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Diffstat (limited to '')
| -rw-r--r-- | deps/jemalloc/test/unit/base.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/deps/jemalloc/test/unit/base.c b/deps/jemalloc/test/unit/base.c new file mode 100644 index 0000000..6b792cf --- /dev/null +++ b/deps/jemalloc/test/unit/base.c @@ -0,0 +1,234 @@ +#include "test/jemalloc_test.h" + +#include "test/extent_hooks.h" + +static extent_hooks_t hooks_null = { + extent_alloc_hook, + NULL, /* dalloc */ + NULL, /* destroy */ + NULL, /* commit */ + NULL, /* decommit */ + NULL, /* purge_lazy */ + NULL, /* purge_forced */ + NULL, /* split */ + NULL /* merge */ +}; + +static extent_hooks_t hooks_not_null = { + extent_alloc_hook, + extent_dalloc_hook, + extent_destroy_hook, + NULL, /* commit */ + extent_decommit_hook, + extent_purge_lazy_hook, + extent_purge_forced_hook, + NULL, /* split */ + NULL /* merge */ +}; + +TEST_BEGIN(test_base_hooks_default) { + base_t *base; + size_t allocated0, allocated1, resident, mapped, n_thp; + + tsdn_t *tsdn = tsd_tsdn(tsd_fetch()); + base = base_new(tsdn, 0, (extent_hooks_t *)&extent_hooks_default); + + if (config_stats) { + base_stats_get(tsdn, base, &allocated0, &resident, &mapped, + &n_thp); + assert_zu_ge(allocated0, sizeof(base_t), + "Base header should count as allocated"); + if (opt_metadata_thp == metadata_thp_always) { + assert_zu_gt(n_thp, 0, + "Base should have 1 THP at least."); + } + } + + assert_ptr_not_null(base_alloc(tsdn, base, 42, 1), + "Unexpected base_alloc() failure"); + + if (config_stats) { + base_stats_get(tsdn, base, &allocated1, &resident, &mapped, + &n_thp); + assert_zu_ge(allocated1 - allocated0, 42, + "At least 42 bytes were allocated by base_alloc()"); + } + + base_delete(tsdn, base); +} +TEST_END + +TEST_BEGIN(test_base_hooks_null) { + extent_hooks_t hooks_orig; + base_t *base; + size_t allocated0, allocated1, resident, mapped, n_thp; + + extent_hooks_prep(); + try_dalloc = false; + try_destroy = true; + try_decommit = false; + try_purge_lazy = false; + try_purge_forced = false; + memcpy(&hooks_orig, &hooks, sizeof(extent_hooks_t)); + memcpy(&hooks, &hooks_null, sizeof(extent_hooks_t)); + + tsdn_t *tsdn = tsd_tsdn(tsd_fetch()); + base = base_new(tsdn, 0, &hooks); + assert_ptr_not_null(base, "Unexpected base_new() failure"); + + if (config_stats) { + base_stats_get(tsdn, base, &allocated0, &resident, &mapped, + &n_thp); + assert_zu_ge(allocated0, sizeof(base_t), + "Base header should count as allocated"); + if (opt_metadata_thp == metadata_thp_always) { + assert_zu_gt(n_thp, 0, + "Base should have 1 THP at least."); + } + } + + assert_ptr_not_null(base_alloc(tsdn, base, 42, 1), + "Unexpected base_alloc() failure"); + + if (config_stats) { + base_stats_get(tsdn, base, &allocated1, &resident, &mapped, + &n_thp); + assert_zu_ge(allocated1 - allocated0, 42, + "At least 42 bytes were allocated by base_alloc()"); + } + + base_delete(tsdn, base); + + memcpy(&hooks, &hooks_orig, sizeof(extent_hooks_t)); +} +TEST_END + +TEST_BEGIN(test_base_hooks_not_null) { + extent_hooks_t hooks_orig; + base_t *base; + void *p, *q, *r, *r_exp; + + extent_hooks_prep(); + try_dalloc = false; + try_destroy = true; + try_decommit = false; + try_purge_lazy = false; + try_purge_forced = false; + memcpy(&hooks_orig, &hooks, sizeof(extent_hooks_t)); + memcpy(&hooks, &hooks_not_null, sizeof(extent_hooks_t)); + + tsdn_t *tsdn = tsd_tsdn(tsd_fetch()); + did_alloc = false; + base = base_new(tsdn, 0, &hooks); + assert_ptr_not_null(base, "Unexpected base_new() failure"); + assert_true(did_alloc, "Expected alloc"); + + /* + * Check for tight packing at specified alignment under simple + * conditions. + */ + { + const size_t alignments[] = { + 1, + QUANTUM, + QUANTUM << 1, + CACHELINE, + CACHELINE << 1, + }; + unsigned i; + + for (i = 0; i < sizeof(alignments) / sizeof(size_t); i++) { + size_t alignment = alignments[i]; + size_t align_ceil = ALIGNMENT_CEILING(alignment, + QUANTUM); + p = base_alloc(tsdn, base, 1, alignment); + assert_ptr_not_null(p, + "Unexpected base_alloc() failure"); + assert_ptr_eq(p, + (void *)(ALIGNMENT_CEILING((uintptr_t)p, + alignment)), "Expected quantum alignment"); + q = base_alloc(tsdn, base, alignment, alignment); + assert_ptr_not_null(q, + "Unexpected base_alloc() failure"); + assert_ptr_eq((void *)((uintptr_t)p + align_ceil), q, + "Minimal allocation should take up %zu bytes", + align_ceil); + r = base_alloc(tsdn, base, 1, alignment); + assert_ptr_not_null(r, + "Unexpected base_alloc() failure"); + assert_ptr_eq((void *)((uintptr_t)q + align_ceil), r, + "Minimal allocation should take up %zu bytes", + align_ceil); + } + } + + /* + * Allocate an object that cannot fit in the first block, then verify + * that the first block's remaining space is considered for subsequent + * allocation. + */ + assert_zu_ge(extent_bsize_get(&base->blocks->extent), QUANTUM, + "Remainder insufficient for test"); + /* Use up all but one quantum of block. */ + while (extent_bsize_get(&base->blocks->extent) > QUANTUM) { + p = base_alloc(tsdn, base, QUANTUM, QUANTUM); + assert_ptr_not_null(p, "Unexpected base_alloc() failure"); + } + r_exp = extent_addr_get(&base->blocks->extent); + assert_zu_eq(base->extent_sn_next, 1, "One extant block expected"); + q = base_alloc(tsdn, base, QUANTUM + 1, QUANTUM); + assert_ptr_not_null(q, "Unexpected base_alloc() failure"); + assert_ptr_ne(q, r_exp, "Expected allocation from new block"); + assert_zu_eq(base->extent_sn_next, 2, "Two extant blocks expected"); + r = base_alloc(tsdn, base, QUANTUM, QUANTUM); + assert_ptr_not_null(r, "Unexpected base_alloc() failure"); + assert_ptr_eq(r, r_exp, "Expected allocation from first block"); + assert_zu_eq(base->extent_sn_next, 2, "Two extant blocks expected"); + + /* + * Check for proper alignment support when normal blocks are too small. + */ + { + const size_t alignments[] = { + HUGEPAGE, + HUGEPAGE << 1 + }; + unsigned i; + + for (i = 0; i < sizeof(alignments) / sizeof(size_t); i++) { + size_t alignment = alignments[i]; + p = base_alloc(tsdn, base, QUANTUM, alignment); + assert_ptr_not_null(p, + "Unexpected base_alloc() failure"); + assert_ptr_eq(p, + (void *)(ALIGNMENT_CEILING((uintptr_t)p, + alignment)), "Expected %zu-byte alignment", + alignment); + } + } + + called_dalloc = called_destroy = called_decommit = called_purge_lazy = + called_purge_forced = false; + base_delete(tsdn, base); + assert_true(called_dalloc, "Expected dalloc call"); + assert_true(!called_destroy, "Unexpected destroy call"); + assert_true(called_decommit, "Expected decommit call"); + assert_true(called_purge_lazy, "Expected purge_lazy call"); + assert_true(called_purge_forced, "Expected purge_forced call"); + + try_dalloc = true; + try_destroy = true; + try_decommit = true; + try_purge_lazy = true; + try_purge_forced = true; + memcpy(&hooks, &hooks_orig, sizeof(extent_hooks_t)); +} +TEST_END + +int +main(void) { + return test( + test_base_hooks_default, + test_base_hooks_null, + test_base_hooks_not_null); +} |