdata == NULL)) { + if (tsd_nominal(tsd)) { + tdata = prof_tdata_init(tsd); + tsd_prof_tdata_set(tsd, tdata); + } + } else if (unlikely(tdata->expired)) { + tdata = prof_tdata_reinit(tsd, tdata); + tsd_prof_tdata_set(tsd, tdata); + } + assert(tdata == NULL || tdata->attached); + } + + return tdata; +} + +JEMALLOC_ALWAYS_INLINE void +prof_info_get(tsd_t *tsd, const void *ptr, emap_alloc_ctx_t *alloc_ctx, + prof_info_t *prof_info) { + cassert(config_prof); + assert(ptr != NULL); + assert(prof_info != NULL); + + arena_prof_info_get(tsd, ptr, alloc_ctx, prof_info, false); +} + +JEMALLOC_ALWAYS_INLINE void +prof_info_get_and_reset_recent(tsd_t *tsd, const void *ptr, + emap_alloc_ctx_t *alloc_ctx, prof_info_t *prof_info) { + cassert(config_prof); + assert(ptr != NULL); + assert(prof_info != NULL); + + arena_prof_info_get(tsd, ptr, alloc_ctx, prof_info, true); +} + +JEMALLOC_ALWAYS_INLINE void +prof_tctx_reset(tsd_t *tsd, const void *ptr, emap_alloc_ctx_t *alloc_ctx) { + cassert(config_prof); + assert(ptr != NULL); + + arena_prof_tctx_reset(tsd, ptr, alloc_ctx); +} + +JEMALLOC_ALWAYS_INLINE void +prof_tctx_reset_sampled(tsd_t *tsd, const void *ptr) { + cassert(config_prof); + assert(ptr != NULL); + + arena_prof_tctx_reset_sampled(tsd, ptr); +} + +JEMALLOC_ALWAYS_INLINE void +prof_info_set(tsd_t *tsd, edata_t *edata, prof_tctx_t *tctx, size_t size) { + cassert(config_prof); + assert(edata != NULL); + assert((uintptr_t)tctx > (uintptr_t)1U); + + arena_prof_info_set(tsd, edata, tctx, size); +} + +JEMALLOC_ALWAYS_INLINE bool +prof_sample_should_skip(tsd_t *tsd, bool sample_event) { + cassert(config_prof); + + /* Fastpath: no need to load tdata */ + if (likely(!sample_event)) { + return true; + } + + /* + * sample_event is always obtained from the thread event module, and + * whenever it's true, it means that the thread event module has + * already checked the reentrancy level. + */ + assert(tsd_reentrancy_level_get(tsd) == 0); + + prof_tdata_t *tdata = prof_tdata_get(tsd, true); + if (unlikely(tdata == NULL)) { + return true; + } + + return !tdata->active; +} + +JEMALLOC_ALWAYS_INLINE prof_tctx_t * +prof_alloc_prep(tsd_t *tsd, bool prof_active, bool sample_event) { + prof_tctx_t *ret; + + if (!prof_active || + likely(prof_sample_should_skip(tsd, sample_event))) { + ret = (prof_tctx_t *)(uintptr_t)1U; + } else { + ret = prof_tctx_create(tsd); + } + + return ret; +} + +JEMALLOC_ALWAYS_INLINE void +prof_malloc(tsd_t *tsd, const void *ptr, size_t size, size_t usize, + emap_alloc_ctx_t *alloc_ctx, prof_tctx_t *tctx) { + cassert(config_prof); + assert(ptr != NULL); + assert(usize == isalloc(tsd_tsdn(tsd), ptr)); + + if (unlikely((uintptr_t)tctx > (uintptr_t)1U)) { + prof_malloc_sample_object(tsd, ptr, size, usize, tctx); + } else { + prof_tctx_reset(tsd, ptr, alloc_ctx); + } +} + +JEMALLOC_ALWAYS_INLINE void +prof_realloc(tsd_t *tsd, const void *ptr, size_t size, size_t usize, + prof_tctx_t *tctx, bool prof_active, const void *old_ptr, size_t old_usize, + prof_info_t *old_prof_info, bool sample_event) { + bool sampled, old_sampled, moved; + + cassert(config_prof); + assert(ptr != NULL || (uintptr_t)tctx <= (uintptr_t)1U); + + if (prof_active && ptr != NULL) { + assert(usize == isalloc(tsd_tsdn(tsd), ptr)); + if (prof_sample_should_skip(tsd, sample_event)) { + /* + * Don't sample. The usize passed to prof_alloc_prep() + * was larger than what actually got allocated, so a + * backtrace was captured for this allocation, even + * though its actual usize was insufficient to cross the + * sample threshold. + */ + prof_alloc_rollback(tsd, tctx); + tctx = (prof_tctx_t *)(uintptr_t)1U; + } + } + + sampled = ((uintptr_t)tctx > (uintptr_t)1U); + old_sampled = ((uintptr_t)old_prof_info->alloc_tctx > (uintptr_t)1U); + moved = (ptr != old_ptr); + + if (unlikely(sampled)) { + prof_malloc_sample_object(tsd, ptr, size, usize, tctx); + } else if (moved) { + prof_tctx_reset(tsd, ptr, NULL); + } else if (unlikely(old_sampled)) { + /* + * prof_tctx_reset() would work for the !moved case as well, + * but prof_tctx_reset_sampled() is slightly cheaper, and the + * proper thing to do here in the presence of explicit + * knowledge re: moved state. + */ + prof_tctx_reset_sampled(tsd, ptr); + } else { + prof_info_t prof_info; + prof_info_get(tsd, ptr, NULL, &prof_info); + assert((uintptr_t)prof_info.alloc_tctx == (uintptr_t)1U); + } + + /* + * The prof_free_sampled_object() call must come after the + * prof_malloc_sample_object() call, because tctx and old_tctx may be + * the same, in which case reversing the call order could cause the tctx + * to be prematurely destroyed as a side effect of momentarily zeroed + * counters. + */ + if (unlikely(old_sampled)) { + prof_free_sampled_object(tsd, old_usize, old_prof_info); + } +} + +JEMALLOC_ALWAYS_INLINE size_t +prof_sample_align(size_t orig_align) { + /* + * Enforce page alignment, so that sampled allocations can be identified + * w/o metadata lookup. + */ + assert(opt_prof); + return (opt_cache_oblivious && orig_align < PAGE) ? PAGE : + orig_align; +} + +JEMALLOC_ALWAYS_INLINE bool +prof_sample_aligned(const void *ptr) { + return ((uintptr_t)ptr & PAGE_MASK) == 0; +} + +JEMALLOC_ALWAYS_INLINE bool +prof_sampled(tsd_t *tsd, const void *ptr) { + prof_info_t prof_info; + prof_info_get(tsd, ptr, NULL, &prof_info); + bool sampled = (uintptr_t)prof_info.alloc_tctx > (uintptr_t)1U; + if (sampled) { + assert(prof_sample_aligned(ptr)); + } + return sampled; +} + +JEMALLOC_ALWAYS_INLINE void +prof_free(tsd_t *tsd, const void *ptr, size_t usize, + emap_alloc_ctx_t *alloc_ctx) { + prof_info_t prof_info; + prof_info_get_and_reset_recent(tsd, ptr, alloc_ctx, &prof_info); + + cassert(config_prof); + assert(usize == isalloc(tsd_tsdn(tsd), ptr)); + + if (unlikely((uintptr_t)prof_info.alloc_tctx > (uintptr_t)1U)) { + assert(prof_sample_aligned(ptr)); + prof_free_sampled_object(tsd, usize, &prof_info); + } +} + +#endif /* JEMALLOC_INTERNAL_PROF_INLINES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_log.h b/deps/jemalloc/include/jemalloc/internal/prof_log.h new file mode 100644 index 0000000..ccb557d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_log.h @@ -0,0 +1,22 @@ +#ifndef JEMALLOC_INTERNAL_PROF_LOG_H +#define JEMALLOC_INTERNAL_PROF_LOG_H + +#include "jemalloc/internal/mutex.h" + +extern malloc_mutex_t log_mtx; + +void prof_try_log(tsd_t *tsd, size_t usize, prof_info_t *prof_info); +bool prof_log_init(tsd_t *tsdn); + +/* Used in unit tests. */ +size_t prof_log_bt_count(void); +size_t prof_log_alloc_count(void); +size_t prof_log_thr_count(void); +bool prof_log_is_logging(void); +bool prof_log_rep_check(void); +void prof_log_dummy_set(bool new_value); + +bool prof_log_start(tsdn_t *tsdn, const char *filename); +bool prof_log_stop(tsdn_t *tsdn); + +#endif /* JEMALLOC_INTERNAL_PROF_LOG_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_recent.h b/deps/jemalloc/include/jemalloc/internal/prof_recent.h new file mode 100644 index 0000000..df41023 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_recent.h @@ -0,0 +1,23 @@ +#ifndef JEMALLOC_INTERNAL_PROF_RECENT_H +#define JEMALLOC_INTERNAL_PROF_RECENT_H + +extern malloc_mutex_t prof_recent_alloc_mtx; +extern malloc_mutex_t prof_recent_dump_mtx; + +bool prof_recent_alloc_prepare(tsd_t *tsd, prof_tctx_t *tctx); +void prof_recent_alloc(tsd_t *tsd, edata_t *edata, size_t size, size_t usize); +void prof_recent_alloc_reset(tsd_t *tsd, edata_t *edata); +bool prof_recent_init(); +void edata_prof_recent_alloc_init(edata_t *edata); + +/* Used in unit tests. */ +typedef ql_head(prof_recent_t) prof_recent_list_t; +extern prof_recent_list_t prof_recent_alloc_list; +edata_t *prof_recent_alloc_edata_get_no_lock_test(const prof_recent_t *node); +prof_recent_t *edata_prof_recent_alloc_get_no_lock_test(const edata_t *edata); + +ssize_t prof_recent_alloc_max_ctl_read(); +ssize_t prof_recent_alloc_max_ctl_write(tsd_t *tsd, ssize_t max); +void prof_recent_alloc_dump(tsd_t *tsd, write_cb_t *write_cb, void *cbopaque); + +#endif /* JEMALLOC_INTERNAL_PROF_RECENT_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_stats.h b/deps/jemalloc/include/jemalloc/internal/prof_stats.h new file mode 100644 index 0000000..7954e82 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_stats.h @@ -0,0 +1,17 @@ +#ifndef JEMALLOC_INTERNAL_PROF_STATS_H +#define JEMALLOC_INTERNAL_PROF_STATS_H + +typedef struct prof_stats_s prof_stats_t; +struct prof_stats_s { + uint64_t req_sum; + uint64_t count; +}; + +extern malloc_mutex_t prof_stats_mtx; + +void prof_stats_inc(tsd_t *tsd, szind_t ind, size_t size); +void prof_stats_dec(tsd_t *tsd, szind_t ind, size_t size); +void prof_stats_get_live(tsd_t *tsd, szind_t ind, prof_stats_t *stats); +void prof_stats_get_accum(tsd_t *tsd, szind_t ind, prof_stats_t *stats); + +#endif /* JEMALLOC_INTERNAL_PROF_STATS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_structs.h b/deps/jemalloc/include/jemalloc/internal/prof_structs.h new file mode 100644 index 0000000..dd22115 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_structs.h @@ -0,0 +1,221 @@ +#ifndef JEMALLOC_INTERNAL_PROF_STRUCTS_H +#define JEMALLOC_INTERNAL_PROF_STRUCTS_H + +#include "jemalloc/internal/ckh.h" +#include "jemalloc/internal/edata.h" +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/prng.h" +#include "jemalloc/internal/rb.h" + +struct prof_bt_s { + /* Backtrace, stored as len program counters. */ + void **vec; + unsigned len; +}; + +#ifdef JEMALLOC_PROF_LIBGCC +/* Data structure passed to libgcc _Unwind_Backtrace() callback functions. */ +typedef struct { + void **vec; + unsigned *len; + unsigned max; +} prof_unwind_data_t; +#endif + +struct prof_cnt_s { + /* Profiling counters. */ + uint64_t curobjs; + uint64_t curobjs_shifted_unbiased; + uint64_t curbytes; + uint64_t curbytes_unbiased; + uint64_t accumobjs; + uint64_t accumobjs_shifted_unbiased; + uint64_t accumbytes; + uint64_t accumbytes_unbiased; +}; + +typedef enum { + prof_tctx_state_initializing, + prof_tctx_state_nominal, + prof_tctx_state_dumping, + prof_tctx_state_purgatory /* Dumper must finish destroying. */ +} prof_tctx_state_t; + +struct prof_tctx_s { + /* Thread data for thread that performed the allocation. */ + prof_tdata_t *tdata; + + /* + * Copy of tdata->thr_{uid,discrim}, necessary because tdata may be + * defunct during teardown. + */ + uint64_t thr_uid; + uint64_t thr_discrim; + + /* + * Reference count of how many times this tctx object is referenced in + * recent allocation / deallocation records, protected by tdata->lock. + */ + uint64_t recent_count; + + /* Profiling counters, protected by tdata->lock. */ + prof_cnt_t cnts; + + /* Associated global context. */ + prof_gctx_t *gctx; + + /* + * UID that distinguishes multiple tctx's created by the same thread, + * but coexisting in gctx->tctxs. There are two ways that such + * coexistence can occur: + * - A dumper thread can cause a tctx to be retained in the purgatory + * state. + * - Although a single "producer" thread must create all tctx's which + * share the same thr_uid, multiple "consumers" can each concurrently + * execute portions of prof_tctx_destroy(). prof_tctx_destroy() only + * gets called once each time cnts.cur{objs,bytes} drop to 0, but this + * threshold can be hit again before the first consumer finishes + * executing prof_tctx_destroy(). + */ + uint64_t tctx_uid; + + /* Linkage into gctx's tctxs. */ + rb_node(prof_tctx_t) tctx_link; + + /* + * True during prof_alloc_prep()..prof_malloc_sample_object(), prevents + * sample vs destroy race. + */ + bool prepared; + + /* Current dump-related state, protected by gctx->lock. */ + prof_tctx_state_t state; + + /* + * Copy of cnts snapshotted during early dump phase, protected by + * dump_mtx. + */ + prof_cnt_t dump_cnts; +}; +typedef rb_tree(prof_tctx_t) prof_tctx_tree_t; + +struct prof_info_s { + /* Time when the allocation was made. */ + nstime_t alloc_time; + /* Points to the prof_tctx_t corresponding to the allocation. */ + prof_tctx_t *alloc_tctx; + /* Allocation request size. */ + size_t alloc_size; +}; + +struct prof_gctx_s { + /* Protects nlimbo, cnt_summed, and tctxs. */ + malloc_mutex_t *lock; + + /* + * Number of threads that currently cause this gctx to be in a state of + * limbo due to one of: + * - Initializing this gctx. + * - Initializing per thread counters associated with this gctx. + * - Preparing to destroy this gctx. + * - Dumping a heap profile that includes this gctx. + * nlimbo must be 1 (single destroyer) in order to safely destroy the + * gctx. + */ + unsigned nlimbo; + + /* + * Tree of profile counters, one for each thread that has allocated in + * this context. + */ + prof_tctx_tree_t tctxs; + + /* Linkage for tree of contexts to be dumped. */ + rb_node(prof_gctx_t) dump_link; + + /* Temporary storage for summation during dump. */ + prof_cnt_t cnt_summed; + + /* Associated backtrace. */ + prof_bt_t bt; + + /* Backtrace vector, variable size, referred to by bt. */ + void *vec[1]; +}; +typedef rb_tree(prof_gctx_t) prof_gctx_tree_t; + +struct prof_tdata_s { + malloc_mutex_t *lock; + + /* Monotonically increasing unique thread identifier. */ + uint64_t thr_uid; + + /* + * Monotonically increasing discriminator among tdata structures + * associated with the same thr_uid. + */ + uint64_t thr_discrim; + + /* Included in heap profile dumps if non-NULL. */ + char *thread_name; + + bool attached; + bool expired; + + rb_node(prof_tdata_t) tdata_link; + + /* + * Counter used to initialize prof_tctx_t's tctx_uid. No locking is + * necessary when incrementing this field, because only one thread ever + * does so. + */ + uint64_t tctx_uid_next; + + /* + * Hash of (prof_bt_t *)-->(prof_tctx_t *). Each thread tracks + * backtraces for which it has non-zero allocation/deallocation counters + * associated with thread-specific prof_tctx_t objects. Other threads + * may write to prof_tctx_t contents when freeing associated objects. + */ + ckh_t bt2tctx; + + /* State used to avoid dumping while operating on prof internals. */ + bool enq; + bool enq_idump; + bool enq_gdump; + + /* + * Set to true during an early dump phase for tdata's which are + * currently being dumped. New threads' tdata's have this initialized + * to false so that they aren't accidentally included in later dump + * phases. + */ + bool dumping; + + /* + * True if profiling is active for this tdata's thread + * (thread.prof.active mallctl). + */ + bool active; + + /* Temporary storage for summation during dump. */ + prof_cnt_t cnt_summed; + + /* Backtrace vector, used for calls to prof_backtrace(). */ + void *vec[PROF_BT_MAX]; +}; +typedef rb_tree(prof_tdata_t) prof_tdata_tree_t; + +struct prof_recent_s { + nstime_t alloc_time; + nstime_t dalloc_time; + + ql_elm(prof_recent_t) link; + size_t size; + size_t usize; + atomic_p_t alloc_edata; /* NULL means allocation has been freed. */ + prof_tctx_t *alloc_tctx; + prof_tctx_t *dalloc_tctx; +}; + +#endif /* JEMALLOC_INTERNAL_PROF_STRUCTS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_sys.h b/deps/jemalloc/include/jemalloc/internal/prof_sys.h new file mode 100644 index 0000000..3d25a42 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_sys.h @@ -0,0 +1,30 @@ +#ifndef JEMALLOC_INTERNAL_PROF_SYS_H +#define JEMALLOC_INTERNAL_PROF_SYS_H + +extern malloc_mutex_t prof_dump_filename_mtx; +extern base_t *prof_base; + +void bt_init(prof_bt_t *bt, void **vec); +void prof_backtrace(tsd_t *tsd, prof_bt_t *bt); +void prof_hooks_init(); +void prof_unwind_init(); +void prof_sys_thread_name_fetch(tsd_t *tsd); +int prof_getpid(void); +void prof_get_default_filename(tsdn_t *tsdn, char *filename, uint64_t ind); +bool prof_prefix_set(tsdn_t *tsdn, const char *prefix); +void prof_fdump_impl(tsd_t *tsd); +void prof_idump_impl(tsd_t *tsd); +bool prof_mdump_impl(tsd_t *tsd, const char *filename); +void prof_gdump_impl(tsd_t *tsd); + +/* Used in unit tests. */ +typedef int (prof_sys_thread_name_read_t)(char *buf, size_t limit); +extern prof_sys_thread_name_read_t *JET_MUTABLE prof_sys_thread_name_read; +typedef int (prof_dump_open_file_t)(const char *, int); +extern prof_dump_open_file_t *JET_MUTABLE prof_dump_open_file; +typedef ssize_t (prof_dump_write_file_t)(int, const void *, size_t); +extern prof_dump_write_file_t *JET_MUTABLE prof_dump_write_file; +typedef int (prof_dump_open_maps_t)(); +extern prof_dump_open_maps_t *JET_MUTABLE prof_dump_open_maps; + +#endif /* JEMALLOC_INTERNAL_PROF_SYS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/prof_types.h b/deps/jemalloc/include/jemalloc/internal/prof_types.h new file mode 100644 index 0000000..ba62865 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/prof_types.h @@ -0,0 +1,75 @@ +#ifndef JEMALLOC_INTERNAL_PROF_TYPES_H +#define JEMALLOC_INTERNAL_PROF_TYPES_H + +typedef struct prof_bt_s prof_bt_t; +typedef struct prof_cnt_s prof_cnt_t; +typedef struct prof_tctx_s prof_tctx_t; +typedef struct prof_info_s prof_info_t; +typedef struct prof_gctx_s prof_gctx_t; +typedef struct prof_tdata_s prof_tdata_t; +typedef struct prof_recent_s prof_recent_t; + +/* Option defaults. */ +#ifdef JEMALLOC_PROF +# define PROF_PREFIX_DEFAULT "jeprof" +#else +# define PROF_PREFIX_DEFAULT "" +#endif +#define LG_PROF_SAMPLE_DEFAULT 19 +#define LG_PROF_INTERVAL_DEFAULT -1 + +/* + * Hard limit on stack backtrace depth. The version of prof_backtrace() that + * is based on __builtin_return_address() necessarily has a hard-coded number + * of backtrace frame handlers, and should be kept in sync with this setting. + */ +#define PROF_BT_MAX 128 + +/* Initial hash table size. */ +#define PROF_CKH_MINITEMS 64 + +/* Size of memory buffer to use when writing dump files. */ +#ifndef JEMALLOC_PROF +/* Minimize memory bloat for non-prof builds. */ +# define PROF_DUMP_BUFSIZE 1 +#elif defined(JEMALLOC_DEBUG) +/* Use a small buffer size in debug build, mainly to facilitate testing. */ +# define PROF_DUMP_BUFSIZE 16 +#else +# define PROF_DUMP_BUFSIZE 65536 +#endif + +/* Size of size class related tables */ +#ifdef JEMALLOC_PROF +# define PROF_SC_NSIZES SC_NSIZES +#else +/* Minimize memory bloat for non-prof builds. */ +# define PROF_SC_NSIZES 1 +#endif + +/* Size of stack-allocated buffer used by prof_printf(). */ +#define PROF_PRINTF_BUFSIZE 128 + +/* + * Number of mutexes shared among all gctx's. No space is allocated for these + * unless profiling is enabled, so it's okay to over-provision. + */ +#define PROF_NCTX_LOCKS 1024 + +/* + * Number of mutexes shared among all tdata's. No space is allocated for these + * unless profiling is enabled, so it's okay to over-provision. + */ +#define PROF_NTDATA_LOCKS 256 + +/* Minimize memory bloat for non-prof builds. */ +#ifdef JEMALLOC_PROF +#define PROF_DUMP_FILENAME_LEN (PATH_MAX + 1) +#else +#define PROF_DUMP_FILENAME_LEN 1 +#endif + +/* Default number of recent allocations to record. */ +#define PROF_RECENT_ALLOC_MAX_DEFAULT 0 + +#endif /* JEMALLOC_INTERNAL_PROF_TYPES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/psset.h b/deps/jemalloc/include/jemalloc/internal/psset.h new file mode 100644 index 0000000..e1d6497 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/psset.h @@ -0,0 +1,131 @@ +#ifndef JEMALLOC_INTERNAL_PSSET_H +#define JEMALLOC_INTERNAL_PSSET_H + +#include "jemalloc/internal/hpdata.h" + +/* + * A page-slab set. What the eset is to PAC, the psset is to HPA. It maintains + * a collection of page-slabs (the intent being that they are backed by + * hugepages, or at least could be), and handles allocation and deallocation + * requests. + */ + +/* + * One more than the maximum pszind_t we will serve out of the HPA. + * Practically, we expect only the first few to be actually used. This + * corresponds to a maximum size of of 512MB on systems with 4k pages and + * SC_NGROUP == 4, which is already an unreasonably large maximum. Morally, you + * can think of this as being SC_NPSIZES, but there's no sense in wasting that + * much space in the arena, making bitmaps that much larger, etc. + */ +#define PSSET_NPSIZES 64 + +/* + * We keep two purge lists per page size class; one for hugified hpdatas (at + * index 2*pszind), and one for the non-hugified hpdatas (at index 2*pszind + + * 1). This lets us implement a preference for purging non-hugified hpdatas + * among similarly-dirty ones. + * We reserve the last two indices for empty slabs, in that case purging + * hugified ones (which are definitionally all waste) before non-hugified ones + * (i.e. reversing the order). + */ +#define PSSET_NPURGE_LISTS (2 * PSSET_NPSIZES) + +typedef struct psset_bin_stats_s psset_bin_stats_t; +struct psset_bin_stats_s { + /* How many pageslabs are in this bin? */ + size_t npageslabs; + /* Of them, how many pages are active? */ + size_t nactive; + /* And how many are dirty? */ + size_t ndirty; +}; + +typedef struct psset_stats_s psset_stats_t; +struct psset_stats_s { + /* + * The second index is huge stats; nonfull_slabs[pszind][0] contains + * stats for the non-huge slabs in bucket pszind, while + * nonfull_slabs[pszind][1] contains stats for the huge slabs. + */ + psset_bin_stats_t nonfull_slabs[PSSET_NPSIZES][2]; + + /* + * Full slabs don't live in any edata heap, but we still track their + * stats. + */ + psset_bin_stats_t full_slabs[2]; + + /* Empty slabs are similar. */ + psset_bin_stats_t empty_slabs[2]; +}; + +typedef struct psset_s psset_t; +struct psset_s { + /* + * The pageslabs, quantized by the size class of the largest contiguous + * free run of pages in a pageslab. + */ + hpdata_age_heap_t pageslabs[PSSET_NPSIZES]; + /* Bitmap for which set bits correspond to non-empty heaps. */ + fb_group_t pageslab_bitmap[FB_NGROUPS(PSSET_NPSIZES)]; + /* + * The sum of all bin stats in stats. This lets us quickly answer + * queries for the number of dirty, active, and retained pages in the + * entire set. + */ + psset_bin_stats_t merged_stats; + psset_stats_t stats; + /* + * Slabs with no active allocations, but which are allowed to serve new + * allocations. + */ + hpdata_empty_list_t empty; + /* + * Slabs which are available to be purged, ordered by how much we want + * to purge them (with later indices indicating slabs we want to purge + * more). + */ + hpdata_purge_list_t to_purge[PSSET_NPURGE_LISTS]; + /* Bitmap for which set bits correspond to non-empty purge lists. */ + fb_group_t purge_bitmap[FB_NGROUPS(PSSET_NPURGE_LISTS)]; + /* Slabs which are available to be hugified. */ + hpdata_hugify_list_t to_hugify; +}; + +void psset_init(psset_t *psset); +void psset_stats_accum(psset_stats_t *dst, psset_stats_t *src); + +/* + * Begin or end updating the given pageslab's metadata. While the pageslab is + * being updated, it won't be returned from psset_fit calls. + */ +void psset_update_begin(psset_t *psset, hpdata_t *ps); +void psset_update_end(psset_t *psset, hpdata_t *ps); + +/* Analogous to the eset_fit; pick a hpdata to serve the request. */ +hpdata_t *psset_pick_alloc(psset_t *psset, size_t size); +/* Pick one to purge. */ +hpdata_t *psset_pick_purge(psset_t *psset); +/* Pick one to hugify. */ +hpdata_t *psset_pick_hugify(psset_t *psset); + +void psset_insert(psset_t *psset, hpdata_t *ps); +void psset_remove(psset_t *psset, hpdata_t *ps); + +static inline size_t +psset_npageslabs(psset_t *psset) { + return psset->merged_stats.npageslabs; +} + +static inline size_t +psset_nactive(psset_t *psset) { + return psset->merged_stats.nactive; +} + +static inline size_t +psset_ndirty(psset_t *psset) { + return psset->merged_stats.ndirty; +} + +#endif /* JEMALLOC_INTERNAL_PSSET_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/public_namespace.sh b/deps/jemalloc/include/jemalloc/internal/public_namespace.sh new file mode 100755 index 0000000..4d415ba --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/public_namespace.sh @@ -0,0 +1,6 @@ +#!/bin/sh + +for nm in `cat $1` ; do + n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'` + echo "#define je_${n} JEMALLOC_N(${n})" +done diff --git a/deps/jemalloc/include/jemalloc/internal/public_unnamespace.sh b/deps/jemalloc/include/jemalloc/internal/public_unnamespace.sh new file mode 100755 index 0000000..4239d17 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/public_unnamespace.sh @@ -0,0 +1,6 @@ +#!/bin/sh + +for nm in `cat $1` ; do + n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'` + echo "#undef je_${n}" +done diff --git a/deps/jemalloc/include/jemalloc/internal/ql.h b/deps/jemalloc/include/jemalloc/internal/ql.h new file mode 100644 index 0000000..c7f52f8 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ql.h @@ -0,0 +1,197 @@ +#ifndef JEMALLOC_INTERNAL_QL_H +#define JEMALLOC_INTERNAL_QL_H + +#include "jemalloc/internal/qr.h" + +/* + * A linked-list implementation. + * + * This is built on top of the ring implementation, but that can be viewed as an + * implementation detail (i.e. trying to advance past the tail of the list + * doesn't wrap around). + * + * You define a struct like so: + * typedef strucy my_s my_t; + * struct my_s { + * int data; + * ql_elm(my_t) my_link; + * }; + * + * // We wobble between "list" and "head" for this type; we're now mostly + * // heading towards "list". + * typedef ql_head(my_t) my_list_t; + * + * You then pass a my_list_t * for a_head arguments, a my_t * for a_elm + * arguments, the token "my_link" for a_field arguments, and the token "my_t" + * for a_type arguments. + */ + +/* List definitions. */ +#define ql_head(a_type) \ +struct { \ + a_type *qlh_first; \ +} + +/* Static initializer for an empty list. */ +#define ql_head_initializer(a_head) {NULL} + +/* The field definition. */ +#define ql_elm(a_type) qr(a_type) + +/* A pointer to the first element in the list, or NULL if the list is empty. */ +#define ql_first(a_head) ((a_head)->qlh_first) + +/* Dynamically initializes a list. */ +#define ql_new(a_head) do { \ + ql_first(a_head) = NULL; \ +} while (0) + +/* + * Sets dest to be the contents of src (overwriting any elements there), leaving + * src empty. + */ +#define ql_move(a_head_dest, a_head_src) do { \ + ql_first(a_head_dest) = ql_first(a_head_src); \ + ql_new(a_head_src); \ +} while (0) + +/* True if the list is empty, otherwise false. */ +#define ql_empty(a_head) (ql_first(a_head) == NULL) + +/* + * Initializes a ql_elm. Must be called even if the field is about to be + * overwritten. + */ +#define ql_elm_new(a_elm, a_field) qr_new((a_elm), a_field) + +/* + * Obtains the last item in the list. + */ +#define ql_last(a_head, a_field) \ + (ql_empty(a_head) ? NULL : qr_prev(ql_first(a_head), a_field)) + +/* + * Gets a pointer to the next/prev element in the list. Trying to advance past + * the end or retreat before the beginning of the list returns NULL. + */ +#define ql_next(a_head, a_elm, a_field) \ + ((ql_last(a_head, a_field) != (a_elm)) \ + ? qr_next((a_elm), a_field) : NULL) +#define ql_prev(a_head, a_elm, a_field) \ + ((ql_first(a_head) != (a_elm)) ? qr_prev((a_elm), a_field) \ + : NULL) + +/* Inserts a_elm before a_qlelm in the list. */ +#define ql_before_insert(a_head, a_qlelm, a_elm, a_field) do { \ + qr_before_insert((a_qlelm), (a_elm), a_field); \ + if (ql_first(a_head) == (a_qlelm)) { \ + ql_first(a_head) = (a_elm); \ + } \ +} while (0) + +/* Inserts a_elm after a_qlelm in the list. */ +#define ql_after_insert(a_qlelm, a_elm, a_field) \ + qr_after_insert((a_qlelm), (a_elm), a_field) + +/* Inserts a_elm as the first item in the list. */ +#define ql_head_insert(a_head, a_elm, a_field) do { \ + if (!ql_empty(a_head)) { \ + qr_before_insert(ql_first(a_head), (a_elm), a_field); \ + } \ + ql_first(a_head) = (a_elm); \ +} while (0) + +/* Inserts a_elm as the last item in the list. */ +#define ql_tail_insert(a_head, a_elm, a_field) do { \ + if (!ql_empty(a_head)) { \ + qr_before_insert(ql_first(a_head), (a_elm), a_field); \ + } \ + ql_first(a_head) = qr_next((a_elm), a_field); \ +} while (0) + +/* + * Given lists a = [a_1, ..., a_n] and [b_1, ..., b_n], results in: + * a = [a1, ..., a_n, b_1, ..., b_n] and b = []. + */ +#define ql_concat(a_head_a, a_head_b, a_field) do { \ + if (ql_empty(a_head_a)) { \ + ql_move(a_head_a, a_head_b); \ + } else if (!ql_empty(a_head_b)) { \ + qr_meld(ql_first(a_head_a), ql_first(a_head_b), \ + a_field); \ + ql_new(a_head_b); \ + } \ +} while (0) + +/* Removes a_elm from the list. */ +#define ql_remove(a_head, a_elm, a_field) do { \ + if (ql_first(a_head) == (a_elm)) { \ + ql_first(a_head) = qr_next(ql_first(a_head), a_field); \ + } \ + if (ql_first(a_head) != (a_elm)) { \ + qr_remove((a_elm), a_field); \ + } else { \ + ql_new(a_head); \ + } \ +} while (0) + +/* Removes the first item in the list. */ +#define ql_head_remove(a_head, a_type, a_field) do { \ + a_type *t = ql_first(a_head); \ + ql_remove((a_head), t, a_field); \ +} while (0) + +/* Removes the last item in the list. */ +#define ql_tail_remove(a_head, a_type, a_field) do { \ + a_type *t = ql_last(a_head, a_field); \ + ql_remove((a_head), t, a_field); \ +} while (0) + +/* + * Given a = [a_1, a_2, ..., a_n-1, a_n, a_n+1, ...], + * ql_split(a, a_n, b, some_field) results in + * a = [a_1, a_2, ..., a_n-1] + * and replaces b's contents with: + * b = [a_n, a_n+1, ...] + */ +#define ql_split(a_head_a, a_elm, a_head_b, a_field) do { \ + if (ql_first(a_head_a) == (a_elm)) { \ + ql_move(a_head_b, a_head_a); \ + } else { \ + qr_split(ql_first(a_head_a), (a_elm), a_field); \ + ql_first(a_head_b) = (a_elm); \ + } \ +} while (0) + +/* + * An optimized version of: + * a_type *t = ql_first(a_head); + * ql_remove((a_head), t, a_field); + * ql_tail_insert((a_head), t, a_field); + */ +#define ql_rotate(a_head, a_field) do { \ + ql_first(a_head) = qr_next(ql_first(a_head), a_field); \ +} while (0) + +/* + * Helper macro to iterate over each element in a list in order, starting from + * the head (or in reverse order, starting from the tail). The usage is + * (assuming my_t and my_list_t defined as above). + * + * int sum(my_list_t *list) { + * int sum = 0; + * my_t *iter; + * ql_foreach(iter, list, link) { + * sum += iter->data; + * } + * return sum; + * } + */ + +#define ql_foreach(a_var, a_head, a_field) \ + qr_foreach((a_var), ql_first(a_head), a_field) + +#define ql_reverse_foreach(a_var, a_head, a_field) \ + qr_reverse_foreach((a_var), ql_first(a_head), a_field) + +#endif /* JEMALLOC_INTERNAL_QL_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/qr.h b/deps/jemalloc/include/jemalloc/internal/qr.h new file mode 100644 index 0000000..ece4f55 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/qr.h @@ -0,0 +1,140 @@ +#ifndef JEMALLOC_INTERNAL_QR_H +#define JEMALLOC_INTERNAL_QR_H + +/* + * A ring implementation based on an embedded circular doubly-linked list. + * + * You define your struct like so: + * + * typedef struct my_s my_t; + * struct my_s { + * int data; + * qr(my_t) my_link; + * }; + * + * And then pass a my_t * into macros for a_qr arguments, and the token + * "my_link" into a_field fields. + */ + +/* Ring definitions. */ +#define qr(a_type) \ +struct { \ + a_type *qre_next; \ + a_type *qre_prev; \ +} + +/* + * Initialize a qr link. Every link must be initialized before being used, even + * if that initialization is going to be immediately overwritten (say, by being + * passed into an insertion macro). + */ +#define qr_new(a_qr, a_field) do { \ + (a_qr)->a_field.qre_next = (a_qr); \ + (a_qr)->a_field.qre_prev = (a_qr); \ +} while (0) + +/* + * Go forwards or backwards in the ring. Note that (the ring being circular), this + * always succeeds -- you just keep looping around and around the ring if you + * chase pointers without end. + */ +#define qr_next(a_qr, a_field) ((a_qr)->a_field.qre_next) +#define qr_prev(a_qr, a_field) ((a_qr)->a_field.qre_prev) + +/* + * Given two rings: + * a -> a_1 -> ... -> a_n -- + * ^ | + * |------------------------ + * + * b -> b_1 -> ... -> b_n -- + * ^ | + * |------------------------ + * + * Results in the ring: + * a -> a_1 -> ... -> a_n -> b -> b_1 -> ... -> b_n -- + * ^ | + * |-------------------------------------------------| + * + * a_qr_a can directly be a qr_next() macro, but a_qr_b cannot. + */ +#define qr_meld(a_qr_a, a_qr_b, a_field) do { \ + (a_qr_b)->a_field.qre_prev->a_field.qre_next = \ + (a_qr_a)->a_field.qre_prev; \ + (a_qr_a)->a_field.qre_prev = (a_qr_b)->a_field.qre_prev; \ + (a_qr_b)->a_field.qre_prev = \ + (a_qr_b)->a_field.qre_prev->a_field.qre_next; \ + (a_qr_a)->a_field.qre_prev->a_field.qre_next = (a_qr_a); \ + (a_qr_b)->a_field.qre_prev->a_field.qre_next = (a_qr_b); \ +} while (0) + +/* + * Logically, this is just a meld. The intent, though, is that a_qrelm is a + * single-element ring, so that "before" has a more obvious interpretation than + * meld. + */ +#define qr_before_insert(a_qrelm, a_qr, a_field) \ + qr_meld((a_qrelm), (a_qr), a_field) + +/* Ditto, but inserting after rather than before. */ +#define qr_after_insert(a_qrelm, a_qr, a_field) \ + qr_before_insert(qr_next(a_qrelm, a_field), (a_qr), a_field) + +/* + * Inverts meld; given the ring: + * a -> a_1 -> ... -> a_n -> b -> b_1 -> ... -> b_n -- + * ^ | + * |-------------------------------------------------| + * + * Results in two rings: + * a -> a_1 -> ... -> a_n -- + * ^ | + * |------------------------ + * + * b -> b_1 -> ... -> b_n -- + * ^ | + * |------------------------ + * + * qr_meld() and qr_split() are functionally equivalent, so there's no need to + * have two copies of the code. + */ +#define qr_split(a_qr_a, a_qr_b, a_field) \ + qr_meld((a_qr_a), (a_qr_b), a_field) + +/* + * Splits off a_qr from the rest of its ring, so that it becomes a + * single-element ring. + */ +#define qr_remove(a_qr, a_field) \ + qr_split(qr_next(a_qr, a_field), (a_qr), a_field) + +/* + * Helper macro to iterate over each element in a ring exactly once, starting + * with a_qr. The usage is (assuming my_t defined as above): + * + * int sum(my_t *item) { + * int sum = 0; + * my_t *iter; + * qr_foreach(iter, item, link) { + * sum += iter->data; + * } + * return sum; + * } + */ +#define qr_foreach(var, a_qr, a_field) \ + for ((var) = (a_qr); \ + (var) != NULL; \ + (var) = (((var)->a_field.qre_next != (a_qr)) \ + ? (var)->a_field.qre_next : NULL)) + +/* + * The same (and with the same usage) as qr_foreach, but in the opposite order, + * ending with a_qr. + */ +#define qr_reverse_foreach(var, a_qr, a_field) \ + for ((var) = ((a_qr) != NULL) ? qr_prev(a_qr, a_field) : NULL; \ + (var) != NULL; \ + (var) = (((var) != (a_qr)) \ + ? (var)->a_field.qre_prev : NULL)) + +#endif /* JEMALLOC_INTERNAL_QR_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/quantum.h b/deps/jemalloc/include/jemalloc/internal/quantum.h new file mode 100644 index 0000000..c22d753 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/quantum.h @@ -0,0 +1,87 @@ +#ifndef JEMALLOC_INTERNAL_QUANTUM_H +#define JEMALLOC_INTERNAL_QUANTUM_H + +/* + * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size + * classes). + */ +#ifndef LG_QUANTUM +# if (defined(__i386__) || defined(_M_IX86)) +# define LG_QUANTUM 4 +# endif +# ifdef __ia64__ +# define LG_QUANTUM 4 +# endif +# ifdef __alpha__ +# define LG_QUANTUM 4 +# endif +# if (defined(__sparc64__) || defined(__sparcv9) || defined(__sparc_v9__)) +# define LG_QUANTUM 4 +# endif +# if (defined(__amd64__) || defined(__x86_64__) || defined(_M_X64)) +# define LG_QUANTUM 4 +# endif +# ifdef __arm__ +# define LG_QUANTUM 3 +# endif +# ifdef __aarch64__ +# define LG_QUANTUM 4 +# endif +# ifdef __hppa__ +# define LG_QUANTUM 4 +# endif +# ifdef __loongarch__ +# define LG_QUANTUM 4 +# endif +# ifdef __m68k__ +# define LG_QUANTUM 3 +# endif +# ifdef __mips__ +# if defined(__mips_n32) || defined(__mips_n64) +# define LG_QUANTUM 4 +# else +# define LG_QUANTUM 3 +# endif +# endif +# ifdef __nios2__ +# define LG_QUANTUM 3 +# endif +# ifdef __or1k__ +# define LG_QUANTUM 3 +# endif +# ifdef __powerpc__ +# define LG_QUANTUM 4 +# endif +# if defined(__riscv) || defined(__riscv__) +# define LG_QUANTUM 4 +# endif +# ifdef __s390__ +# define LG_QUANTUM 4 +# endif +# if (defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || \ + defined(__SH4_SINGLE_ONLY__)) +# define LG_QUANTUM 4 +# endif +# ifdef __tile__ +# define LG_QUANTUM 4 +# endif +# ifdef __le32__ +# define LG_QUANTUM 4 +# endif +# ifdef __arc__ +# define LG_QUANTUM 3 +# endif +# ifndef LG_QUANTUM +# error "Unknown minimum alignment for architecture; specify via " + "--with-lg-quantum" +# endif +#endif + +#define QUANTUM ((size_t)(1U << LG_QUANTUM)) +#define QUANTUM_MASK (QUANTUM - 1) + +/* Return the smallest quantum multiple that is >= a. */ +#define QUANTUM_CEILING(a) \ + (((a) + QUANTUM_MASK) & ~QUANTUM_MASK) + +#endif /* JEMALLOC_INTERNAL_QUANTUM_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/rb.h b/deps/jemalloc/include/jemalloc/internal/rb.h new file mode 100644 index 0000000..a9a51cb --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/rb.h @@ -0,0 +1,1856 @@ +#ifndef JEMALLOC_INTERNAL_RB_H +#define JEMALLOC_INTERNAL_RB_H + +/*- + ******************************************************************************* + * + * cpp macro implementation of left-leaning 2-3 red-black trees. Parent + * pointers are not used, and color bits are stored in the least significant + * bit of right-child pointers (if RB_COMPACT is defined), thus making node + * linkage as compact as is possible for red-black trees. + * + * Usage: + * + * #include <stdint.h> + * #include <stdbool.h> + * #define NDEBUG // (Optional, see assert(3).) + * #include <assert.h> + * #define RB_COMPACT // (Optional, embed color bits in right-child pointers.) + * #include <rb.h> + * ... + * + ******************************************************************************* + */ + +#ifndef __PGI +#define RB_COMPACT +#endif + +/* + * Each node in the RB tree consumes at least 1 byte of space (for the linkage + * if nothing else, so there are a maximum of sizeof(void *) << 3 rb tree nodes + * in any process (and thus, at most sizeof(void *) << 3 nodes in any rb tree). + * The choice of algorithm bounds the depth of a tree to twice the binary log of + * the number of elements in the tree; the following bound follows. + */ +#define RB_MAX_DEPTH (sizeof(void *) << 4) + +#ifdef RB_COMPACT +/* Node structure. */ +#define rb_node(a_type) \ +struct { \ + a_type *rbn_left; \ + a_type *rbn_right_red; \ +} +#else +#define rb_node(a_type) \ +struct { \ + a_type *rbn_left; \ + a_type *rbn_right; \ + bool rbn_red; \ +} +#endif + +/* Root structure. */ +#define rb_tree(a_type) \ +struct { \ + a_type *rbt_root; \ +} + +/* Left accessors. */ +#define rbtn_left_get(a_type, a_field, a_node) \ + ((a_node)->a_field.rbn_left) +#define rbtn_left_set(a_type, a_field, a_node, a_left) do { \ + (a_node)->a_field.rbn_left = a_left; \ +} while (0) + +#ifdef RB_COMPACT +/* Right accessors. */ +#define rbtn_right_get(a_type, a_field, a_node) \ + ((a_type *) (((intptr_t) (a_node)->a_field.rbn_right_red) \ + & ((ssize_t)-2))) +#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \ + (a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) a_right) \ + | (((uintptr_t) (a_node)->a_field.rbn_right_red) & ((size_t)1))); \ +} while (0) + +/* Color accessors. */ +#define rbtn_red_get(a_type, a_field, a_node) \ + ((bool) (((uintptr_t) (a_node)->a_field.rbn_right_red) \ + & ((size_t)1))) +#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \ + (a_node)->a_field.rbn_right_red = (a_type *) ((((intptr_t) \ + (a_node)->a_field.rbn_right_red) & ((ssize_t)-2)) \ + | ((ssize_t)a_red)); \ +} while (0) +#define rbtn_red_set(a_type, a_field, a_node) do { \ + (a_node)->a_field.rbn_right_red = (a_type *) (((uintptr_t) \ + (a_node)->a_field.rbn_right_red) | ((size_t)1)); \ +} while (0) +#define rbtn_black_set(a_type, a_field, a_node) do { \ + (a_node)->a_field.rbn_right_red = (a_type *) (((intptr_t) \ + (a_node)->a_field.rbn_right_red) & ((ssize_t)-2)); \ +} while (0) + +/* Node initializer. */ +#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \ + /* Bookkeeping bit cannot be used by node pointer. */ \ + assert(((uintptr_t)(a_node) & 0x1) == 0); \ + rbtn_left_set(a_type, a_field, (a_node), NULL); \ + rbtn_right_set(a_type, a_field, (a_node), NULL); \ + rbtn_red_set(a_type, a_field, (a_node)); \ +} while (0) +#else +/* Right accessors. */ +#define rbtn_right_get(a_type, a_field, a_node) \ + ((a_node)->a_field.rbn_right) +#define rbtn_right_set(a_type, a_field, a_node, a_right) do { \ + (a_node)->a_field.rbn_right = a_right; \ +} while (0) + +/* Color accessors. */ +#define rbtn_red_get(a_type, a_field, a_node) \ + ((a_node)->a_field.rbn_red) +#define rbtn_color_set(a_type, a_field, a_node, a_red) do { \ + (a_node)->a_field.rbn_red = (a_red); \ +} while (0) +#define rbtn_red_set(a_type, a_field, a_node) do { \ + (a_node)->a_field.rbn_red = true; \ +} while (0) +#define rbtn_black_set(a_type, a_field, a_node) do { \ + (a_node)->a_field.rbn_red = false; \ +} while (0) + +/* Node initializer. */ +#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \ + rbtn_left_set(a_type, a_field, (a_node), NULL); \ + rbtn_right_set(a_type, a_field, (a_node), NULL); \ + rbtn_red_set(a_type, a_field, (a_node)); \ +} while (0) +#endif + +/* Tree initializer. */ +#define rb_new(a_type, a_field, a_rbt) do { \ + (a_rbt)->rbt_root = NULL; \ +} while (0) + +/* Internal utility macros. */ +#define rbtn_first(a_type, a_field, a_rbt, a_root, r_node) do { \ + (r_node) = (a_root); \ + if ((r_node) != NULL) { \ + for (; \ + rbtn_left_get(a_type, a_field, (r_node)) != NULL; \ + (r_node) = rbtn_left_get(a_type, a_field, (r_node))) { \ + } \ + } \ +} while (0) + +#define rbtn_last(a_type, a_field, a_rbt, a_root, r_node) do { \ + (r_node) = (a_root); \ + if ((r_node) != NULL) { \ + for (; rbtn_right_get(a_type, a_field, (r_node)) != NULL; \ + (r_node) = rbtn_right_get(a_type, a_field, (r_node))) { \ + } \ + } \ +} while (0) + +#define rbtn_rotate_left(a_type, a_field, a_node, r_node) do { \ + (r_node) = rbtn_right_get(a_type, a_field, (a_node)); \ + rbtn_right_set(a_type, a_field, (a_node), \ + rbtn_left_get(a_type, a_field, (r_node))); \ + rbtn_left_set(a_type, a_field, (r_node), (a_node)); \ +} while (0) + +#define rbtn_rotate_right(a_type, a_field, a_node, r_node) do { \ + (r_node) = rbtn_left_get(a_type, a_field, (a_node)); \ + rbtn_left_set(a_type, a_field, (a_node), \ + rbtn_right_get(a_type, a_field, (r_node))); \ + rbtn_right_set(a_type, a_field, (r_node), (a_node)); \ +} while (0) + +#define rb_summarized_only_false(...) +#define rb_summarized_only_true(...) __VA_ARGS__ +#define rb_empty_summarize(a_node, a_lchild, a_rchild) false + +/* + * The rb_proto() and rb_summarized_proto() macros generate function prototypes + * that correspond to the functions generated by an equivalently parameterized + * call to rb_gen() or rb_summarized_gen(), respectively. + */ + +#define rb_proto(a_attr, a_prefix, a_rbt_type, a_type) \ + rb_proto_impl(a_attr, a_prefix, a_rbt_type, a_type, false) +#define rb_summarized_proto(a_attr, a_prefix, a_rbt_type, a_type) \ + rb_proto_impl(a_attr, a_prefix, a_rbt_type, a_type, true) +#define rb_proto_impl(a_attr, a_prefix, a_rbt_type, a_type, \ + a_is_summarized) \ +a_attr void \ +a_prefix##new(a_rbt_type *rbtree); \ +a_attr bool \ +a_prefix##empty(a_rbt_type *rbtree); \ +a_attr a_type * \ +a_prefix##first(a_rbt_type *rbtree); \ +a_attr a_type * \ +a_prefix##last(a_rbt_type *rbtree); \ +a_attr a_type * \ +a_prefix##next(a_rbt_type *rbtree, a_type *node); \ +a_attr a_type * \ +a_prefix##prev(a_rbt_type *rbtree, a_type *node); \ +a_attr a_type * \ +a_prefix##search(a_rbt_type *rbtree, const a_type *key); \ +a_attr a_type * \ +a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key); \ +a_attr a_type * \ +a_prefix##psearch(a_rbt_type *rbtree, const a_type *key); \ +a_attr void \ +a_prefix##insert(a_rbt_type *rbtree, a_type *node); \ +a_attr void \ +a_prefix##remove(a_rbt_type *rbtree, a_type *node); \ +a_attr a_type * \ +a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \ + a_rbt_type *, a_type *, void *), void *arg); \ +a_attr a_type * \ +a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg); \ +a_attr void \ +a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \ + void *arg); \ +/* Extended API */ \ +rb_summarized_only_##a_is_summarized( \ +a_attr void \ +a_prefix##update_summaries(a_rbt_type *rbtree, a_type *node); \ +a_attr bool \ +a_prefix##empty_filtered(a_rbt_type *rbtree, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##first_filtered(a_rbt_type *rbtree, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##last_filtered(a_rbt_type *rbtree, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##next_filtered(a_rbt_type *rbtree, a_type *node, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##prev_filtered(a_rbt_type *rbtree, a_type *node, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##search_filtered(a_rbt_type *rbtree, const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##nsearch_filtered(a_rbt_type *rbtree, const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##psearch_filtered(a_rbt_type *rbtree, const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##iter_filtered(a_rbt_type *rbtree, a_type *start, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +a_attr a_type * \ +a_prefix##reverse_iter_filtered(a_rbt_type *rbtree, a_type *start, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx); \ +) + +/* + * The rb_gen() macro generates a type-specific red-black tree implementation, + * based on the above cpp macros. + * Arguments: + * + * a_attr: + * Function attribute for generated functions (ex: static). + * a_prefix: + * Prefix for generated functions (ex: ex_). + * a_rb_type: + * Type for red-black tree data structure (ex: ex_t). + * a_type: + * Type for red-black tree node data structure (ex: ex_node_t). + * a_field: + * Name of red-black tree node linkage (ex: ex_link). + * a_cmp: + * Node comparison function name, with the following prototype: + * + * int a_cmp(a_type *a_node, a_type *a_other); + * ^^^^^^ + * or a_key + * Interpretation of comparison function return values: + * -1 : a_node < a_other + * 0 : a_node == a_other + * 1 : a_node > a_other + * In all cases, the a_node or a_key macro argument is the first argument to + * the comparison function, which makes it possible to write comparison + * functions that treat the first argument specially. a_cmp must be a total + * order on values inserted into the tree -- duplicates are not allowed. + * + * Assuming the following setup: + * + * typedef struct ex_node_s ex_node_t; + * struct ex_node_s { + * rb_node(ex_node_t) ex_link; + * }; + * typedef rb_tree(ex_node_t) ex_t; + * rb_gen(static, ex_, ex_t, ex_node_t, ex_link, ex_cmp) + * + * The following API is generated: + * + * static void + * ex_new(ex_t *tree); + * Description: Initialize a red-black tree structure. + * Args: + * tree: Pointer to an uninitialized red-black tree object. + * + * static bool + * ex_empty(ex_t *tree); + * Description: Determine whether tree is empty. + * Args: + * tree: Pointer to an initialized red-black tree object. + * Ret: True if tree is empty, false otherwise. + * + * static ex_node_t * + * ex_first(ex_t *tree); + * static ex_node_t * + * ex_last(ex_t *tree); + * Description: Get the first/last node in tree. + * Args: + * tree: Pointer to an initialized red-black tree object. + * Ret: First/last node in tree, or NULL if tree is empty. + * + * static ex_node_t * + * ex_next(ex_t *tree, ex_node_t *node); + * static ex_node_t * + * ex_prev(ex_t *tree, ex_node_t *node); + * Description: Get node's successor/predecessor. + * Args: + * tree: Pointer to an initialized red-black tree object. + * node: A node in tree. + * Ret: node's successor/predecessor in tree, or NULL if node is + * last/first. + * + * static ex_node_t * + * ex_search(ex_t *tree, const ex_node_t *key); + * Description: Search for node that matches key. + * Args: + * tree: Pointer to an initialized red-black tree object. + * key : Search key. + * Ret: Node in tree that matches key, or NULL if no match. + * + * static ex_node_t * + * ex_nsearch(ex_t *tree, const ex_node_t *key); + * static ex_node_t * + * ex_psearch(ex_t *tree, const ex_node_t *key); + * Description: Search for node that matches key. If no match is found, + * return what would be key's successor/predecessor, were + * key in tree. + * Args: + * tree: Pointer to an initialized red-black tree object. + * key : Search key. + * Ret: Node in tree that matches key, or if no match, hypothetical node's + * successor/predecessor (NULL if no successor/predecessor). + * + * static void + * ex_insert(ex_t *tree, ex_node_t *node); + * Description: Insert node into tree. + * Args: + * tree: Pointer to an initialized red-black tree object. + * node: Node to be inserted into tree. + * + * static void + * ex_remove(ex_t *tree, ex_node_t *node); + * Description: Remove node from tree. + * Args: + * tree: Pointer to an initialized red-black tree object. + * node: Node in tree to be removed. + * + * static ex_node_t * + * ex_iter(ex_t *tree, ex_node_t *start, ex_node_t *(*cb)(ex_t *, + * ex_node_t *, void *), void *arg); + * static ex_node_t * + * ex_reverse_iter(ex_t *tree, ex_node_t *start, ex_node *(*cb)(ex_t *, + * ex_node_t *, void *), void *arg); + * Description: Iterate forward/backward over tree, starting at node. If + * tree is modified, iteration must be immediately + * terminated by the callback function that causes the + * modification. + * Args: + * tree : Pointer to an initialized red-black tree object. + * start: Node at which to start iteration, or NULL to start at + * first/last node. + * cb : Callback function, which is called for each node during + * iteration. Under normal circumstances the callback function + * should return NULL, which causes iteration to continue. If a + * callback function returns non-NULL, iteration is immediately + * terminated and the non-NULL return value is returned by the + * iterator. This is useful for re-starting iteration after + * modifying tree. + * arg : Opaque pointer passed to cb(). + * Ret: NULL if iteration completed, or the non-NULL callback return value + * that caused termination of the iteration. + * + * static void + * ex_destroy(ex_t *tree, void (*cb)(ex_node_t *, void *), void *arg); + * Description: Iterate over the tree with post-order traversal, remove + * each node, and run the callback if non-null. This is + * used for destroying a tree without paying the cost to + * rebalance it. The tree must not be otherwise altered + * during traversal. + * Args: + * tree: Pointer to an initialized red-black tree object. + * cb : Callback function, which, if non-null, is called for each node + * during iteration. There is no way to stop iteration once it + * has begun. + * arg : Opaque pointer passed to cb(). + * + * The rb_summarized_gen() macro generates all the functions above, but has an + * expanded interface. In introduces the notion of summarizing subtrees, and of + * filtering searches in the tree according to the information contained in + * those summaries. + * The extra macro argument is: + * a_summarize: + * Tree summarization function name, with the following prototype: + * + * bool a_summarize(a_type *a_node, const a_type *a_left_child, + * const a_type *a_right_child); + * + * This function should update a_node with the summary of the subtree rooted + * there, using the data contained in it and the summaries in a_left_child + * and a_right_child. One or both of them may be NULL. When the tree + * changes due to an insertion or removal, it updates the summaries of all + * nodes whose subtrees have changed (always updating the summaries of + * children before their parents). If the user alters a node in the tree in + * a way that may change its summary, they can call the generated + * update_summaries function to bubble up the summary changes to the root. + * It should return true if the summary changed (or may have changed), and + * false if it didn't (which will allow the implementation to terminate + * "bubbling up" the summaries early). + * As the parameter names indicate, the children are ordered as they are in + * the tree, a_left_child, if it is not NULL, compares less than a_node, + * which in turn compares less than a_right_child (if a_right_child is not + * NULL). + * + * Using the same setup as above but replacing the macro with + * rb_summarized_gen(static, ex_, ex_t, ex_node_t, ex_link, ex_cmp, + * ex_summarize) + * + * Generates all the previous functions, but adds some more: + * + * static void + * ex_update_summaries(ex_t *tree, ex_node_t *node); + * Description: Recompute all summaries of ancestors of node. + * Args: + * tree: Pointer to an initialized red-black tree object. + * node: The element of the tree whose summary may have changed. + * + * For each of ex_empty, ex_first, ex_last, ex_next, ex_prev, ex_search, + * ex_nsearch, ex_psearch, ex_iter, and ex_reverse_iter, an additional function + * is generated as well, with the suffix _filtered (e.g. ex_empty_filtered, + * ex_first_filtered, etc.). These use the concept of a "filter"; a binary + * property some node either satisfies or does not satisfy. Clever use of the + * a_summary argument to rb_summarized_gen can allow efficient computation of + * these predicates across whole subtrees of the tree. + * The extended API functions accept three additional arguments after the + * arguments to the corresponding non-extended equivalent. + * + * ex_fn(..., bool (*filter_node)(void *, ex_node_t *), + * bool (*filter_subtree)(void *, ex_node_t *), void *filter_ctx); + * filter_node : Returns true if the node passes the filter. + * filter_subtree : Returns true if some node in the subtree rooted at + * node passes the filter. + * filter_ctx : A context argument passed to the filters. + * + * For a more concrete example of summarizing and filtering, suppose we're using + * the red-black tree to track a set of integers: + * + * struct ex_node_s { + * rb_node(ex_node_t) ex_link; + * unsigned data; + * }; + * + * Suppose, for some application-specific reason, we want to be able to quickly + * find numbers in the set which are divisible by large powers of 2 (say, for + * aligned allocation purposes). We augment the node with a summary field: + * + * struct ex_node_s { + * rb_node(ex_node_t) ex_link; + * unsigned data; + * unsigned max_subtree_ffs; + * } + * + * and define our summarization function as follows: + * + * bool + * ex_summarize(ex_node_t *node, const ex_node_t *lchild, + * const ex_node_t *rchild) { + * unsigned new_max_subtree_ffs = ffs(node->data); + * if (lchild != NULL && lchild->max_subtree_ffs > new_max_subtree_ffs) { + * new_max_subtree_ffs = lchild->max_subtree_ffs; + * } + * if (rchild != NULL && rchild->max_subtree_ffs > new_max_subtree_ffs) { + * new_max_subtree_ffs = rchild->max_subtree_ffs; + * } + * bool changed = (node->max_subtree_ffs != new_max_subtree_ffs) + * node->max_subtree_ffs = new_max_subtree_ffs; + * // This could be "return true" without any correctness or big-O + * // performance changes; but practically, precisely reporting summary + * // changes reduces the amount of work that has to be done when "bubbling + * // up" summary changes. + * return changed; + * } + * + * We can now implement our filter functions as follows: + * bool + * ex_filter_node(void *filter_ctx, ex_node_t *node) { + * unsigned required_ffs = *(unsigned *)filter_ctx; + * return ffs(node->data) >= required_ffs; + * } + * bool + * ex_filter_subtree(void *filter_ctx, ex_node_t *node) { + * unsigned required_ffs = *(unsigned *)filter_ctx; + * return node->max_subtree_ffs >= required_ffs; + * } + * + * We can now easily search for, e.g., the smallest integer in the set that's + * divisible by 128: + * ex_node_t * + * find_div_128(ex_tree_t *tree) { + * unsigned min_ffs = 7; + * return ex_first_filtered(tree, &ex_filter_node, &ex_filter_subtree, + * &min_ffs); + * } + * + * We could with similar ease: + * - Fnd the next multiple of 128 in the set that's larger than 12345 (with + * ex_nsearch_filtered) + * - Iterate over just those multiples of 64 that are in the set (with + * ex_iter_filtered) + * - Determine if the set contains any multiples of 1024 (with + * ex_empty_filtered). + * + * Some possibly subtle API notes: + * - The node argument to ex_next_filtered and ex_prev_filtered need not pass + * the filter; it will find the next/prev node that passes the filter. + * - ex_search_filtered will fail even for a node in the tree, if that node does + * not pass the filter. ex_psearch_filtered and ex_nsearch_filtered behave + * similarly; they may return a node larger/smaller than the key, even if a + * node equivalent to the key is in the tree (but does not pass the filter). + * - Similarly, if the start argument to a filtered iteration function does not + * pass the filter, the callback won't be invoked on it. + * + * These should make sense after a moment's reflection; each post-condition is + * the same as with the unfiltered version, with the added constraint that the + * returned node must pass the filter. + */ +#define rb_gen(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp) \ + rb_gen_impl(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp, \ + rb_empty_summarize, false) +#define rb_summarized_gen(a_attr, a_prefix, a_rbt_type, a_type, \ + a_field, a_cmp, a_summarize) \ + rb_gen_impl(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp, \ + a_summarize, true) + +#define rb_gen_impl(a_attr, a_prefix, a_rbt_type, a_type, \ + a_field, a_cmp, a_summarize, a_is_summarized) \ +typedef struct { \ + a_type *node; \ + int cmp; \ +} a_prefix##path_entry_t; \ +static inline void \ +a_prefix##summarize_range(a_prefix##path_entry_t *rfirst, \ + a_prefix##path_entry_t *rlast) { \ + while ((uintptr_t)rlast >= (uintptr_t)rfirst) { \ + a_type *node = rlast->node; \ + /* Avoid a warning when a_summarize is rb_empty_summarize. */ \ + (void)node; \ + bool changed = a_summarize(node, rbtn_left_get(a_type, a_field, \ + node), rbtn_right_get(a_type, a_field, node)); \ + if (!changed) { \ + break; \ + } \ + rlast--; \ + } \ +} \ +/* On the remove pathways, we sometimes swap the node being removed */\ +/* and its first successor; in such cases we need to do two range */\ +/* updates; one from the node to its (former) swapped successor, the */\ +/* next from that successor to the root (with either allowed to */\ +/* bail out early if appropriate. */\ +static inline void \ +a_prefix##summarize_swapped_range(a_prefix##path_entry_t *rfirst, \ + a_prefix##path_entry_t *rlast, a_prefix##path_entry_t *swap_loc) { \ + if (swap_loc == NULL || rlast <= swap_loc) { \ + a_prefix##summarize_range(rfirst, rlast); \ + } else { \ + a_prefix##summarize_range(swap_loc + 1, rlast); \ + (void)a_summarize(swap_loc->node, \ + rbtn_left_get(a_type, a_field, swap_loc->node), \ + rbtn_right_get(a_type, a_field, swap_loc->node)); \ + a_prefix##summarize_range(rfirst, swap_loc - 1); \ + } \ +} \ +a_attr void \ +a_prefix##new(a_rbt_type *rbtree) { \ + rb_new(a_type, a_field, rbtree); \ +} \ +a_attr bool \ +a_prefix##empty(a_rbt_type *rbtree) { \ + return (rbtree->rbt_root == NULL); \ +} \ +a_attr a_type * \ +a_prefix##first(a_rbt_type *rbtree) { \ + a_type *ret; \ + rbtn_first(a_type, a_field, rbtree, rbtree->rbt_root, ret); \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##last(a_rbt_type *rbtree) { \ + a_type *ret; \ + rbtn_last(a_type, a_field, rbtree, rbtree->rbt_root, ret); \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##next(a_rbt_type *rbtree, a_type *node) { \ + a_type *ret; \ + if (rbtn_right_get(a_type, a_field, node) != NULL) { \ + rbtn_first(a_type, a_field, rbtree, rbtn_right_get(a_type, \ + a_field, node), ret); \ + } else { \ + a_type *tnode = rbtree->rbt_root; \ + assert(tnode != NULL); \ + ret = NULL; \ + while (true) { \ + int cmp = (a_cmp)(node, tnode); \ + if (cmp < 0) { \ + ret = tnode; \ + tnode = rbtn_left_get(a_type, a_field, tnode); \ + } else if (cmp > 0) { \ + tnode = rbtn_right_get(a_type, a_field, tnode); \ + } else { \ + break; \ + } \ + assert(tnode != NULL); \ + } \ + } \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##prev(a_rbt_type *rbtree, a_type *node) { \ + a_type *ret; \ + if (rbtn_left_get(a_type, a_field, node) != NULL) { \ + rbtn_last(a_type, a_field, rbtree, rbtn_left_get(a_type, \ + a_field, node), ret); \ + } else { \ + a_type *tnode = rbtree->rbt_root; \ + assert(tnode != NULL); \ + ret = NULL; \ + while (true) { \ + int cmp = (a_cmp)(node, tnode); \ + if (cmp < 0) { \ + tnode = rbtn_left_get(a_type, a_field, tnode); \ + } else if (cmp > 0) { \ + ret = tnode; \ + tnode = rbtn_right_get(a_type, a_field, tnode); \ + } else { \ + break; \ + } \ + assert(tnode != NULL); \ + } \ + } \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##search(a_rbt_type *rbtree, const a_type *key) { \ + a_type *ret; \ + int cmp; \ + ret = rbtree->rbt_root; \ + while (ret != NULL \ + && (cmp = (a_cmp)(key, ret)) != 0) { \ + if (cmp < 0) { \ + ret = rbtn_left_get(a_type, a_field, ret); \ + } else { \ + ret = rbtn_right_get(a_type, a_field, ret); \ + } \ + } \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key) { \ + a_type *ret; \ + a_type *tnode = rbtree->rbt_root; \ + ret = NULL; \ + while (tnode != NULL) { \ + int cmp = (a_cmp)(key, tnode); \ + if (cmp < 0) { \ + ret = tnode; \ + tnode = rbtn_left_get(a_type, a_field, tnode); \ + } else if (cmp > 0) { \ + tnode = rbtn_right_get(a_type, a_field, tnode); \ + } else { \ + ret = tnode; \ + break; \ + } \ + } \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##psearch(a_rbt_type *rbtree, const a_type *key) { \ + a_type *ret; \ + a_type *tnode = rbtree->rbt_root; \ + ret = NULL; \ + while (tnode != NULL) { \ + int cmp = (a_cmp)(key, tnode); \ + if (cmp < 0) { \ + tnode = rbtn_left_get(a_type, a_field, tnode); \ + } else if (cmp > 0) { \ + ret = tnode; \ + tnode = rbtn_right_get(a_type, a_field, tnode); \ + } else { \ + ret = tnode; \ + break; \ + } \ + } \ + return ret; \ +} \ +a_attr void \ +a_prefix##insert(a_rbt_type *rbtree, a_type *node) { \ + a_prefix##path_entry_t path[RB_MAX_DEPTH]; \ + a_prefix##path_entry_t *pathp; \ + rbt_node_new(a_type, a_field, rbtree, node); \ + /* Wind. */ \ + path->node = rbtree->rbt_root; \ + for (pathp = path; pathp->node != NULL; pathp++) { \ + int cmp = pathp->cmp = a_cmp(node, pathp->node); \ + assert(cmp != 0); \ + if (cmp < 0) { \ + pathp[1].node = rbtn_left_get(a_type, a_field, \ + pathp->node); \ + } else { \ + pathp[1].node = rbtn_right_get(a_type, a_field, \ + pathp->node); \ + } \ + } \ + pathp->node = node; \ + /* A loop invariant we maintain is that all nodes with */\ + /* out-of-date summaries live in path[0], path[1], ..., *pathp. */\ + /* To maintain this, we have to summarize node, since we */\ + /* decrement pathp before the first iteration. */\ + assert(rbtn_left_get(a_type, a_field, node) == NULL); \ + assert(rbtn_right_get(a_type, a_field, node) == NULL); \ + (void)a_summarize(node, NULL, NULL); \ + /* Unwind. */ \ + for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \ + a_type *cnode = pathp->node; \ + if (pathp->cmp < 0) { \ + a_type *left = pathp[1].node; \ + rbtn_left_set(a_type, a_field, cnode, left); \ + if (rbtn_red_get(a_type, a_field, left)) { \ + a_type *leftleft = rbtn_left_get(a_type, a_field, left);\ + if (leftleft != NULL && rbtn_red_get(a_type, a_field, \ + leftleft)) { \ + /* Fix up 4-node. */ \ + a_type *tnode; \ + rbtn_black_set(a_type, a_field, leftleft); \ + rbtn_rotate_right(a_type, a_field, cnode, tnode); \ + (void)a_summarize(cnode, \ + rbtn_left_get(a_type, a_field, cnode), \ + rbtn_right_get(a_type, a_field, cnode)); \ + cnode = tnode; \ + } \ + } else { \ + a_prefix##summarize_range(path, pathp); \ + return; \ + } \ + } else { \ + a_type *right = pathp[1].node; \ + rbtn_right_set(a_type, a_field, cnode, right); \ + if (rbtn_red_get(a_type, a_field, right)) { \ + a_type *left = rbtn_left_get(a_type, a_field, cnode); \ + if (left != NULL && rbtn_red_get(a_type, a_field, \ + left)) { \ + /* Split 4-node. */ \ + rbtn_black_set(a_type, a_field, left); \ + rbtn_black_set(a_type, a_field, right); \ + rbtn_red_set(a_type, a_field, cnode); \ + } else { \ + /* Lean left. */ \ + a_type *tnode; \ + bool tred = rbtn_red_get(a_type, a_field, cnode); \ + rbtn_rotate_left(a_type, a_field, cnode, tnode); \ + rbtn_color_set(a_type, a_field, tnode, tred); \ + rbtn_red_set(a_type, a_field, cnode); \ + (void)a_summarize(cnode, \ + rbtn_left_get(a_type, a_field, cnode), \ + rbtn_right_get(a_type, a_field, cnode)); \ + cnode = tnode; \ + } \ + } else { \ + a_prefix##summarize_range(path, pathp); \ + return; \ + } \ + } \ + pathp->node = cnode; \ + (void)a_summarize(cnode, \ + rbtn_left_get(a_type, a_field, cnode), \ + rbtn_right_get(a_type, a_field, cnode)); \ + } \ + /* Set root, and make it black. */ \ + rbtree->rbt_root = path->node; \ + rbtn_black_set(a_type, a_field, rbtree->rbt_root); \ +} \ +a_attr void \ +a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \ + a_prefix##path_entry_t path[RB_MAX_DEPTH]; \ + a_prefix##path_entry_t *pathp; \ + a_prefix##path_entry_t *nodep; \ + a_prefix##path_entry_t *swap_loc; \ + /* This is a "real" sentinel -- NULL means we didn't swap the */\ + /* node to be pruned with one of its successors, and so */\ + /* summarization can terminate early whenever some summary */\ + /* doesn't change. */\ + swap_loc = NULL; \ + /* This is just to silence a compiler warning. */ \ + nodep = NULL; \ + /* Wind. */ \ + path->node = rbtree->rbt_root; \ + for (pathp = path; pathp->node != NULL; pathp++) { \ + int cmp = pathp->cmp = a_cmp(node, pathp->node); \ + if (cmp < 0) { \ + pathp[1].node = rbtn_left_get(a_type, a_field, \ + pathp->node); \ + } else { \ + pathp[1].node = rbtn_right_get(a_type, a_field, \ + pathp->node); \ + if (cmp == 0) { \ + /* Find node's successor, in preparation for swap. */ \ + pathp->cmp = 1; \ + nodep = pathp; \ + for (pathp++; pathp->node != NULL; pathp++) { \ + pathp->cmp = -1; \ + pathp[1].node = rbtn_left_get(a_type, a_field, \ + pathp->node); \ + } \ + break; \ + } \ + } \ + } \ + assert(nodep->node == node); \ + pathp--; \ + if (pathp->node != node) { \ + /* Swap node with its successor. */ \ + swap_loc = nodep; \ + bool tred = rbtn_red_get(a_type, a_field, pathp->node); \ + rbtn_color_set(a_type, a_field, pathp->node, \ + rbtn_red_get(a_type, a_field, node)); \ + rbtn_left_set(a_type, a_field, pathp->node, \ + rbtn_left_get(a_type, a_field, node)); \ + /* If node's successor is its right child, the following code */\ + /* will do the wrong thing for the right child pointer. */\ + /* However, it doesn't matter, because the pointer will be */\ + /* properly set when the successor is pruned. */\ + rbtn_right_set(a_type, a_field, pathp->node, \ + rbtn_right_get(a_type, a_field, node)); \ + rbtn_color_set(a_type, a_field, node, tred); \ + /* The pruned leaf node's child pointers are never accessed */\ + /* again, so don't bother setting them to nil. */\ + nodep->node = pathp->node; \ + pathp->node = node; \ + if (nodep == path) { \ + rbtree->rbt_root = nodep->node; \ + } else { \ + if (nodep[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, nodep[-1].node, \ + nodep->node); \ + } else { \ + rbtn_right_set(a_type, a_field, nodep[-1].node, \ + nodep->node); \ + } \ + } \ + } else { \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + if (left != NULL) { \ + /* node has no successor, but it has a left child. */\ + /* Splice node out, without losing the left child. */\ + assert(!rbtn_red_get(a_type, a_field, node)); \ + assert(rbtn_red_get(a_type, a_field, left)); \ + rbtn_black_set(a_type, a_field, left); \ + if (pathp == path) { \ + rbtree->rbt_root = left; \ + /* Nothing to summarize -- the subtree rooted at the */\ + /* node's left child hasn't changed, and it's now the */\ + /* root. */\ + } else { \ + if (pathp[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, pathp[-1].node, \ + left); \ + } else { \ + rbtn_right_set(a_type, a_field, pathp[-1].node, \ + left); \ + } \ + a_prefix##summarize_swapped_range(path, &pathp[-1], \ + swap_loc); \ + } \ + return; \ + } else if (pathp == path) { \ + /* The tree only contained one node. */ \ + rbtree->rbt_root = NULL; \ + return; \ + } \ + } \ + /* We've now established the invariant that the node has no right */\ + /* child (well, morally; we didn't bother nulling it out if we */\ + /* swapped it with its successor), and that the only nodes with */\ + /* out-of-date summaries live in path[0], path[1], ..., pathp[-1].*/\ + if (rbtn_red_get(a_type, a_field, pathp->node)) { \ + /* Prune red node, which requires no fixup. */ \ + assert(pathp[-1].cmp < 0); \ + rbtn_left_set(a_type, a_field, pathp[-1].node, NULL); \ + a_prefix##summarize_swapped_range(path, &pathp[-1], swap_loc); \ + return; \ + } \ + /* The node to be pruned is black, so unwind until balance is */\ + /* restored. */\ + pathp->node = NULL; \ + for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \ + assert(pathp->cmp != 0); \ + if (pathp->cmp < 0) { \ + rbtn_left_set(a_type, a_field, pathp->node, \ + pathp[1].node); \ + if (rbtn_red_get(a_type, a_field, pathp->node)) { \ + a_type *right = rbtn_right_get(a_type, a_field, \ + pathp->node); \ + a_type *rightleft = rbtn_left_get(a_type, a_field, \ + right); \ + a_type *tnode; \ + if (rightleft != NULL && rbtn_red_get(a_type, a_field, \ + rightleft)) { \ + /* In the following diagrams, ||, //, and \\ */\ + /* indicate the path to the removed node. */\ + /* */\ + /* || */\ + /* pathp(r) */\ + /* // \ */\ + /* (b) (b) */\ + /* / */\ + /* (r) */\ + /* */\ + rbtn_black_set(a_type, a_field, pathp->node); \ + rbtn_rotate_right(a_type, a_field, right, tnode); \ + rbtn_right_set(a_type, a_field, pathp->node, tnode);\ + rbtn_rotate_left(a_type, a_field, pathp->node, \ + tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + (void)a_summarize(right, \ + rbtn_left_get(a_type, a_field, right), \ + rbtn_right_get(a_type, a_field, right)); \ + } else { \ + /* || */\ + /* pathp(r) */\ + /* // \ */\ + /* (b) (b) */\ + /* / */\ + /* (b) */\ + /* */\ + rbtn_rotate_left(a_type, a_field, pathp->node, \ + tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + } \ + (void)a_summarize(tnode, rbtn_left_get(a_type, a_field, \ + tnode), rbtn_right_get(a_type, a_field, tnode)); \ + /* Balance restored, but rotation modified subtree */\ + /* root. */\ + assert((uintptr_t)pathp > (uintptr_t)path); \ + if (pathp[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, pathp[-1].node, \ + tnode); \ + } else { \ + rbtn_right_set(a_type, a_field, pathp[-1].node, \ + tnode); \ + } \ + a_prefix##summarize_swapped_range(path, &pathp[-1], \ + swap_loc); \ + return; \ + } else { \ + a_type *right = rbtn_right_get(a_type, a_field, \ + pathp->node); \ + a_type *rightleft = rbtn_left_get(a_type, a_field, \ + right); \ + if (rightleft != NULL && rbtn_red_get(a_type, a_field, \ + rightleft)) { \ + /* || */\ + /* pathp(b) */\ + /* // \ */\ + /* (b) (b) */\ + /* / */\ + /* (r) */\ + a_type *tnode; \ + rbtn_black_set(a_type, a_field, rightleft); \ + rbtn_rotate_right(a_type, a_field, right, tnode); \ + rbtn_right_set(a_type, a_field, pathp->node, tnode);\ + rbtn_rotate_left(a_type, a_field, pathp->node, \ + tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + (void)a_summarize(right, \ + rbtn_left_get(a_type, a_field, right), \ + rbtn_right_get(a_type, a_field, right)); \ + (void)a_summarize(tnode, \ + rbtn_left_get(a_type, a_field, tnode), \ + rbtn_right_get(a_type, a_field, tnode)); \ + /* Balance restored, but rotation modified */\ + /* subtree root, which may actually be the tree */\ + /* root. */\ + if (pathp == path) { \ + /* Set root. */ \ + rbtree->rbt_root = tnode; \ + } else { \ + if (pathp[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, \ + pathp[-1].node, tnode); \ + } else { \ + rbtn_right_set(a_type, a_field, \ + pathp[-1].node, tnode); \ + } \ + a_prefix##summarize_swapped_range(path, \ + &pathp[-1], swap_loc); \ + } \ + return; \ + } else { \ + /* || */\ + /* pathp(b) */\ + /* // \ */\ + /* (b) (b) */\ + /* / */\ + /* (b) */\ + a_type *tnode; \ + rbtn_red_set(a_type, a_field, pathp->node); \ + rbtn_rotate_left(a_type, a_field, pathp->node, \ + tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + (void)a_summarize(tnode, \ + rbtn_left_get(a_type, a_field, tnode), \ + rbtn_right_get(a_type, a_field, tnode)); \ + pathp->node = tnode; \ + } \ + } \ + } else { \ + a_type *left; \ + rbtn_right_set(a_type, a_field, pathp->node, \ + pathp[1].node); \ + left = rbtn_left_get(a_type, a_field, pathp->node); \ + if (rbtn_red_get(a_type, a_field, left)) { \ + a_type *tnode; \ + a_type *leftright = rbtn_right_get(a_type, a_field, \ + left); \ + a_type *leftrightleft = rbtn_left_get(a_type, a_field, \ + leftright); \ + if (leftrightleft != NULL && rbtn_red_get(a_type, \ + a_field, leftrightleft)) { \ + /* || */\ + /* pathp(b) */\ + /* / \\ */\ + /* (r) (b) */\ + /* \ */\ + /* (b) */\ + /* / */\ + /* (r) */\ + a_type *unode; \ + rbtn_black_set(a_type, a_field, leftrightleft); \ + rbtn_rotate_right(a_type, a_field, pathp->node, \ + unode); \ + rbtn_rotate_right(a_type, a_field, pathp->node, \ + tnode); \ + rbtn_right_set(a_type, a_field, unode, tnode); \ + rbtn_rotate_left(a_type, a_field, unode, tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + (void)a_summarize(unode, \ + rbtn_left_get(a_type, a_field, unode), \ + rbtn_right_get(a_type, a_field, unode)); \ + } else { \ + /* || */\ + /* pathp(b) */\ + /* / \\ */\ + /* (r) (b) */\ + /* \ */\ + /* (b) */\ + /* / */\ + /* (b) */\ + assert(leftright != NULL); \ + rbtn_red_set(a_type, a_field, leftright); \ + rbtn_rotate_right(a_type, a_field, pathp->node, \ + tnode); \ + rbtn_black_set(a_type, a_field, tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + } \ + (void)a_summarize(tnode, \ + rbtn_left_get(a_type, a_field, tnode), \ + rbtn_right_get(a_type, a_field, tnode)); \ + /* Balance restored, but rotation modified subtree */\ + /* root, which may actually be the tree root. */\ + if (pathp == path) { \ + /* Set root. */ \ + rbtree->rbt_root = tnode; \ + } else { \ + if (pathp[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, pathp[-1].node, \ + tnode); \ + } else { \ + rbtn_right_set(a_type, a_field, pathp[-1].node, \ + tnode); \ + } \ + a_prefix##summarize_swapped_range(path, &pathp[-1], \ + swap_loc); \ + } \ + return; \ + } else if (rbtn_red_get(a_type, a_field, pathp->node)) { \ + a_type *leftleft = rbtn_left_get(a_type, a_field, left);\ + if (leftleft != NULL && rbtn_red_get(a_type, a_field, \ + leftleft)) { \ + /* || */\ + /* pathp(r) */\ + /* / \\ */\ + /* (b) (b) */\ + /* / */\ + /* (r) */\ + a_type *tnode; \ + rbtn_black_set(a_type, a_field, pathp->node); \ + rbtn_red_set(a_type, a_field, left); \ + rbtn_black_set(a_type, a_field, leftleft); \ + rbtn_rotate_right(a_type, a_field, pathp->node, \ + tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + (void)a_summarize(tnode, \ + rbtn_left_get(a_type, a_field, tnode), \ + rbtn_right_get(a_type, a_field, tnode)); \ + /* Balance restored, but rotation modified */\ + /* subtree root. */\ + assert((uintptr_t)pathp > (uintptr_t)path); \ + if (pathp[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, pathp[-1].node, \ + tnode); \ + } else { \ + rbtn_right_set(a_type, a_field, pathp[-1].node, \ + tnode); \ + } \ + a_prefix##summarize_swapped_range(path, &pathp[-1], \ + swap_loc); \ + return; \ + } else { \ + /* || */\ + /* pathp(r) */\ + /* / \\ */\ + /* (b) (b) */\ + /* / */\ + /* (b) */\ + rbtn_red_set(a_type, a_field, left); \ + rbtn_black_set(a_type, a_field, pathp->node); \ + /* Balance restored. */ \ + a_prefix##summarize_swapped_range(path, pathp, \ + swap_loc); \ + return; \ + } \ + } else { \ + a_type *leftleft = rbtn_left_get(a_type, a_field, left);\ + if (leftleft != NULL && rbtn_red_get(a_type, a_field, \ + leftleft)) { \ + /* || */\ + /* pathp(b) */\ + /* / \\ */\ + /* (b) (b) */\ + /* / */\ + /* (r) */\ + a_type *tnode; \ + rbtn_black_set(a_type, a_field, leftleft); \ + rbtn_rotate_right(a_type, a_field, pathp->node, \ + tnode); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + (void)a_summarize(tnode, \ + rbtn_left_get(a_type, a_field, tnode), \ + rbtn_right_get(a_type, a_field, tnode)); \ + /* Balance restored, but rotation modified */\ + /* subtree root, which may actually be the tree */\ + /* root. */\ + if (pathp == path) { \ + /* Set root. */ \ + rbtree->rbt_root = tnode; \ + } else { \ + if (pathp[-1].cmp < 0) { \ + rbtn_left_set(a_type, a_field, \ + pathp[-1].node, tnode); \ + } else { \ + rbtn_right_set(a_type, a_field, \ + pathp[-1].node, tnode); \ + } \ + a_prefix##summarize_swapped_range(path, \ + &pathp[-1], swap_loc); \ + } \ + return; \ + } else { \ + /* || */\ + /* pathp(b) */\ + /* / \\ */\ + /* (b) (b) */\ + /* / */\ + /* (b) */\ + rbtn_red_set(a_type, a_field, left); \ + (void)a_summarize(pathp->node, \ + rbtn_left_get(a_type, a_field, pathp->node), \ + rbtn_right_get(a_type, a_field, pathp->node)); \ + } \ + } \ + } \ + } \ + /* Set root. */ \ + rbtree->rbt_root = path->node; \ + assert(!rbtn_red_get(a_type, a_field, rbtree->rbt_root)); \ +} \ +a_attr a_type * \ +a_prefix##iter_recurse(a_rbt_type *rbtree, a_type *node, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ + if (node == NULL) { \ + return NULL; \ + } else { \ + a_type *ret; \ + if ((ret = a_prefix##iter_recurse(rbtree, rbtn_left_get(a_type, \ + a_field, node), cb, arg)) != NULL || (ret = cb(rbtree, node, \ + arg)) != NULL) { \ + return ret; \ + } \ + return a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \ + a_field, node), cb, arg); \ + } \ +} \ +a_attr a_type * \ +a_prefix##iter_start(a_rbt_type *rbtree, a_type *start, a_type *node, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ + int cmp = a_cmp(start, node); \ + if (cmp < 0) { \ + a_type *ret; \ + if ((ret = a_prefix##iter_start(rbtree, start, \ + rbtn_left_get(a_type, a_field, node), cb, arg)) != NULL || \ + (ret = cb(rbtree, node, arg)) != NULL) { \ + return ret; \ + } \ + return a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \ + a_field, node), cb, arg); \ + } else if (cmp > 0) { \ + return a_prefix##iter_start(rbtree, start, \ + rbtn_right_get(a_type, a_field, node), cb, arg); \ + } else { \ + a_type *ret; \ + if ((ret = cb(rbtree, node, arg)) != NULL) { \ + return ret; \ + } \ + return a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \ + a_field, node), cb, arg); \ + } \ +} \ +a_attr a_type * \ +a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \ + a_rbt_type *, a_type *, void *), void *arg) { \ + a_type *ret; \ + if (start != NULL) { \ + ret = a_prefix##iter_start(rbtree, start, rbtree->rbt_root, \ + cb, arg); \ + } else { \ + ret = a_prefix##iter_recurse(rbtree, rbtree->rbt_root, cb, arg);\ + } \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##reverse_iter_recurse(a_rbt_type *rbtree, a_type *node, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ + if (node == NULL) { \ + return NULL; \ + } else { \ + a_type *ret; \ + if ((ret = a_prefix##reverse_iter_recurse(rbtree, \ + rbtn_right_get(a_type, a_field, node), cb, arg)) != NULL || \ + (ret = cb(rbtree, node, arg)) != NULL) { \ + return ret; \ + } \ + return a_prefix##reverse_iter_recurse(rbtree, \ + rbtn_left_get(a_type, a_field, node), cb, arg); \ + } \ +} \ +a_attr a_type * \ +a_prefix##reverse_iter_start(a_rbt_type *rbtree, a_type *start, \ + a_type *node, a_type *(*cb)(a_rbt_type *, a_type *, void *), \ + void *arg) { \ + int cmp = a_cmp(start, node); \ + if (cmp > 0) { \ + a_type *ret; \ + if ((ret = a_prefix##reverse_iter_start(rbtree, start, \ + rbtn_right_get(a_type, a_field, node), cb, arg)) != NULL || \ + (ret = cb(rbtree, node, arg)) != NULL) { \ + return ret; \ + } \ + return a_prefix##reverse_iter_recurse(rbtree, \ + rbtn_left_get(a_type, a_field, node), cb, arg); \ + } else if (cmp < 0) { \ + return a_prefix##reverse_iter_start(rbtree, start, \ + rbtn_left_get(a_type, a_field, node), cb, arg); \ + } else { \ + a_type *ret; \ + if ((ret = cb(rbtree, node, arg)) != NULL) { \ + return ret; \ + } \ + return a_prefix##reverse_iter_recurse(rbtree, \ + rbtn_left_get(a_type, a_field, node), cb, arg); \ + } \ +} \ +a_attr a_type * \ +a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \ + a_type *ret; \ + if (start != NULL) { \ + ret = a_prefix##reverse_iter_start(rbtree, start, \ + rbtree->rbt_root, cb, arg); \ + } else { \ + ret = a_prefix##reverse_iter_recurse(rbtree, rbtree->rbt_root, \ + cb, arg); \ + } \ + return ret; \ +} \ +a_attr void \ +a_prefix##destroy_recurse(a_rbt_type *rbtree, a_type *node, void (*cb)( \ + a_type *, void *), void *arg) { \ + if (node == NULL) { \ + return; \ + } \ + a_prefix##destroy_recurse(rbtree, rbtn_left_get(a_type, a_field, \ + node), cb, arg); \ + rbtn_left_set(a_type, a_field, (node), NULL); \ + a_prefix##destroy_recurse(rbtree, rbtn_right_get(a_type, a_field, \ + node), cb, arg); \ + rbtn_right_set(a_type, a_field, (node), NULL); \ + if (cb) { \ + cb(node, arg); \ + } \ +} \ +a_attr void \ +a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \ + void *arg) { \ + a_prefix##destroy_recurse(rbtree, rbtree->rbt_root, cb, arg); \ + rbtree->rbt_root = NULL; \ +} \ +/* BEGIN SUMMARIZED-ONLY IMPLEMENTATION */ \ +rb_summarized_only_##a_is_summarized( \ +static inline a_prefix##path_entry_t * \ +a_prefix##wind(a_rbt_type *rbtree, \ + a_prefix##path_entry_t path[RB_MAX_DEPTH], a_type *node) { \ + a_prefix##path_entry_t *pathp; \ + path->node = rbtree->rbt_root; \ + for (pathp = path; ; pathp++) { \ + assert((size_t)(pathp - path) < RB_MAX_DEPTH); \ + pathp->cmp = a_cmp(node, pathp->node); \ + if (pathp->cmp < 0) { \ + pathp[1].node = rbtn_left_get(a_type, a_field, \ + pathp->node); \ + } else if (pathp->cmp == 0) { \ + return pathp; \ + } else { \ + pathp[1].node = rbtn_right_get(a_type, a_field, \ + pathp->node); \ + } \ + } \ + unreachable(); \ +} \ +a_attr void \ +a_prefix##update_summaries(a_rbt_type *rbtree, a_type *node) { \ + a_prefix##path_entry_t path[RB_MAX_DEPTH]; \ + a_prefix##path_entry_t *pathp = a_prefix##wind(rbtree, path, node); \ + a_prefix##summarize_range(path, pathp); \ +} \ +a_attr bool \ +a_prefix##empty_filtered(a_rbt_type *rbtree, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *node = rbtree->rbt_root; \ + return node == NULL || !filter_subtree(filter_ctx, node); \ +} \ +static inline a_type * \ +a_prefix##first_filtered_from_node(a_type *node, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + assert(node != NULL && filter_subtree(filter_ctx, node)); \ + while (true) { \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + a_type *right = rbtn_right_get(a_type, a_field, node); \ + if (left != NULL && filter_subtree(filter_ctx, left)) { \ + node = left; \ + } else if (filter_node(filter_ctx, node)) { \ + return node; \ + } else { \ + assert(right != NULL \ + && filter_subtree(filter_ctx, right)); \ + node = right; \ + } \ + } \ + unreachable(); \ +} \ +a_attr a_type * \ +a_prefix##first_filtered(a_rbt_type *rbtree, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *node = rbtree->rbt_root; \ + if (node == NULL || !filter_subtree(filter_ctx, node)) { \ + return NULL; \ + } \ + return a_prefix##first_filtered_from_node(node, filter_node, \ + filter_subtree, filter_ctx); \ +} \ +static inline a_type * \ +a_prefix##last_filtered_from_node(a_type *node, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + assert(node != NULL && filter_subtree(filter_ctx, node)); \ + while (true) { \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + a_type *right = rbtn_right_get(a_type, a_field, node); \ + if (right != NULL && filter_subtree(filter_ctx, right)) { \ + node = right; \ + } else if (filter_node(filter_ctx, node)) { \ + return node; \ + } else { \ + assert(left != NULL \ + && filter_subtree(filter_ctx, left)); \ + node = left; \ + } \ + } \ + unreachable(); \ +} \ +a_attr a_type * \ +a_prefix##last_filtered(a_rbt_type *rbtree, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *node = rbtree->rbt_root; \ + if (node == NULL || !filter_subtree(filter_ctx, node)) { \ + return NULL; \ + } \ + return a_prefix##last_filtered_from_node(node, filter_node, \ + filter_subtree, filter_ctx); \ +} \ +/* Internal implementation function. Search for a node comparing */\ +/* equal to key matching the filter. If such a node is in the tree, */\ +/* return it. Additionally, the caller has the option to ask for */\ +/* bounds on the next / prev node in the tree passing the filter. */\ +/* If nextbound is true, then this function will do one of the */\ +/* following: */\ +/* - Fill in *nextbound_node with the smallest node in the tree */\ +/* greater than key passing the filter, and NULL-out */\ +/* *nextbound_subtree. */\ +/* - Fill in *nextbound_subtree with a parent of that node which is */\ +/* not a parent of the searched-for node, and NULL-out */\ +/* *nextbound_node. */\ +/* - NULL-out both *nextbound_node and *nextbound_subtree, in which */\ +/* case no node greater than key but passing the filter is in the */\ +/* tree. */\ +/* The prevbound case is similar. If the caller knows that key is in */\ +/* the tree and that the subtree rooted at key does not contain a */\ +/* node satisfying the bound being searched for, then they can pass */\ +/* false for include_subtree, in which case we won't bother searching */\ +/* there (risking a cache miss). */\ +/* */\ +/* This API is unfortunately complex; but the logic for filtered */\ +/* searches is very subtle, and otherwise we would have to repeat it */\ +/* multiple times for filtered search, nsearch, psearch, next, and */\ +/* prev. */\ +static inline a_type * \ +a_prefix##search_with_filter_bounds(a_rbt_type *rbtree, \ + const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx, \ + bool include_subtree, \ + bool nextbound, a_type **nextbound_node, a_type **nextbound_subtree, \ + bool prevbound, a_type **prevbound_node, a_type **prevbound_subtree) {\ + if (nextbound) { \ + *nextbound_node = NULL; \ + *nextbound_subtree = NULL; \ + } \ + if (prevbound) { \ + *prevbound_node = NULL; \ + *prevbound_subtree = NULL; \ + } \ + a_type *tnode = rbtree->rbt_root; \ + while (tnode != NULL && filter_subtree(filter_ctx, tnode)) { \ + int cmp = a_cmp(key, tnode); \ + a_type *tleft = rbtn_left_get(a_type, a_field, tnode); \ + a_type *tright = rbtn_right_get(a_type, a_field, tnode); \ + if (cmp < 0) { \ + if (nextbound) { \ + if (filter_node(filter_ctx, tnode)) { \ + *nextbound_node = tnode; \ + *nextbound_subtree = NULL; \ + } else if (tright != NULL && filter_subtree( \ + filter_ctx, tright)) { \ + *nextbound_node = NULL; \ + *nextbound_subtree = tright; \ + } \ + } \ + tnode = tleft; \ + } else if (cmp > 0) { \ + if (prevbound) { \ + if (filter_node(filter_ctx, tnode)) { \ + *prevbound_node = tnode; \ + *prevbound_subtree = NULL; \ + } else if (tleft != NULL && filter_subtree( \ + filter_ctx, tleft)) { \ + *prevbound_node = NULL; \ + *prevbound_subtree = tleft; \ + } \ + } \ + tnode = tright; \ + } else { \ + if (filter_node(filter_ctx, tnode)) { \ + return tnode; \ + } \ + if (include_subtree) { \ + if (prevbound && tleft != NULL && filter_subtree( \ + filter_ctx, tleft)) { \ + *prevbound_node = NULL; \ + *prevbound_subtree = tleft; \ + } \ + if (nextbound && tright != NULL && filter_subtree( \ + filter_ctx, tright)) { \ + *nextbound_node = NULL; \ + *nextbound_subtree = tright; \ + } \ + } \ + return NULL; \ + } \ + } \ + return NULL; \ +} \ +a_attr a_type * \ +a_prefix##next_filtered(a_rbt_type *rbtree, a_type *node, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *nright = rbtn_right_get(a_type, a_field, node); \ + if (nright != NULL && filter_subtree(filter_ctx, nright)) { \ + return a_prefix##first_filtered_from_node(nright, filter_node, \ + filter_subtree, filter_ctx); \ + } \ + a_type *node_candidate; \ + a_type *subtree_candidate; \ + a_type *search_result = a_prefix##search_with_filter_bounds( \ + rbtree, node, filter_node, filter_subtree, filter_ctx, \ + /* include_subtree */ false, \ + /* nextbound */ true, &node_candidate, &subtree_candidate, \ + /* prevbound */ false, NULL, NULL); \ + assert(node == search_result \ + || !filter_node(filter_ctx, node)); \ + if (node_candidate != NULL) { \ + return node_candidate; \ + } \ + if (subtree_candidate != NULL) { \ + return a_prefix##first_filtered_from_node( \ + subtree_candidate, filter_node, filter_subtree, \ + filter_ctx); \ + } \ + return NULL; \ +} \ +a_attr a_type * \ +a_prefix##prev_filtered(a_rbt_type *rbtree, a_type *node, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *nleft = rbtn_left_get(a_type, a_field, node); \ + if (nleft != NULL && filter_subtree(filter_ctx, nleft)) { \ + return a_prefix##last_filtered_from_node(nleft, filter_node, \ + filter_subtree, filter_ctx); \ + } \ + a_type *node_candidate; \ + a_type *subtree_candidate; \ + a_type *search_result = a_prefix##search_with_filter_bounds( \ + rbtree, node, filter_node, filter_subtree, filter_ctx, \ + /* include_subtree */ false, \ + /* nextbound */ false, NULL, NULL, \ + /* prevbound */ true, &node_candidate, &subtree_candidate); \ + assert(node == search_result \ + || !filter_node(filter_ctx, node)); \ + if (node_candidate != NULL) { \ + return node_candidate; \ + } \ + if (subtree_candidate != NULL) { \ + return a_prefix##last_filtered_from_node( \ + subtree_candidate, filter_node, filter_subtree, \ + filter_ctx); \ + } \ + return NULL; \ +} \ +a_attr a_type * \ +a_prefix##search_filtered(a_rbt_type *rbtree, const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *result = a_prefix##search_with_filter_bounds(rbtree, key, \ + filter_node, filter_subtree, filter_ctx, \ + /* include_subtree */ false, \ + /* nextbound */ false, NULL, NULL, \ + /* prevbound */ false, NULL, NULL); \ + return result; \ +} \ +a_attr a_type * \ +a_prefix##nsearch_filtered(a_rbt_type *rbtree, const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *node_candidate; \ + a_type *subtree_candidate; \ + a_type *result = a_prefix##search_with_filter_bounds(rbtree, key, \ + filter_node, filter_subtree, filter_ctx, \ + /* include_subtree */ true, \ + /* nextbound */ true, &node_candidate, &subtree_candidate, \ + /* prevbound */ false, NULL, NULL); \ + if (result != NULL) { \ + return result; \ + } \ + if (node_candidate != NULL) { \ + return node_candidate; \ + } \ + if (subtree_candidate != NULL) { \ + return a_prefix##first_filtered_from_node( \ + subtree_candidate, filter_node, filter_subtree, \ + filter_ctx); \ + } \ + return NULL; \ +} \ +a_attr a_type * \ +a_prefix##psearch_filtered(a_rbt_type *rbtree, const a_type *key, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *node_candidate; \ + a_type *subtree_candidate; \ + a_type *result = a_prefix##search_with_filter_bounds(rbtree, key, \ + filter_node, filter_subtree, filter_ctx, \ + /* include_subtree */ true, \ + /* nextbound */ false, NULL, NULL, \ + /* prevbound */ true, &node_candidate, &subtree_candidate); \ + if (result != NULL) { \ + return result; \ + } \ + if (node_candidate != NULL) { \ + return node_candidate; \ + } \ + if (subtree_candidate != NULL) { \ + return a_prefix##last_filtered_from_node( \ + subtree_candidate, filter_node, filter_subtree, \ + filter_ctx); \ + } \ + return NULL; \ +} \ +a_attr a_type * \ +a_prefix##iter_recurse_filtered(a_rbt_type *rbtree, a_type *node, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + if (node == NULL || !filter_subtree(filter_ctx, node)) { \ + return NULL; \ + } \ + a_type *ret; \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + a_type *right = rbtn_right_get(a_type, a_field, node); \ + ret = a_prefix##iter_recurse_filtered(rbtree, left, cb, arg, \ + filter_node, filter_subtree, filter_ctx); \ + if (ret != NULL) { \ + return ret; \ + } \ + if (filter_node(filter_ctx, node)) { \ + ret = cb(rbtree, node, arg); \ + } \ + if (ret != NULL) { \ + return ret; \ + } \ + return a_prefix##iter_recurse_filtered(rbtree, right, cb, arg, \ + filter_node, filter_subtree, filter_ctx); \ +} \ +a_attr a_type * \ +a_prefix##iter_start_filtered(a_rbt_type *rbtree, a_type *start, \ + a_type *node, a_type *(*cb)(a_rbt_type *, a_type *, void *), \ + void *arg, bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + if (!filter_subtree(filter_ctx, node)) { \ + return NULL; \ + } \ + int cmp = a_cmp(start, node); \ + a_type *ret; \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + a_type *right = rbtn_right_get(a_type, a_field, node); \ + if (cmp < 0) { \ + ret = a_prefix##iter_start_filtered(rbtree, start, left, cb, \ + arg, filter_node, filter_subtree, filter_ctx); \ + if (ret != NULL) { \ + return ret; \ + } \ + if (filter_node(filter_ctx, node)) { \ + ret = cb(rbtree, node, arg); \ + if (ret != NULL) { \ + return ret; \ + } \ + } \ + return a_prefix##iter_recurse_filtered(rbtree, right, cb, arg, \ + filter_node, filter_subtree, filter_ctx); \ + } else if (cmp > 0) { \ + return a_prefix##iter_start_filtered(rbtree, start, right, \ + cb, arg, filter_node, filter_subtree, filter_ctx); \ + } else { \ + if (filter_node(filter_ctx, node)) { \ + ret = cb(rbtree, node, arg); \ + if (ret != NULL) { \ + return ret; \ + } \ + } \ + return a_prefix##iter_recurse_filtered(rbtree, right, cb, arg, \ + filter_node, filter_subtree, filter_ctx); \ + } \ +} \ +a_attr a_type * \ +a_prefix##iter_filtered(a_rbt_type *rbtree, a_type *start, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *ret; \ + if (start != NULL) { \ + ret = a_prefix##iter_start_filtered(rbtree, start, \ + rbtree->rbt_root, cb, arg, filter_node, filter_subtree, \ + filter_ctx); \ + } else { \ + ret = a_prefix##iter_recurse_filtered(rbtree, rbtree->rbt_root, \ + cb, arg, filter_node, filter_subtree, filter_ctx); \ + } \ + return ret; \ +} \ +a_attr a_type * \ +a_prefix##reverse_iter_recurse_filtered(a_rbt_type *rbtree, \ + a_type *node, a_type *(*cb)(a_rbt_type *, a_type *, void *), \ + void *arg, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + if (node == NULL || !filter_subtree(filter_ctx, node)) { \ + return NULL; \ + } \ + a_type *ret; \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + a_type *right = rbtn_right_get(a_type, a_field, node); \ + ret = a_prefix##reverse_iter_recurse_filtered(rbtree, right, cb, \ + arg, filter_node, filter_subtree, filter_ctx); \ + if (ret != NULL) { \ + return ret; \ + } \ + if (filter_node(filter_ctx, node)) { \ + ret = cb(rbtree, node, arg); \ + } \ + if (ret != NULL) { \ + return ret; \ + } \ + return a_prefix##reverse_iter_recurse_filtered(rbtree, left, cb, \ + arg, filter_node, filter_subtree, filter_ctx); \ +} \ +a_attr a_type * \ +a_prefix##reverse_iter_start_filtered(a_rbt_type *rbtree, a_type *start,\ + a_type *node, a_type *(*cb)(a_rbt_type *, a_type *, void *), \ + void *arg, bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + if (!filter_subtree(filter_ctx, node)) { \ + return NULL; \ + } \ + int cmp = a_cmp(start, node); \ + a_type *ret; \ + a_type *left = rbtn_left_get(a_type, a_field, node); \ + a_type *right = rbtn_right_get(a_type, a_field, node); \ + if (cmp > 0) { \ + ret = a_prefix##reverse_iter_start_filtered(rbtree, start, \ + right, cb, arg, filter_node, filter_subtree, filter_ctx); \ + if (ret != NULL) { \ + return ret; \ + } \ + if (filter_node(filter_ctx, node)) { \ + ret = cb(rbtree, node, arg); \ + if (ret != NULL) { \ + return ret; \ + } \ + } \ + return a_prefix##reverse_iter_recurse_filtered(rbtree, left, cb,\ + arg, filter_node, filter_subtree, filter_ctx); \ + } else if (cmp < 0) { \ + return a_prefix##reverse_iter_start_filtered(rbtree, start, \ + left, cb, arg, filter_node, filter_subtree, filter_ctx); \ + } else { \ + if (filter_node(filter_ctx, node)) { \ + ret = cb(rbtree, node, arg); \ + if (ret != NULL) { \ + return ret; \ + } \ + } \ + return a_prefix##reverse_iter_recurse_filtered(rbtree, left, cb,\ + arg, filter_node, filter_subtree, filter_ctx); \ + } \ +} \ +a_attr a_type * \ +a_prefix##reverse_iter_filtered(a_rbt_type *rbtree, a_type *start, \ + a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg, \ + bool (*filter_node)(void *, a_type *), \ + bool (*filter_subtree)(void *, a_type *), \ + void *filter_ctx) { \ + a_type *ret; \ + if (start != NULL) { \ + ret = a_prefix##reverse_iter_start_filtered(rbtree, start, \ + rbtree->rbt_root, cb, arg, filter_node, filter_subtree, \ + filter_ctx); \ + } else { \ + ret = a_prefix##reverse_iter_recurse_filtered(rbtree, \ + rbtree->rbt_root, cb, arg, filter_node, filter_subtree, \ + filter_ctx); \ + } \ + return ret; \ +} \ +) /* end rb_summarized_only */ + +#endif /* JEMALLOC_INTERNAL_RB_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/rtree.h b/deps/jemalloc/include/jemalloc/internal/rtree.h new file mode 100644 index 0000000..a00adb2 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/rtree.h @@ -0,0 +1,554 @@ +#ifndef JEMALLOC_INTERNAL_RTREE_H +#define JEMALLOC_INTERNAL_RTREE_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/mutex.h" +#include "jemalloc/internal/rtree_tsd.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/tsd.h" + +/* + * This radix tree implementation is tailored to the singular purpose of + * associating metadata with extents that are currently owned by jemalloc. + * + ******************************************************************************* + */ + +/* Number of high insignificant bits. */ +#define RTREE_NHIB ((1U << (LG_SIZEOF_PTR+3)) - LG_VADDR) +/* Number of low insigificant bits. */ +#define RTREE_NLIB LG_PAGE +/* Number of significant bits. */ +#define RTREE_NSB (LG_VADDR - RTREE_NLIB) +/* Number of levels in radix tree. */ +#if RTREE_NSB <= 10 +# define RTREE_HEIGHT 1 +#elif RTREE_NSB <= 36 +# define RTREE_HEIGHT 2 +#elif RTREE_NSB <= 52 +# define RTREE_HEIGHT 3 +#else +# error Unsupported number of significant virtual address bits +#endif +/* Use compact leaf representation if virtual address encoding allows. */ +#if RTREE_NHIB >= LG_CEIL(SC_NSIZES) +# define RTREE_LEAF_COMPACT +#endif + +typedef struct rtree_node_elm_s rtree_node_elm_t; +struct rtree_node_elm_s { + atomic_p_t child; /* (rtree_{node,leaf}_elm_t *) */ +}; + +typedef struct rtree_metadata_s rtree_metadata_t; +struct rtree_metadata_s { + szind_t szind; + extent_state_t state; /* Mirrors edata->state. */ + bool is_head; /* Mirrors edata->is_head. */ + bool slab; +}; + +typedef struct rtree_contents_s rtree_contents_t; +struct rtree_contents_s { + edata_t *edata; + rtree_metadata_t metadata; +}; + +#define RTREE_LEAF_STATE_WIDTH EDATA_BITS_STATE_WIDTH +#define RTREE_LEAF_STATE_SHIFT 2 +#define RTREE_LEAF_STATE_MASK MASK(RTREE_LEAF_STATE_WIDTH, RTREE_LEAF_STATE_SHIFT) + +struct rtree_leaf_elm_s { +#ifdef RTREE_LEAF_COMPACT + /* + * Single pointer-width field containing all three leaf element fields. + * For example, on a 64-bit x64 system with 48 significant virtual + * memory address bits, the index, edata, and slab fields are packed as + * such: + * + * x: index + * e: edata + * s: state + * h: is_head + * b: slab + * + * 00000000 xxxxxxxx eeeeeeee [...] eeeeeeee e00ssshb + */ + atomic_p_t le_bits; +#else + atomic_p_t le_edata; /* (edata_t *) */ + /* + * From high to low bits: szind (8 bits), state (4 bits), is_head, slab + */ + atomic_u_t le_metadata; +#endif +}; + +typedef struct rtree_level_s rtree_level_t; +struct rtree_level_s { + /* Number of key bits distinguished by this level. */ + unsigned bits; + /* + * Cumulative number of key bits distinguished by traversing to + * corresponding tree level. + */ + unsigned cumbits; +}; + +typedef struct rtree_s rtree_t; +struct rtree_s { + base_t *base; + malloc_mutex_t init_lock; + /* Number of elements based on rtree_levels[0].bits. */ +#if RTREE_HEIGHT > 1 + rtree_node_elm_t root[1U << (RTREE_NSB/RTREE_HEIGHT)]; +#else + rtree_leaf_elm_t root[1U << (RTREE_NSB/RTREE_HEIGHT)]; +#endif +}; + +/* + * Split the bits into one to three partitions depending on number of + * significant bits. It the number of bits does not divide evenly into the + * number of levels, place one remainder bit per level starting at the leaf + * level. + */ +static const rtree_level_t rtree_levels[] = { +#if RTREE_HEIGHT == 1 + {RTREE_NSB, RTREE_NHIB + RTREE_NSB} +#elif RTREE_HEIGHT == 2 + {RTREE_NSB/2, RTREE_NHIB + RTREE_NSB/2}, + {RTREE_NSB/2 + RTREE_NSB%2, RTREE_NHIB + RTREE_NSB} +#elif RTREE_HEIGHT == 3 + {RTREE_NSB/3, RTREE_NHIB + RTREE_NSB/3}, + {RTREE_NSB/3 + RTREE_NSB%3/2, + RTREE_NHIB + RTREE_NSB/3*2 + RTREE_NSB%3/2}, + {RTREE_NSB/3 + RTREE_NSB%3 - RTREE_NSB%3/2, RTREE_NHIB + RTREE_NSB} +#else +# error Unsupported rtree height +#endif +}; + +bool rtree_new(rtree_t *rtree, base_t *base, bool zeroed); + +rtree_leaf_elm_t *rtree_leaf_elm_lookup_hard(tsdn_t *tsdn, rtree_t *rtree, + rtree_ctx_t *rtree_ctx, uintptr_t key, bool dependent, bool init_missing); + +JEMALLOC_ALWAYS_INLINE unsigned +rtree_leaf_maskbits(void) { + unsigned ptrbits = ZU(1) << (LG_SIZEOF_PTR+3); + unsigned cumbits = (rtree_levels[RTREE_HEIGHT-1].cumbits - + rtree_levels[RTREE_HEIGHT-1].bits); + return ptrbits - cumbits; +} + +JEMALLOC_ALWAYS_INLINE uintptr_t +rtree_leafkey(uintptr_t key) { + uintptr_t mask = ~((ZU(1) << rtree_leaf_maskbits()) - 1); + return (key & mask); +} + +JEMALLOC_ALWAYS_INLINE size_t +rtree_cache_direct_map(uintptr_t key) { + return (size_t)((key >> rtree_leaf_maskbits()) & + (RTREE_CTX_NCACHE - 1)); +} + +JEMALLOC_ALWAYS_INLINE uintptr_t +rtree_subkey(uintptr_t key, unsigned level) { + unsigned ptrbits = ZU(1) << (LG_SIZEOF_PTR+3); + unsigned cumbits = rtree_levels[level].cumbits; + unsigned shiftbits = ptrbits - cumbits; + unsigned maskbits = rtree_levels[level].bits; + uintptr_t mask = (ZU(1) << maskbits) - 1; + return ((key >> shiftbits) & mask); +} + +/* + * Atomic getters. + * + * dependent: Reading a value on behalf of a pointer to a valid allocation + * is guaranteed to be a clean read even without synchronization, + * because the rtree update became visible in memory before the + * pointer came into existence. + * !dependent: An arbitrary read, e.g. on behalf of ivsalloc(), may not be + * dependent on a previous rtree write, which means a stale read + * could result if synchronization were omitted here. + */ +# ifdef RTREE_LEAF_COMPACT +JEMALLOC_ALWAYS_INLINE uintptr_t +rtree_leaf_elm_bits_read(tsdn_t *tsdn, rtree_t *rtree, + rtree_leaf_elm_t *elm, bool dependent) { + return (uintptr_t)atomic_load_p(&elm->le_bits, dependent + ? ATOMIC_RELAXED : ATOMIC_ACQUIRE); +} + +JEMALLOC_ALWAYS_INLINE uintptr_t +rtree_leaf_elm_bits_encode(rtree_contents_t contents) { + assert((uintptr_t)contents.edata % (uintptr_t)EDATA_ALIGNMENT == 0); + uintptr_t edata_bits = (uintptr_t)contents.edata + & (((uintptr_t)1 << LG_VADDR) - 1); + + uintptr_t szind_bits = (uintptr_t)contents.metadata.szind << LG_VADDR; + uintptr_t slab_bits = (uintptr_t)contents.metadata.slab; + uintptr_t is_head_bits = (uintptr_t)contents.metadata.is_head << 1; + uintptr_t state_bits = (uintptr_t)contents.metadata.state << + RTREE_LEAF_STATE_SHIFT; + uintptr_t metadata_bits = szind_bits | state_bits | is_head_bits | + slab_bits; + assert((edata_bits & metadata_bits) == 0); + + return edata_bits | metadata_bits; +} + +JEMALLOC_ALWAYS_INLINE rtree_contents_t +rtree_leaf_elm_bits_decode(uintptr_t bits) { + rtree_contents_t contents; + /* Do the easy things first. */ + contents.metadata.szind = bits >> LG_VADDR; + contents.metadata.slab = (bool)(bits & 1); + contents.metadata.is_head = (bool)(bits & (1 << 1)); + + uintptr_t state_bits = (bits & RTREE_LEAF_STATE_MASK) >> + RTREE_LEAF_STATE_SHIFT; + assert(state_bits <= extent_state_max); + contents.metadata.state = (extent_state_t)state_bits; + + uintptr_t low_bit_mask = ~((uintptr_t)EDATA_ALIGNMENT - 1); +# ifdef __aarch64__ + /* + * aarch64 doesn't sign extend the highest virtual address bit to set + * the higher ones. Instead, the high bits get zeroed. + */ + uintptr_t high_bit_mask = ((uintptr_t)1 << LG_VADDR) - 1; + /* Mask off metadata. */ + uintptr_t mask = high_bit_mask & low_bit_mask; + contents.edata = (edata_t *)(bits & mask); +# else + /* Restore sign-extended high bits, mask metadata bits. */ + contents.edata = (edata_t *)((uintptr_t)((intptr_t)(bits << RTREE_NHIB) + >> RTREE_NHIB) & low_bit_mask); +# endif + assert((uintptr_t)contents.edata % (uintptr_t)EDATA_ALIGNMENT == 0); + return contents; +} + +# endif /* RTREE_LEAF_COMPACT */ + +JEMALLOC_ALWAYS_INLINE rtree_contents_t +rtree_leaf_elm_read(tsdn_t *tsdn, rtree_t *rtree, rtree_leaf_elm_t *elm, + bool dependent) { +#ifdef RTREE_LEAF_COMPACT + uintptr_t bits = rtree_leaf_elm_bits_read(tsdn, rtree, elm, dependent); + rtree_contents_t contents = rtree_leaf_elm_bits_decode(bits); + return contents; +#else + rtree_contents_t contents; + unsigned metadata_bits = atomic_load_u(&elm->le_metadata, dependent + ? ATOMIC_RELAXED : ATOMIC_ACQUIRE); + contents.metadata.slab = (bool)(metadata_bits & 1); + contents.metadata.is_head = (bool)(metadata_bits & (1 << 1)); + + uintptr_t state_bits = (metadata_bits & RTREE_LEAF_STATE_MASK) >> + RTREE_LEAF_STATE_SHIFT; + assert(state_bits <= extent_state_max); + contents.metadata.state = (extent_state_t)state_bits; + contents.metadata.szind = metadata_bits >> (RTREE_LEAF_STATE_SHIFT + + RTREE_LEAF_STATE_WIDTH); + + contents.edata = (edata_t *)atomic_load_p(&elm->le_edata, dependent + ? ATOMIC_RELAXED : ATOMIC_ACQUIRE); + + return contents; +#endif +} + +JEMALLOC_ALWAYS_INLINE void +rtree_contents_encode(rtree_contents_t contents, void **bits, + unsigned *additional) { +#ifdef RTREE_LEAF_COMPACT + *bits = (void *)rtree_leaf_elm_bits_encode(contents); +#else + *additional = (unsigned)contents.metadata.slab + | ((unsigned)contents.metadata.is_head << 1) + | ((unsigned)contents.metadata.state << RTREE_LEAF_STATE_SHIFT) + | ((unsigned)contents.metadata.szind << (RTREE_LEAF_STATE_SHIFT + + RTREE_LEAF_STATE_WIDTH)); + *bits = contents.edata; +#endif +} + +JEMALLOC_ALWAYS_INLINE void +rtree_leaf_elm_write_commit(tsdn_t *tsdn, rtree_t *rtree, + rtree_leaf_elm_t *elm, void *bits, unsigned additional) { +#ifdef RTREE_LEAF_COMPACT + atomic_store_p(&elm->le_bits, bits, ATOMIC_RELEASE); +#else + atomic_store_u(&elm->le_metadata, additional, ATOMIC_RELEASE); + /* + * Write edata last, since the element is atomically considered valid + * as soon as the edata field is non-NULL. + */ + atomic_store_p(&elm->le_edata, bits, ATOMIC_RELEASE); +#endif +} + +JEMALLOC_ALWAYS_INLINE void +rtree_leaf_elm_write(tsdn_t *tsdn, rtree_t *rtree, + rtree_leaf_elm_t *elm, rtree_contents_t contents) { + assert((uintptr_t)contents.edata % EDATA_ALIGNMENT == 0); + void *bits; + unsigned additional; + + rtree_contents_encode(contents, &bits, &additional); + rtree_leaf_elm_write_commit(tsdn, rtree, elm, bits, additional); +} + +/* The state field can be updated independently (and more frequently). */ +JEMALLOC_ALWAYS_INLINE void +rtree_leaf_elm_state_update(tsdn_t *tsdn, rtree_t *rtree, + rtree_leaf_elm_t *elm1, rtree_leaf_elm_t *elm2, extent_state_t state) { + assert(elm1 != NULL); +#ifdef RTREE_LEAF_COMPACT + uintptr_t bits = rtree_leaf_elm_bits_read(tsdn, rtree, elm1, + /* dependent */ true); + bits &= ~RTREE_LEAF_STATE_MASK; + bits |= state << RTREE_LEAF_STATE_SHIFT; + atomic_store_p(&elm1->le_bits, (void *)bits, ATOMIC_RELEASE); + if (elm2 != NULL) { + atomic_store_p(&elm2->le_bits, (void *)bits, ATOMIC_RELEASE); + } +#else + unsigned bits = atomic_load_u(&elm1->le_metadata, ATOMIC_RELAXED); + bits &= ~RTREE_LEAF_STATE_MASK; + bits |= state << RTREE_LEAF_STATE_SHIFT; + atomic_store_u(&elm1->le_metadata, bits, ATOMIC_RELEASE); + if (elm2 != NULL) { + atomic_store_u(&elm2->le_metadata, bits, ATOMIC_RELEASE); + } +#endif +} + +/* + * Tries to look up the key in the L1 cache, returning false if there's a hit, or + * true if there's a miss. + * Key is allowed to be NULL; returns true in this case. + */ +JEMALLOC_ALWAYS_INLINE bool +rtree_leaf_elm_lookup_fast(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key, rtree_leaf_elm_t **elm) { + size_t slot = rtree_cache_direct_map(key); + uintptr_t leafkey = rtree_leafkey(key); + assert(leafkey != RTREE_LEAFKEY_INVALID); + + if (unlikely(rtree_ctx->cache[slot].leafkey != leafkey)) { + return true; + } + + rtree_leaf_elm_t *leaf = rtree_ctx->cache[slot].leaf; + assert(leaf != NULL); + uintptr_t subkey = rtree_subkey(key, RTREE_HEIGHT-1); + *elm = &leaf[subkey]; + + return false; +} + +JEMALLOC_ALWAYS_INLINE rtree_leaf_elm_t * +rtree_leaf_elm_lookup(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key, bool dependent, bool init_missing) { + assert(key != 0); + assert(!dependent || !init_missing); + + size_t slot = rtree_cache_direct_map(key); + uintptr_t leafkey = rtree_leafkey(key); + assert(leafkey != RTREE_LEAFKEY_INVALID); + + /* Fast path: L1 direct mapped cache. */ + if (likely(rtree_ctx->cache[slot].leafkey == leafkey)) { + rtree_leaf_elm_t *leaf = rtree_ctx->cache[slot].leaf; + assert(leaf != NULL); + uintptr_t subkey = rtree_subkey(key, RTREE_HEIGHT-1); + return &leaf[subkey]; + } + /* + * Search the L2 LRU cache. On hit, swap the matching element into the + * slot in L1 cache, and move the position in L2 up by 1. + */ +#define RTREE_CACHE_CHECK_L2(i) do { \ + if (likely(rtree_ctx->l2_cache[i].leafkey == leafkey)) { \ + rtree_leaf_elm_t *leaf = rtree_ctx->l2_cache[i].leaf; \ + assert(leaf != NULL); \ + if (i > 0) { \ + /* Bubble up by one. */ \ + rtree_ctx->l2_cache[i].leafkey = \ + rtree_ctx->l2_cache[i - 1].leafkey; \ + rtree_ctx->l2_cache[i].leaf = \ + rtree_ctx->l2_cache[i - 1].leaf; \ + rtree_ctx->l2_cache[i - 1].leafkey = \ + rtree_ctx->cache[slot].leafkey; \ + rtree_ctx->l2_cache[i - 1].leaf = \ + rtree_ctx->cache[slot].leaf; \ + } else { \ + rtree_ctx->l2_cache[0].leafkey = \ + rtree_ctx->cache[slot].leafkey; \ + rtree_ctx->l2_cache[0].leaf = \ + rtree_ctx->cache[slot].leaf; \ + } \ + rtree_ctx->cache[slot].leafkey = leafkey; \ + rtree_ctx->cache[slot].leaf = leaf; \ + uintptr_t subkey = rtree_subkey(key, RTREE_HEIGHT-1); \ + return &leaf[subkey]; \ + } \ +} while (0) + /* Check the first cache entry. */ + RTREE_CACHE_CHECK_L2(0); + /* Search the remaining cache elements. */ + for (unsigned i = 1; i < RTREE_CTX_NCACHE_L2; i++) { + RTREE_CACHE_CHECK_L2(i); + } +#undef RTREE_CACHE_CHECK_L2 + + return rtree_leaf_elm_lookup_hard(tsdn, rtree, rtree_ctx, key, + dependent, init_missing); +} + +/* + * Returns true on lookup failure. + */ +static inline bool +rtree_read_independent(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key, rtree_contents_t *r_contents) { + rtree_leaf_elm_t *elm = rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, + key, /* dependent */ false, /* init_missing */ false); + if (elm == NULL) { + return true; + } + *r_contents = rtree_leaf_elm_read(tsdn, rtree, elm, + /* dependent */ false); + return false; +} + +static inline rtree_contents_t +rtree_read(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key) { + rtree_leaf_elm_t *elm = rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, + key, /* dependent */ true, /* init_missing */ false); + assert(elm != NULL); + return rtree_leaf_elm_read(tsdn, rtree, elm, /* dependent */ true); +} + +static inline rtree_metadata_t +rtree_metadata_read(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key) { + rtree_leaf_elm_t *elm = rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, + key, /* dependent */ true, /* init_missing */ false); + assert(elm != NULL); + return rtree_leaf_elm_read(tsdn, rtree, elm, + /* dependent */ true).metadata; +} + +/* + * Returns true when the request cannot be fulfilled by fastpath. + */ +static inline bool +rtree_metadata_try_read_fast(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key, rtree_metadata_t *r_rtree_metadata) { + rtree_leaf_elm_t *elm; + /* + * Should check the bool return value (lookup success or not) instead of + * elm == NULL (which will result in an extra branch). This is because + * when the cache lookup succeeds, there will never be a NULL pointer + * returned (which is unknown to the compiler). + */ + if (rtree_leaf_elm_lookup_fast(tsdn, rtree, rtree_ctx, key, &elm)) { + return true; + } + assert(elm != NULL); + *r_rtree_metadata = rtree_leaf_elm_read(tsdn, rtree, elm, + /* dependent */ true).metadata; + return false; +} + +JEMALLOC_ALWAYS_INLINE void +rtree_write_range_impl(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t base, uintptr_t end, rtree_contents_t contents, bool clearing) { + assert((base & PAGE_MASK) == 0 && (end & PAGE_MASK) == 0); + /* + * Only used for emap_(de)register_interior, which implies the + * boundaries have been registered already. Therefore all the lookups + * are dependent w/o init_missing, assuming the range spans across at + * most 2 rtree leaf nodes (each covers 1 GiB of vaddr). + */ + void *bits; + unsigned additional; + rtree_contents_encode(contents, &bits, &additional); + + rtree_leaf_elm_t *elm = NULL; /* Dead store. */ + for (uintptr_t addr = base; addr <= end; addr += PAGE) { + if (addr == base || + (addr & ((ZU(1) << rtree_leaf_maskbits()) - 1)) == 0) { + elm = rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, addr, + /* dependent */ true, /* init_missing */ false); + assert(elm != NULL); + } + assert(elm == rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, addr, + /* dependent */ true, /* init_missing */ false)); + assert(!clearing || rtree_leaf_elm_read(tsdn, rtree, elm, + /* dependent */ true).edata != NULL); + rtree_leaf_elm_write_commit(tsdn, rtree, elm, bits, additional); + elm++; + } +} + +JEMALLOC_ALWAYS_INLINE void +rtree_write_range(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t base, uintptr_t end, rtree_contents_t contents) { + rtree_write_range_impl(tsdn, rtree, rtree_ctx, base, end, contents, + /* clearing */ false); +} + +JEMALLOC_ALWAYS_INLINE bool +rtree_write(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, uintptr_t key, + rtree_contents_t contents) { + rtree_leaf_elm_t *elm = rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, + key, /* dependent */ false, /* init_missing */ true); + if (elm == NULL) { + return true; + } + + rtree_leaf_elm_write(tsdn, rtree, elm, contents); + + return false; +} + +static inline void +rtree_clear(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t key) { + rtree_leaf_elm_t *elm = rtree_leaf_elm_lookup(tsdn, rtree, rtree_ctx, + key, /* dependent */ true, /* init_missing */ false); + assert(elm != NULL); + assert(rtree_leaf_elm_read(tsdn, rtree, elm, + /* dependent */ true).edata != NULL); + rtree_contents_t contents; + contents.edata = NULL; + contents.metadata.szind = SC_NSIZES; + contents.metadata.slab = false; + contents.metadata.is_head = false; + contents.metadata.state = (extent_state_t)0; + rtree_leaf_elm_write(tsdn, rtree, elm, contents); +} + +static inline void +rtree_clear_range(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx, + uintptr_t base, uintptr_t end) { + rtree_contents_t contents; + contents.edata = NULL; + contents.metadata.szind = SC_NSIZES; + contents.metadata.slab = false; + contents.metadata.is_head = false; + contents.metadata.state = (extent_state_t)0; + rtree_write_range_impl(tsdn, rtree, rtree_ctx, base, end, contents, + /* clearing */ true); +} + +#endif /* JEMALLOC_INTERNAL_RTREE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/rtree_tsd.h b/deps/jemalloc/include/jemalloc/internal/rtree_tsd.h new file mode 100644 index 0000000..e45525c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/rtree_tsd.h @@ -0,0 +1,62 @@ +#ifndef JEMALLOC_INTERNAL_RTREE_CTX_H +#define JEMALLOC_INTERNAL_RTREE_CTX_H + +/* + * Number of leafkey/leaf pairs to cache in L1 and L2 level respectively. Each + * entry supports an entire leaf, so the cache hit rate is typically high even + * with a small number of entries. In rare cases extent activity will straddle + * the boundary between two leaf nodes. Furthermore, an arena may use a + * combination of dss and mmap. Note that as memory usage grows past the amount + * that this cache can directly cover, the cache will become less effective if + * locality of reference is low, but the consequence is merely cache misses + * while traversing the tree nodes. + * + * The L1 direct mapped cache offers consistent and low cost on cache hit. + * However collision could affect hit rate negatively. This is resolved by + * combining with a L2 LRU cache, which requires linear search and re-ordering + * on access but suffers no collision. Note that, the cache will itself suffer + * cache misses if made overly large, plus the cost of linear search in the LRU + * cache. + */ +#define RTREE_CTX_NCACHE 16 +#define RTREE_CTX_NCACHE_L2 8 + +/* Needed for initialization only. */ +#define RTREE_LEAFKEY_INVALID ((uintptr_t)1) +#define RTREE_CTX_CACHE_ELM_INVALID {RTREE_LEAFKEY_INVALID, NULL} + +#define RTREE_CTX_INIT_ELM_1 RTREE_CTX_CACHE_ELM_INVALID +#define RTREE_CTX_INIT_ELM_2 RTREE_CTX_INIT_ELM_1, RTREE_CTX_INIT_ELM_1 +#define RTREE_CTX_INIT_ELM_4 RTREE_CTX_INIT_ELM_2, RTREE_CTX_INIT_ELM_2 +#define RTREE_CTX_INIT_ELM_8 RTREE_CTX_INIT_ELM_4, RTREE_CTX_INIT_ELM_4 +#define RTREE_CTX_INIT_ELM_16 RTREE_CTX_INIT_ELM_8, RTREE_CTX_INIT_ELM_8 + +#define _RTREE_CTX_INIT_ELM_DATA(n) RTREE_CTX_INIT_ELM_##n +#define RTREE_CTX_INIT_ELM_DATA(n) _RTREE_CTX_INIT_ELM_DATA(n) + +/* + * Static initializer (to invalidate the cache entries) is required because the + * free fastpath may access the rtree cache before a full tsd initialization. + */ +#define RTREE_CTX_INITIALIZER {{RTREE_CTX_INIT_ELM_DATA(RTREE_CTX_NCACHE)}, \ + {RTREE_CTX_INIT_ELM_DATA(RTREE_CTX_NCACHE_L2)}} + +typedef struct rtree_leaf_elm_s rtree_leaf_elm_t; + +typedef struct rtree_ctx_cache_elm_s rtree_ctx_cache_elm_t; +struct rtree_ctx_cache_elm_s { + uintptr_t leafkey; + rtree_leaf_elm_t *leaf; +}; + +typedef struct rtree_ctx_s rtree_ctx_t; +struct rtree_ctx_s { + /* Direct mapped cache. */ + rtree_ctx_cache_elm_t cache[RTREE_CTX_NCACHE]; + /* L2 LRU cache. */ + rtree_ctx_cache_elm_t l2_cache[RTREE_CTX_NCACHE_L2]; +}; + +void rtree_ctx_data_init(rtree_ctx_t *ctx); + +#endif /* JEMALLOC_INTERNAL_RTREE_CTX_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/safety_check.h b/deps/jemalloc/include/jemalloc/internal/safety_check.h new file mode 100644 index 0000000..f1a74f1 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/safety_check.h @@ -0,0 +1,31 @@ +#ifndef JEMALLOC_INTERNAL_SAFETY_CHECK_H +#define JEMALLOC_INTERNAL_SAFETY_CHECK_H + +void safety_check_fail_sized_dealloc(bool current_dealloc, const void *ptr, + size_t true_size, size_t input_size); +void safety_check_fail(const char *format, ...); + +typedef void (*safety_check_abort_hook_t)(const char *message); + +/* Can set to NULL for a default. */ +void safety_check_set_abort(safety_check_abort_hook_t abort_fn); + +JEMALLOC_ALWAYS_INLINE void +safety_check_set_redzone(void *ptr, size_t usize, size_t bumped_usize) { + assert(usize < bumped_usize); + for (size_t i = usize; i < bumped_usize && i < usize + 32; ++i) { + *((unsigned char *)ptr + i) = 0xBC; + } +} + +JEMALLOC_ALWAYS_INLINE void +safety_check_verify_redzone(const void *ptr, size_t usize, size_t bumped_usize) +{ + for (size_t i = usize; i < bumped_usize && i < usize + 32; ++i) { + if (unlikely(*((unsigned char *)ptr + i) != 0xBC)) { + safety_check_fail("Use after free error\n"); + } + } +} + +#endif /*JEMALLOC_INTERNAL_SAFETY_CHECK_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/san.h b/deps/jemalloc/include/jemalloc/internal/san.h new file mode 100644 index 0000000..8813d6b --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/san.h @@ -0,0 +1,191 @@ +#ifndef JEMALLOC_INTERNAL_GUARD_H +#define JEMALLOC_INTERNAL_GUARD_H + +#include "jemalloc/internal/ehooks.h" +#include "jemalloc/internal/emap.h" + +#define SAN_PAGE_GUARD PAGE +#define SAN_PAGE_GUARDS_SIZE (SAN_PAGE_GUARD * 2) + +#define SAN_GUARD_LARGE_EVERY_N_EXTENTS_DEFAULT 0 +#define SAN_GUARD_SMALL_EVERY_N_EXTENTS_DEFAULT 0 + +#define SAN_LG_UAF_ALIGN_DEFAULT (-1) +#define SAN_CACHE_BIN_NONFAST_MASK_DEFAULT (uintptr_t)(-1) + +static const uintptr_t uaf_detect_junk = (uintptr_t)0x5b5b5b5b5b5b5b5bULL; + +/* 0 means disabled, i.e. never guarded. */ +extern size_t opt_san_guard_large; +extern size_t opt_san_guard_small; +/* -1 means disabled, i.e. never check for use-after-free. */ +extern ssize_t opt_lg_san_uaf_align; + +void san_guard_pages(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + emap_t *emap, bool left, bool right, bool remap); +void san_unguard_pages(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + emap_t *emap, bool left, bool right); +/* + * Unguard the extent, but don't modify emap boundaries. Must be called on an + * extent that has been erased from emap and shouldn't be placed back. + */ +void san_unguard_pages_pre_destroy(tsdn_t *tsdn, ehooks_t *ehooks, + edata_t *edata, emap_t *emap); +void san_check_stashed_ptrs(void **ptrs, size_t nstashed, size_t usize); + +void tsd_san_init(tsd_t *tsd); +void san_init(ssize_t lg_san_uaf_align); + +static inline void +san_guard_pages_two_sided(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + emap_t *emap, bool remap) { + san_guard_pages(tsdn, ehooks, edata, emap, true, true, remap); +} + +static inline void +san_unguard_pages_two_sided(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata, + emap_t *emap) { + san_unguard_pages(tsdn, ehooks, edata, emap, true, true); +} + +static inline size_t +san_two_side_unguarded_sz(size_t size) { + assert(size % PAGE == 0); + assert(size >= SAN_PAGE_GUARDS_SIZE); + return size - SAN_PAGE_GUARDS_SIZE; +} + +static inline size_t +san_two_side_guarded_sz(size_t size) { + assert(size % PAGE == 0); + return size + SAN_PAGE_GUARDS_SIZE; +} + +static inline size_t +san_one_side_unguarded_sz(size_t size) { + assert(size % PAGE == 0); + assert(size >= SAN_PAGE_GUARD); + return size - SAN_PAGE_GUARD; +} + +static inline size_t +san_one_side_guarded_sz(size_t size) { + assert(size % PAGE == 0); + return size + SAN_PAGE_GUARD; +} + +static inline bool +san_guard_enabled(void) { + return (opt_san_guard_large != 0 || opt_san_guard_small != 0); +} + +static inline bool +san_large_extent_decide_guard(tsdn_t *tsdn, ehooks_t *ehooks, size_t size, + size_t alignment) { + if (opt_san_guard_large == 0 || ehooks_guard_will_fail(ehooks) || + tsdn_null(tsdn)) { + return false; + } + + tsd_t *tsd = tsdn_tsd(tsdn); + uint64_t n = tsd_san_extents_until_guard_large_get(tsd); + assert(n >= 1); + if (n > 1) { + /* + * Subtract conditionally because the guard may not happen due + * to alignment or size restriction below. + */ + *tsd_san_extents_until_guard_largep_get(tsd) = n - 1; + } + + if (n == 1 && (alignment <= PAGE) && + (san_two_side_guarded_sz(size) <= SC_LARGE_MAXCLASS)) { + *tsd_san_extents_until_guard_largep_get(tsd) = + opt_san_guard_large; + return true; + } else { + assert(tsd_san_extents_until_guard_large_get(tsd) >= 1); + return false; + } +} + +static inline bool +san_slab_extent_decide_guard(tsdn_t *tsdn, ehooks_t *ehooks) { + if (opt_san_guard_small == 0 || ehooks_guard_will_fail(ehooks) || + tsdn_null(tsdn)) { + return false; + } + + tsd_t *tsd = tsdn_tsd(tsdn); + uint64_t n = tsd_san_extents_until_guard_small_get(tsd); + assert(n >= 1); + if (n == 1) { + *tsd_san_extents_until_guard_smallp_get(tsd) = + opt_san_guard_small; + return true; + } else { + *tsd_san_extents_until_guard_smallp_get(tsd) = n - 1; + assert(tsd_san_extents_until_guard_small_get(tsd) >= 1); + return false; + } +} + +static inline void +san_junk_ptr_locations(void *ptr, size_t usize, void **first, void **mid, + void **last) { + size_t ptr_sz = sizeof(void *); + + *first = ptr; + + *mid = (void *)((uintptr_t)ptr + ((usize >> 1) & ~(ptr_sz - 1))); + assert(*first != *mid || usize == ptr_sz); + assert((uintptr_t)*first <= (uintptr_t)*mid); + + /* + * When usize > 32K, the gap between requested_size and usize might be + * greater than 4K -- this means the last write may access an + * likely-untouched page (default settings w/ 4K pages). However by + * default the tcache only goes up to the 32K size class, and is usually + * tuned lower instead of higher, which makes it less of a concern. + */ + *last = (void *)((uintptr_t)ptr + usize - sizeof(uaf_detect_junk)); + assert(*first != *last || usize == ptr_sz); + assert(*mid != *last || usize <= ptr_sz * 2); + assert((uintptr_t)*mid <= (uintptr_t)*last); +} + +static inline bool +san_junk_ptr_should_slow(void) { + /* + * The latter condition (pointer size greater than the min size class) + * is not expected -- fall back to the slow path for simplicity. + */ + return config_debug || (LG_SIZEOF_PTR > SC_LG_TINY_MIN); +} + +static inline void +san_junk_ptr(void *ptr, size_t usize) { + if (san_junk_ptr_should_slow()) { + memset(ptr, (char)uaf_detect_junk, usize); + return; + } + + void *first, *mid, *last; + san_junk_ptr_locations(ptr, usize, &first, &mid, &last); + *(uintptr_t *)first = uaf_detect_junk; + *(uintptr_t *)mid = uaf_detect_junk; + *(uintptr_t *)last = uaf_detect_junk; +} + +static inline bool +san_uaf_detection_enabled(void) { + bool ret = config_uaf_detection && (opt_lg_san_uaf_align != -1); + if (config_uaf_detection && ret) { + assert(san_cache_bin_nonfast_mask == ((uintptr_t)1 << + opt_lg_san_uaf_align) - 1); + } + + return ret; +} + +#endif /* JEMALLOC_INTERNAL_GUARD_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/san_bump.h b/deps/jemalloc/include/jemalloc/internal/san_bump.h new file mode 100644 index 0000000..8ec4a71 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/san_bump.h @@ -0,0 +1,52 @@ +#ifndef JEMALLOC_INTERNAL_SAN_BUMP_H +#define JEMALLOC_INTERNAL_SAN_BUMP_H + +#include "jemalloc/internal/edata.h" +#include "jemalloc/internal/exp_grow.h" +#include "jemalloc/internal/mutex.h" + +#define SBA_RETAINED_ALLOC_SIZE ((size_t)4 << 20) + +extern bool opt_retain; + +typedef struct ehooks_s ehooks_t; +typedef struct pac_s pac_t; + +typedef struct san_bump_alloc_s san_bump_alloc_t; +struct san_bump_alloc_s { + malloc_mutex_t mtx; + + edata_t *curr_reg; +}; + +static inline bool +san_bump_enabled() { + /* + * We enable san_bump allocator only when it's possible to break up a + * mapping and unmap a part of it (maps_coalesce). This is needed to + * ensure the arena destruction process can destroy all retained guarded + * extents one by one and to unmap a trailing part of a retained guarded + * region when it's too small to fit a pending allocation. + * opt_retain is required, because this allocator retains a large + * virtual memory mapping and returns smaller parts of it. + */ + return maps_coalesce && opt_retain; +} + +static inline bool +san_bump_alloc_init(san_bump_alloc_t* sba) { + bool err = malloc_mutex_init(&sba->mtx, "sanitizer_bump_allocator", + WITNESS_RANK_SAN_BUMP_ALLOC, malloc_mutex_rank_exclusive); + if (err) { + return true; + } + sba->curr_reg = NULL; + + return false; +} + +edata_t * +san_bump_alloc(tsdn_t *tsdn, san_bump_alloc_t* sba, pac_t *pac, ehooks_t *ehooks, + size_t size, bool zero); + +#endif /* JEMALLOC_INTERNAL_SAN_BUMP_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/sc.h b/deps/jemalloc/include/jemalloc/internal/sc.h new file mode 100644 index 0000000..9bab347 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/sc.h @@ -0,0 +1,357 @@ +#ifndef JEMALLOC_INTERNAL_SC_H +#define JEMALLOC_INTERNAL_SC_H + +#include "jemalloc/internal/jemalloc_internal_types.h" + +/* + * Size class computations: + * + * These are a little tricky; we'll first start by describing how things + * generally work, and then describe some of the details. + * + * Ignore the first few size classes for a moment. We can then split all the + * remaining size classes into groups. The size classes in a group are spaced + * such that they cover allocation request sizes in a power-of-2 range. The + * power of two is called the base of the group, and the size classes in it + * satisfy allocations in the half-open range (base, base * 2]. There are + * SC_NGROUP size classes in each group, equally spaced in the range, so that + * each one covers allocations for base / SC_NGROUP possible allocation sizes. + * We call that value (base / SC_NGROUP) the delta of the group. Each size class + * is delta larger than the one before it (including the initial size class in a + * group, which is delta larger than base, the largest size class in the + * previous group). + * To make the math all work out nicely, we require that SC_NGROUP is a power of + * two, and define it in terms of SC_LG_NGROUP. We'll often talk in terms of + * lg_base and lg_delta. For each of these groups then, we have that + * lg_delta == lg_base - SC_LG_NGROUP. + * The size classes in a group with a given lg_base and lg_delta (which, recall, + * can be computed from lg_base for these groups) are therefore: + * base + 1 * delta + * which covers allocations in (base, base + 1 * delta] + * base + 2 * delta + * which covers allocations in (base + 1 * delta, base + 2 * delta]. + * base + 3 * delta + * which covers allocations in (base + 2 * delta, base + 3 * delta]. + * ... + * base + SC_NGROUP * delta ( == 2 * base) + * which covers allocations in (base + (SC_NGROUP - 1) * delta, 2 * base]. + * (Note that currently SC_NGROUP is always 4, so the "..." is empty in + * practice.) + * Note that the last size class in the group is the next power of two (after + * base), so that we've set up the induction correctly for the next group's + * selection of delta. + * + * Now, let's start considering the first few size classes. Two extra constants + * come into play here: LG_QUANTUM and SC_LG_TINY_MIN. LG_QUANTUM ensures + * correct platform alignment; all objects of size (1 << LG_QUANTUM) or larger + * are at least (1 << LG_QUANTUM) aligned; this can be used to ensure that we + * never return improperly aligned memory, by making (1 << LG_QUANTUM) equal the + * highest required alignment of a platform. For allocation sizes smaller than + * (1 << LG_QUANTUM) though, we can be more relaxed (since we don't support + * platforms with types with alignment larger than their size). To allow such + * allocations (without wasting space unnecessarily), we introduce tiny size + * classes; one per power of two, up until we hit the quantum size. There are + * therefore LG_QUANTUM - SC_LG_TINY_MIN such size classes. + * + * Next, we have a size class of size (1 << LG_QUANTUM). This can't be the + * start of a group in the sense we described above (covering a power of two + * range) since, if we divided into it to pick a value of delta, we'd get a + * delta smaller than (1 << LG_QUANTUM) for sizes >= (1 << LG_QUANTUM), which + * is against the rules. + * + * The first base we can divide by SC_NGROUP while still being at least + * (1 << LG_QUANTUM) is SC_NGROUP * (1 << LG_QUANTUM). We can get there by + * having SC_NGROUP size classes, spaced (1 << LG_QUANTUM) apart. These size + * classes are: + * 1 * (1 << LG_QUANTUM) + * 2 * (1 << LG_QUANTUM) + * 3 * (1 << LG_QUANTUM) + * ... (although, as above, this "..." is empty in practice) + * SC_NGROUP * (1 << LG_QUANTUM). + * + * There are SC_NGROUP of these size classes, so we can regard it as a sort of + * pseudo-group, even though it spans multiple powers of 2, is divided + * differently, and both starts and ends on a power of 2 (as opposed to just + * ending). SC_NGROUP is itself a power of two, so the first group after the + * pseudo-group has the power-of-two base SC_NGROUP * (1 << LG_QUANTUM), for a + * lg_base of LG_QUANTUM + SC_LG_NGROUP. We can divide this base into SC_NGROUP + * sizes without violating our LG_QUANTUM requirements, so we can safely set + * lg_delta = lg_base - SC_LG_GROUP (== LG_QUANTUM). + * + * So, in order, the size classes are: + * + * Tiny size classes: + * - Count: LG_QUANTUM - SC_LG_TINY_MIN. + * - Sizes: + * 1 << SC_LG_TINY_MIN + * 1 << (SC_LG_TINY_MIN + 1) + * 1 << (SC_LG_TINY_MIN + 2) + * ... + * 1 << (LG_QUANTUM - 1) + * + * Initial pseudo-group: + * - Count: SC_NGROUP + * - Sizes: + * 1 * (1 << LG_QUANTUM) + * 2 * (1 << LG_QUANTUM) + * 3 * (1 << LG_QUANTUM) + * ... + * SC_NGROUP * (1 << LG_QUANTUM) + * + * Regular group 0: + * - Count: SC_NGROUP + * - Sizes: + * (relative to lg_base of LG_QUANTUM + SC_LG_NGROUP and lg_delta of + * lg_base - SC_LG_NGROUP) + * (1 << lg_base) + 1 * (1 << lg_delta) + * (1 << lg_base) + 2 * (1 << lg_delta) + * (1 << lg_base) + 3 * (1 << lg_delta) + * ... + * (1 << lg_base) + SC_NGROUP * (1 << lg_delta) [ == (1 << (lg_base + 1)) ] + * + * Regular group 1: + * - Count: SC_NGROUP + * - Sizes: + * (relative to lg_base of LG_QUANTUM + SC_LG_NGROUP + 1 and lg_delta of + * lg_base - SC_LG_NGROUP) + * (1 << lg_base) + 1 * (1 << lg_delta) + * (1 << lg_base) + 2 * (1 << lg_delta) + * (1 << lg_base) + 3 * (1 << lg_delta) + * ... + * (1 << lg_base) + SC_NGROUP * (1 << lg_delta) [ == (1 << (lg_base + 1)) ] + * + * ... + * + * Regular group N: + * - Count: SC_NGROUP + * - Sizes: + * (relative to lg_base of LG_QUANTUM + SC_LG_NGROUP + N and lg_delta of + * lg_base - SC_LG_NGROUP) + * (1 << lg_base) + 1 * (1 << lg_delta) + * (1 << lg_base) + 2 * (1 << lg_delta) + * (1 << lg_base) + 3 * (1 << lg_delta) + * ... + * (1 << lg_base) + SC_NGROUP * (1 << lg_delta) [ == (1 << (lg_base + 1)) ] + * + * + * Representation of metadata: + * To make the math easy, we'll mostly work in lg quantities. We record lg_base, + * lg_delta, and ndelta (i.e. number of deltas above the base) on a + * per-size-class basis, and maintain the invariant that, across all size + * classes, size == (1 << lg_base) + ndelta * (1 << lg_delta). + * + * For regular groups (i.e. those with lg_base >= LG_QUANTUM + SC_LG_NGROUP), + * lg_delta is lg_base - SC_LG_NGROUP, and ndelta goes from 1 to SC_NGROUP. + * + * For the initial tiny size classes (if any), lg_base is lg(size class size). + * lg_delta is lg_base for the first size class, and lg_base - 1 for all + * subsequent ones. ndelta is always 0. + * + * For the pseudo-group, if there are no tiny size classes, then we set + * lg_base == LG_QUANTUM, lg_delta == LG_QUANTUM, and have ndelta range from 0 + * to SC_NGROUP - 1. (Note that delta == base, so base + (SC_NGROUP - 1) * delta + * is just SC_NGROUP * base, or (1 << (SC_LG_NGROUP + LG_QUANTUM)), so we do + * indeed get a power of two that way). If there *are* tiny size classes, then + * the first size class needs to have lg_delta relative to the largest tiny size + * class. We therefore set lg_base == LG_QUANTUM - 1, + * lg_delta == LG_QUANTUM - 1, and ndelta == 1, keeping the rest of the + * pseudo-group the same. + * + * + * Other terminology: + * "Small" size classes mean those that are allocated out of bins, which is the + * same as those that are slab allocated. + * "Large" size classes are those that are not small. The cutoff for counting as + * large is page size * group size. + */ + +/* + * Size class N + (1 << SC_LG_NGROUP) twice the size of size class N. + */ +#define SC_LG_NGROUP 2 +#define SC_LG_TINY_MIN 3 + +#if SC_LG_TINY_MIN == 0 +/* The div module doesn't support division by 1, which this would require. */ +#error "Unsupported LG_TINY_MIN" +#endif + +/* + * The definitions below are all determined by the above settings and system + * characteristics. + */ +#define SC_NGROUP (1ULL << SC_LG_NGROUP) +#define SC_PTR_BITS ((1ULL << LG_SIZEOF_PTR) * 8) +#define SC_NTINY (LG_QUANTUM - SC_LG_TINY_MIN) +#define SC_LG_TINY_MAXCLASS (LG_QUANTUM > SC_LG_TINY_MIN ? LG_QUANTUM - 1 : -1) +#define SC_NPSEUDO SC_NGROUP +#define SC_LG_FIRST_REGULAR_BASE (LG_QUANTUM + SC_LG_NGROUP) +/* + * We cap allocations to be less than 2 ** (ptr_bits - 1), so the highest base + * we need is 2 ** (ptr_bits - 2). (This also means that the last group is 1 + * size class shorter than the others). + * We could probably save some space in arenas by capping this at LG_VADDR size. + */ +#define SC_LG_BASE_MAX (SC_PTR_BITS - 2) +#define SC_NREGULAR (SC_NGROUP * \ + (SC_LG_BASE_MAX - SC_LG_FIRST_REGULAR_BASE + 1) - 1) +#define SC_NSIZES (SC_NTINY + SC_NPSEUDO + SC_NREGULAR) + +/* + * The number of size classes that are a multiple of the page size. + * + * Here are the first few bases that have a page-sized SC. + * + * lg(base) | base | highest SC | page-multiple SCs + * --------------|------------------------------------------ + * LG_PAGE - 1 | PAGE / 2 | PAGE | 1 + * LG_PAGE | PAGE | 2 * PAGE | 1 + * LG_PAGE + 1 | 2 * PAGE | 4 * PAGE | 2 + * LG_PAGE + 2 | 4 * PAGE | 8 * PAGE | 4 + * + * The number of page-multiple SCs continues to grow in powers of two, up until + * lg_delta == lg_page, which corresponds to setting lg_base to lg_page + + * SC_LG_NGROUP. So, then, the number of size classes that are multiples of the + * page size whose lg_delta is less than the page size are + * is 1 + (2**0 + 2**1 + ... + 2**(lg_ngroup - 1) == 2**lg_ngroup. + * + * For each base with lg_base in [lg_page + lg_ngroup, lg_base_max), there are + * NGROUP page-sized size classes, and when lg_base == lg_base_max, there are + * NGROUP - 1. + * + * This gives us the quantity we seek. + */ +#define SC_NPSIZES ( \ + SC_NGROUP \ + + (SC_LG_BASE_MAX - (LG_PAGE + SC_LG_NGROUP)) * SC_NGROUP \ + + SC_NGROUP - 1) + +/* + * We declare a size class is binnable if size < page size * group. Or, in other + * words, lg(size) < lg(page size) + lg(group size). + */ +#define SC_NBINS ( \ + /* Sub-regular size classes. */ \ + SC_NTINY + SC_NPSEUDO \ + /* Groups with lg_regular_min_base <= lg_base <= lg_base_max */ \ + + SC_NGROUP * (LG_PAGE + SC_LG_NGROUP - SC_LG_FIRST_REGULAR_BASE) \ + /* Last SC of the last group hits the bound exactly; exclude it. */ \ + - 1) + +/* + * The size2index_tab lookup table uses uint8_t to encode each bin index, so we + * cannot support more than 256 small size classes. + */ +#if (SC_NBINS > 256) +# error "Too many small size classes" +#endif + +/* The largest size class in the lookup table, and its binary log. */ +#define SC_LG_MAX_LOOKUP 12 +#define SC_LOOKUP_MAXCLASS (1 << SC_LG_MAX_LOOKUP) + +/* Internal, only used for the definition of SC_SMALL_MAXCLASS. */ +#define SC_SMALL_MAX_BASE (1 << (LG_PAGE + SC_LG_NGROUP - 1)) +#define SC_SMALL_MAX_DELTA (1 << (LG_PAGE - 1)) + +/* The largest size class allocated out of a slab. */ +#define SC_SMALL_MAXCLASS (SC_SMALL_MAX_BASE \ + + (SC_NGROUP - 1) * SC_SMALL_MAX_DELTA) + +/* The fastpath assumes all lookup-able sizes are small. */ +#if (SC_SMALL_MAXCLASS < SC_LOOKUP_MAXCLASS) +# error "Lookup table sizes must be small" +#endif + +/* The smallest size class not allocated out of a slab. */ +#define SC_LARGE_MINCLASS ((size_t)1ULL << (LG_PAGE + SC_LG_NGROUP)) +#define SC_LG_LARGE_MINCLASS (LG_PAGE + SC_LG_NGROUP) + +/* Internal; only used for the definition of SC_LARGE_MAXCLASS. */ +#define SC_MAX_BASE ((size_t)1 << (SC_PTR_BITS - 2)) +#define SC_MAX_DELTA ((size_t)1 << (SC_PTR_BITS - 2 - SC_LG_NGROUP)) + +/* The largest size class supported. */ +#define SC_LARGE_MAXCLASS (SC_MAX_BASE + (SC_NGROUP - 1) * SC_MAX_DELTA) + +/* Maximum number of regions in one slab. */ +#ifndef CONFIG_LG_SLAB_MAXREGS +# define SC_LG_SLAB_MAXREGS (LG_PAGE - SC_LG_TINY_MIN) +#else +# if CONFIG_LG_SLAB_MAXREGS < (LG_PAGE - SC_LG_TINY_MIN) +# error "Unsupported SC_LG_SLAB_MAXREGS" +# else +# define SC_LG_SLAB_MAXREGS CONFIG_LG_SLAB_MAXREGS +# endif +#endif + +#define SC_SLAB_MAXREGS (1U << SC_LG_SLAB_MAXREGS) + +typedef struct sc_s sc_t; +struct sc_s { + /* Size class index, or -1 if not a valid size class. */ + int index; + /* Lg group base size (no deltas added). */ + int lg_base; + /* Lg delta to previous size class. */ + int lg_delta; + /* Delta multiplier. size == 1<<lg_base + ndelta<<lg_delta */ + int ndelta; + /* + * True if the size class is a multiple of the page size, false + * otherwise. + */ + bool psz; + /* + * True if the size class is a small, bin, size class. False otherwise. + */ + bool bin; + /* The slab page count if a small bin size class, 0 otherwise. */ + int pgs; + /* Same as lg_delta if a lookup table size class, 0 otherwise. */ + int lg_delta_lookup; +}; + +typedef struct sc_data_s sc_data_t; +struct sc_data_s { + /* Number of tiny size classes. */ + unsigned ntiny; + /* Number of bins supported by the lookup table. */ + int nlbins; + /* Number of small size class bins. */ + int nbins; + /* Number of size classes. */ + int nsizes; + /* Number of bits required to store NSIZES. */ + int lg_ceil_nsizes; + /* Number of size classes that are a multiple of (1U << LG_PAGE). */ + unsigned npsizes; + /* Lg of maximum tiny size class (or -1, if none). */ + int lg_tiny_maxclass; + /* Maximum size class included in lookup table. */ + size_t lookup_maxclass; + /* Maximum small size class. */ + size_t small_maxclass; + /* Lg of minimum large size class. */ + int lg_large_minclass; + /* The minimum large size class. */ + size_t large_minclass; + /* Maximum (large) size class. */ + size_t large_maxclass; + /* True if the sc_data_t has been initialized (for debugging only). */ + bool initialized; + + sc_t sc[SC_NSIZES]; +}; + +size_t reg_size_compute(int lg_base, int lg_delta, int ndelta); +void sc_data_init(sc_data_t *data); +/* + * Updates slab sizes in [begin, end] to be pgs pages in length, if possible. + * Otherwise, does its best to accommodate the request. + */ +void sc_data_update_slab_size(sc_data_t *data, size_t begin, size_t end, + int pgs); +void sc_boot(sc_data_t *data); + +#endif /* JEMALLOC_INTERNAL_SC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/sec.h b/deps/jemalloc/include/jemalloc/internal/sec.h new file mode 100644 index 0000000..fa86338 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/sec.h @@ -0,0 +1,120 @@ +#ifndef JEMALLOC_INTERNAL_SEC_H +#define JEMALLOC_INTERNAL_SEC_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/pai.h" + +/* + * Small extent cache. + * + * This includes some utilities to cache small extents. We have a per-pszind + * bin with its own list of extents of that size. We don't try to do any + * coalescing of extents (since it would in general require cross-shard locks or + * knowledge of the underlying PAI implementation). + */ + +/* + * For now, this is just one field; eventually, we'll probably want to get more + * fine-grained data out (like per-size class statistics). + */ +typedef struct sec_stats_s sec_stats_t; +struct sec_stats_s { + /* Sum of bytes_cur across all shards. */ + size_t bytes; +}; + +static inline void +sec_stats_accum(sec_stats_t *dst, sec_stats_t *src) { + dst->bytes += src->bytes; +} + +/* A collections of free extents, all of the same size. */ +typedef struct sec_bin_s sec_bin_t; +struct sec_bin_s { + /* + * When we fail to fulfill an allocation, we do a batch-alloc on the + * underlying allocator to fill extra items, as well. We drop the SEC + * lock while doing so, to allow operations on other bins to succeed. + * That introduces the possibility of other threads also trying to + * allocate out of this bin, failing, and also going to the backing + * allocator. To avoid a thundering herd problem in which lots of + * threads do batch allocs and overfill this bin as a result, we only + * allow one batch allocation at a time for a bin. This bool tracks + * whether or not some thread is already batch allocating. + * + * Eventually, the right answer may be a smarter sharding policy for the + * bins (e.g. a mutex per bin, which would also be more scalable + * generally; the batch-allocating thread could hold it while + * batch-allocating). + */ + bool being_batch_filled; + + /* + * Number of bytes in this particular bin (as opposed to the + * sec_shard_t's bytes_cur. This isn't user visible or reported in + * stats; rather, it allows us to quickly determine the change in the + * centralized counter when flushing. + */ + size_t bytes_cur; + edata_list_active_t freelist; +}; + +typedef struct sec_shard_s sec_shard_t; +struct sec_shard_s { + /* + * We don't keep per-bin mutexes, even though that would allow more + * sharding; this allows global cache-eviction, which in turn allows for + * better balancing across free lists. + */ + malloc_mutex_t mtx; + /* + * A SEC may need to be shut down (i.e. flushed of its contents and + * prevented from further caching). To avoid tricky synchronization + * issues, we just track enabled-status in each shard, guarded by a + * mutex. In practice, this is only ever checked during brief races, + * since the arena-level atomic boolean tracking HPA enabled-ness means + * that we won't go down these pathways very often after custom extent + * hooks are installed. + */ + bool enabled; + sec_bin_t *bins; + /* Number of bytes in all bins in the shard. */ + size_t bytes_cur; + /* The next pszind to flush in the flush-some pathways. */ + pszind_t to_flush_next; +}; + +typedef struct sec_s sec_t; +struct sec_s { + pai_t pai; + pai_t *fallback; + + sec_opts_t opts; + sec_shard_t *shards; + pszind_t npsizes; +}; + +bool sec_init(tsdn_t *tsdn, sec_t *sec, base_t *base, pai_t *fallback, + const sec_opts_t *opts); +void sec_flush(tsdn_t *tsdn, sec_t *sec); +void sec_disable(tsdn_t *tsdn, sec_t *sec); + +/* + * Morally, these two stats methods probably ought to be a single one (and the + * mutex_prof_data ought to live in the sec_stats_t. But splitting them apart + * lets them fit easily into the pa_shard stats framework (which also has this + * split), which simplifies the stats management. + */ +void sec_stats_merge(tsdn_t *tsdn, sec_t *sec, sec_stats_t *stats); +void sec_mutex_stats_read(tsdn_t *tsdn, sec_t *sec, + mutex_prof_data_t *mutex_prof_data); + +/* + * We use the arena lock ordering; these are acquired in phase 2 of forking, but + * should be acquired before the underlying allocator mutexes. + */ +void sec_prefork2(tsdn_t *tsdn, sec_t *sec); +void sec_postfork_parent(tsdn_t *tsdn, sec_t *sec); +void sec_postfork_child(tsdn_t *tsdn, sec_t *sec); + +#endif /* JEMALLOC_INTERNAL_SEC_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/sec_opts.h b/deps/jemalloc/include/jemalloc/internal/sec_opts.h new file mode 100644 index 0000000..a3ad72f --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/sec_opts.h @@ -0,0 +1,59 @@ +#ifndef JEMALLOC_INTERNAL_SEC_OPTS_H +#define JEMALLOC_INTERNAL_SEC_OPTS_H + +/* + * The configuration settings used by an sec_t. Morally, this is part of the + * SEC interface, but we put it here for header-ordering reasons. + */ + +typedef struct sec_opts_s sec_opts_t; +struct sec_opts_s { + /* + * We don't necessarily always use all the shards; requests are + * distributed across shards [0, nshards - 1). + */ + size_t nshards; + /* + * We'll automatically refuse to cache any objects in this sec if + * they're larger than max_alloc bytes, instead forwarding such objects + * directly to the fallback. + */ + size_t max_alloc; + /* + * Exceeding this amount of cached extents in a shard causes us to start + * flushing bins in that shard until we fall below bytes_after_flush. + */ + size_t max_bytes; + /* + * The number of bytes (in all bins) we flush down to when we exceed + * bytes_cur. We want this to be less than bytes_cur, because + * otherwise we could get into situations where a shard undergoing + * net-deallocation keeps bytes_cur very near to max_bytes, so that + * most deallocations get immediately forwarded to the underlying PAI + * implementation, defeating the point of the SEC. + */ + size_t bytes_after_flush; + /* + * When we can't satisfy an allocation out of the SEC because there are + * no available ones cached, we allocate multiple of that size out of + * the fallback allocator. Eventually we might want to do something + * cleverer, but for now we just grab a fixed number. + */ + size_t batch_fill_extra; +}; + +#define SEC_OPTS_DEFAULT { \ + /* nshards */ \ + 4, \ + /* max_alloc */ \ + (32 * 1024) < PAGE ? PAGE : (32 * 1024), \ + /* max_bytes */ \ + 256 * 1024, \ + /* bytes_after_flush */ \ + 128 * 1024, \ + /* batch_fill_extra */ \ + 0 \ +} + + +#endif /* JEMALLOC_INTERNAL_SEC_OPTS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/seq.h b/deps/jemalloc/include/jemalloc/internal/seq.h new file mode 100644 index 0000000..ef2df4c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/seq.h @@ -0,0 +1,55 @@ +#ifndef JEMALLOC_INTERNAL_SEQ_H +#define JEMALLOC_INTERNAL_SEQ_H + +#include "jemalloc/internal/atomic.h" + +/* + * A simple seqlock implementation. + */ + +#define seq_define(type, short_type) \ +typedef struct { \ + atomic_zu_t seq; \ + atomic_zu_t data[ \ + (sizeof(type) + sizeof(size_t) - 1) / sizeof(size_t)]; \ +} seq_##short_type##_t; \ + \ +/* \ + * No internal synchronization -- the caller must ensure that there's \ + * only a single writer at a time. \ + */ \ +static inline void \ +seq_store_##short_type(seq_##short_type##_t *dst, type *src) { \ + size_t buf[sizeof(dst->data) / sizeof(size_t)]; \ + buf[sizeof(buf) / sizeof(size_t) - 1] = 0; \ + memcpy(buf, src, sizeof(type)); \ + size_t old_seq = atomic_load_zu(&dst->seq, ATOMIC_RELAXED); \ + atomic_store_zu(&dst->seq, old_seq + 1, ATOMIC_RELAXED); \ + atomic_fence(ATOMIC_RELEASE); \ + for (size_t i = 0; i < sizeof(buf) / sizeof(size_t); i++) { \ + atomic_store_zu(&dst->data[i], buf[i], ATOMIC_RELAXED); \ + } \ + atomic_store_zu(&dst->seq, old_seq + 2, ATOMIC_RELEASE); \ +} \ + \ +/* Returns whether or not the read was consistent. */ \ +static inline bool \ +seq_try_load_##short_type(type *dst, seq_##short_type##_t *src) { \ + size_t buf[sizeof(src->data) / sizeof(size_t)]; \ + size_t seq1 = atomic_load_zu(&src->seq, ATOMIC_ACQUIRE); \ + if (seq1 % 2 != 0) { \ + return false; \ + } \ + for (size_t i = 0; i < sizeof(buf) / sizeof(size_t); i++) { \ + buf[i] = atomic_load_zu(&src->data[i], ATOMIC_RELAXED); \ + } \ + atomic_fence(ATOMIC_ACQUIRE); \ + size_t seq2 = atomic_load_zu(&src->seq, ATOMIC_RELAXED); \ + if (seq1 != seq2) { \ + return false; \ + } \ + memcpy(dst, buf, sizeof(type)); \ + return true; \ +} + +#endif /* JEMALLOC_INTERNAL_SEQ_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/slab_data.h b/deps/jemalloc/include/jemalloc/internal/slab_data.h new file mode 100644 index 0000000..e821863 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/slab_data.h @@ -0,0 +1,12 @@ +#ifndef JEMALLOC_INTERNAL_SLAB_DATA_H +#define JEMALLOC_INTERNAL_SLAB_DATA_H + +#include "jemalloc/internal/bitmap.h" + +typedef struct slab_data_s slab_data_t; +struct slab_data_s { + /* Per region allocated/deallocated bitmap. */ + bitmap_t bitmap[BITMAP_GROUPS_MAX]; +}; + +#endif /* JEMALLOC_INTERNAL_SLAB_DATA_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/smoothstep.h b/deps/jemalloc/include/jemalloc/internal/smoothstep.h new file mode 100644 index 0000000..2e14430 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/smoothstep.h @@ -0,0 +1,232 @@ +#ifndef JEMALLOC_INTERNAL_SMOOTHSTEP_H +#define JEMALLOC_INTERNAL_SMOOTHSTEP_H + +/* + * This file was generated by the following command: + * sh smoothstep.sh smoother 200 24 3 15 + */ +/******************************************************************************/ + +/* + * This header defines a precomputed table based on the smoothstep family of + * sigmoidal curves (https://en.wikipedia.org/wiki/Smoothstep) that grow from 0 + * to 1 in 0 <= x <= 1. The table is stored as integer fixed point values so + * that floating point math can be avoided. + * + * 3 2 + * smoothstep(x) = -2x + 3x + * + * 5 4 3 + * smootherstep(x) = 6x - 15x + 10x + * + * 7 6 5 4 + * smootheststep(x) = -20x + 70x - 84x + 35x + */ + +#define SMOOTHSTEP_VARIANT "smoother" +#define SMOOTHSTEP_NSTEPS 200 +#define SMOOTHSTEP_BFP 24 +#define SMOOTHSTEP \ + /* STEP(step, h, x, y) */ \ + STEP( 1, UINT64_C(0x0000000000000014), 0.005, 0.000001240643750) \ + STEP( 2, UINT64_C(0x00000000000000a5), 0.010, 0.000009850600000) \ + STEP( 3, UINT64_C(0x0000000000000229), 0.015, 0.000032995181250) \ + STEP( 4, UINT64_C(0x0000000000000516), 0.020, 0.000077619200000) \ + STEP( 5, UINT64_C(0x00000000000009dc), 0.025, 0.000150449218750) \ + STEP( 6, UINT64_C(0x00000000000010e8), 0.030, 0.000257995800000) \ + STEP( 7, UINT64_C(0x0000000000001aa4), 0.035, 0.000406555756250) \ + STEP( 8, UINT64_C(0x0000000000002777), 0.040, 0.000602214400000) \ + STEP( 9, UINT64_C(0x00000000000037c2), 0.045, 0.000850847793750) \ + STEP( 10, UINT64_C(0x0000000000004be6), 0.050, 0.001158125000000) \ + STEP( 11, UINT64_C(0x000000000000643c), 0.055, 0.001529510331250) \ + STEP( 12, UINT64_C(0x000000000000811f), 0.060, 0.001970265600000) \ + STEP( 13, UINT64_C(0x000000000000a2e2), 0.065, 0.002485452368750) \ + STEP( 14, UINT64_C(0x000000000000c9d8), 0.070, 0.003079934200000) \ + STEP( 15, UINT64_C(0x000000000000f64f), 0.075, 0.003758378906250) \ + STEP( 16, UINT64_C(0x0000000000012891), 0.080, 0.004525260800000) \ + STEP( 17, UINT64_C(0x00000000000160e7), 0.085, 0.005384862943750) \ + STEP( 18, UINT64_C(0x0000000000019f95), 0.090, 0.006341279400000) \ + STEP( 19, UINT64_C(0x000000000001e4dc), 0.095, 0.007398417481250) \ + STEP( 20, UINT64_C(0x00000000000230fc), 0.100, 0.008560000000000) \ + STEP( 21, UINT64_C(0x0000000000028430), 0.105, 0.009829567518750) \ + STEP( 22, UINT64_C(0x000000000002deb0), 0.110, 0.011210480600000) \ + STEP( 23, UINT64_C(0x00000000000340b1), 0.115, 0.012705922056250) \ + STEP( 24, UINT64_C(0x000000000003aa67), 0.120, 0.014318899200000) \ + STEP( 25, UINT64_C(0x0000000000041c00), 0.125, 0.016052246093750) \ + STEP( 26, UINT64_C(0x00000000000495a8), 0.130, 0.017908625800000) \ + STEP( 27, UINT64_C(0x000000000005178b), 0.135, 0.019890532631250) \ + STEP( 28, UINT64_C(0x000000000005a1cf), 0.140, 0.022000294400000) \ + STEP( 29, UINT64_C(0x0000000000063498), 0.145, 0.024240074668750) \ + STEP( 30, UINT64_C(0x000000000006d009), 0.150, 0.026611875000000) \ + STEP( 31, UINT64_C(0x000000000007743f), 0.155, 0.029117537206250) \ + STEP( 32, UINT64_C(0x0000000000082157), 0.160, 0.031758745600000) \ + STEP( 33, UINT64_C(0x000000000008d76b), 0.165, 0.034537029243750) \ + STEP( 34, UINT64_C(0x0000000000099691), 0.170, 0.037453764200000) \ + STEP( 35, UINT64_C(0x00000000000a5edf), 0.175, 0.040510175781250) \ + STEP( 36, UINT64_C(0x00000000000b3067), 0.180, 0.043707340800000) \ + STEP( 37, UINT64_C(0x00000000000c0b38), 0.185, 0.047046189818750) \ + STEP( 38, UINT64_C(0x00000000000cef5e), 0.190, 0.050527509400000) \ + STEP( 39, UINT64_C(0x00000000000ddce6), 0.195, 0.054151944356250) \ + STEP( 40, UINT64_C(0x00000000000ed3d8), 0.200, 0.057920000000000) \ + STEP( 41, UINT64_C(0x00000000000fd439), 0.205, 0.061832044393750) \ + STEP( 42, UINT64_C(0x000000000010de0e), 0.210, 0.065888310600000) \ + STEP( 43, UINT64_C(0x000000000011f158), 0.215, 0.070088898931250) \ + STEP( 44, UINT64_C(0x0000000000130e17), 0.220, 0.074433779200000) \ + STEP( 45, UINT64_C(0x0000000000143448), 0.225, 0.078922792968750) \ + STEP( 46, UINT64_C(0x00000000001563e7), 0.230, 0.083555655800000) \ + STEP( 47, UINT64_C(0x0000000000169cec), 0.235, 0.088331959506250) \ + STEP( 48, UINT64_C(0x000000000017df4f), 0.240, 0.093251174400000) \ + STEP( 49, UINT64_C(0x0000000000192b04), 0.245, 0.098312651543750) \ + STEP( 50, UINT64_C(0x00000000001a8000), 0.250, 0.103515625000000) \ + STEP( 51, UINT64_C(0x00000000001bde32), 0.255, 0.108859214081250) \ + STEP( 52, UINT64_C(0x00000000001d458b), 0.260, 0.114342425600000) \ + STEP( 53, UINT64_C(0x00000000001eb5f8), 0.265, 0.119964156118750) \ + STEP( 54, UINT64_C(0x0000000000202f65), 0.270, 0.125723194200000) \ + STEP( 55, UINT64_C(0x000000000021b1bb), 0.275, 0.131618222656250) \ + STEP( 56, UINT64_C(0x0000000000233ce3), 0.280, 0.137647820800000) \ + STEP( 57, UINT64_C(0x000000000024d0c3), 0.285, 0.143810466693750) \ + STEP( 58, UINT64_C(0x0000000000266d40), 0.290, 0.150104539400000) \ + STEP( 59, UINT64_C(0x000000000028123d), 0.295, 0.156528321231250) \ + STEP( 60, UINT64_C(0x000000000029bf9c), 0.300, 0.163080000000000) \ + STEP( 61, UINT64_C(0x00000000002b753d), 0.305, 0.169757671268750) \ + STEP( 62, UINT64_C(0x00000000002d32fe), 0.310, 0.176559340600000) \ + STEP( 63, UINT64_C(0x00000000002ef8bc), 0.315, 0.183482925806250) \ + STEP( 64, UINT64_C(0x000000000030c654), 0.320, 0.190526259200000) \ + STEP( 65, UINT64_C(0x0000000000329b9f), 0.325, 0.197687089843750) \ + STEP( 66, UINT64_C(0x0000000000347875), 0.330, 0.204963085800000) \ + STEP( 67, UINT64_C(0x0000000000365cb0), 0.335, 0.212351836381250) \ + STEP( 68, UINT64_C(0x0000000000384825), 0.340, 0.219850854400000) \ + STEP( 69, UINT64_C(0x00000000003a3aa8), 0.345, 0.227457578418750) \ + STEP( 70, UINT64_C(0x00000000003c340f), 0.350, 0.235169375000000) \ + STEP( 71, UINT64_C(0x00000000003e342b), 0.355, 0.242983540956250) \ + STEP( 72, UINT64_C(0x0000000000403ace), 0.360, 0.250897305600000) \ + STEP( 73, UINT64_C(0x00000000004247c8), 0.365, 0.258907832993750) \ + STEP( 74, UINT64_C(0x0000000000445ae9), 0.370, 0.267012224200000) \ + STEP( 75, UINT64_C(0x0000000000467400), 0.375, 0.275207519531250) \ + STEP( 76, UINT64_C(0x00000000004892d8), 0.380, 0.283490700800000) \ + STEP( 77, UINT64_C(0x00000000004ab740), 0.385, 0.291858693568750) \ + STEP( 78, UINT64_C(0x00000000004ce102), 0.390, 0.300308369400000) \ + STEP( 79, UINT64_C(0x00000000004f0fe9), 0.395, 0.308836548106250) \ + STEP( 80, UINT64_C(0x00000000005143bf), 0.400, 0.317440000000000) \ + STEP( 81, UINT64_C(0x0000000000537c4d), 0.405, 0.326115448143750) \ + STEP( 82, UINT64_C(0x000000000055b95b), 0.410, 0.334859570600000) \ + STEP( 83, UINT64_C(0x000000000057fab1), 0.415, 0.343669002681250) \ + STEP( 84, UINT64_C(0x00000000005a4015), 0.420, 0.352540339200000) \ + STEP( 85, UINT64_C(0x00000000005c894e), 0.425, 0.361470136718750) \ + STEP( 86, UINT64_C(0x00000000005ed622), 0.430, 0.370454915800000) \ + STEP( 87, UINT64_C(0x0000000000612655), 0.435, 0.379491163256250) \ + STEP( 88, UINT64_C(0x00000000006379ac), 0.440, 0.388575334400000) \ + STEP( 89, UINT64_C(0x000000000065cfeb), 0.445, 0.397703855293750) \ + STEP( 90, UINT64_C(0x00000000006828d6), 0.450, 0.406873125000000) \ + STEP( 91, UINT64_C(0x00000000006a842f), 0.455, 0.416079517831250) \ + STEP( 92, UINT64_C(0x00000000006ce1bb), 0.460, 0.425319385600000) \ + STEP( 93, UINT64_C(0x00000000006f413a), 0.465, 0.434589059868750) \ + STEP( 94, UINT64_C(0x000000000071a270), 0.470, 0.443884854200000) \ + STEP( 95, UINT64_C(0x000000000074051d), 0.475, 0.453203066406250) \ + STEP( 96, UINT64_C(0x0000000000766905), 0.480, 0.462539980800000) \ + STEP( 97, UINT64_C(0x000000000078cde7), 0.485, 0.471891870443750) \ + STEP( 98, UINT64_C(0x00000000007b3387), 0.490, 0.481254999400000) \ + STEP( 99, UINT64_C(0x00000000007d99a4), 0.495, 0.490625624981250) \ + STEP( 100, UINT64_C(0x0000000000800000), 0.500, 0.500000000000000) \ + STEP( 101, UINT64_C(0x000000000082665b), 0.505, 0.509374375018750) \ + STEP( 102, UINT64_C(0x000000000084cc78), 0.510, 0.518745000600000) \ + STEP( 103, UINT64_C(0x0000000000873218), 0.515, 0.528108129556250) \ + STEP( 104, UINT64_C(0x00000000008996fa), 0.520, 0.537460019200000) \ + STEP( 105, UINT64_C(0x00000000008bfae2), 0.525, 0.546796933593750) \ + STEP( 106, UINT64_C(0x00000000008e5d8f), 0.530, 0.556115145800000) \ + STEP( 107, UINT64_C(0x000000000090bec5), 0.535, 0.565410940131250) \ + STEP( 108, UINT64_C(0x0000000000931e44), 0.540, 0.574680614400000) \ + STEP( 109, UINT64_C(0x0000000000957bd0), 0.545, 0.583920482168750) \ + STEP( 110, UINT64_C(0x000000000097d729), 0.550, 0.593126875000000) \ + STEP( 111, UINT64_C(0x00000000009a3014), 0.555, 0.602296144706250) \ + STEP( 112, UINT64_C(0x00000000009c8653), 0.560, 0.611424665600000) \ + STEP( 113, UINT64_C(0x00000000009ed9aa), 0.565, 0.620508836743750) \ + STEP( 114, UINT64_C(0x0000000000a129dd), 0.570, 0.629545084200000) \ + STEP( 115, UINT64_C(0x0000000000a376b1), 0.575, 0.638529863281250) \ + STEP( 116, UINT64_C(0x0000000000a5bfea), 0.580, 0.647459660800000) \ + STEP( 117, UINT64_C(0x0000000000a8054e), 0.585, 0.656330997318750) \ + STEP( 118, UINT64_C(0x0000000000aa46a4), 0.590, 0.665140429400000) \ + STEP( 119, UINT64_C(0x0000000000ac83b2), 0.595, 0.673884551856250) \ + STEP( 120, UINT64_C(0x0000000000aebc40), 0.600, 0.682560000000000) \ + STEP( 121, UINT64_C(0x0000000000b0f016), 0.605, 0.691163451893750) \ + STEP( 122, UINT64_C(0x0000000000b31efd), 0.610, 0.699691630600000) \ + STEP( 123, UINT64_C(0x0000000000b548bf), 0.615, 0.708141306431250) \ + STEP( 124, UINT64_C(0x0000000000b76d27), 0.620, 0.716509299200000) \ + STEP( 125, UINT64_C(0x0000000000b98c00), 0.625, 0.724792480468750) \ + STEP( 126, UINT64_C(0x0000000000bba516), 0.630, 0.732987775800000) \ + STEP( 127, UINT64_C(0x0000000000bdb837), 0.635, 0.741092167006250) \ + STEP( 128, UINT64_C(0x0000000000bfc531), 0.640, 0.749102694400000) \ + STEP( 129, UINT64_C(0x0000000000c1cbd4), 0.645, 0.757016459043750) \ + STEP( 130, UINT64_C(0x0000000000c3cbf0), 0.650, 0.764830625000000) \ + STEP( 131, UINT64_C(0x0000000000c5c557), 0.655, 0.772542421581250) \ + STEP( 132, UINT64_C(0x0000000000c7b7da), 0.660, 0.780149145600000) \ + STEP( 133, UINT64_C(0x0000000000c9a34f), 0.665, 0.787648163618750) \ + STEP( 134, UINT64_C(0x0000000000cb878a), 0.670, 0.795036914200000) \ + STEP( 135, UINT64_C(0x0000000000cd6460), 0.675, 0.802312910156250) \ + STEP( 136, UINT64_C(0x0000000000cf39ab), 0.680, 0.809473740800000) \ + STEP( 137, UINT64_C(0x0000000000d10743), 0.685, 0.816517074193750) \ + STEP( 138, UINT64_C(0x0000000000d2cd01), 0.690, 0.823440659400000) \ + STEP( 139, UINT64_C(0x0000000000d48ac2), 0.695, 0.830242328731250) \ + STEP( 140, UINT64_C(0x0000000000d64063), 0.700, 0.836920000000000) \ + STEP( 141, UINT64_C(0x0000000000d7edc2), 0.705, 0.843471678768750) \ + STEP( 142, UINT64_C(0x0000000000d992bf), 0.710, 0.849895460600000) \ + STEP( 143, UINT64_C(0x0000000000db2f3c), 0.715, 0.856189533306250) \ + STEP( 144, UINT64_C(0x0000000000dcc31c), 0.720, 0.862352179200000) \ + STEP( 145, UINT64_C(0x0000000000de4e44), 0.725, 0.868381777343750) \ + STEP( 146, UINT64_C(0x0000000000dfd09a), 0.730, 0.874276805800000) \ + STEP( 147, UINT64_C(0x0000000000e14a07), 0.735, 0.880035843881250) \ + STEP( 148, UINT64_C(0x0000000000e2ba74), 0.740, 0.885657574400000) \ + STEP( 149, UINT64_C(0x0000000000e421cd), 0.745, 0.891140785918750) \ + STEP( 150, UINT64_C(0x0000000000e58000), 0.750, 0.896484375000000) \ + STEP( 151, UINT64_C(0x0000000000e6d4fb), 0.755, 0.901687348456250) \ + STEP( 152, UINT64_C(0x0000000000e820b0), 0.760, 0.906748825600000) \ + STEP( 153, UINT64_C(0x0000000000e96313), 0.765, 0.911668040493750) \ + STEP( 154, UINT64_C(0x0000000000ea9c18), 0.770, 0.916444344200000) \ + STEP( 155, UINT64_C(0x0000000000ebcbb7), 0.775, 0.921077207031250) \ + STEP( 156, UINT64_C(0x0000000000ecf1e8), 0.780, 0.925566220800000) \ + STEP( 157, UINT64_C(0x0000000000ee0ea7), 0.785, 0.929911101068750) \ + STEP( 158, UINT64_C(0x0000000000ef21f1), 0.790, 0.934111689400000) \ + STEP( 159, UINT64_C(0x0000000000f02bc6), 0.795, 0.938167955606250) \ + STEP( 160, UINT64_C(0x0000000000f12c27), 0.800, 0.942080000000000) \ + STEP( 161, UINT64_C(0x0000000000f22319), 0.805, 0.945848055643750) \ + STEP( 162, UINT64_C(0x0000000000f310a1), 0.810, 0.949472490600000) \ + STEP( 163, UINT64_C(0x0000000000f3f4c7), 0.815, 0.952953810181250) \ + STEP( 164, UINT64_C(0x0000000000f4cf98), 0.820, 0.956292659200000) \ + STEP( 165, UINT64_C(0x0000000000f5a120), 0.825, 0.959489824218750) \ + STEP( 166, UINT64_C(0x0000000000f6696e), 0.830, 0.962546235800000) \ + STEP( 167, UINT64_C(0x0000000000f72894), 0.835, 0.965462970756250) \ + STEP( 168, UINT64_C(0x0000000000f7dea8), 0.840, 0.968241254400000) \ + STEP( 169, UINT64_C(0x0000000000f88bc0), 0.845, 0.970882462793750) \ + STEP( 170, UINT64_C(0x0000000000f92ff6), 0.850, 0.973388125000000) \ + STEP( 171, UINT64_C(0x0000000000f9cb67), 0.855, 0.975759925331250) \ + STEP( 172, UINT64_C(0x0000000000fa5e30), 0.860, 0.977999705600000) \ + STEP( 173, UINT64_C(0x0000000000fae874), 0.865, 0.980109467368750) \ + STEP( 174, UINT64_C(0x0000000000fb6a57), 0.870, 0.982091374200000) \ + STEP( 175, UINT64_C(0x0000000000fbe400), 0.875, 0.983947753906250) \ + STEP( 176, UINT64_C(0x0000000000fc5598), 0.880, 0.985681100800000) \ + STEP( 177, UINT64_C(0x0000000000fcbf4e), 0.885, 0.987294077943750) \ + STEP( 178, UINT64_C(0x0000000000fd214f), 0.890, 0.988789519400000) \ + STEP( 179, UINT64_C(0x0000000000fd7bcf), 0.895, 0.990170432481250) \ + STEP( 180, UINT64_C(0x0000000000fdcf03), 0.900, 0.991440000000000) \ + STEP( 181, UINT64_C(0x0000000000fe1b23), 0.905, 0.992601582518750) \ + STEP( 182, UINT64_C(0x0000000000fe606a), 0.910, 0.993658720600000) \ + STEP( 183, UINT64_C(0x0000000000fe9f18), 0.915, 0.994615137056250) \ + STEP( 184, UINT64_C(0x0000000000fed76e), 0.920, 0.995474739200000) \ + STEP( 185, UINT64_C(0x0000000000ff09b0), 0.925, 0.996241621093750) \ + STEP( 186, UINT64_C(0x0000000000ff3627), 0.930, 0.996920065800000) \ + STEP( 187, UINT64_C(0x0000000000ff5d1d), 0.935, 0.997514547631250) \ + STEP( 188, UINT64_C(0x0000000000ff7ee0), 0.940, 0.998029734400000) \ + STEP( 189, UINT64_C(0x0000000000ff9bc3), 0.945, 0.998470489668750) \ + STEP( 190, UINT64_C(0x0000000000ffb419), 0.950, 0.998841875000000) \ + STEP( 191, UINT64_C(0x0000000000ffc83d), 0.955, 0.999149152206250) \ + STEP( 192, UINT64_C(0x0000000000ffd888), 0.960, 0.999397785600000) \ + STEP( 193, UINT64_C(0x0000000000ffe55b), 0.965, 0.999593444243750) \ + STEP( 194, UINT64_C(0x0000000000ffef17), 0.970, 0.999742004200000) \ + STEP( 195, UINT64_C(0x0000000000fff623), 0.975, 0.999849550781250) \ + STEP( 196, UINT64_C(0x0000000000fffae9), 0.980, 0.999922380800000) \ + STEP( 197, UINT64_C(0x0000000000fffdd6), 0.985, 0.999967004818750) \ + STEP( 198, UINT64_C(0x0000000000ffff5a), 0.990, 0.999990149400000) \ + STEP( 199, UINT64_C(0x0000000000ffffeb), 0.995, 0.999998759356250) \ + STEP( 200, UINT64_C(0x0000000001000000), 1.000, 1.000000000000000) \ + +#endif /* JEMALLOC_INTERNAL_SMOOTHSTEP_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/smoothstep.sh b/deps/jemalloc/include/jemalloc/internal/smoothstep.sh new file mode 100755 index 0000000..65de97b --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/smoothstep.sh @@ -0,0 +1,101 @@ +#!/bin/sh +# +# Generate a discrete lookup table for a sigmoid function in the smoothstep +# family (https://en.wikipedia.org/wiki/Smoothstep), where the lookup table +# entries correspond to x in [1/nsteps, 2/nsteps, ..., nsteps/nsteps]. Encode +# the entries using a binary fixed point representation. +# +# Usage: smoothstep.sh <variant> <nsteps> <bfp> <xprec> <yprec> +# +# <variant> is in {smooth, smoother, smoothest}. +# <nsteps> must be greater than zero. +# <bfp> must be in [0..62]; reasonable values are roughly [10..30]. +# <xprec> is x decimal precision. +# <yprec> is y decimal precision. + +#set -x + +cmd="sh smoothstep.sh $*" +variant=$1 +nsteps=$2 +bfp=$3 +xprec=$4 +yprec=$5 + +case "${variant}" in + smooth) + ;; + smoother) + ;; + smoothest) + ;; + *) + echo "Unsupported variant" + exit 1 + ;; +esac + +smooth() { + step=$1 + y=`echo ${yprec} k ${step} ${nsteps} / sx _2 lx 3 ^ '*' 3 lx 2 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'` + h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' ` +} + +smoother() { + step=$1 + y=`echo ${yprec} k ${step} ${nsteps} / sx 6 lx 5 ^ '*' _15 lx 4 ^ '*' + 10 lx 3 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'` + h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' ` +} + +smoothest() { + step=$1 + y=`echo ${yprec} k ${step} ${nsteps} / sx _20 lx 7 ^ '*' 70 lx 6 ^ '*' + _84 lx 5 ^ '*' + 35 lx 4 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'` + h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' ` +} + +cat <<EOF +#ifndef JEMALLOC_INTERNAL_SMOOTHSTEP_H +#define JEMALLOC_INTERNAL_SMOOTHSTEP_H + +/* + * This file was generated by the following command: + * $cmd + */ +/******************************************************************************/ + +/* + * This header defines a precomputed table based on the smoothstep family of + * sigmoidal curves (https://en.wikipedia.org/wiki/Smoothstep) that grow from 0 + * to 1 in 0 <= x <= 1. The table is stored as integer fixed point values so + * that floating point math can be avoided. + * + * 3 2 + * smoothstep(x) = -2x + 3x + * + * 5 4 3 + * smootherstep(x) = 6x - 15x + 10x + * + * 7 6 5 4 + * smootheststep(x) = -20x + 70x - 84x + 35x + */ + +#define SMOOTHSTEP_VARIANT "${variant}" +#define SMOOTHSTEP_NSTEPS ${nsteps} +#define SMOOTHSTEP_BFP ${bfp} +#define SMOOTHSTEP \\ + /* STEP(step, h, x, y) */ \\ +EOF + +s=1 +while [ $s -le $nsteps ] ; do + $variant ${s} + x=`echo ${xprec} k ${s} ${nsteps} / p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'` + printf ' STEP(%4d, UINT64_C(0x%016x), %s, %s) \\\n' ${s} ${h} ${x} ${y} + + s=$((s+1)) +done +echo + +cat <<EOF +#endif /* JEMALLOC_INTERNAL_SMOOTHSTEP_H */ +EOF diff --git a/deps/jemalloc/include/jemalloc/internal/spin.h b/deps/jemalloc/include/jemalloc/internal/spin.h new file mode 100644 index 0000000..22804c6 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/spin.h @@ -0,0 +1,40 @@ +#ifndef JEMALLOC_INTERNAL_SPIN_H +#define JEMALLOC_INTERNAL_SPIN_H + +#define SPIN_INITIALIZER {0U} + +typedef struct { + unsigned iteration; +} spin_t; + +static inline void +spin_cpu_spinwait() { +# if HAVE_CPU_SPINWAIT + CPU_SPINWAIT; +# else + volatile int x = 0; + x = x; +# endif +} + +static inline void +spin_adaptive(spin_t *spin) { + volatile uint32_t i; + + if (spin->iteration < 5) { + for (i = 0; i < (1U << spin->iteration); i++) { + spin_cpu_spinwait(); + } + spin->iteration++; + } else { +#ifdef _WIN32 + SwitchToThread(); +#else + sched_yield(); +#endif + } +} + +#undef SPIN_INLINE + +#endif /* JEMALLOC_INTERNAL_SPIN_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/stats.h b/deps/jemalloc/include/jemalloc/internal/stats.h new file mode 100644 index 0000000..727f7dc --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/stats.h @@ -0,0 +1,54 @@ +#ifndef JEMALLOC_INTERNAL_STATS_H +#define JEMALLOC_INTERNAL_STATS_H + +/* OPTION(opt, var_name, default, set_value_to) */ +#define STATS_PRINT_OPTIONS \ + OPTION('J', json, false, true) \ + OPTION('g', general, true, false) \ + OPTION('m', merged, config_stats, false) \ + OPTION('d', destroyed, config_stats, false) \ + OPTION('a', unmerged, config_stats, false) \ + OPTION('b', bins, true, false) \ + OPTION('l', large, true, false) \ + OPTION('x', mutex, true, false) \ + OPTION('e', extents, true, false) \ + OPTION('h', hpa, config_stats, false) + +enum { +#define OPTION(o, v, d, s) stats_print_option_num_##v, + STATS_PRINT_OPTIONS +#undef OPTION + stats_print_tot_num_options +}; + +/* Options for stats_print. */ +extern bool opt_stats_print; +extern char opt_stats_print_opts[stats_print_tot_num_options+1]; + +/* Utilities for stats_interval. */ +extern int64_t opt_stats_interval; +extern char opt_stats_interval_opts[stats_print_tot_num_options+1]; + +#define STATS_INTERVAL_DEFAULT -1 +/* + * Batch-increment the counter to reduce synchronization overhead. Each thread + * merges after (interval >> LG_BATCH_SIZE) bytes of allocations; also limit the + * BATCH_MAX for accuracy when the interval is huge (which is expected). + */ +#define STATS_INTERVAL_ACCUM_LG_BATCH_SIZE 6 +#define STATS_INTERVAL_ACCUM_BATCH_MAX (4 << 20) + +/* Only accessed by thread event. */ +uint64_t stats_interval_new_event_wait(tsd_t *tsd); +uint64_t stats_interval_postponed_event_wait(tsd_t *tsd); +void stats_interval_event_handler(tsd_t *tsd, uint64_t elapsed); + +/* Implements je_malloc_stats_print. */ +void stats_print(write_cb_t *write_cb, void *cbopaque, const char *opts); + +bool stats_boot(void); +void stats_prefork(tsdn_t *tsdn); +void stats_postfork_parent(tsdn_t *tsdn); +void stats_postfork_child(tsdn_t *tsdn); + +#endif /* JEMALLOC_INTERNAL_STATS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/sz.h b/deps/jemalloc/include/jemalloc/internal/sz.h new file mode 100644 index 0000000..3c0fc1d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/sz.h @@ -0,0 +1,371 @@ +#ifndef JEMALLOC_INTERNAL_SIZE_H +#define JEMALLOC_INTERNAL_SIZE_H + +#include "jemalloc/internal/bit_util.h" +#include "jemalloc/internal/pages.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/util.h" + +/* + * sz module: Size computations. + * + * Some abbreviations used here: + * p: Page + * ind: Index + * s, sz: Size + * u: Usable size + * a: Aligned + * + * These are not always used completely consistently, but should be enough to + * interpret function names. E.g. sz_psz2ind converts page size to page size + * index; sz_sa2u converts a (size, alignment) allocation request to the usable + * size that would result from such an allocation. + */ + +/* Page size index type. */ +typedef unsigned pszind_t; + +/* Size class index type. */ +typedef unsigned szind_t; + +/* + * sz_pind2sz_tab encodes the same information as could be computed by + * sz_pind2sz_compute(). + */ +extern size_t sz_pind2sz_tab[SC_NPSIZES + 1]; +/* + * sz_index2size_tab encodes the same information as could be computed (at + * unacceptable cost in some code paths) by sz_index2size_compute(). + */ +extern size_t sz_index2size_tab[SC_NSIZES]; +/* + * sz_size2index_tab is a compact lookup table that rounds request sizes up to + * size classes. In order to reduce cache footprint, the table is compressed, + * and all accesses are via sz_size2index(). + */ +extern uint8_t sz_size2index_tab[]; + +/* + * Padding for large allocations: PAGE when opt_cache_oblivious == true (to + * enable cache index randomization); 0 otherwise. + */ +extern size_t sz_large_pad; + +extern void sz_boot(const sc_data_t *sc_data, bool cache_oblivious); + +JEMALLOC_ALWAYS_INLINE pszind_t +sz_psz2ind(size_t psz) { + assert(psz > 0); + if (unlikely(psz > SC_LARGE_MAXCLASS)) { + return SC_NPSIZES; + } + /* x is the lg of the first base >= psz. */ + pszind_t x = lg_ceil(psz); + /* + * sc.h introduces a lot of size classes. These size classes are divided + * into different size class groups. There is a very special size class + * group, each size class in or after it is an integer multiple of PAGE. + * We call it first_ps_rg. It means first page size regular group. The + * range of first_ps_rg is (base, base * 2], and base == PAGE * + * SC_NGROUP. off_to_first_ps_rg begins from 1, instead of 0. e.g. + * off_to_first_ps_rg is 1 when psz is (PAGE * SC_NGROUP + 1). + */ + pszind_t off_to_first_ps_rg = (x < SC_LG_NGROUP + LG_PAGE) ? + 0 : x - (SC_LG_NGROUP + LG_PAGE); + + /* + * Same as sc_s::lg_delta. + * Delta for off_to_first_ps_rg == 1 is PAGE, + * for each increase in offset, it's multiplied by two. + * Therefore, lg_delta = LG_PAGE + (off_to_first_ps_rg - 1). + */ + pszind_t lg_delta = (off_to_first_ps_rg == 0) ? + LG_PAGE : LG_PAGE + (off_to_first_ps_rg - 1); + + /* + * Let's write psz in binary, e.g. 0011 for 0x3, 0111 for 0x7. + * The leftmost bits whose len is lg_base decide the base of psz. + * The rightmost bits whose len is lg_delta decide (pgz % PAGE). + * The middle bits whose len is SC_LG_NGROUP decide ndelta. + * ndelta is offset to the first size class in the size class group, + * starts from 1. + * If you don't know lg_base, ndelta or lg_delta, see sc.h. + * |xxxxxxxxxxxxxxxxxxxx|------------------------|yyyyyyyyyyyyyyyyyyyyy| + * |<-- len: lg_base -->|<-- len: SC_LG_NGROUP-->|<-- len: lg_delta -->| + * |<-- ndelta -->| + * rg_inner_off = ndelta - 1 + * Why use (psz - 1)? + * To handle case: psz % (1 << lg_delta) == 0. + */ + pszind_t rg_inner_off = (((psz - 1)) >> lg_delta) & (SC_NGROUP - 1); + + pszind_t base_ind = off_to_first_ps_rg << SC_LG_NGROUP; + pszind_t ind = base_ind + rg_inner_off; + return ind; +} + +static inline size_t +sz_pind2sz_compute(pszind_t pind) { + if (unlikely(pind == SC_NPSIZES)) { + return SC_LARGE_MAXCLASS + PAGE; + } + size_t grp = pind >> SC_LG_NGROUP; + size_t mod = pind & ((ZU(1) << SC_LG_NGROUP) - 1); + + size_t grp_size_mask = ~((!!grp)-1); + size_t grp_size = ((ZU(1) << (LG_PAGE + (SC_LG_NGROUP-1))) << grp) + & grp_size_mask; + + size_t shift = (grp == 0) ? 1 : grp; + size_t lg_delta = shift + (LG_PAGE-1); + size_t mod_size = (mod+1) << lg_delta; + + size_t sz = grp_size + mod_size; + return sz; +} + +static inline size_t +sz_pind2sz_lookup(pszind_t pind) { + size_t ret = (size_t)sz_pind2sz_tab[pind]; + assert(ret == sz_pind2sz_compute(pind)); + return ret; +} + +static inline size_t +sz_pind2sz(pszind_t pind) { + assert(pind < SC_NPSIZES + 1); + return sz_pind2sz_lookup(pind); +} + +static inline size_t +sz_psz2u(size_t psz) { + if (unlikely(psz > SC_LARGE_MAXCLASS)) { + return SC_LARGE_MAXCLASS + PAGE; + } + size_t x = lg_floor((psz<<1)-1); + size_t lg_delta = (x < SC_LG_NGROUP + LG_PAGE + 1) ? + LG_PAGE : x - SC_LG_NGROUP - 1; + size_t delta = ZU(1) << lg_delta; + size_t delta_mask = delta - 1; + size_t usize = (psz + delta_mask) & ~delta_mask; + return usize; +} + +static inline szind_t +sz_size2index_compute(size_t size) { + if (unlikely(size > SC_LARGE_MAXCLASS)) { + return SC_NSIZES; + } + + if (size == 0) { + return 0; + } +#if (SC_NTINY != 0) + if (size <= (ZU(1) << SC_LG_TINY_MAXCLASS)) { + szind_t lg_tmin = SC_LG_TINY_MAXCLASS - SC_NTINY + 1; + szind_t lg_ceil = lg_floor(pow2_ceil_zu(size)); + return (lg_ceil < lg_tmin ? 0 : lg_ceil - lg_tmin); + } +#endif + { + szind_t x = lg_floor((size<<1)-1); + szind_t shift = (x < SC_LG_NGROUP + LG_QUANTUM) ? 0 : + x - (SC_LG_NGROUP + LG_QUANTUM); + szind_t grp = shift << SC_LG_NGROUP; + + szind_t lg_delta = (x < SC_LG_NGROUP + LG_QUANTUM + 1) + ? LG_QUANTUM : x - SC_LG_NGROUP - 1; + + size_t delta_inverse_mask = ZU(-1) << lg_delta; + szind_t mod = ((((size-1) & delta_inverse_mask) >> lg_delta)) & + ((ZU(1) << SC_LG_NGROUP) - 1); + + szind_t index = SC_NTINY + grp + mod; + return index; + } +} + +JEMALLOC_ALWAYS_INLINE szind_t +sz_size2index_lookup_impl(size_t size) { + assert(size <= SC_LOOKUP_MAXCLASS); + return sz_size2index_tab[(size + (ZU(1) << SC_LG_TINY_MIN) - 1) + >> SC_LG_TINY_MIN]; +} + +JEMALLOC_ALWAYS_INLINE szind_t +sz_size2index_lookup(size_t size) { + szind_t ret = sz_size2index_lookup_impl(size); + assert(ret == sz_size2index_compute(size)); + return ret; +} + +JEMALLOC_ALWAYS_INLINE szind_t +sz_size2index(size_t size) { + if (likely(size <= SC_LOOKUP_MAXCLASS)) { + return sz_size2index_lookup(size); + } + return sz_size2index_compute(size); +} + +static inline size_t +sz_index2size_compute(szind_t index) { +#if (SC_NTINY > 0) + if (index < SC_NTINY) { + return (ZU(1) << (SC_LG_TINY_MAXCLASS - SC_NTINY + 1 + index)); + } +#endif + { + size_t reduced_index = index - SC_NTINY; + size_t grp = reduced_index >> SC_LG_NGROUP; + size_t mod = reduced_index & ((ZU(1) << SC_LG_NGROUP) - + 1); + + size_t grp_size_mask = ~((!!grp)-1); + size_t grp_size = ((ZU(1) << (LG_QUANTUM + + (SC_LG_NGROUP-1))) << grp) & grp_size_mask; + + size_t shift = (grp == 0) ? 1 : grp; + size_t lg_delta = shift + (LG_QUANTUM-1); + size_t mod_size = (mod+1) << lg_delta; + + size_t usize = grp_size + mod_size; + return usize; + } +} + +JEMALLOC_ALWAYS_INLINE size_t +sz_index2size_lookup_impl(szind_t index) { + return sz_index2size_tab[index]; +} + +JEMALLOC_ALWAYS_INLINE size_t +sz_index2size_lookup(szind_t index) { + size_t ret = sz_index2size_lookup_impl(index); + assert(ret == sz_index2size_compute(index)); + return ret; +} + +JEMALLOC_ALWAYS_INLINE size_t +sz_index2size(szind_t index) { + assert(index < SC_NSIZES); + return sz_index2size_lookup(index); +} + +JEMALLOC_ALWAYS_INLINE void +sz_size2index_usize_fastpath(size_t size, szind_t *ind, size_t *usize) { + *ind = sz_size2index_lookup_impl(size); + *usize = sz_index2size_lookup_impl(*ind); +} + +JEMALLOC_ALWAYS_INLINE size_t +sz_s2u_compute(size_t size) { + if (unlikely(size > SC_LARGE_MAXCLASS)) { + return 0; + } + + if (size == 0) { + size++; + } +#if (SC_NTINY > 0) + if (size <= (ZU(1) << SC_LG_TINY_MAXCLASS)) { + size_t lg_tmin = SC_LG_TINY_MAXCLASS - SC_NTINY + 1; + size_t lg_ceil = lg_floor(pow2_ceil_zu(size)); + return (lg_ceil < lg_tmin ? (ZU(1) << lg_tmin) : + (ZU(1) << lg_ceil)); + } +#endif + { + size_t x = lg_floor((size<<1)-1); + size_t lg_delta = (x < SC_LG_NGROUP + LG_QUANTUM + 1) + ? LG_QUANTUM : x - SC_LG_NGROUP - 1; + size_t delta = ZU(1) << lg_delta; + size_t delta_mask = delta - 1; + size_t usize = (size + delta_mask) & ~delta_mask; + return usize; + } +} + +JEMALLOC_ALWAYS_INLINE size_t +sz_s2u_lookup(size_t size) { + size_t ret = sz_index2size_lookup(sz_size2index_lookup(size)); + + assert(ret == sz_s2u_compute(size)); + return ret; +} + +/* + * Compute usable size that would result from allocating an object with the + * specified size. + */ +JEMALLOC_ALWAYS_INLINE size_t +sz_s2u(size_t size) { + if (likely(size <= SC_LOOKUP_MAXCLASS)) { + return sz_s2u_lookup(size); + } + return sz_s2u_compute(size); +} + +/* + * Compute usable size that would result from allocating an object with the + * specified size and alignment. + */ +JEMALLOC_ALWAYS_INLINE size_t +sz_sa2u(size_t size, size_t alignment) { + size_t usize; + + assert(alignment != 0 && ((alignment - 1) & alignment) == 0); + + /* Try for a small size class. */ + if (size <= SC_SMALL_MAXCLASS && alignment <= PAGE) { + /* + * Round size up to the nearest multiple of alignment. + * + * This done, we can take advantage of the fact that for each + * small size class, every object is aligned at the smallest + * power of two that is non-zero in the base two representation + * of the size. For example: + * + * Size | Base 2 | Minimum alignment + * -----+----------+------------------ + * 96 | 1100000 | 32 + * 144 | 10100000 | 32 + * 192 | 11000000 | 64 + */ + usize = sz_s2u(ALIGNMENT_CEILING(size, alignment)); + if (usize < SC_LARGE_MINCLASS) { + return usize; + } + } + + /* Large size class. Beware of overflow. */ + + if (unlikely(alignment > SC_LARGE_MAXCLASS)) { + return 0; + } + + /* Make sure result is a large size class. */ + if (size <= SC_LARGE_MINCLASS) { + usize = SC_LARGE_MINCLASS; + } else { + usize = sz_s2u(size); + if (usize < size) { + /* size_t overflow. */ + return 0; + } + } + + /* + * Calculate the multi-page mapping that large_palloc() would need in + * order to guarantee the alignment. + */ + if (usize + sz_large_pad + PAGE_CEILING(alignment) - PAGE < usize) { + /* size_t overflow. */ + return 0; + } + return usize; +} + +size_t sz_psz_quantize_floor(size_t size); +size_t sz_psz_quantize_ceil(size_t size); + +#endif /* JEMALLOC_INTERNAL_SIZE_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tcache_externs.h b/deps/jemalloc/include/jemalloc/internal/tcache_externs.h new file mode 100644 index 0000000..a2ab710 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tcache_externs.h @@ -0,0 +1,75 @@ +#ifndef JEMALLOC_INTERNAL_TCACHE_EXTERNS_H +#define JEMALLOC_INTERNAL_TCACHE_EXTERNS_H + +extern bool opt_tcache; +extern size_t opt_tcache_max; +extern ssize_t opt_lg_tcache_nslots_mul; +extern unsigned opt_tcache_nslots_small_min; +extern unsigned opt_tcache_nslots_small_max; +extern unsigned opt_tcache_nslots_large; +extern ssize_t opt_lg_tcache_shift; +extern size_t opt_tcache_gc_incr_bytes; +extern size_t opt_tcache_gc_delay_bytes; +extern unsigned opt_lg_tcache_flush_small_div; +extern unsigned opt_lg_tcache_flush_large_div; + +/* + * Number of tcache bins. There are SC_NBINS small-object bins, plus 0 or more + * large-object bins. + */ +extern unsigned nhbins; + +/* Maximum cached size class. */ +extern size_t tcache_maxclass; + +extern cache_bin_info_t *tcache_bin_info; + +/* + * Explicit tcaches, managed via the tcache.{create,flush,destroy} mallctls and + * usable via the MALLOCX_TCACHE() flag. The automatic per thread tcaches are + * completely disjoint from this data structure. tcaches starts off as a sparse + * array, so it has no physical memory footprint until individual pages are + * touched. This allows the entire array to be allocated the first time an + * explicit tcache is created without a disproportionate impact on memory usage. + */ +extern tcaches_t *tcaches; + +size_t tcache_salloc(tsdn_t *tsdn, const void *ptr); +void *tcache_alloc_small_hard(tsdn_t *tsdn, arena_t *arena, tcache_t *tcache, + cache_bin_t *tbin, szind_t binind, bool *tcache_success); + +void tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, cache_bin_t *tbin, + szind_t binind, unsigned rem); +void tcache_bin_flush_large(tsd_t *tsd, tcache_t *tcache, cache_bin_t *tbin, + szind_t binind, unsigned rem); +void tcache_bin_flush_stashed(tsd_t *tsd, tcache_t *tcache, cache_bin_t *bin, + szind_t binind, bool is_small); +void tcache_arena_reassociate(tsdn_t *tsdn, tcache_slow_t *tcache_slow, + tcache_t *tcache, arena_t *arena); +tcache_t *tcache_create_explicit(tsd_t *tsd); +void tcache_cleanup(tsd_t *tsd); +void tcache_stats_merge(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena); +bool tcaches_create(tsd_t *tsd, base_t *base, unsigned *r_ind); +void tcaches_flush(tsd_t *tsd, unsigned ind); +void tcaches_destroy(tsd_t *tsd, unsigned ind); +bool tcache_boot(tsdn_t *tsdn, base_t *base); +void tcache_arena_associate(tsdn_t *tsdn, tcache_slow_t *tcache_slow, + tcache_t *tcache, arena_t *arena); +void tcache_prefork(tsdn_t *tsdn); +void tcache_postfork_parent(tsdn_t *tsdn); +void tcache_postfork_child(tsdn_t *tsdn); +void tcache_flush(tsd_t *tsd); +bool tsd_tcache_data_init(tsd_t *tsd); +bool tsd_tcache_enabled_data_init(tsd_t *tsd); + +void tcache_assert_initialized(tcache_t *tcache); + +/* Only accessed by thread event. */ +uint64_t tcache_gc_new_event_wait(tsd_t *tsd); +uint64_t tcache_gc_postponed_event_wait(tsd_t *tsd); +void tcache_gc_event_handler(tsd_t *tsd, uint64_t elapsed); +uint64_t tcache_gc_dalloc_new_event_wait(tsd_t *tsd); +uint64_t tcache_gc_dalloc_postponed_event_wait(tsd_t *tsd); +void tcache_gc_dalloc_event_handler(tsd_t *tsd, uint64_t elapsed); + +#endif /* JEMALLOC_INTERNAL_TCACHE_EXTERNS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tcache_inlines.h b/deps/jemalloc/include/jemalloc/internal/tcache_inlines.h new file mode 100644 index 0000000..2634f14 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tcache_inlines.h @@ -0,0 +1,193 @@ +#ifndef JEMALLOC_INTERNAL_TCACHE_INLINES_H +#define JEMALLOC_INTERNAL_TCACHE_INLINES_H + +#include "jemalloc/internal/bin.h" +#include "jemalloc/internal/jemalloc_internal_types.h" +#include "jemalloc/internal/san.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/sz.h" +#include "jemalloc/internal/util.h" + +static inline bool +tcache_enabled_get(tsd_t *tsd) { + return tsd_tcache_enabled_get(tsd); +} + +static inline void +tcache_enabled_set(tsd_t *tsd, bool enabled) { + bool was_enabled = tsd_tcache_enabled_get(tsd); + + if (!was_enabled && enabled) { + tsd_tcache_data_init(tsd); + } else if (was_enabled && !enabled) { + tcache_cleanup(tsd); + } + /* Commit the state last. Above calls check current state. */ + tsd_tcache_enabled_set(tsd, enabled); + tsd_slow_update(tsd); +} + +JEMALLOC_ALWAYS_INLINE bool +tcache_small_bin_disabled(szind_t ind, cache_bin_t *bin) { + assert(ind < SC_NBINS); + bool ret = (cache_bin_info_ncached_max(&tcache_bin_info[ind]) == 0); + if (ret && bin != NULL) { + /* small size class but cache bin disabled. */ + assert(ind >= nhbins); + assert((uintptr_t)(*bin->stack_head) == + cache_bin_preceding_junk); + } + + return ret; +} + +JEMALLOC_ALWAYS_INLINE void * +tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache, + size_t size, szind_t binind, bool zero, bool slow_path) { + void *ret; + bool tcache_success; + + assert(binind < SC_NBINS); + cache_bin_t *bin = &tcache->bins[binind]; + ret = cache_bin_alloc(bin, &tcache_success); + assert(tcache_success == (ret != NULL)); + if (unlikely(!tcache_success)) { + bool tcache_hard_success; + arena = arena_choose(tsd, arena); + if (unlikely(arena == NULL)) { + return NULL; + } + if (unlikely(tcache_small_bin_disabled(binind, bin))) { + /* stats and zero are handled directly by the arena. */ + return arena_malloc_hard(tsd_tsdn(tsd), arena, size, + binind, zero); + } + tcache_bin_flush_stashed(tsd, tcache, bin, binind, + /* is_small */ true); + + ret = tcache_alloc_small_hard(tsd_tsdn(tsd), arena, tcache, + bin, binind, &tcache_hard_success); + if (tcache_hard_success == false) { + return NULL; + } + } + + assert(ret); + if (unlikely(zero)) { + size_t usize = sz_index2size(binind); + assert(tcache_salloc(tsd_tsdn(tsd), ret) == usize); + memset(ret, 0, usize); + } + if (config_stats) { + bin->tstats.nrequests++; + } + return ret; +} + +JEMALLOC_ALWAYS_INLINE void * +tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size, + szind_t binind, bool zero, bool slow_path) { + void *ret; + bool tcache_success; + + assert(binind >= SC_NBINS && binind < nhbins); + cache_bin_t *bin = &tcache->bins[binind]; + ret = cache_bin_alloc(bin, &tcache_success); + assert(tcache_success == (ret != NULL)); + if (unlikely(!tcache_success)) { + /* + * Only allocate one large object at a time, because it's quite + * expensive to create one and not use it. + */ + arena = arena_choose(tsd, arena); + if (unlikely(arena == NULL)) { + return NULL; + } + tcache_bin_flush_stashed(tsd, tcache, bin, binind, + /* is_small */ false); + + ret = large_malloc(tsd_tsdn(tsd), arena, sz_s2u(size), zero); + if (ret == NULL) { + return NULL; + } + } else { + if (unlikely(zero)) { + size_t usize = sz_index2size(binind); + assert(usize <= tcache_maxclass); + memset(ret, 0, usize); + } + + if (config_stats) { + bin->tstats.nrequests++; + } + } + + return ret; +} + +JEMALLOC_ALWAYS_INLINE void +tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind, + bool slow_path) { + assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= SC_SMALL_MAXCLASS); + + cache_bin_t *bin = &tcache->bins[binind]; + /* + * Not marking the branch unlikely because this is past free_fastpath() + * (which handles the most common cases), i.e. at this point it's often + * uncommon cases. + */ + if (cache_bin_nonfast_aligned(ptr)) { + /* Junk unconditionally, even if bin is full. */ + san_junk_ptr(ptr, sz_index2size(binind)); + if (cache_bin_stash(bin, ptr)) { + return; + } + assert(cache_bin_full(bin)); + /* Bin full; fall through into the flush branch. */ + } + + if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) { + if (unlikely(tcache_small_bin_disabled(binind, bin))) { + arena_dalloc_small(tsd_tsdn(tsd), ptr); + return; + } + cache_bin_sz_t max = cache_bin_info_ncached_max( + &tcache_bin_info[binind]); + unsigned remain = max >> opt_lg_tcache_flush_small_div; + tcache_bin_flush_small(tsd, tcache, bin, binind, remain); + bool ret = cache_bin_dalloc_easy(bin, ptr); + assert(ret); + } +} + +JEMALLOC_ALWAYS_INLINE void +tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind, + bool slow_path) { + + assert(tcache_salloc(tsd_tsdn(tsd), ptr) + > SC_SMALL_MAXCLASS); + assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= tcache_maxclass); + + cache_bin_t *bin = &tcache->bins[binind]; + if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) { + unsigned remain = cache_bin_info_ncached_max( + &tcache_bin_info[binind]) >> opt_lg_tcache_flush_large_div; + tcache_bin_flush_large(tsd, tcache, bin, binind, remain); + bool ret = cache_bin_dalloc_easy(bin, ptr); + assert(ret); + } +} + +JEMALLOC_ALWAYS_INLINE tcache_t * +tcaches_get(tsd_t *tsd, unsigned ind) { + tcaches_t *elm = &tcaches[ind]; + if (unlikely(elm->tcache == NULL)) { + malloc_printf("<jemalloc>: invalid tcache id (%u).\n", ind); + abort(); + } else if (unlikely(elm->tcache == TCACHES_ELM_NEED_REINIT)) { + elm->tcache = tcache_create_explicit(tsd); + } + return elm->tcache; +} + +#endif /* JEMALLOC_INTERNAL_TCACHE_INLINES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tcache_structs.h b/deps/jemalloc/include/jemalloc/internal/tcache_structs.h new file mode 100644 index 0000000..176d73d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tcache_structs.h @@ -0,0 +1,68 @@ +#ifndef JEMALLOC_INTERNAL_TCACHE_STRUCTS_H +#define JEMALLOC_INTERNAL_TCACHE_STRUCTS_H + +#include "jemalloc/internal/cache_bin.h" +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/sc.h" +#include "jemalloc/internal/ticker.h" +#include "jemalloc/internal/tsd_types.h" + +/* + * The tcache state is split into the slow and hot path data. Each has a + * pointer to the other, and the data always comes in pairs. The layout of each + * of them varies in practice; tcache_slow lives in the TSD for the automatic + * tcache, and as part of a dynamic allocation for manual allocations. Keeping + * a pointer to tcache_slow lets us treat these cases uniformly, rather than + * splitting up the tcache [de]allocation code into those paths called with the + * TSD tcache and those called with a manual tcache. + */ + +struct tcache_slow_s { + /* Lets us track all the tcaches in an arena. */ + ql_elm(tcache_slow_t) link; + + /* + * The descriptor lets the arena find our cache bins without seeing the + * tcache definition. This enables arenas to aggregate stats across + * tcaches without having a tcache dependency. + */ + cache_bin_array_descriptor_t cache_bin_array_descriptor; + + /* The arena this tcache is associated with. */ + arena_t *arena; + /* Next bin to GC. */ + szind_t next_gc_bin; + /* For small bins, fill (ncached_max >> lg_fill_div). */ + uint8_t lg_fill_div[SC_NBINS]; + /* For small bins, whether has been refilled since last GC. */ + bool bin_refilled[SC_NBINS]; + /* + * For small bins, the number of items we can pretend to flush before + * actually flushing. + */ + uint8_t bin_flush_delay_items[SC_NBINS]; + /* + * The start of the allocation containing the dynamic allocation for + * either the cache bins alone, or the cache bin memory as well as this + * tcache_slow_t and its associated tcache_t. + */ + void *dyn_alloc; + + /* The associated bins. */ + tcache_t *tcache; +}; + +struct tcache_s { + tcache_slow_t *tcache_slow; + cache_bin_t bins[TCACHE_NBINS_MAX]; +}; + +/* Linkage for list of available (previously used) explicit tcache IDs. */ +struct tcaches_s { + union { + tcache_t *tcache; + tcaches_t *next; + }; +}; + +#endif /* JEMALLOC_INTERNAL_TCACHE_STRUCTS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tcache_types.h b/deps/jemalloc/include/jemalloc/internal/tcache_types.h new file mode 100644 index 0000000..583677e --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tcache_types.h @@ -0,0 +1,35 @@ +#ifndef JEMALLOC_INTERNAL_TCACHE_TYPES_H +#define JEMALLOC_INTERNAL_TCACHE_TYPES_H + +#include "jemalloc/internal/sc.h" + +typedef struct tcache_slow_s tcache_slow_t; +typedef struct tcache_s tcache_t; +typedef struct tcaches_s tcaches_t; + +/* + * tcache pointers close to NULL are used to encode state information that is + * used for two purposes: preventing thread caching on a per thread basis and + * cleaning up during thread shutdown. + */ +#define TCACHE_STATE_DISABLED ((tcache_t *)(uintptr_t)1) +#define TCACHE_STATE_REINCARNATED ((tcache_t *)(uintptr_t)2) +#define TCACHE_STATE_PURGATORY ((tcache_t *)(uintptr_t)3) +#define TCACHE_STATE_MAX TCACHE_STATE_PURGATORY + +/* Used in TSD static initializer only. Real init in tsd_tcache_data_init(). */ +#define TCACHE_ZERO_INITIALIZER {0} +#define TCACHE_SLOW_ZERO_INITIALIZER {0} + +/* Used in TSD static initializer only. Will be initialized to opt_tcache. */ +#define TCACHE_ENABLED_ZERO_INITIALIZER false + +/* Used for explicit tcache only. Means flushed but not destroyed. */ +#define TCACHES_ELM_NEED_REINIT ((tcache_t *)(uintptr_t)1) + +#define TCACHE_LG_MAXCLASS_LIMIT 23 /* tcache_maxclass = 8M */ +#define TCACHE_MAXCLASS_LIMIT ((size_t)1 << TCACHE_LG_MAXCLASS_LIMIT) +#define TCACHE_NBINS_MAX (SC_NBINS + SC_NGROUP * \ + (TCACHE_LG_MAXCLASS_LIMIT - SC_LG_LARGE_MINCLASS) + 1) + +#endif /* JEMALLOC_INTERNAL_TCACHE_TYPES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/test_hooks.h b/deps/jemalloc/include/jemalloc/internal/test_hooks.h new file mode 100644 index 0000000..3d530b5 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/test_hooks.h @@ -0,0 +1,24 @@ +#ifndef JEMALLOC_INTERNAL_TEST_HOOKS_H +#define JEMALLOC_INTERNAL_TEST_HOOKS_H + +extern JEMALLOC_EXPORT void (*test_hooks_arena_new_hook)(); +extern JEMALLOC_EXPORT void (*test_hooks_libc_hook)(); + +#if defined(JEMALLOC_JET) || defined(JEMALLOC_UNIT_TEST) +# define JEMALLOC_TEST_HOOK(fn, hook) ((void)(hook != NULL && (hook(), 0)), fn) + +# define open JEMALLOC_TEST_HOOK(open, test_hooks_libc_hook) +# define read JEMALLOC_TEST_HOOK(read, test_hooks_libc_hook) +# define write JEMALLOC_TEST_HOOK(write, test_hooks_libc_hook) +# define readlink JEMALLOC_TEST_HOOK(readlink, test_hooks_libc_hook) +# define close JEMALLOC_TEST_HOOK(close, test_hooks_libc_hook) +# define creat JEMALLOC_TEST_HOOK(creat, test_hooks_libc_hook) +# define secure_getenv JEMALLOC_TEST_HOOK(secure_getenv, test_hooks_libc_hook) +/* Note that this is undef'd and re-define'd in src/prof.c. */ +# define _Unwind_Backtrace JEMALLOC_TEST_HOOK(_Unwind_Backtrace, test_hooks_libc_hook) +#else +# define JEMALLOC_TEST_HOOK(fn, hook) fn +#endif + + +#endif /* JEMALLOC_INTERNAL_TEST_HOOKS_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/thread_event.h b/deps/jemalloc/include/jemalloc/internal/thread_event.h new file mode 100644 index 0000000..2f4e1b3 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/thread_event.h @@ -0,0 +1,301 @@ +#ifndef JEMALLOC_INTERNAL_THREAD_EVENT_H +#define JEMALLOC_INTERNAL_THREAD_EVENT_H + +#include "jemalloc/internal/tsd.h" + +/* "te" is short for "thread_event" */ + +/* + * TE_MIN_START_WAIT should not exceed the minimal allocation usize. + */ +#define TE_MIN_START_WAIT ((uint64_t)1U) +#define TE_MAX_START_WAIT UINT64_MAX + +/* + * Maximum threshold on thread_(de)allocated_next_event_fast, so that there is + * no need to check overflow in malloc fast path. (The allocation size in malloc + * fast path never exceeds SC_LOOKUP_MAXCLASS.) + */ +#define TE_NEXT_EVENT_FAST_MAX (UINT64_MAX - SC_LOOKUP_MAXCLASS + 1U) + +/* + * The max interval helps make sure that malloc stays on the fast path in the + * common case, i.e. thread_allocated < thread_allocated_next_event_fast. When + * thread_allocated is within an event's distance to TE_NEXT_EVENT_FAST_MAX + * above, thread_allocated_next_event_fast is wrapped around and we fall back to + * the medium-fast path. The max interval makes sure that we're not staying on + * the fallback case for too long, even if there's no active event or if all + * active events have long wait times. + */ +#define TE_MAX_INTERVAL ((uint64_t)(4U << 20)) + +/* + * Invalid elapsed time, for situations where elapsed time is not needed. See + * comments in thread_event.c for more info. + */ +#define TE_INVALID_ELAPSED UINT64_MAX + +typedef struct te_ctx_s { + bool is_alloc; + uint64_t *current; + uint64_t *last_event; + uint64_t *next_event; + uint64_t *next_event_fast; +} te_ctx_t; + +void te_assert_invariants_debug(tsd_t *tsd); +void te_event_trigger(tsd_t *tsd, te_ctx_t *ctx); +void te_recompute_fast_threshold(tsd_t *tsd); +void tsd_te_init(tsd_t *tsd); + +/* + * List of all events, in the following format: + * E(event, (condition), is_alloc_event) + */ +#define ITERATE_OVER_ALL_EVENTS \ + E(tcache_gc, (opt_tcache_gc_incr_bytes > 0), true) \ + E(prof_sample, (config_prof && opt_prof), true) \ + E(stats_interval, (opt_stats_interval >= 0), true) \ + E(tcache_gc_dalloc, (opt_tcache_gc_incr_bytes > 0), false) \ + E(peak_alloc, config_stats, true) \ + E(peak_dalloc, config_stats, false) + +#define E(event, condition_unused, is_alloc_event_unused) \ + C(event##_event_wait) + +/* List of all thread event counters. */ +#define ITERATE_OVER_ALL_COUNTERS \ + C(thread_allocated) \ + C(thread_allocated_last_event) \ + ITERATE_OVER_ALL_EVENTS \ + C(prof_sample_last_event) \ + C(stats_interval_last_event) + +/* Getters directly wrap TSD getters. */ +#define C(counter) \ +JEMALLOC_ALWAYS_INLINE uint64_t \ +counter##_get(tsd_t *tsd) { \ + return tsd_##counter##_get(tsd); \ +} + +ITERATE_OVER_ALL_COUNTERS +#undef C + +/* + * Setters call the TSD pointer getters rather than the TSD setters, so that + * the counters can be modified even when TSD state is reincarnated or + * minimal_initialized: if an event is triggered in such cases, we will + * temporarily delay the event and let it be immediately triggered at the next + * allocation call. + */ +#define C(counter) \ +JEMALLOC_ALWAYS_INLINE void \ +counter##_set(tsd_t *tsd, uint64_t v) { \ + *tsd_##counter##p_get(tsd) = v; \ +} + +ITERATE_OVER_ALL_COUNTERS +#undef C + +/* + * For generating _event_wait getter / setter functions for each individual + * event. + */ +#undef E + +/* + * The malloc and free fastpath getters -- use the unsafe getters since tsd may + * be non-nominal, in which case the fast_threshold will be set to 0. This + * allows checking for events and tsd non-nominal in a single branch. + * + * Note that these can only be used on the fastpath. + */ +JEMALLOC_ALWAYS_INLINE void +te_malloc_fastpath_ctx(tsd_t *tsd, uint64_t *allocated, uint64_t *threshold) { + *allocated = *tsd_thread_allocatedp_get_unsafe(tsd); + *threshold = *tsd_thread_allocated_next_event_fastp_get_unsafe(tsd); + assert(*threshold <= TE_NEXT_EVENT_FAST_MAX); +} + +JEMALLOC_ALWAYS_INLINE void +te_free_fastpath_ctx(tsd_t *tsd, uint64_t *deallocated, uint64_t *threshold) { + /* Unsafe getters since this may happen before tsd_init. */ + *deallocated = *tsd_thread_deallocatedp_get_unsafe(tsd); + *threshold = *tsd_thread_deallocated_next_event_fastp_get_unsafe(tsd); + assert(*threshold <= TE_NEXT_EVENT_FAST_MAX); +} + +JEMALLOC_ALWAYS_INLINE bool +te_ctx_is_alloc(te_ctx_t *ctx) { + return ctx->is_alloc; +} + +JEMALLOC_ALWAYS_INLINE uint64_t +te_ctx_current_bytes_get(te_ctx_t *ctx) { + return *ctx->current; +} + +JEMALLOC_ALWAYS_INLINE void +te_ctx_current_bytes_set(te_ctx_t *ctx, uint64_t v) { + *ctx->current = v; +} + +JEMALLOC_ALWAYS_INLINE uint64_t +te_ctx_last_event_get(te_ctx_t *ctx) { + return *ctx->last_event; +} + +JEMALLOC_ALWAYS_INLINE void +te_ctx_last_event_set(te_ctx_t *ctx, uint64_t v) { + *ctx->last_event = v; +} + +/* Below 3 for next_event_fast. */ +JEMALLOC_ALWAYS_INLINE uint64_t +te_ctx_next_event_fast_get(te_ctx_t *ctx) { + uint64_t v = *ctx->next_event_fast; + assert(v <= TE_NEXT_EVENT_FAST_MAX); + return v; +} + +JEMALLOC_ALWAYS_INLINE void +te_ctx_next_event_fast_set(te_ctx_t *ctx, uint64_t v) { + assert(v <= TE_NEXT_EVENT_FAST_MAX); + *ctx->next_event_fast = v; +} + +JEMALLOC_ALWAYS_INLINE void +te_next_event_fast_set_non_nominal(tsd_t *tsd) { + /* + * Set the fast thresholds to zero when tsd is non-nominal. Use the + * unsafe getter as this may get called during tsd init and clean up. + */ + *tsd_thread_allocated_next_event_fastp_get_unsafe(tsd) = 0; + *tsd_thread_deallocated_next_event_fastp_get_unsafe(tsd) = 0; +} + +/* For next_event. Setter also updates the fast threshold. */ +JEMALLOC_ALWAYS_INLINE uint64_t +te_ctx_next_event_get(te_ctx_t *ctx) { + return *ctx->next_event; +} + +JEMALLOC_ALWAYS_INLINE void +te_ctx_next_event_set(tsd_t *tsd, te_ctx_t *ctx, uint64_t v) { + *ctx->next_event = v; + te_recompute_fast_threshold(tsd); +} + +/* + * The function checks in debug mode whether the thread event counters are in + * a consistent state, which forms the invariants before and after each round + * of thread event handling that we can rely on and need to promise. + * The invariants are only temporarily violated in the middle of + * te_event_advance() if an event is triggered (the te_event_trigger() call at + * the end will restore the invariants). + */ +JEMALLOC_ALWAYS_INLINE void +te_assert_invariants(tsd_t *tsd) { + if (config_debug) { + te_assert_invariants_debug(tsd); + } +} + +JEMALLOC_ALWAYS_INLINE void +te_ctx_get(tsd_t *tsd, te_ctx_t *ctx, bool is_alloc) { + ctx->is_alloc = is_alloc; + if (is_alloc) { + ctx->current = tsd_thread_allocatedp_get(tsd); + ctx->last_event = tsd_thread_allocated_last_eventp_get(tsd); + ctx->next_event = tsd_thread_allocated_next_eventp_get(tsd); + ctx->next_event_fast = + tsd_thread_allocated_next_event_fastp_get(tsd); + } else { + ctx->current = tsd_thread_deallocatedp_get(tsd); + ctx->last_event = tsd_thread_deallocated_last_eventp_get(tsd); + ctx->next_event = tsd_thread_deallocated_next_eventp_get(tsd); + ctx->next_event_fast = + tsd_thread_deallocated_next_event_fastp_get(tsd); + } +} + +/* + * The lookahead functionality facilitates events to be able to lookahead, i.e. + * without touching the event counters, to determine whether an event would be + * triggered. The event counters are not advanced until the end of the + * allocation / deallocation calls, so the lookahead can be useful if some + * preparation work for some event must be done early in the allocation / + * deallocation calls. + * + * Currently only the profiling sampling event needs the lookahead + * functionality, so we don't yet define general purpose lookahead functions. + * + * Surplus is a terminology referring to the amount of bytes beyond what's + * needed for triggering an event, which can be a useful quantity to have in + * general when lookahead is being called. + */ + +JEMALLOC_ALWAYS_INLINE bool +te_prof_sample_event_lookahead_surplus(tsd_t *tsd, size_t usize, + size_t *surplus) { + if (surplus != NULL) { + /* + * This is a dead store: the surplus will be overwritten before + * any read. The initialization suppresses compiler warnings. + * Meanwhile, using SIZE_MAX to initialize is good for + * debugging purpose, because a valid surplus value is strictly + * less than usize, which is at most SIZE_MAX. + */ + *surplus = SIZE_MAX; + } + if (unlikely(!tsd_nominal(tsd) || tsd_reentrancy_level_get(tsd) > 0)) { + return false; + } + /* The subtraction is intentionally susceptible to underflow. */ + uint64_t accumbytes = tsd_thread_allocated_get(tsd) + usize - + tsd_thread_allocated_last_event_get(tsd); + uint64_t sample_wait = tsd_prof_sample_event_wait_get(tsd); + if (accumbytes < sample_wait) { + return false; + } + assert(accumbytes - sample_wait < (uint64_t)usize); + if (surplus != NULL) { + *surplus = (size_t)(accumbytes - sample_wait); + } + return true; +} + +JEMALLOC_ALWAYS_INLINE bool +te_prof_sample_event_lookahead(tsd_t *tsd, size_t usize) { + return te_prof_sample_event_lookahead_surplus(tsd, usize, NULL); +} + +JEMALLOC_ALWAYS_INLINE void +te_event_advance(tsd_t *tsd, size_t usize, bool is_alloc) { + te_assert_invariants(tsd); + + te_ctx_t ctx; + te_ctx_get(tsd, &ctx, is_alloc); + + uint64_t bytes_before = te_ctx_current_bytes_get(&ctx); + te_ctx_current_bytes_set(&ctx, bytes_before + usize); + + /* The subtraction is intentionally susceptible to underflow. */ + if (likely(usize < te_ctx_next_event_get(&ctx) - bytes_before)) { + te_assert_invariants(tsd); + } else { + te_event_trigger(tsd, &ctx); + } +} + +JEMALLOC_ALWAYS_INLINE void +thread_dalloc_event(tsd_t *tsd, size_t usize) { + te_event_advance(tsd, usize, false); +} + +JEMALLOC_ALWAYS_INLINE void +thread_alloc_event(tsd_t *tsd, size_t usize) { + te_event_advance(tsd, usize, true); +} + +#endif /* JEMALLOC_INTERNAL_THREAD_EVENT_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/ticker.h b/deps/jemalloc/include/jemalloc/internal/ticker.h new file mode 100644 index 0000000..6b51dde --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/ticker.h @@ -0,0 +1,175 @@ +#ifndef JEMALLOC_INTERNAL_TICKER_H +#define JEMALLOC_INTERNAL_TICKER_H + +#include "jemalloc/internal/prng.h" +#include "jemalloc/internal/util.h" + +/** + * A ticker makes it easy to count-down events until some limit. You + * ticker_init the ticker to trigger every nticks events. You then notify it + * that an event has occurred with calls to ticker_tick (or that nticks events + * have occurred with a call to ticker_ticks), which will return true (and reset + * the counter) if the countdown hit zero. + */ +typedef struct ticker_s ticker_t; +struct ticker_s { + int32_t tick; + int32_t nticks; +}; + +static inline void +ticker_init(ticker_t *ticker, int32_t nticks) { + ticker->tick = nticks; + ticker->nticks = nticks; +} + +static inline void +ticker_copy(ticker_t *ticker, const ticker_t *other) { + *ticker = *other; +} + +static inline int32_t +ticker_read(const ticker_t *ticker) { + return ticker->tick; +} + +/* + * Not intended to be a public API. Unfortunately, on x86, neither gcc nor + * clang seems smart enough to turn + * ticker->tick -= nticks; + * if (unlikely(ticker->tick < 0)) { + * fixup ticker + * return true; + * } + * return false; + * into + * subq %nticks_reg, (%ticker_reg) + * js fixup ticker + * + * unless we force "fixup ticker" out of line. In that case, gcc gets it right, + * but clang now does worse than before. So, on x86 with gcc, we force it out + * of line, but otherwise let the inlining occur. Ordinarily this wouldn't be + * worth the hassle, but this is on the fast path of both malloc and free (via + * tcache_event). + */ +#if defined(__GNUC__) && !defined(__clang__) \ + && (defined(__x86_64__) || defined(__i386__)) +JEMALLOC_NOINLINE +#endif +static bool +ticker_fixup(ticker_t *ticker) { + ticker->tick = ticker->nticks; + return true; +} + +static inline bool +ticker_ticks(ticker_t *ticker, int32_t nticks) { + ticker->tick -= nticks; + if (unlikely(ticker->tick < 0)) { + return ticker_fixup(ticker); + } + return false; +} + +static inline bool +ticker_tick(ticker_t *ticker) { + return ticker_ticks(ticker, 1); +} + +/* + * Try to tick. If ticker would fire, return true, but rely on + * slowpath to reset ticker. + */ +static inline bool +ticker_trytick(ticker_t *ticker) { + --ticker->tick; + if (unlikely(ticker->tick < 0)) { + return true; + } + return false; +} + +/* + * The ticker_geom_t is much like the ticker_t, except that instead of ticker + * having a constant countdown, it has an approximate one; each tick has + * approximately a 1/nticks chance of triggering the count. + * + * The motivation is in triggering arena decay. With a naive strategy, each + * thread would maintain a ticker per arena, and check if decay is necessary + * each time that the arena's ticker fires. This has two costs: + * - Since under reasonable assumptions both threads and arenas can scale + * linearly with the number of CPUs, maintaining per-arena data in each thread + * scales quadratically with the number of CPUs. + * - These tickers are often a cache miss down tcache flush pathways. + * + * By giving each tick a 1/nticks chance of firing, we still maintain the same + * average number of ticks-until-firing per arena, with only a single ticker's + * worth of metadata. + */ + +/* See ticker.c for an explanation of these constants. */ +#define TICKER_GEOM_NBITS 6 +#define TICKER_GEOM_MUL 61 +extern const uint8_t ticker_geom_table[1 << TICKER_GEOM_NBITS]; + +/* Not actually any different from ticker_t; just for type safety. */ +typedef struct ticker_geom_s ticker_geom_t; +struct ticker_geom_s { + int32_t tick; + int32_t nticks; +}; + +/* + * Just pick the average delay for the first counter. We're more concerned with + * the behavior over long periods of time rather than the exact timing of the + * initial ticks. + */ +#define TICKER_GEOM_INIT(nticks) {nticks, nticks} + +static inline void +ticker_geom_init(ticker_geom_t *ticker, int32_t nticks) { + /* + * Make sure there's no overflow possible. This shouldn't really be a + * problem for reasonable nticks choices, which are all static and + * relatively small. + */ + assert((uint64_t)nticks * (uint64_t)255 / (uint64_t)TICKER_GEOM_MUL + <= (uint64_t)INT32_MAX); + ticker->tick = nticks; + ticker->nticks = nticks; +} + +static inline int32_t +ticker_geom_read(const ticker_geom_t *ticker) { + return ticker->tick; +} + +/* Same deal as above. */ +#if defined(__GNUC__) && !defined(__clang__) \ + && (defined(__x86_64__) || defined(__i386__)) +JEMALLOC_NOINLINE +#endif +static bool +ticker_geom_fixup(ticker_geom_t *ticker, uint64_t *prng_state) { + uint64_t idx = prng_lg_range_u64(prng_state, TICKER_GEOM_NBITS); + ticker->tick = (uint32_t)( + (uint64_t)ticker->nticks * (uint64_t)ticker_geom_table[idx] + / (uint64_t)TICKER_GEOM_MUL); + return true; +} + +static inline bool +ticker_geom_ticks(ticker_geom_t *ticker, uint64_t *prng_state, int32_t nticks) { + ticker->tick -= nticks; + if (unlikely(ticker->tick < 0)) { + return ticker_geom_fixup(ticker, prng_state); + } + return false; +} + +static inline bool +ticker_geom_tick(ticker_geom_t *ticker, uint64_t *prng_state) { + return ticker_geom_ticks(ticker, prng_state, 1); +} + +#endif /* JEMALLOC_INTERNAL_TICKER_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tsd.h b/deps/jemalloc/include/jemalloc/internal/tsd.h new file mode 100644 index 0000000..66d6882 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tsd.h @@ -0,0 +1,518 @@ +#ifndef JEMALLOC_INTERNAL_TSD_H +#define JEMALLOC_INTERNAL_TSD_H + +#include "jemalloc/internal/activity_callback.h" +#include "jemalloc/internal/arena_types.h" +#include "jemalloc/internal/assert.h" +#include "jemalloc/internal/bin_types.h" +#include "jemalloc/internal/jemalloc_internal_externs.h" +#include "jemalloc/internal/peak.h" +#include "jemalloc/internal/prof_types.h" +#include "jemalloc/internal/ql.h" +#include "jemalloc/internal/rtree_tsd.h" +#include "jemalloc/internal/tcache_types.h" +#include "jemalloc/internal/tcache_structs.h" +#include "jemalloc/internal/util.h" +#include "jemalloc/internal/witness.h" + +/* + * Thread-Specific-Data layout + * + * At least some thread-local data gets touched on the fast-path of almost all + * malloc operations. But much of it is only necessary down slow-paths, or + * testing. We want to colocate the fast-path data so that it can live on the + * same cacheline if possible. So we define three tiers of hotness: + * TSD_DATA_FAST: Touched on the alloc/dalloc fast paths. + * TSD_DATA_SLOW: Touched down slow paths. "Slow" here is sort of general; + * there are "semi-slow" paths like "not a sized deallocation, but can still + * live in the tcache". We'll want to keep these closer to the fast-path + * data. + * TSD_DATA_SLOWER: Only touched in test or debug modes, or not touched at all. + * + * An additional concern is that the larger tcache bins won't be used (we have a + * bin per size class, but by default only cache relatively small objects). So + * the earlier bins are in the TSD_DATA_FAST tier, but the later ones are in the + * TSD_DATA_SLOWER tier. + * + * As a result of all this, we put the slow data first, then the fast data, then + * the slower data, while keeping the tcache as the last element of the fast + * data (so that the fast -> slower transition happens midway through the + * tcache). While we don't yet play alignment tricks to guarantee it, this + * increases our odds of getting some cache/page locality on fast paths. + */ + +#ifdef JEMALLOC_JET +typedef void (*test_callback_t)(int *); +# define MALLOC_TSD_TEST_DATA_INIT 0x72b65c10 +# define MALLOC_TEST_TSD \ + O(test_data, int, int) \ + O(test_callback, test_callback_t, int) +# define MALLOC_TEST_TSD_INITIALIZER , MALLOC_TSD_TEST_DATA_INIT, NULL +#else +# define MALLOC_TEST_TSD +# define MALLOC_TEST_TSD_INITIALIZER +#endif + +typedef ql_elm(tsd_t) tsd_link_t; + +/* O(name, type, nullable type) */ +#define TSD_DATA_SLOW \ + O(tcache_enabled, bool, bool) \ + O(reentrancy_level, int8_t, int8_t) \ + O(thread_allocated_last_event, uint64_t, uint64_t) \ + O(thread_allocated_next_event, uint64_t, uint64_t) \ + O(thread_deallocated_last_event, uint64_t, uint64_t) \ + O(thread_deallocated_next_event, uint64_t, uint64_t) \ + O(tcache_gc_event_wait, uint64_t, uint64_t) \ + O(tcache_gc_dalloc_event_wait, uint64_t, uint64_t) \ + O(prof_sample_event_wait, uint64_t, uint64_t) \ + O(prof_sample_last_event, uint64_t, uint64_t) \ + O(stats_interval_event_wait, uint64_t, uint64_t) \ + O(stats_interval_last_event, uint64_t, uint64_t) \ + O(peak_alloc_event_wait, uint64_t, uint64_t) \ + O(peak_dalloc_event_wait, uint64_t, uint64_t) \ + O(prof_tdata, prof_tdata_t *, prof_tdata_t *) \ + O(prng_state, uint64_t, uint64_t) \ + O(san_extents_until_guard_small, uint64_t, uint64_t) \ + O(san_extents_until_guard_large, uint64_t, uint64_t) \ + O(iarena, arena_t *, arena_t *) \ + O(arena, arena_t *, arena_t *) \ + O(arena_decay_ticker, ticker_geom_t, ticker_geom_t) \ + O(sec_shard, uint8_t, uint8_t) \ + O(binshards, tsd_binshards_t, tsd_binshards_t)\ + O(tsd_link, tsd_link_t, tsd_link_t) \ + O(in_hook, bool, bool) \ + O(peak, peak_t, peak_t) \ + O(activity_callback_thunk, activity_callback_thunk_t, \ + activity_callback_thunk_t) \ + O(tcache_slow, tcache_slow_t, tcache_slow_t) \ + O(rtree_ctx, rtree_ctx_t, rtree_ctx_t) + +#define TSD_DATA_SLOW_INITIALIZER \ + /* tcache_enabled */ TCACHE_ENABLED_ZERO_INITIALIZER, \ + /* reentrancy_level */ 0, \ + /* thread_allocated_last_event */ 0, \ + /* thread_allocated_next_event */ 0, \ + /* thread_deallocated_last_event */ 0, \ + /* thread_deallocated_next_event */ 0, \ + /* tcache_gc_event_wait */ 0, \ + /* tcache_gc_dalloc_event_wait */ 0, \ + /* prof_sample_event_wait */ 0, \ + /* prof_sample_last_event */ 0, \ + /* stats_interval_event_wait */ 0, \ + /* stats_interval_last_event */ 0, \ + /* peak_alloc_event_wait */ 0, \ + /* peak_dalloc_event_wait */ 0, \ + /* prof_tdata */ NULL, \ + /* prng_state */ 0, \ + /* san_extents_until_guard_small */ 0, \ + /* san_extents_until_guard_large */ 0, \ + /* iarena */ NULL, \ + /* arena */ NULL, \ + /* arena_decay_ticker */ \ + TICKER_GEOM_INIT(ARENA_DECAY_NTICKS_PER_UPDATE), \ + /* sec_shard */ (uint8_t)-1, \ + /* binshards */ TSD_BINSHARDS_ZERO_INITIALIZER, \ + /* tsd_link */ {NULL}, \ + /* in_hook */ false, \ + /* peak */ PEAK_INITIALIZER, \ + /* activity_callback_thunk */ \ + ACTIVITY_CALLBACK_THUNK_INITIALIZER, \ + /* tcache_slow */ TCACHE_SLOW_ZERO_INITIALIZER, \ + /* rtree_ctx */ RTREE_CTX_INITIALIZER, + +/* O(name, type, nullable type) */ +#define TSD_DATA_FAST \ + O(thread_allocated, uint64_t, uint64_t) \ + O(thread_allocated_next_event_fast, uint64_t, uint64_t) \ + O(thread_deallocated, uint64_t, uint64_t) \ + O(thread_deallocated_next_event_fast, uint64_t, uint64_t) \ + O(tcache, tcache_t, tcache_t) + +#define TSD_DATA_FAST_INITIALIZER \ + /* thread_allocated */ 0, \ + /* thread_allocated_next_event_fast */ 0, \ + /* thread_deallocated */ 0, \ + /* thread_deallocated_next_event_fast */ 0, \ + /* tcache */ TCACHE_ZERO_INITIALIZER, + +/* O(name, type, nullable type) */ +#define TSD_DATA_SLOWER \ + O(witness_tsd, witness_tsd_t, witness_tsdn_t) \ + MALLOC_TEST_TSD + +#define TSD_DATA_SLOWER_INITIALIZER \ + /* witness */ WITNESS_TSD_INITIALIZER \ + /* test data */ MALLOC_TEST_TSD_INITIALIZER + + +#define TSD_INITIALIZER { \ + TSD_DATA_SLOW_INITIALIZER \ + /* state */ ATOMIC_INIT(tsd_state_uninitialized), \ + TSD_DATA_FAST_INITIALIZER \ + TSD_DATA_SLOWER_INITIALIZER \ +} + +#if defined(JEMALLOC_MALLOC_THREAD_CLEANUP) || defined(_WIN32) +void _malloc_tsd_cleanup_register(bool (*f)(void)); +#endif + +void *malloc_tsd_malloc(size_t size); +void malloc_tsd_dalloc(void *wrapper); +tsd_t *malloc_tsd_boot0(void); +void malloc_tsd_boot1(void); +void tsd_cleanup(void *arg); +tsd_t *tsd_fetch_slow(tsd_t *tsd, bool internal); +void tsd_state_set(tsd_t *tsd, uint8_t new_state); +void tsd_slow_update(tsd_t *tsd); +void tsd_prefork(tsd_t *tsd); +void tsd_postfork_parent(tsd_t *tsd); +void tsd_postfork_child(tsd_t *tsd); + +/* + * Call ..._inc when your module wants to take all threads down the slow paths, + * and ..._dec when it no longer needs to. + */ +void tsd_global_slow_inc(tsdn_t *tsdn); +void tsd_global_slow_dec(tsdn_t *tsdn); +bool tsd_global_slow(); + +enum { + /* Common case --> jnz. */ + tsd_state_nominal = 0, + /* Initialized but on slow path. */ + tsd_state_nominal_slow = 1, + /* + * Some thread has changed global state in such a way that all nominal + * threads need to recompute their fast / slow status the next time they + * get a chance. + * + * Any thread can change another thread's status *to* recompute, but + * threads are the only ones who can change their status *from* + * recompute. + */ + tsd_state_nominal_recompute = 2, + /* + * The above nominal states should be lower values. We use + * tsd_nominal_max to separate nominal states from threads in the + * process of being born / dying. + */ + tsd_state_nominal_max = 2, + + /* + * A thread might free() during its death as its only allocator action; + * in such scenarios, we need tsd, but set up in such a way that no + * cleanup is necessary. + */ + tsd_state_minimal_initialized = 3, + /* States during which we know we're in thread death. */ + tsd_state_purgatory = 4, + tsd_state_reincarnated = 5, + /* + * What it says on the tin; tsd that hasn't been initialized. Note + * that even when the tsd struct lives in TLS, when need to keep track + * of stuff like whether or not our pthread destructors have been + * scheduled, so this really truly is different than the nominal state. + */ + tsd_state_uninitialized = 6 +}; + +/* + * Some TSD accesses can only be done in a nominal state. To enforce this, we + * wrap TSD member access in a function that asserts on TSD state, and mangle + * field names to prevent touching them accidentally. + */ +#define TSD_MANGLE(n) cant_access_tsd_items_directly_use_a_getter_or_setter_##n + +#ifdef JEMALLOC_U8_ATOMICS +# define tsd_state_t atomic_u8_t +# define tsd_atomic_load atomic_load_u8 +# define tsd_atomic_store atomic_store_u8 +# define tsd_atomic_exchange atomic_exchange_u8 +#else +# define tsd_state_t atomic_u32_t +# define tsd_atomic_load atomic_load_u32 +# define tsd_atomic_store atomic_store_u32 +# define tsd_atomic_exchange atomic_exchange_u32 +#endif + +/* The actual tsd. */ +struct tsd_s { + /* + * The contents should be treated as totally opaque outside the tsd + * module. Access any thread-local state through the getters and + * setters below. + */ + +#define O(n, t, nt) \ + t TSD_MANGLE(n); + + TSD_DATA_SLOW + /* + * We manually limit the state to just a single byte. Unless the 8-bit + * atomics are unavailable (which is rare). + */ + tsd_state_t state; + TSD_DATA_FAST + TSD_DATA_SLOWER +#undef O +}; + +JEMALLOC_ALWAYS_INLINE uint8_t +tsd_state_get(tsd_t *tsd) { + /* + * This should be atomic. Unfortunately, compilers right now can't tell + * that this can be done as a memory comparison, and forces a load into + * a register that hurts fast-path performance. + */ + /* return atomic_load_u8(&tsd->state, ATOMIC_RELAXED); */ + return *(uint8_t *)&tsd->state; +} + +/* + * Wrapper around tsd_t that makes it possible to avoid implicit conversion + * between tsd_t and tsdn_t, where tsdn_t is "nullable" and has to be + * explicitly converted to tsd_t, which is non-nullable. + */ +struct tsdn_s { + tsd_t tsd; +}; +#define TSDN_NULL ((tsdn_t *)0) +JEMALLOC_ALWAYS_INLINE tsdn_t * +tsd_tsdn(tsd_t *tsd) { + return (tsdn_t *)tsd; +} + +JEMALLOC_ALWAYS_INLINE bool +tsdn_null(const tsdn_t *tsdn) { + return tsdn == NULL; +} + +JEMALLOC_ALWAYS_INLINE tsd_t * +tsdn_tsd(tsdn_t *tsdn) { + assert(!tsdn_null(tsdn)); + + return &tsdn->tsd; +} + +/* + * We put the platform-specific data declarations and inlines into their own + * header files to avoid cluttering this file. They define tsd_boot0, + * tsd_boot1, tsd_boot, tsd_booted_get, tsd_get_allocates, tsd_get, and tsd_set. + */ +#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP +#include "jemalloc/internal/tsd_malloc_thread_cleanup.h" +#elif (defined(JEMALLOC_TLS)) +#include "jemalloc/internal/tsd_tls.h" +#elif (defined(_WIN32)) +#include "jemalloc/internal/tsd_win.h" +#else +#include "jemalloc/internal/tsd_generic.h" +#endif + +/* + * tsd_foop_get_unsafe(tsd) returns a pointer to the thread-local instance of + * foo. This omits some safety checks, and so can be used during tsd + * initialization and cleanup. + */ +#define O(n, t, nt) \ +JEMALLOC_ALWAYS_INLINE t * \ +tsd_##n##p_get_unsafe(tsd_t *tsd) { \ + return &tsd->TSD_MANGLE(n); \ +} +TSD_DATA_SLOW +TSD_DATA_FAST +TSD_DATA_SLOWER +#undef O + +/* tsd_foop_get(tsd) returns a pointer to the thread-local instance of foo. */ +#define O(n, t, nt) \ +JEMALLOC_ALWAYS_INLINE t * \ +tsd_##n##p_get(tsd_t *tsd) { \ + /* \ + * Because the state might change asynchronously if it's \ + * nominal, we need to make sure that we only read it once. \ + */ \ + uint8_t state = tsd_state_get(tsd); \ + assert(state == tsd_state_nominal || \ + state == tsd_state_nominal_slow || \ + state == tsd_state_nominal_recompute || \ + state == tsd_state_reincarnated || \ + state == tsd_state_minimal_initialized); \ + return tsd_##n##p_get_unsafe(tsd); \ +} +TSD_DATA_SLOW +TSD_DATA_FAST +TSD_DATA_SLOWER +#undef O + +/* + * tsdn_foop_get(tsdn) returns either the thread-local instance of foo (if tsdn + * isn't NULL), or NULL (if tsdn is NULL), cast to the nullable pointer type. + */ +#define O(n, t, nt) \ +JEMALLOC_ALWAYS_INLINE nt * \ +tsdn_##n##p_get(tsdn_t *tsdn) { \ + if (tsdn_null(tsdn)) { \ + return NULL; \ + } \ + tsd_t *tsd = tsdn_tsd(tsdn); \ + return (nt *)tsd_##n##p_get(tsd); \ +} +TSD_DATA_SLOW +TSD_DATA_FAST +TSD_DATA_SLOWER +#undef O + +/* tsd_foo_get(tsd) returns the value of the thread-local instance of foo. */ +#define O(n, t, nt) \ +JEMALLOC_ALWAYS_INLINE t \ +tsd_##n##_get(tsd_t *tsd) { \ + return *tsd_##n##p_get(tsd); \ +} +TSD_DATA_SLOW +TSD_DATA_FAST +TSD_DATA_SLOWER +#undef O + +/* tsd_foo_set(tsd, val) updates the thread-local instance of foo to be val. */ +#define O(n, t, nt) \ +JEMALLOC_ALWAYS_INLINE void \ +tsd_##n##_set(tsd_t *tsd, t val) { \ + assert(tsd_state_get(tsd) != tsd_state_reincarnated && \ + tsd_state_get(tsd) != tsd_state_minimal_initialized); \ + *tsd_##n##p_get(tsd) = val; \ +} +TSD_DATA_SLOW +TSD_DATA_FAST +TSD_DATA_SLOWER +#undef O + +JEMALLOC_ALWAYS_INLINE void +tsd_assert_fast(tsd_t *tsd) { + /* + * Note that our fastness assertion does *not* include global slowness + * counters; it's not in general possible to ensure that they won't + * change asynchronously from underneath us. + */ + assert(!malloc_slow && tsd_tcache_enabled_get(tsd) && + tsd_reentrancy_level_get(tsd) == 0); +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_fast(tsd_t *tsd) { + bool fast = (tsd_state_get(tsd) == tsd_state_nominal); + if (fast) { + tsd_assert_fast(tsd); + } + + return fast; +} + +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_fetch_impl(bool init, bool minimal) { + tsd_t *tsd = tsd_get(init); + + if (!init && tsd_get_allocates() && tsd == NULL) { + return NULL; + } + assert(tsd != NULL); + + if (unlikely(tsd_state_get(tsd) != tsd_state_nominal)) { + return tsd_fetch_slow(tsd, minimal); + } + assert(tsd_fast(tsd)); + tsd_assert_fast(tsd); + + return tsd; +} + +/* Get a minimal TSD that requires no cleanup. See comments in free(). */ +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_fetch_min(void) { + return tsd_fetch_impl(true, true); +} + +/* For internal background threads use only. */ +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_internal_fetch(void) { + tsd_t *tsd = tsd_fetch_min(); + /* Use reincarnated state to prevent full initialization. */ + tsd_state_set(tsd, tsd_state_reincarnated); + + return tsd; +} + +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_fetch(void) { + return tsd_fetch_impl(true, false); +} + +static inline bool +tsd_nominal(tsd_t *tsd) { + bool nominal = tsd_state_get(tsd) <= tsd_state_nominal_max; + assert(nominal || tsd_reentrancy_level_get(tsd) > 0); + + return nominal; +} + +JEMALLOC_ALWAYS_INLINE tsdn_t * +tsdn_fetch(void) { + if (!tsd_booted_get()) { + return NULL; + } + + return tsd_tsdn(tsd_fetch_impl(false, false)); +} + +JEMALLOC_ALWAYS_INLINE rtree_ctx_t * +tsd_rtree_ctx(tsd_t *tsd) { + return tsd_rtree_ctxp_get(tsd); +} + +JEMALLOC_ALWAYS_INLINE rtree_ctx_t * +tsdn_rtree_ctx(tsdn_t *tsdn, rtree_ctx_t *fallback) { + /* + * If tsd cannot be accessed, initialize the fallback rtree_ctx and + * return a pointer to it. + */ + if (unlikely(tsdn_null(tsdn))) { + rtree_ctx_data_init(fallback); + return fallback; + } + return tsd_rtree_ctx(tsdn_tsd(tsdn)); +} + +static inline bool +tsd_state_nocleanup(tsd_t *tsd) { + return tsd_state_get(tsd) == tsd_state_reincarnated || + tsd_state_get(tsd) == tsd_state_minimal_initialized; +} + +/* + * These "raw" tsd reentrancy functions don't have any debug checking to make + * sure that we're not touching arena 0. Better is to call pre_reentrancy and + * post_reentrancy if this is possible. + */ +static inline void +tsd_pre_reentrancy_raw(tsd_t *tsd) { + bool fast = tsd_fast(tsd); + assert(tsd_reentrancy_level_get(tsd) < INT8_MAX); + ++*tsd_reentrancy_levelp_get(tsd); + if (fast) { + /* Prepare slow path for reentrancy. */ + tsd_slow_update(tsd); + assert(tsd_state_get(tsd) == tsd_state_nominal_slow); + } +} + +static inline void +tsd_post_reentrancy_raw(tsd_t *tsd) { + int8_t *reentrancy_level = tsd_reentrancy_levelp_get(tsd); + assert(*reentrancy_level > 0); + if (--*reentrancy_level == 0) { + tsd_slow_update(tsd); + } +} + +#endif /* JEMALLOC_INTERNAL_TSD_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tsd_generic.h b/deps/jemalloc/include/jemalloc/internal/tsd_generic.h new file mode 100644 index 0000000..a718472 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tsd_generic.h @@ -0,0 +1,182 @@ +#ifdef JEMALLOC_INTERNAL_TSD_GENERIC_H +#error This file should be included only once, by tsd.h. +#endif +#define JEMALLOC_INTERNAL_TSD_GENERIC_H + +typedef struct tsd_init_block_s tsd_init_block_t; +struct tsd_init_block_s { + ql_elm(tsd_init_block_t) link; + pthread_t thread; + void *data; +}; + +/* Defined in tsd.c, to allow the mutex headers to have tsd dependencies. */ +typedef struct tsd_init_head_s tsd_init_head_t; + +typedef struct { + bool initialized; + tsd_t val; +} tsd_wrapper_t; + +void *tsd_init_check_recursion(tsd_init_head_t *head, + tsd_init_block_t *block); +void tsd_init_finish(tsd_init_head_t *head, tsd_init_block_t *block); + +extern pthread_key_t tsd_tsd; +extern tsd_init_head_t tsd_init_head; +extern tsd_wrapper_t tsd_boot_wrapper; +extern bool tsd_booted; + +/* Initialization/cleanup. */ +JEMALLOC_ALWAYS_INLINE void +tsd_cleanup_wrapper(void *arg) { + tsd_wrapper_t *wrapper = (tsd_wrapper_t *)arg; + + if (wrapper->initialized) { + wrapper->initialized = false; + tsd_cleanup(&wrapper->val); + if (wrapper->initialized) { + /* Trigger another cleanup round. */ + if (pthread_setspecific(tsd_tsd, (void *)wrapper) != 0) + { + malloc_write("<jemalloc>: Error setting TSD\n"); + if (opt_abort) { + abort(); + } + } + return; + } + } + malloc_tsd_dalloc(wrapper); +} + +JEMALLOC_ALWAYS_INLINE void +tsd_wrapper_set(tsd_wrapper_t *wrapper) { + if (unlikely(!tsd_booted)) { + return; + } + if (pthread_setspecific(tsd_tsd, (void *)wrapper) != 0) { + malloc_write("<jemalloc>: Error setting TSD\n"); + abort(); + } +} + +JEMALLOC_ALWAYS_INLINE tsd_wrapper_t * +tsd_wrapper_get(bool init) { + tsd_wrapper_t *wrapper; + + if (unlikely(!tsd_booted)) { + return &tsd_boot_wrapper; + } + + wrapper = (tsd_wrapper_t *)pthread_getspecific(tsd_tsd); + + if (init && unlikely(wrapper == NULL)) { + tsd_init_block_t block; + wrapper = (tsd_wrapper_t *) + tsd_init_check_recursion(&tsd_init_head, &block); + if (wrapper) { + return wrapper; + } + wrapper = (tsd_wrapper_t *) + malloc_tsd_malloc(sizeof(tsd_wrapper_t)); + block.data = (void *)wrapper; + if (wrapper == NULL) { + malloc_write("<jemalloc>: Error allocating TSD\n"); + abort(); + } else { + wrapper->initialized = false; + JEMALLOC_DIAGNOSTIC_PUSH + JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS + tsd_t initializer = TSD_INITIALIZER; + JEMALLOC_DIAGNOSTIC_POP + wrapper->val = initializer; + } + tsd_wrapper_set(wrapper); + tsd_init_finish(&tsd_init_head, &block); + } + return wrapper; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_boot0(void) { + tsd_wrapper_t *wrapper; + tsd_init_block_t block; + + wrapper = (tsd_wrapper_t *) + tsd_init_check_recursion(&tsd_init_head, &block); + if (wrapper) { + return false; + } + block.data = &tsd_boot_wrapper; + if (pthread_key_create(&tsd_tsd, tsd_cleanup_wrapper) != 0) { + return true; + } + tsd_booted = true; + tsd_wrapper_set(&tsd_boot_wrapper); + tsd_init_finish(&tsd_init_head, &block); + return false; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_boot1(void) { + tsd_wrapper_t *wrapper; + wrapper = (tsd_wrapper_t *)malloc_tsd_malloc(sizeof(tsd_wrapper_t)); + if (wrapper == NULL) { + malloc_write("<jemalloc>: Error allocating TSD\n"); + abort(); + } + tsd_boot_wrapper.initialized = false; + tsd_cleanup(&tsd_boot_wrapper.val); + wrapper->initialized = false; + JEMALLOC_DIAGNOSTIC_PUSH + JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS + tsd_t initializer = TSD_INITIALIZER; + JEMALLOC_DIAGNOSTIC_POP + wrapper->val = initializer; + tsd_wrapper_set(wrapper); +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_boot(void) { + if (tsd_boot0()) { + return true; + } + tsd_boot1(); + return false; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_booted_get(void) { + return tsd_booted; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_get_allocates(void) { + return true; +} + +/* Get/set. */ +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_get(bool init) { + tsd_wrapper_t *wrapper; + + assert(tsd_booted); + wrapper = tsd_wrapper_get(init); + if (tsd_get_allocates() && !init && wrapper == NULL) { + return NULL; + } + return &wrapper->val; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_set(tsd_t *val) { + tsd_wrapper_t *wrapper; + + assert(tsd_booted); + wrapper = tsd_wrapper_get(true); + if (likely(&wrapper->val != val)) { + wrapper->val = *(val); + } + wrapper->initialized = true; +} diff --git a/deps/jemalloc/include/jemalloc/internal/tsd_malloc_thread_cleanup.h b/deps/jemalloc/include/jemalloc/internal/tsd_malloc_thread_cleanup.h new file mode 100644 index 0000000..d8f3ef1 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tsd_malloc_thread_cleanup.h @@ -0,0 +1,61 @@ +#ifdef JEMALLOC_INTERNAL_TSD_MALLOC_THREAD_CLEANUP_H +#error This file should be included only once, by tsd.h. +#endif +#define JEMALLOC_INTERNAL_TSD_MALLOC_THREAD_CLEANUP_H + +#define JEMALLOC_TSD_TYPE_ATTR(type) __thread type JEMALLOC_TLS_MODEL + +extern JEMALLOC_TSD_TYPE_ATTR(tsd_t) tsd_tls; +extern JEMALLOC_TSD_TYPE_ATTR(bool) tsd_initialized; +extern bool tsd_booted; + +/* Initialization/cleanup. */ +JEMALLOC_ALWAYS_INLINE bool +tsd_cleanup_wrapper(void) { + if (tsd_initialized) { + tsd_initialized = false; + tsd_cleanup(&tsd_tls); + } + return tsd_initialized; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_boot0(void) { + _malloc_tsd_cleanup_register(&tsd_cleanup_wrapper); + tsd_booted = true; + return false; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_boot1(void) { + /* Do nothing. */ +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_boot(void) { + return tsd_boot0(); +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_booted_get(void) { + return tsd_booted; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_get_allocates(void) { + return false; +} + +/* Get/set. */ +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_get(bool init) { + return &tsd_tls; +} +JEMALLOC_ALWAYS_INLINE void +tsd_set(tsd_t *val) { + assert(tsd_booted); + if (likely(&tsd_tls != val)) { + tsd_tls = (*val); + } + tsd_initialized = true; +} diff --git a/deps/jemalloc/include/jemalloc/internal/tsd_tls.h b/deps/jemalloc/include/jemalloc/internal/tsd_tls.h new file mode 100644 index 0000000..7d6c805 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tsd_tls.h @@ -0,0 +1,60 @@ +#ifdef JEMALLOC_INTERNAL_TSD_TLS_H +#error This file should be included only once, by tsd.h. +#endif +#define JEMALLOC_INTERNAL_TSD_TLS_H + +#define JEMALLOC_TSD_TYPE_ATTR(type) __thread type JEMALLOC_TLS_MODEL + +extern JEMALLOC_TSD_TYPE_ATTR(tsd_t) tsd_tls; +extern pthread_key_t tsd_tsd; +extern bool tsd_booted; + +/* Initialization/cleanup. */ +JEMALLOC_ALWAYS_INLINE bool +tsd_boot0(void) { + if (pthread_key_create(&tsd_tsd, &tsd_cleanup) != 0) { + return true; + } + tsd_booted = true; + return false; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_boot1(void) { + /* Do nothing. */ +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_boot(void) { + return tsd_boot0(); +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_booted_get(void) { + return tsd_booted; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_get_allocates(void) { + return false; +} + +/* Get/set. */ +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_get(bool init) { + return &tsd_tls; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_set(tsd_t *val) { + assert(tsd_booted); + if (likely(&tsd_tls != val)) { + tsd_tls = (*val); + } + if (pthread_setspecific(tsd_tsd, (void *)(&tsd_tls)) != 0) { + malloc_write("<jemalloc>: Error setting tsd.\n"); + if (opt_abort) { + abort(); + } + } +} diff --git a/deps/jemalloc/include/jemalloc/internal/tsd_types.h b/deps/jemalloc/include/jemalloc/internal/tsd_types.h new file mode 100644 index 0000000..a6ae37d --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tsd_types.h @@ -0,0 +1,10 @@ +#ifndef JEMALLOC_INTERNAL_TSD_TYPES_H +#define JEMALLOC_INTERNAL_TSD_TYPES_H + +#define MALLOC_TSD_CLEANUPS_MAX 4 + +typedef struct tsd_s tsd_t; +typedef struct tsdn_s tsdn_t; +typedef bool (*malloc_tsd_cleanup_t)(void); + +#endif /* JEMALLOC_INTERNAL_TSD_TYPES_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/tsd_win.h b/deps/jemalloc/include/jemalloc/internal/tsd_win.h new file mode 100644 index 0000000..a91dac8 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/tsd_win.h @@ -0,0 +1,139 @@ +#ifdef JEMALLOC_INTERNAL_TSD_WIN_H +#error This file should be included only once, by tsd.h. +#endif +#define JEMALLOC_INTERNAL_TSD_WIN_H + +typedef struct { + bool initialized; + tsd_t val; +} tsd_wrapper_t; + +extern DWORD tsd_tsd; +extern tsd_wrapper_t tsd_boot_wrapper; +extern bool tsd_booted; + +/* Initialization/cleanup. */ +JEMALLOC_ALWAYS_INLINE bool +tsd_cleanup_wrapper(void) { + DWORD error = GetLastError(); + tsd_wrapper_t *wrapper = (tsd_wrapper_t *)TlsGetValue(tsd_tsd); + SetLastError(error); + + if (wrapper == NULL) { + return false; + } + + if (wrapper->initialized) { + wrapper->initialized = false; + tsd_cleanup(&wrapper->val); + if (wrapper->initialized) { + /* Trigger another cleanup round. */ + return true; + } + } + malloc_tsd_dalloc(wrapper); + return false; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_wrapper_set(tsd_wrapper_t *wrapper) { + if (!TlsSetValue(tsd_tsd, (void *)wrapper)) { + malloc_write("<jemalloc>: Error setting TSD\n"); + abort(); + } +} + +JEMALLOC_ALWAYS_INLINE tsd_wrapper_t * +tsd_wrapper_get(bool init) { + DWORD error = GetLastError(); + tsd_wrapper_t *wrapper = (tsd_wrapper_t *) TlsGetValue(tsd_tsd); + SetLastError(error); + + if (init && unlikely(wrapper == NULL)) { + wrapper = (tsd_wrapper_t *) + malloc_tsd_malloc(sizeof(tsd_wrapper_t)); + if (wrapper == NULL) { + malloc_write("<jemalloc>: Error allocating TSD\n"); + abort(); + } else { + wrapper->initialized = false; + /* MSVC is finicky about aggregate initialization. */ + tsd_t tsd_initializer = TSD_INITIALIZER; + wrapper->val = tsd_initializer; + } + tsd_wrapper_set(wrapper); + } + return wrapper; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_boot0(void) { + tsd_tsd = TlsAlloc(); + if (tsd_tsd == TLS_OUT_OF_INDEXES) { + return true; + } + _malloc_tsd_cleanup_register(&tsd_cleanup_wrapper); + tsd_wrapper_set(&tsd_boot_wrapper); + tsd_booted = true; + return false; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_boot1(void) { + tsd_wrapper_t *wrapper; + wrapper = (tsd_wrapper_t *) + malloc_tsd_malloc(sizeof(tsd_wrapper_t)); + if (wrapper == NULL) { + malloc_write("<jemalloc>: Error allocating TSD\n"); + abort(); + } + tsd_boot_wrapper.initialized = false; + tsd_cleanup(&tsd_boot_wrapper.val); + wrapper->initialized = false; + tsd_t initializer = TSD_INITIALIZER; + wrapper->val = initializer; + tsd_wrapper_set(wrapper); +} +JEMALLOC_ALWAYS_INLINE bool +tsd_boot(void) { + if (tsd_boot0()) { + return true; + } + tsd_boot1(); + return false; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_booted_get(void) { + return tsd_booted; +} + +JEMALLOC_ALWAYS_INLINE bool +tsd_get_allocates(void) { + return true; +} + +/* Get/set. */ +JEMALLOC_ALWAYS_INLINE tsd_t * +tsd_get(bool init) { + tsd_wrapper_t *wrapper; + + assert(tsd_booted); + wrapper = tsd_wrapper_get(init); + if (tsd_get_allocates() && !init && wrapper == NULL) { + return NULL; + } + return &wrapper->val; +} + +JEMALLOC_ALWAYS_INLINE void +tsd_set(tsd_t *val) { + tsd_wrapper_t *wrapper; + + assert(tsd_booted); + wrapper = tsd_wrapper_get(true); + if (likely(&wrapper->val != val)) { + wrapper->val = *(val); + } + wrapper->initialized = true; +} diff --git a/deps/jemalloc/include/jemalloc/internal/typed_list.h b/deps/jemalloc/include/jemalloc/internal/typed_list.h new file mode 100644 index 0000000..6535055 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/typed_list.h @@ -0,0 +1,55 @@ +#ifndef JEMALLOC_INTERNAL_TYPED_LIST_H +#define JEMALLOC_INTERNAL_TYPED_LIST_H + +/* + * This wraps the ql module to implement a list class in a way that's a little + * bit easier to use; it handles ql_elm_new calls and provides type safety. + */ + +#define TYPED_LIST(list_type, el_type, linkage) \ +typedef struct { \ + ql_head(el_type) head; \ +} list_type##_t; \ +static inline void \ +list_type##_init(list_type##_t *list) { \ + ql_new(&list->head); \ +} \ +static inline el_type * \ +list_type##_first(const list_type##_t *list) { \ + return ql_first(&list->head); \ +} \ +static inline el_type * \ +list_type##_last(const list_type##_t *list) { \ + return ql_last(&list->head, linkage); \ +} \ +static inline void \ +list_type##_append(list_type##_t *list, el_type *item) { \ + ql_elm_new(item, linkage); \ + ql_tail_insert(&list->head, item, linkage); \ +} \ +static inline void \ +list_type##_prepend(list_type##_t *list, el_type *item) { \ + ql_elm_new(item, linkage); \ + ql_head_insert(&list->head, item, linkage); \ +} \ +static inline void \ +list_type##_replace(list_type##_t *list, el_type *to_remove, \ + el_type *to_insert) { \ + ql_elm_new(to_insert, linkage); \ + ql_after_insert(to_remove, to_insert, linkage); \ + ql_remove(&list->head, to_remove, linkage); \ +} \ +static inline void \ +list_type##_remove(list_type##_t *list, el_type *item) { \ + ql_remove(&list->head, item, linkage); \ +} \ +static inline bool \ +list_type##_empty(list_type##_t *list) { \ + return ql_empty(&list->head); \ +} \ +static inline void \ +list_type##_concat(list_type##_t *list_a, list_type##_t *list_b) { \ + ql_concat(&list_a->head, &list_b->head, linkage); \ +} + +#endif /* JEMALLOC_INTERNAL_TYPED_LIST_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/util.h b/deps/jemalloc/include/jemalloc/internal/util.h new file mode 100644 index 0000000..dcb1c0a --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/util.h @@ -0,0 +1,123 @@ +#ifndef JEMALLOC_INTERNAL_UTIL_H +#define JEMALLOC_INTERNAL_UTIL_H + +#define UTIL_INLINE static inline + +/* Junk fill patterns. */ +#ifndef JEMALLOC_ALLOC_JUNK +# define JEMALLOC_ALLOC_JUNK ((uint8_t)0xa5) +#endif +#ifndef JEMALLOC_FREE_JUNK +# define JEMALLOC_FREE_JUNK ((uint8_t)0x5a) +#endif + +/* + * Wrap a cpp argument that contains commas such that it isn't broken up into + * multiple arguments. + */ +#define JEMALLOC_ARG_CONCAT(...) __VA_ARGS__ + +/* cpp macro definition stringification. */ +#define STRINGIFY_HELPER(x) #x +#define STRINGIFY(x) STRINGIFY_HELPER(x) + +/* + * Silence compiler warnings due to uninitialized values. This is used + * wherever the compiler fails to recognize that the variable is never used + * uninitialized. + */ +#define JEMALLOC_CC_SILENCE_INIT(v) = v + +#ifdef __GNUC__ +# define likely(x) __builtin_expect(!!(x), 1) +# define unlikely(x) __builtin_expect(!!(x), 0) +#else +# define likely(x) !!(x) +# define unlikely(x) !!(x) +#endif + +#if !defined(JEMALLOC_INTERNAL_UNREACHABLE) +# error JEMALLOC_INTERNAL_UNREACHABLE should have been defined by configure +#endif + +#define unreachable() JEMALLOC_INTERNAL_UNREACHABLE() + +/* Set error code. */ +UTIL_INLINE void +set_errno(int errnum) { +#ifdef _WIN32 + SetLastError(errnum); +#else + errno = errnum; +#endif +} + +/* Get last error code. */ +UTIL_INLINE int +get_errno(void) { +#ifdef _WIN32 + return GetLastError(); +#else + return errno; +#endif +} + +JEMALLOC_ALWAYS_INLINE void +util_assume(bool b) { + if (!b) { + unreachable(); + } +} + +/* ptr should be valid. */ +JEMALLOC_ALWAYS_INLINE void +util_prefetch_read(void *ptr) { + /* + * This should arguably be a config check; but any version of GCC so old + * that it doesn't support __builtin_prefetch is also too old to build + * jemalloc. + */ +#ifdef __GNUC__ + if (config_debug) { + /* Enforce the "valid ptr" requirement. */ + *(volatile char *)ptr; + } + __builtin_prefetch(ptr, /* read or write */ 0, /* locality hint */ 3); +#else + *(volatile char *)ptr; +#endif +} + +JEMALLOC_ALWAYS_INLINE void +util_prefetch_write(void *ptr) { +#ifdef __GNUC__ + if (config_debug) { + *(volatile char *)ptr; + } + /* + * The only difference from the read variant is that this has a 1 as the + * second argument (the write hint). + */ + __builtin_prefetch(ptr, 1, 3); +#else + *(volatile char *)ptr; +#endif +} + +JEMALLOC_ALWAYS_INLINE void +util_prefetch_read_range(void *ptr, size_t sz) { + for (size_t i = 0; i < sz; i += CACHELINE) { + util_prefetch_read((void *)((uintptr_t)ptr + i)); + } +} + +JEMALLOC_ALWAYS_INLINE void +util_prefetch_write_range(void *ptr, size_t sz) { + for (size_t i = 0; i < sz; i += CACHELINE) { + util_prefetch_write((void *)((uintptr_t)ptr + i)); + } +} + +#undef UTIL_INLINE + +#endif /* JEMALLOC_INTERNAL_UTIL_H */ diff --git a/deps/jemalloc/include/jemalloc/internal/witness.h b/deps/jemalloc/include/jemalloc/internal/witness.h new file mode 100644 index 0000000..e81b9a0 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/witness.h @@ -0,0 +1,378 @@ +#ifndef JEMALLOC_INTERNAL_WITNESS_H +#define JEMALLOC_INTERNAL_WITNESS_H + +#include "jemalloc/internal/ql.h" + +/******************************************************************************/ +/* LOCK RANKS */ +/******************************************************************************/ + +enum witness_rank_e { + /* + * Order matters within this enum listing -- higher valued locks can + * only be acquired after lower-valued ones. We use the + * auto-incrementing-ness of enum values to enforce this. + */ + + /* + * Witnesses with rank WITNESS_RANK_OMIT are completely ignored by the + * witness machinery. + */ + WITNESS_RANK_OMIT, + WITNESS_RANK_MIN, + WITNESS_RANK_INIT = WITNESS_RANK_MIN, + WITNESS_RANK_CTL, + WITNESS_RANK_TCACHES, + WITNESS_RANK_ARENAS, + WITNESS_RANK_BACKGROUND_THREAD_GLOBAL, + WITNESS_RANK_PROF_DUMP, + WITNESS_RANK_PROF_BT2GCTX, + WITNESS_RANK_PROF_TDATAS, + WITNESS_RANK_PROF_TDATA, + WITNESS_RANK_PROF_LOG, + WITNESS_RANK_PROF_GCTX, + WITNESS_RANK_PROF_RECENT_DUMP, + WITNESS_RANK_BACKGROUND_THREAD, + /* + * Used as an argument to witness_assert_depth_to_rank() in order to + * validate depth excluding non-core locks with lower ranks. Since the + * rank argument to witness_assert_depth_to_rank() is inclusive rather + * than exclusive, this definition can have the same value as the + * minimally ranked core lock. + */ + WITNESS_RANK_CORE, + WITNESS_RANK_DECAY = WITNESS_RANK_CORE, + WITNESS_RANK_TCACHE_QL, + + WITNESS_RANK_SEC_SHARD, + + WITNESS_RANK_EXTENT_GROW, + WITNESS_RANK_HPA_SHARD_GROW = WITNESS_RANK_EXTENT_GROW, + WITNESS_RANK_SAN_BUMP_ALLOC = WITNESS_RANK_EXTENT_GROW, + + WITNESS_RANK_EXTENTS, + WITNESS_RANK_HPA_SHARD = WITNESS_RANK_EXTENTS, + + WITNESS_RANK_HPA_CENTRAL_GROW, + WITNESS_RANK_HPA_CENTRAL, + + WITNESS_RANK_EDATA_CACHE, + + WITNESS_RANK_RTREE, + WITNESS_RANK_BASE, + WITNESS_RANK_ARENA_LARGE, + WITNESS_RANK_HOOK, + + WITNESS_RANK_LEAF=0x1000, + WITNESS_RANK_BIN = WITNESS_RANK_LEAF, + WITNESS_RANK_ARENA_STATS = WITNESS_RANK_LEAF, + WITNESS_RANK_COUNTER_ACCUM = WITNESS_RANK_LEAF, + WITNESS_RANK_DSS = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_ACTIVE = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_DUMP_FILENAME = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_GDUMP = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_NEXT_THR_UID = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_RECENT_ALLOC = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_STATS = WITNESS_RANK_LEAF, + WITNESS_RANK_PROF_THREAD_ACTIVE_INIT = WITNESS_RANK_LEAF, +}; +typedef enum witness_rank_e witness_rank_t; + +/******************************************************************************/ +/* PER-WITNESS DATA */ +/******************************************************************************/ +#if defined(JEMALLOC_DEBUG) +# define WITNESS_INITIALIZER(name, rank) {name, rank, NULL, NULL, {NULL, NULL}} +#else +# define WITNESS_INITIALIZER(name, rank) +#endif + +typedef struct witness_s witness_t; +typedef ql_head(witness_t) witness_list_t; +typedef int witness_comp_t (const witness_t *, void *, const witness_t *, + void *); + +struct witness_s { + /* Name, used for printing lock order reversal messages. */ + const char *name; + + /* + * Witness rank, where 0 is lowest and WITNESS_RANK_LEAF is highest. + * Witnesses must be acquired in order of increasing rank. + */ + witness_rank_t rank; + + /* + * If two witnesses are of equal rank and they have the samp comp + * function pointer, it is called as a last attempt to differentiate + * between witnesses of equal rank. + */ + witness_comp_t *comp; + + /* Opaque data, passed to comp(). */ + void *opaque; + + /* Linkage for thread's currently owned locks. */ + ql_elm(witness_t) link; +}; + +/******************************************************************************/ +/* PER-THREAD DATA */ +/******************************************************************************/ +typedef struct witness_tsd_s witness_tsd_t; +struct witness_tsd_s { + witness_list_t witnesses; + bool forking; +}; + +#define WITNESS_TSD_INITIALIZER { ql_head_initializer(witnesses), false } +#define WITNESS_TSDN_NULL ((witness_tsdn_t *)0) + +/******************************************************************************/ +/* (PER-THREAD) NULLABILITY HELPERS */ +/******************************************************************************/ +typedef struct witness_tsdn_s witness_tsdn_t; +struct witness_tsdn_s { + witness_tsd_t witness_tsd; +}; + +JEMALLOC_ALWAYS_INLINE witness_tsdn_t * +witness_tsd_tsdn(witness_tsd_t *witness_tsd) { + return (witness_tsdn_t *)witness_tsd; +} + +JEMALLOC_ALWAYS_INLINE bool +witness_tsdn_null(witness_tsdn_t *witness_tsdn) { + return witness_tsdn == NULL; +} + +JEMALLOC_ALWAYS_INLINE witness_tsd_t * +witness_tsdn_tsd(witness_tsdn_t *witness_tsdn) { + assert(!witness_tsdn_null(witness_tsdn)); + return &witness_tsdn->witness_tsd; +} + +/******************************************************************************/ +/* API */ +/******************************************************************************/ +void witness_init(witness_t *witness, const char *name, witness_rank_t rank, + witness_comp_t *comp, void *opaque); + +typedef void (witness_lock_error_t)(const witness_list_t *, const witness_t *); +extern witness_lock_error_t *JET_MUTABLE witness_lock_error; + +typedef void (witness_owner_error_t)(const witness_t *); +extern witness_owner_error_t *JET_MUTABLE witness_owner_error; + +typedef void (witness_not_owner_error_t)(const witness_t *); +extern witness_not_owner_error_t *JET_MUTABLE witness_not_owner_error; + +typedef void (witness_depth_error_t)(const witness_list_t *, + witness_rank_t rank_inclusive, unsigned depth); +extern witness_depth_error_t *JET_MUTABLE witness_depth_error; + +void witnesses_cleanup(witness_tsd_t *witness_tsd); +void witness_prefork(witness_tsd_t *witness_tsd); +void witness_postfork_parent(witness_tsd_t *witness_tsd); +void witness_postfork_child(witness_tsd_t *witness_tsd); + +/* Helper, not intended for direct use. */ +static inline bool +witness_owner(witness_tsd_t *witness_tsd, const witness_t *witness) { + witness_list_t *witnesses; + witness_t *w; + + cassert(config_debug); + + witnesses = &witness_tsd->witnesses; + ql_foreach(w, witnesses, link) { + if (w == witness) { + return true; + } + } + + return false; +} + +static inline void +witness_assert_owner(witness_tsdn_t *witness_tsdn, const witness_t *witness) { + witness_tsd_t *witness_tsd; + + if (!config_debug) { + return; + } + + if (witness_tsdn_null(witness_tsdn)) { + return; + } + witness_tsd = witness_tsdn_tsd(witness_tsdn); + if (witness->rank == WITNESS_RANK_OMIT) { + return; + } + + if (witness_owner(witness_tsd, witness)) { + return; + } + witness_owner_error(witness); +} + +static inline void +witness_assert_not_owner(witness_tsdn_t *witness_tsdn, + const witness_t *witness) { + witness_tsd_t *witness_tsd; + witness_list_t *witnesses; + witness_t *w; + + if (!config_debug) { + return; + } + + if (witness_tsdn_null(witness_tsdn)) { + return; + } + witness_tsd = witness_tsdn_tsd(witness_tsdn); + if (witness->rank == WITNESS_RANK_OMIT) { + return; + } + + witnesses = &witness_tsd->witnesses; + ql_foreach(w, witnesses, link) { + if (w == witness) { + witness_not_owner_error(witness); + } + } +} + +/* Returns depth. Not intended for direct use. */ +static inline unsigned +witness_depth_to_rank(witness_list_t *witnesses, witness_rank_t rank_inclusive) +{ + unsigned d = 0; + witness_t *w = ql_last(witnesses, link); + + if (w != NULL) { + ql_reverse_foreach(w, witnesses, link) { + if (w->rank < rank_inclusive) { + break; + } + d++; + } + } + + return d; +} + +static inline void +witness_assert_depth_to_rank(witness_tsdn_t *witness_tsdn, + witness_rank_t rank_inclusive, unsigned depth) { + if (!config_debug || witness_tsdn_null(witness_tsdn)) { + return; + } + + witness_list_t *witnesses = &witness_tsdn_tsd(witness_tsdn)->witnesses; + unsigned d = witness_depth_to_rank(witnesses, rank_inclusive); + + if (d != depth) { + witness_depth_error(witnesses, rank_inclusive, depth); + } +} + +static inline void +witness_assert_depth(witness_tsdn_t *witness_tsdn, unsigned depth) { + witness_assert_depth_to_rank(witness_tsdn, WITNESS_RANK_MIN, depth); +} + +static inline void +witness_assert_lockless(witness_tsdn_t *witness_tsdn) { + witness_assert_depth(witness_tsdn, 0); +} + +static inline void +witness_assert_positive_depth_to_rank(witness_tsdn_t *witness_tsdn, + witness_rank_t rank_inclusive) { + if (!config_debug || witness_tsdn_null(witness_tsdn)) { + return; + } + + witness_list_t *witnesses = &witness_tsdn_tsd(witness_tsdn)->witnesses; + unsigned d = witness_depth_to_rank(witnesses, rank_inclusive); + + if (d == 0) { + witness_depth_error(witnesses, rank_inclusive, 1); + } +} + +static inline void +witness_lock(witness_tsdn_t *witness_tsdn, witness_t *witness) { + witness_tsd_t *witness_tsd; + witness_list_t *witnesses; + witness_t *w; + + if (!config_debug) { + return; + } + + if (witness_tsdn_null(witness_tsdn)) { + return; + } + witness_tsd = witness_tsdn_tsd(witness_tsdn); + if (witness->rank == WITNESS_RANK_OMIT) { + return; + } + + witness_assert_not_owner(witness_tsdn, witness); + + witnesses = &witness_tsd->witnesses; + w = ql_last(witnesses, link); + if (w == NULL) { + /* No other locks; do nothing. */ + } else if (witness_tsd->forking && w->rank <= witness->rank) { + /* Forking, and relaxed ranking satisfied. */ + } else if (w->rank > witness->rank) { + /* Not forking, rank order reversal. */ + witness_lock_error(witnesses, witness); + } else if (w->rank == witness->rank && (w->comp == NULL || w->comp != + witness->comp || w->comp(w, w->opaque, witness, witness->opaque) > + 0)) { + /* + * Missing/incompatible comparison function, or comparison + * function indicates rank order reversal. + */ + witness_lock_error(witnesses, witness); + } + + ql_elm_new(witness, link); + ql_tail_insert(witnesses, witness, link); +} + +static inline void +witness_unlock(witness_tsdn_t *witness_tsdn, witness_t *witness) { + witness_tsd_t *witness_tsd; + witness_list_t *witnesses; + + if (!config_debug) { + return; + } + + if (witness_tsdn_null(witness_tsdn)) { + return; + } + witness_tsd = witness_tsdn_tsd(witness_tsdn); + if (witness->rank == WITNESS_RANK_OMIT) { + return; + } + + /* + * Check whether owner before removal, rather than relying on + * witness_assert_owner() to abort, so that unit tests can test this + * function's failure mode without causing undefined behavior. + */ + if (witness_owner(witness_tsd, witness)) { + witnesses = &witness_tsd->witnesses; + ql_remove(witnesses, witness, link); + } else { + witness_assert_owner(witness_tsdn, witness); + } +} + +#endif /* JEMALLOC_INTERNAL_WITNESS_H */ diff --git a/deps/jemalloc/include/jemalloc/jemalloc.sh b/deps/jemalloc/include/jemalloc/jemalloc.sh new file mode 100755 index 0000000..b19b154 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc.sh @@ -0,0 +1,27 @@ +#!/bin/sh + +objroot=$1 + +cat <<EOF +#ifndef JEMALLOC_H_ +#define JEMALLOC_H_ +#ifdef __cplusplus +extern "C" { +#endif + +EOF + +for hdr in jemalloc_defs.h jemalloc_rename.h jemalloc_macros.h \ + jemalloc_protos.h jemalloc_typedefs.h jemalloc_mangle.h ; do + cat "${objroot}include/jemalloc/${hdr}" \ + | grep -v 'Generated from .* by configure\.' \ + | sed -e 's/ $//g' + echo +done + +cat <<EOF +#ifdef __cplusplus +} +#endif +#endif /* JEMALLOC_H_ */ +EOF diff --git a/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in b/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in new file mode 100644 index 0000000..cbe2fca --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in @@ -0,0 +1,54 @@ +/* Defined if __attribute__((...)) syntax is supported. */ +#undef JEMALLOC_HAVE_ATTR + +/* Defined if alloc_size attribute is supported. */ +#undef JEMALLOC_HAVE_ATTR_ALLOC_SIZE + +/* Defined if format_arg(...) attribute is supported. */ +#undef JEMALLOC_HAVE_ATTR_FORMAT_ARG + +/* Defined if format(gnu_printf, ...) attribute is supported. */ +#undef JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF + +/* Defined if format(printf, ...) attribute is supported. */ +#undef JEMALLOC_HAVE_ATTR_FORMAT_PRINTF + +/* Defined if fallthrough attribute is supported. */ +#undef JEMALLOC_HAVE_ATTR_FALLTHROUGH + +/* Defined if cold attribute is supported. */ +#undef JEMALLOC_HAVE_ATTR_COLD + +/* + * Define overrides for non-standard allocator-related functions if they are + * present on the system. + */ +#undef JEMALLOC_OVERRIDE_MEMALIGN +#undef JEMALLOC_OVERRIDE_VALLOC + +/* + * At least Linux omits the "const" in: + * + * size_t malloc_usable_size(const void *ptr); + * + * Match the operating system's prototype. + */ +#undef JEMALLOC_USABLE_SIZE_CONST + +/* + * If defined, specify throw() for the public function prototypes when compiling + * with C++. The only justification for this is to match the prototypes that + * glibc defines. + */ +#undef JEMALLOC_USE_CXX_THROW + +#ifdef _MSC_VER +# ifdef _WIN64 +# define LG_SIZEOF_PTR_WIN 3 +# else +# define LG_SIZEOF_PTR_WIN 2 +# endif +#endif + +/* sizeof(void *) == 2^LG_SIZEOF_PTR. */ +#undef LG_SIZEOF_PTR diff --git a/deps/jemalloc/include/jemalloc/jemalloc_macros.h.in b/deps/jemalloc/include/jemalloc/jemalloc_macros.h.in new file mode 100644 index 0000000..d04af34 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc_macros.h.in @@ -0,0 +1,153 @@ +#include <stdlib.h> +#include <stdbool.h> +#include <stdint.h> +#include <limits.h> +#include <strings.h> + +#define JEMALLOC_VERSION "@jemalloc_version@" +#define JEMALLOC_VERSION_MAJOR @jemalloc_version_major@ +#define JEMALLOC_VERSION_MINOR @jemalloc_version_minor@ +#define JEMALLOC_VERSION_BUGFIX @jemalloc_version_bugfix@ +#define JEMALLOC_VERSION_NREV @jemalloc_version_nrev@ +#define JEMALLOC_VERSION_GID "@jemalloc_version_gid@" +#define JEMALLOC_VERSION_GID_IDENT @jemalloc_version_gid@ + +#define MALLOCX_LG_ALIGN(la) ((int)(la)) +#if LG_SIZEOF_PTR == 2 +# define MALLOCX_ALIGN(a) ((int)(ffs((int)(a))-1)) +#else +# define MALLOCX_ALIGN(a) \ + ((int)(((size_t)(a) < (size_t)INT_MAX) ? ffs((int)(a))-1 : \ + ffs((int)(((size_t)(a))>>32))+31)) +#endif +#define MALLOCX_ZERO ((int)0x40) +/* + * Bias tcache index bits so that 0 encodes "automatic tcache management", and 1 + * encodes MALLOCX_TCACHE_NONE. + */ +#define MALLOCX_TCACHE(tc) ((int)(((tc)+2) << 8)) +#define MALLOCX_TCACHE_NONE MALLOCX_TCACHE(-1) +/* + * Bias arena index bits so that 0 encodes "use an automatically chosen arena". + */ +#define MALLOCX_ARENA(a) ((((int)(a))+1) << 20) + +/* + * Use as arena index in "arena.<i>.{purge,decay,dss}" and + * "stats.arenas.<i>.*" mallctl interfaces to select all arenas. This + * definition is intentionally specified in raw decimal format to support + * cpp-based string concatenation, e.g. + * + * #define STRINGIFY_HELPER(x) #x + * #define STRINGIFY(x) STRINGIFY_HELPER(x) + * + * mallctl("arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".purge", NULL, NULL, NULL, + * 0); + */ +#define MALLCTL_ARENAS_ALL 4096 +/* + * Use as arena index in "stats.arenas.<i>.*" mallctl interfaces to select + * destroyed arenas. + */ +#define MALLCTL_ARENAS_DESTROYED 4097 + +#if defined(__cplusplus) && defined(JEMALLOC_USE_CXX_THROW) +# define JEMALLOC_CXX_THROW throw() +#else +# define JEMALLOC_CXX_THROW +#endif + +#if defined(_MSC_VER) +# define JEMALLOC_ATTR(s) +# define JEMALLOC_ALIGNED(s) __declspec(align(s)) +# define JEMALLOC_ALLOC_SIZE(s) +# define JEMALLOC_ALLOC_SIZE2(s1, s2) +# ifndef JEMALLOC_EXPORT +# ifdef DLLEXPORT +# define JEMALLOC_EXPORT __declspec(dllexport) +# else +# define JEMALLOC_EXPORT __declspec(dllimport) +# endif +# endif +# define JEMALLOC_FORMAT_ARG(i) +# define JEMALLOC_FORMAT_PRINTF(s, i) +# define JEMALLOC_FALLTHROUGH +# define JEMALLOC_NOINLINE __declspec(noinline) +# ifdef __cplusplus +# define JEMALLOC_NOTHROW __declspec(nothrow) +# else +# define JEMALLOC_NOTHROW +# endif +# define JEMALLOC_SECTION(s) __declspec(allocate(s)) +# define JEMALLOC_RESTRICT_RETURN __declspec(restrict) +# if _MSC_VER >= 1900 && !defined(__EDG__) +# define JEMALLOC_ALLOCATOR __declspec(allocator) +# else +# define JEMALLOC_ALLOCATOR +# endif +# define JEMALLOC_COLD +#elif defined(JEMALLOC_HAVE_ATTR) +# define JEMALLOC_ATTR(s) __attribute__((s)) +# define JEMALLOC_ALIGNED(s) JEMALLOC_ATTR(aligned(s)) +# ifdef JEMALLOC_HAVE_ATTR_ALLOC_SIZE +# define JEMALLOC_ALLOC_SIZE(s) JEMALLOC_ATTR(alloc_size(s)) +# define JEMALLOC_ALLOC_SIZE2(s1, s2) JEMALLOC_ATTR(alloc_size(s1, s2)) +# else +# define JEMALLOC_ALLOC_SIZE(s) +# define JEMALLOC_ALLOC_SIZE2(s1, s2) +# endif +# ifndef JEMALLOC_EXPORT +# define JEMALLOC_EXPORT JEMALLOC_ATTR(visibility("default")) +# endif +# ifdef JEMALLOC_HAVE_ATTR_FORMAT_ARG +# define JEMALLOC_FORMAT_ARG(i) JEMALLOC_ATTR(__format_arg__(3)) +# else +# define JEMALLOC_FORMAT_ARG(i) +# endif +# ifdef JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF +# define JEMALLOC_FORMAT_PRINTF(s, i) JEMALLOC_ATTR(format(gnu_printf, s, i)) +# elif defined(JEMALLOC_HAVE_ATTR_FORMAT_PRINTF) +# define JEMALLOC_FORMAT_PRINTF(s, i) JEMALLOC_ATTR(format(printf, s, i)) +# else +# define JEMALLOC_FORMAT_PRINTF(s, i) +# endif +# ifdef JEMALLOC_HAVE_ATTR_FALLTHROUGH +# define JEMALLOC_FALLTHROUGH JEMALLOC_ATTR(fallthrough) +# else +# define JEMALLOC_FALLTHROUGH +# endif +# define JEMALLOC_NOINLINE JEMALLOC_ATTR(noinline) +# define JEMALLOC_NOTHROW JEMALLOC_ATTR(nothrow) +# define JEMALLOC_SECTION(s) JEMALLOC_ATTR(section(s)) +# define JEMALLOC_RESTRICT_RETURN +# define JEMALLOC_ALLOCATOR +# ifdef JEMALLOC_HAVE_ATTR_COLD +# define JEMALLOC_COLD JEMALLOC_ATTR(__cold__) +# else +# define JEMALLOC_COLD +# endif +#else +# define JEMALLOC_ATTR(s) +# define JEMALLOC_ALIGNED(s) +# define JEMALLOC_ALLOC_SIZE(s) +# define JEMALLOC_ALLOC_SIZE2(s1, s2) +# define JEMALLOC_EXPORT +# define JEMALLOC_FORMAT_PRINTF(s, i) +# define JEMALLOC_FALLTHROUGH +# define JEMALLOC_NOINLINE +# define JEMALLOC_NOTHROW +# define JEMALLOC_SECTION(s) +# define JEMALLOC_RESTRICT_RETURN +# define JEMALLOC_ALLOCATOR +# define JEMALLOC_COLD +#endif + +#if (defined(__APPLE__) || defined(__FreeBSD__)) && !defined(JEMALLOC_NO_RENAME) +# define JEMALLOC_SYS_NOTHROW +#else +# define JEMALLOC_SYS_NOTHROW JEMALLOC_NOTHROW +#endif + +/* This version of Jemalloc, modified for Redis, has the je_get_defrag_hint() + * function. */ +#define JEMALLOC_FRAG_HINT diff --git a/deps/jemalloc/include/jemalloc/jemalloc_mangle.sh b/deps/jemalloc/include/jemalloc/jemalloc_mangle.sh new file mode 100755 index 0000000..c675bb4 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc_mangle.sh @@ -0,0 +1,45 @@ +#!/bin/sh -eu + +public_symbols_txt=$1 +symbol_prefix=$2 + +cat <<EOF +/* + * By default application code must explicitly refer to mangled symbol names, + * so that it is possible to use jemalloc in conjunction with another allocator + * in the same application. Define JEMALLOC_MANGLE in order to cause automatic + * name mangling that matches the API prefixing that happened as a result of + * --with-mangling and/or --with-jemalloc-prefix configuration settings. + */ +#ifdef JEMALLOC_MANGLE +# ifndef JEMALLOC_NO_DEMANGLE +# define JEMALLOC_NO_DEMANGLE +# endif +EOF + +for nm in `cat ${public_symbols_txt}` ; do + n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'` + echo "# define ${n} ${symbol_prefix}${n}" +done + +cat <<EOF +#endif + +/* + * The ${symbol_prefix}* macros can be used as stable alternative names for the + * public jemalloc API if JEMALLOC_NO_DEMANGLE is defined. This is primarily + * meant for use in jemalloc itself, but it can be used by application code to + * provide isolation from the name mangling specified via --with-mangling + * and/or --with-jemalloc-prefix. + */ +#ifndef JEMALLOC_NO_DEMANGLE +EOF + +for nm in `cat ${public_symbols_txt}` ; do + n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'` + echo "# undef ${symbol_prefix}${n}" +done + +cat <<EOF +#endif +EOF diff --git a/deps/jemalloc/include/jemalloc/jemalloc_protos.h.in b/deps/jemalloc/include/jemalloc/jemalloc_protos.h.in new file mode 100644 index 0000000..356221c --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc_protos.h.in @@ -0,0 +1,71 @@ +/* + * The @je_@ prefix on the following public symbol declarations is an artifact + * of namespace management, and should be omitted in application code unless + * JEMALLOC_NO_DEMANGLE is defined (see jemalloc_mangle@install_suffix@.h). + */ +extern JEMALLOC_EXPORT const char *@je_@malloc_conf; +extern JEMALLOC_EXPORT void (*@je_@malloc_message)(void *cbopaque, + const char *s); + +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_SYS_NOTHROW *@je_@malloc(size_t size) + JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE(1); +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_SYS_NOTHROW *@je_@calloc(size_t num, size_t size) + JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE2(1, 2); +JEMALLOC_EXPORT int JEMALLOC_SYS_NOTHROW @je_@posix_memalign( + void **memptr, size_t alignment, size_t size) JEMALLOC_CXX_THROW + JEMALLOC_ATTR(nonnull(1)); +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_SYS_NOTHROW *@je_@aligned_alloc(size_t alignment, + size_t size) JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) + JEMALLOC_ALLOC_SIZE(2); +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_SYS_NOTHROW *@je_@realloc(void *ptr, size_t size) + JEMALLOC_CXX_THROW JEMALLOC_ALLOC_SIZE(2); +JEMALLOC_EXPORT void JEMALLOC_SYS_NOTHROW @je_@free(void *ptr) + JEMALLOC_CXX_THROW; + +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_NOTHROW *@je_@mallocx(size_t size, int flags) + JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE(1); +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_NOTHROW *@je_@rallocx(void *ptr, size_t size, + int flags) JEMALLOC_ALLOC_SIZE(2); +JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@xallocx(void *ptr, size_t size, + size_t extra, int flags); +JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@sallocx(const void *ptr, + int flags) JEMALLOC_ATTR(pure); +JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@dallocx(void *ptr, int flags); +JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@sdallocx(void *ptr, size_t size, + int flags); +JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@nallocx(size_t size, int flags) + JEMALLOC_ATTR(pure); + +JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@mallctl(const char *name, + void *oldp, size_t *oldlenp, void *newp, size_t newlen); +JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@mallctlnametomib(const char *name, + size_t *mibp, size_t *miblenp); +JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@mallctlbymib(const size_t *mib, + size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen); +JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@malloc_stats_print( + void (*write_cb)(void *, const char *), void *@je_@cbopaque, + const char *opts); +JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@malloc_usable_size( + JEMALLOC_USABLE_SIZE_CONST void *ptr) JEMALLOC_CXX_THROW; +#ifdef JEMALLOC_HAVE_MALLOC_SIZE +JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@malloc_size( + const void *ptr); +#endif + +#ifdef JEMALLOC_OVERRIDE_MEMALIGN +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_SYS_NOTHROW *@je_@memalign(size_t alignment, size_t size) + JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc); +#endif + +#ifdef JEMALLOC_OVERRIDE_VALLOC +JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN + void JEMALLOC_SYS_NOTHROW *@je_@valloc(size_t size) JEMALLOC_CXX_THROW + JEMALLOC_ATTR(malloc); +#endif diff --git a/deps/jemalloc/include/jemalloc/jemalloc_rename.sh b/deps/jemalloc/include/jemalloc/jemalloc_rename.sh new file mode 100755 index 0000000..f943891 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc_rename.sh @@ -0,0 +1,22 @@ +#!/bin/sh + +public_symbols_txt=$1 + +cat <<EOF +/* + * Name mangling for public symbols is controlled by --with-mangling and + * --with-jemalloc-prefix. With default settings the je_ prefix is stripped by + * these macro definitions. + */ +#ifndef JEMALLOC_NO_RENAME +EOF + +for nm in `cat ${public_symbols_txt}` ; do + n=`echo ${nm} |tr ':' ' ' |awk '{print $1}'` + m=`echo ${nm} |tr ':' ' ' |awk '{print $2}'` + echo "# define je_${n} ${m}" +done + +cat <<EOF +#endif +EOF diff --git a/deps/jemalloc/include/jemalloc/jemalloc_typedefs.h.in b/deps/jemalloc/include/jemalloc/jemalloc_typedefs.h.in new file mode 100644 index 0000000..1a58874 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/jemalloc_typedefs.h.in @@ -0,0 +1,77 @@ +typedef struct extent_hooks_s extent_hooks_t; + +/* + * void * + * extent_alloc(extent_hooks_t *extent_hooks, void *new_addr, size_t size, + * size_t alignment, bool *zero, bool *commit, unsigned arena_ind); + */ +typedef void *(extent_alloc_t)(extent_hooks_t *, void *, size_t, size_t, bool *, + bool *, unsigned); + +/* + * bool + * extent_dalloc(extent_hooks_t *extent_hooks, void *addr, size_t size, + * bool committed, unsigned arena_ind); + */ +typedef bool (extent_dalloc_t)(extent_hooks_t *, void *, size_t, bool, + unsigned); + +/* + * void + * extent_destroy(extent_hooks_t *extent_hooks, void *addr, size_t size, + * bool committed, unsigned arena_ind); + */ +typedef void (extent_destroy_t)(extent_hooks_t *, void *, size_t, bool, + unsigned); + +/* + * bool + * extent_commit(extent_hooks_t *extent_hooks, void *addr, size_t size, + * size_t offset, size_t length, unsigned arena_ind); + */ +typedef bool (extent_commit_t)(extent_hooks_t *, void *, size_t, size_t, size_t, + unsigned); + +/* + * bool + * extent_decommit(extent_hooks_t *extent_hooks, void *addr, size_t size, + * size_t offset, size_t length, unsigned arena_ind); + */ +typedef bool (extent_decommit_t)(extent_hooks_t *, void *, size_t, size_t, + size_t, unsigned); + +/* + * bool + * extent_purge(extent_hooks_t *extent_hooks, void *addr, size_t size, + * size_t offset, size_t length, unsigned arena_ind); + */ +typedef bool (extent_purge_t)(extent_hooks_t *, void *, size_t, size_t, size_t, + unsigned); + +/* + * bool + * extent_split(extent_hooks_t *extent_hooks, void *addr, size_t size, + * size_t size_a, size_t size_b, bool committed, unsigned arena_ind); + */ +typedef bool (extent_split_t)(extent_hooks_t *, void *, size_t, size_t, size_t, + bool, unsigned); + +/* + * bool + * extent_merge(extent_hooks_t *extent_hooks, void *addr_a, size_t size_a, + * void *addr_b, size_t size_b, bool committed, unsigned arena_ind); + */ +typedef bool (extent_merge_t)(extent_hooks_t *, void *, size_t, void *, size_t, + bool, unsigned); + +struct extent_hooks_s { + extent_alloc_t *alloc; + extent_dalloc_t *dalloc; + extent_destroy_t *destroy; + extent_commit_t *commit; + extent_decommit_t *decommit; + extent_purge_t *purge_lazy; + extent_purge_t *purge_forced; + extent_split_t *split; + extent_merge_t *merge; +}; diff --git a/deps/jemalloc/include/msvc_compat/C99/stdbool.h b/deps/jemalloc/include/msvc_compat/C99/stdbool.h new file mode 100644 index 0000000..d92160e --- /dev/null +++ b/deps/jemalloc/include/msvc_compat/C99/stdbool.h @@ -0,0 +1,20 @@ +#ifndef stdbool_h +#define stdbool_h + +#include <wtypes.h> + +/* MSVC doesn't define _Bool or bool in C, but does have BOOL */ +/* Note this doesn't pass autoconf's test because (bool) 0.5 != true */ +/* Clang-cl uses MSVC headers, so needs msvc_compat, but has _Bool as + * a built-in type. */ +#ifndef __clang__ +typedef BOOL _Bool; +#endif + +#define bool _Bool +#define true 1 +#define false 0 + +#define __bool_true_false_are_defined 1 + +#endif /* stdbool_h */ diff --git a/deps/jemalloc/include/msvc_compat/C99/stdint.h b/deps/jemalloc/include/msvc_compat/C99/stdint.h new file mode 100644 index 0000000..d02608a --- /dev/null +++ b/deps/jemalloc/include/msvc_compat/C99/stdint.h @@ -0,0 +1,247 @@ +// ISO C9x compliant stdint.h for Microsoft Visual Studio +// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 +// +// Copyright (c) 2006-2008 Alexander Chemeris +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// 3. The name of the author may be used to endorse or promote products +// derived from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED +// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO +// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; +// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF +// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef _MSC_VER // [ +#error "Use this header only with Microsoft Visual C++ compilers!" +#endif // _MSC_VER ] + +#ifndef _MSC_STDINT_H_ // [ +#define _MSC_STDINT_H_ + +#if _MSC_VER > 1000 +#pragma once +#endif + +#include <limits.h> + +// For Visual Studio 6 in C++ mode and for many Visual Studio versions when +// compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}' +// or compiler give many errors like this: +// error C2733: second C linkage of overloaded function 'wmemchr' not allowed +#ifdef __cplusplus +extern "C" { +#endif +# include <wchar.h> +#ifdef __cplusplus +} +#endif + +// Define _W64 macros to mark types changing their size, like intptr_t. +#ifndef _W64 +# if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 +# define _W64 __w64 +# else +# define _W64 +# endif +#endif + + +// 7.18.1 Integer types + +// 7.18.1.1 Exact-width integer types + +// Visual Studio 6 and Embedded Visual C++ 4 doesn't +// realize that, e.g. char has the same size as __int8 +// so we give up on __intX for them. +#if (_MSC_VER < 1300) + typedef signed char int8_t; + typedef signed short int16_t; + typedef signed int int32_t; + typedef unsigned char uint8_t; + typedef unsigned short uint16_t; + typedef unsigned int uint32_t; +#else + typedef signed __int8 int8_t; + typedef signed __int16 int16_t; + typedef signed __int32 int32_t; + typedef unsigned __int8 uint8_t; + typedef unsigned __int16 uint16_t; + typedef unsigned __int32 uint32_t; +#endif +typedef signed __int64 int64_t; +typedef unsigned __int64 uint64_t; + + +// 7.18.1.2 Minimum-width integer types +typedef int8_t int_least8_t; +typedef int16_t int_least16_t; +typedef int32_t int_least32_t; +typedef int64_t int_least64_t; +typedef uint8_t uint_least8_t; +typedef uint16_t uint_least16_t; +typedef uint32_t uint_least32_t; +typedef uint64_t uint_least64_t; + +// 7.18.1.3 Fastest minimum-width integer types +typedef int8_t int_fast8_t; +typedef int16_t int_fast16_t; +typedef int32_t int_fast32_t; +typedef int64_t int_fast64_t; +typedef uint8_t uint_fast8_t; +typedef uint16_t uint_fast16_t; +typedef uint32_t uint_fast32_t; +typedef uint64_t uint_fast64_t; + +// 7.18.1.4 Integer types capable of holding object pointers +#ifdef _WIN64 // [ + typedef signed __int64 intptr_t; + typedef unsigned __int64 uintptr_t; +#else // _WIN64 ][ + typedef _W64 signed int intptr_t; + typedef _W64 unsigned int uintptr_t; +#endif // _WIN64 ] + +// 7.18.1.5 Greatest-width integer types +typedef int64_t intmax_t; +typedef uint64_t uintmax_t; + + +// 7.18.2 Limits of specified-width integer types + +#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259 + +// 7.18.2.1 Limits of exact-width integer types +#define INT8_MIN ((int8_t)_I8_MIN) +#define INT8_MAX _I8_MAX +#define INT16_MIN ((int16_t)_I16_MIN) +#define INT16_MAX _I16_MAX +#define INT32_MIN ((int32_t)_I32_MIN) +#define INT32_MAX _I32_MAX +#define INT64_MIN ((int64_t)_I64_MIN) +#define INT64_MAX _I64_MAX +#define UINT8_MAX _UI8_MAX +#define UINT16_MAX _UI16_MAX +#define UINT32_MAX _UI32_MAX +#define UINT64_MAX _UI64_MAX + +// 7.18.2.2 Limits of minimum-width integer types +#define INT_LEAST8_MIN INT8_MIN +#define INT_LEAST8_MAX INT8_MAX +#define INT_LEAST16_MIN INT16_MIN +#define INT_LEAST16_MAX INT16_MAX +#define INT_LEAST32_MIN INT32_MIN +#define INT_LEAST32_MAX INT32_MAX +#define INT_LEAST64_MIN INT64_MIN +#define INT_LEAST64_MAX INT64_MAX +#define UINT_LEAST8_MAX UINT8_MAX +#define UINT_LEAST16_MAX UINT16_MAX +#define UINT_LEAST32_MAX UINT32_MAX +#define UINT_LEAST64_MAX UINT64_MAX + +// 7.18.2.3 Limits of fastest minimum-width integer types +#define INT_FAST8_MIN INT8_MIN +#define INT_FAST8_MAX INT8_MAX +#define INT_FAST16_MIN INT16_MIN +#define INT_FAST16_MAX INT16_MAX +#define INT_FAST32_MIN INT32_MIN +#define INT_FAST32_MAX INT32_MAX +#define INT_FAST64_MIN INT64_MIN +#define INT_FAST64_MAX INT64_MAX +#define UINT_FAST8_MAX UINT8_MAX +#define UINT_FAST16_MAX UINT16_MAX +#define UINT_FAST32_MAX UINT32_MAX +#define UINT_FAST64_MAX UINT64_MAX + +// 7.18.2.4 Limits of integer types capable of holding object pointers +#ifdef _WIN64 // [ +# define INTPTR_MIN INT64_MIN +# define INTPTR_MAX INT64_MAX +# define UINTPTR_MAX UINT64_MAX +#else // _WIN64 ][ +# define INTPTR_MIN INT32_MIN +# define INTPTR_MAX INT32_MAX +# define UINTPTR_MAX UINT32_MAX +#endif // _WIN64 ] + +// 7.18.2.5 Limits of greatest-width integer types +#define INTMAX_MIN INT64_MIN +#define INTMAX_MAX INT64_MAX +#define UINTMAX_MAX UINT64_MAX + +// 7.18.3 Limits of other integer types + +#ifdef _WIN64 // [ +# define PTRDIFF_MIN _I64_MIN +# define PTRDIFF_MAX _I64_MAX +#else // _WIN64 ][ +# define PTRDIFF_MIN _I32_MIN +# define PTRDIFF_MAX _I32_MAX +#endif // _WIN64 ] + +#define SIG_ATOMIC_MIN INT_MIN +#define SIG_ATOMIC_MAX INT_MAX + +#ifndef SIZE_MAX // [ +# ifdef _WIN64 // [ +# define SIZE_MAX _UI64_MAX +# else // _WIN64 ][ +# define SIZE_MAX _UI32_MAX +# endif // _WIN64 ] +#endif // SIZE_MAX ] + +// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h> +#ifndef WCHAR_MIN // [ +# define WCHAR_MIN 0 +#endif // WCHAR_MIN ] +#ifndef WCHAR_MAX // [ +# define WCHAR_MAX _UI16_MAX +#endif // WCHAR_MAX ] + +#define WINT_MIN 0 +#define WINT_MAX _UI16_MAX + +#endif // __STDC_LIMIT_MACROS ] + + +// 7.18.4 Limits of other integer types + +#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260 + +// 7.18.4.1 Macros for minimum-width integer constants + +#define INT8_C(val) val##i8 +#define INT16_C(val) val##i16 +#define INT32_C(val) val##i32 +#define INT64_C(val) val##i64 + +#define UINT8_C(val) val##ui8 +#define UINT16_C(val) val##ui16 +#define UINT32_C(val) val##ui32 +#define UINT64_C(val) val##ui64 + +// 7.18.4.2 Macros for greatest-width integer constants +#define INTMAX_C INT64_C +#define UINTMAX_C UINT64_C + +#endif // __STDC_CONSTANT_MACROS ] + + +#endif // _MSC_STDINT_H_ ] diff --git a/deps/jemalloc/include/msvc_compat/strings.h b/deps/jemalloc/include/msvc_compat/strings.h new file mode 100644 index 0000000..996f256 --- /dev/null +++ b/deps/jemalloc/include/msvc_compat/strings.h @@ -0,0 +1,58 @@ +#ifndef strings_h +#define strings_h + +/* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided + * for both */ +#ifdef _MSC_VER +# include <intrin.h> +# pragma intrinsic(_BitScanForward) +static __forceinline int ffsl(long x) { + unsigned long i; + + if (_BitScanForward(&i, x)) { + return i + 1; + } + return 0; +} + +static __forceinline int ffs(int x) { + return ffsl(x); +} + +# ifdef _M_X64 +# pragma intrinsic(_BitScanForward64) +# endif + +static __forceinline int ffsll(unsigned __int64 x) { + unsigned long i; +#ifdef _M_X64 + if (_BitScanForward64(&i, x)) { + return i + 1; + } + return 0; +#else +// Fallback for 32-bit build where 64-bit version not available +// assuming little endian + union { + unsigned __int64 ll; + unsigned long l[2]; + } s; + + s.ll = x; + + if (_BitScanForward(&i, s.l[0])) { + return i + 1; + } else if(_BitScanForward(&i, s.l[1])) { + return i + 33; + } + return 0; +#endif +} + +#else +# define ffsll(x) __builtin_ffsll(x) +# define ffsl(x) __builtin_ffsl(x) +# define ffs(x) __builtin_ffs(x) +#endif + +#endif /* strings_h */ diff --git a/deps/jemalloc/include/msvc_compat/windows_extra.h b/deps/jemalloc/include/msvc_compat/windows_extra.h new file mode 100644 index 0000000..a6ebb93 --- /dev/null +++ b/deps/jemalloc/include/msvc_compat/windows_extra.h @@ -0,0 +1,6 @@ +#ifndef MSVC_COMPAT_WINDOWS_EXTRA_H +#define MSVC_COMPAT_WINDOWS_EXTRA_H + +#include <errno.h> + +#endif /* MSVC_COMPAT_WINDOWS_EXTRA_H */ |