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Diffstat (limited to '')
| -rw-r--r-- | ta/ta.h | 157 |
1 files changed, 157 insertions, 0 deletions
@@ -0,0 +1,157 @@ +/* Copyright (C) 2017 the mpv developers + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef TA_H_ +#define TA_H_ + +#include <stddef.h> +#include <stdbool.h> +#include <stdarg.h> + +#ifdef __GNUC__ +#define TA_PRF(a1, a2) __attribute__ ((format(printf, a1, a2))) +#define TA_TYPEOF(t) __typeof__(t) +#else +#define TA_PRF(a1, a2) +#define TA_TYPEOF(t) void * +#endif + +// Broken crap with __USE_MINGW_ANSI_STDIO +#if defined(__MINGW32__) && defined(__GNUC__) && !defined(__clang__) +#undef TA_PRF +#define TA_PRF(a1, a2) __attribute__ ((format (gnu_printf, a1, a2))) +#endif + +#define TA_STRINGIFY_(x) # x +#define TA_STRINGIFY(x) TA_STRINGIFY_(x) + +#ifdef NDEBUG +#define TA_LOC "" +#else +#define TA_LOC __FILE__ ":" TA_STRINGIFY(__LINE__) +#endif + +// Core functions +void *ta_alloc_size(void *ta_parent, size_t size); +void *ta_zalloc_size(void *ta_parent, size_t size); +void *ta_realloc_size(void *ta_parent, void *ptr, size_t size); +size_t ta_get_size(void *ptr); +void ta_free(void *ptr); +void ta_free_children(void *ptr); +void ta_set_destructor(void *ptr, void (*destructor)(void *)); +void ta_set_parent(void *ptr, void *ta_parent); +void *ta_get_parent(void *ptr); + +// Utility functions +size_t ta_calc_array_size(size_t element_size, size_t count); +size_t ta_calc_prealloc_elems(size_t nextidx); +void *ta_new_context(void *ta_parent); +void *ta_steal_(void *ta_parent, void *ptr); +void *ta_memdup(void *ta_parent, void *ptr, size_t size); +char *ta_strdup(void *ta_parent, const char *str); +bool ta_strdup_append(char **str, const char *a); +bool ta_strdup_append_buffer(char **str, const char *a); +char *ta_strndup(void *ta_parent, const char *str, size_t n); +bool ta_strndup_append(char **str, const char *a, size_t n); +bool ta_strndup_append_buffer(char **str, const char *a, size_t n); +char *ta_asprintf(void *ta_parent, const char *fmt, ...) TA_PRF(2, 3); +char *ta_vasprintf(void *ta_parent, const char *fmt, va_list ap) TA_PRF(2, 0); +bool ta_asprintf_append(char **str, const char *fmt, ...) TA_PRF(2, 3); +bool ta_vasprintf_append(char **str, const char *fmt, va_list ap) TA_PRF(2, 0); +bool ta_asprintf_append_buffer(char **str, const char *fmt, ...) TA_PRF(2, 3); +bool ta_vasprintf_append_buffer(char **str, const char *fmt, va_list ap) TA_PRF(2, 0); + +#define ta_new(ta_parent, type) (type *)ta_alloc_size(ta_parent, sizeof(type)) +#define ta_znew(ta_parent, type) (type *)ta_zalloc_size(ta_parent, sizeof(type)) + +#define ta_new_array(ta_parent, type, count) \ + (type *)ta_alloc_size(ta_parent, ta_calc_array_size(sizeof(type), count)) + +#define ta_znew_array(ta_parent, type, count) \ + (type *)ta_zalloc_size(ta_parent, ta_calc_array_size(sizeof(type), count)) + +#define ta_new_array_size(ta_parent, element_size, count) \ + ta_alloc_size(ta_parent, ta_calc_array_size(element_size, count)) + +#define ta_realloc(ta_parent, ptr, type, count) \ + (type *)ta_realloc_size(ta_parent, ptr, ta_calc_array_size(sizeof(type), count)) + +#define ta_new_ptrtype(ta_parent, ptr) \ + (TA_TYPEOF(ptr))ta_alloc_size(ta_parent, sizeof(*ptr)) + +#define ta_new_array_ptrtype(ta_parent, ptr, count) \ + (TA_TYPEOF(ptr))ta_new_array_size(ta_parent, sizeof(*(ptr)), count) + +#define ta_steal(ta_parent, ptr) (TA_TYPEOF(ptr))ta_steal_(ta_parent, ptr) + +#define ta_dup(ta_parent, ptr) \ + (TA_TYPEOF(ptr))ta_memdup(ta_parent, ptr, sizeof(*(ptr))) + +// Ugly macros that crash on OOM. +// All of these mirror real functions (with a 'x' added after the 'ta_' +// prefix), and the only difference is that they will call abort() on allocation +// failures (such as out of memory conditions), instead of returning an error +// code. +#define ta_xalloc_size(...) ta_oom_p(ta_alloc_size(__VA_ARGS__)) +#define ta_xzalloc_size(...) ta_oom_p(ta_zalloc_size(__VA_ARGS__)) +#define ta_xnew_context(...) ta_oom_p(ta_new_context(__VA_ARGS__)) +#define ta_xstrdup_append(...) ta_oom_b(ta_strdup_append(__VA_ARGS__)) +#define ta_xstrdup_append_buffer(...) ta_oom_b(ta_strdup_append_buffer(__VA_ARGS__)) +#define ta_xstrndup_append(...) ta_oom_b(ta_strndup_append(__VA_ARGS__)) +#define ta_xstrndup_append_buffer(...) ta_oom_b(ta_strndup_append_buffer(__VA_ARGS__)) +#define ta_xasprintf(...) ta_oom_s(ta_asprintf(__VA_ARGS__)) +#define ta_xvasprintf(...) ta_oom_s(ta_vasprintf(__VA_ARGS__)) +#define ta_xasprintf_append(...) ta_oom_b(ta_asprintf_append(__VA_ARGS__)) +#define ta_xvasprintf_append(...) ta_oom_b(ta_vasprintf_append(__VA_ARGS__)) +#define ta_xasprintf_append_buffer(...) ta_oom_b(ta_asprintf_append_buffer(__VA_ARGS__)) +#define ta_xvasprintf_append_buffer(...) ta_oom_b(ta_vasprintf_append_buffer(__VA_ARGS__)) +#define ta_xnew(...) ta_oom_g(ta_new(__VA_ARGS__)) +#define ta_xznew(...) ta_oom_g(ta_znew(__VA_ARGS__)) +#define ta_xnew_array(...) ta_oom_g(ta_new_array(__VA_ARGS__)) +#define ta_xznew_array(...) ta_oom_g(ta_znew_array(__VA_ARGS__)) +#define ta_xnew_array_size(...) ta_oom_p(ta_new_array_size(__VA_ARGS__)) +#define ta_xnew_ptrtype(...) ta_oom_g(ta_new_ptrtype(__VA_ARGS__)) +#define ta_xnew_array_ptrtype(...) ta_oom_g(ta_new_array_ptrtype(__VA_ARGS__)) +#define ta_xdup(...) ta_oom_g(ta_dup(__VA_ARGS__)) + +#define ta_xrealloc(ta_parent, ptr, type, count) \ + (type *)ta_xrealloc_size(ta_parent, ptr, ta_calc_array_size(sizeof(type), count)) + +// Can't be macros, because the OOM logic is slightly less trivial. +char *ta_xstrdup(void *ta_parent, const char *str); +char *ta_xstrndup(void *ta_parent, const char *str, size_t n); +void *ta_xmemdup(void *ta_parent, void *ptr, size_t size); +void *ta_xrealloc_size(void *ta_parent, void *ptr, size_t size); + +#ifndef TA_NO_WRAPPERS +#define ta_alloc_size(...) ta_dbg_set_loc(ta_alloc_size(__VA_ARGS__), TA_LOC) +#define ta_zalloc_size(...) ta_dbg_set_loc(ta_zalloc_size(__VA_ARGS__), TA_LOC) +#define ta_realloc_size(...) ta_dbg_set_loc(ta_realloc_size(__VA_ARGS__), TA_LOC) +#define ta_memdup(...) ta_dbg_set_loc(ta_memdup(__VA_ARGS__), TA_LOC) +#define ta_xmemdup(...) ta_dbg_set_loc(ta_xmemdup(__VA_ARGS__), TA_LOC) +#define ta_xrealloc_size(...) ta_dbg_set_loc(ta_xrealloc_size(__VA_ARGS__), TA_LOC) +#endif + +void ta_oom_b(bool b); +char *ta_oom_s(char *s); +void *ta_oom_p(void *p); +// Generic pointer +#define ta_oom_g(ptr) (TA_TYPEOF(ptr))ta_oom_p(ptr) + +void ta_enable_leak_report(void); +void *ta_dbg_set_loc(void *ptr, const char *name); +void *ta_dbg_mark_as_string(void *ptr); + +#endif |