mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 06:42:03 +00:00
bbfafb5614
The license text refers a "above copyright notice", so I guess it'd be good to actually provide such a notice. Add the license to some files that were missing it (since in theory, our Copyright file says that such files are LGPL by default). Remove the questionable remarks about the license in the client API.
162 lines
7.3 KiB
C
162 lines
7.3 KiB
C
/* Copyright (C) 2017 the mpv developers
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef TA_H_
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#define TA_H_
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#include <stddef.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#ifdef __GNUC__
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#define TA_PRF(a1, a2) __attribute__ ((format(printf, a1, a2)))
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#define TA_TYPEOF(t) __typeof__(t)
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#else
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#define TA_PRF(a1, a2)
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#define TA_TYPEOF(t) void *
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#endif
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// Broken crap with __USE_MINGW_ANSI_STDIO
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#if defined(__MINGW32__) && defined(__GNUC__) && !defined(__clang__)
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#undef TA_PRF
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#define TA_PRF(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))
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#endif
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#define TA_STRINGIFY_(x) # x
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#define TA_STRINGIFY(x) TA_STRINGIFY_(x)
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#ifdef NDEBUG
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#define TA_LOC ""
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#else
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#define TA_LOC __FILE__ ":" TA_STRINGIFY(__LINE__)
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#endif
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// Core functions
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void *ta_alloc_size(void *ta_parent, size_t size);
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void *ta_zalloc_size(void *ta_parent, size_t size);
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void *ta_realloc_size(void *ta_parent, void *ptr, size_t size);
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size_t ta_get_size(void *ptr);
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void ta_free(void *ptr);
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void ta_free_children(void *ptr);
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bool ta_set_destructor(void *ptr, void (*destructor)(void *));
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bool ta_set_parent(void *ptr, void *ta_parent);
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void *ta_find_parent(void *ptr);
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// Utility functions
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size_t ta_calc_array_size(size_t element_size, size_t count);
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size_t ta_calc_prealloc_elems(size_t nextidx);
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void *ta_new_context(void *ta_parent);
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void *ta_steal_(void *ta_parent, void *ptr);
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void *ta_memdup(void *ta_parent, void *ptr, size_t size);
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char *ta_strdup(void *ta_parent, const char *str);
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bool ta_strdup_append(char **str, const char *a);
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bool ta_strdup_append_buffer(char **str, const char *a);
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char *ta_strndup(void *ta_parent, const char *str, size_t n);
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bool ta_strndup_append(char **str, const char *a, size_t n);
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bool ta_strndup_append_buffer(char **str, const char *a, size_t n);
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char *ta_asprintf(void *ta_parent, const char *fmt, ...) TA_PRF(2, 3);
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char *ta_vasprintf(void *ta_parent, const char *fmt, va_list ap) TA_PRF(2, 0);
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bool ta_asprintf_append(char **str, const char *fmt, ...) TA_PRF(2, 3);
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bool ta_vasprintf_append(char **str, const char *fmt, va_list ap) TA_PRF(2, 0);
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bool ta_asprintf_append_buffer(char **str, const char *fmt, ...) TA_PRF(2, 3);
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bool ta_vasprintf_append_buffer(char **str, const char *fmt, va_list ap) TA_PRF(2, 0);
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#define ta_new(ta_parent, type) (type *)ta_alloc_size(ta_parent, sizeof(type))
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#define ta_znew(ta_parent, type) (type *)ta_zalloc_size(ta_parent, sizeof(type))
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#define ta_new_array(ta_parent, type, count) \
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(type *)ta_alloc_size(ta_parent, ta_calc_array_size(sizeof(type), count))
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#define ta_znew_array(ta_parent, type, count) \
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(type *)ta_zalloc_size(ta_parent, ta_calc_array_size(sizeof(type), count))
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#define ta_new_array_size(ta_parent, element_size, count) \
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ta_alloc_size(ta_parent, ta_calc_array_size(element_size, count))
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#define ta_realloc(ta_parent, ptr, type, count) \
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(type *)ta_realloc_size(ta_parent, ptr, ta_calc_array_size(sizeof(type), count))
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#define ta_new_ptrtype(ta_parent, ptr) \
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(TA_TYPEOF(ptr))ta_alloc_size(ta_parent, sizeof(*ptr))
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#define ta_new_array_ptrtype(ta_parent, ptr, count) \
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(TA_TYPEOF(ptr))ta_new_array_size(ta_parent, sizeof(*(ptr)), count)
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#define ta_steal(ta_parent, ptr) (TA_TYPEOF(ptr))ta_steal_(ta_parent, ptr)
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#define ta_dup_ptrtype(ta_parent, ptr) \
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(TA_TYPEOF(ptr))ta_memdup(ta_parent, ptr, sizeof(*(ptr)))
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// Ugly macros that crash on OOM.
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// All of these mirror real functions (with a 'x' added after the 'ta_'
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// prefix), and the only difference is that they will call abort() on allocation
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// failures (such as out of memory conditions), instead of returning an error
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// code.
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#define ta_xalloc_size(...) ta_oom_p(ta_alloc_size(__VA_ARGS__))
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#define ta_xzalloc_size(...) ta_oom_p(ta_zalloc_size(__VA_ARGS__))
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#define ta_xset_destructor(...) ta_oom_b(ta_set_destructor(__VA_ARGS__))
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#define ta_xset_parent(...) ta_oom_b(ta_set_parent(__VA_ARGS__))
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#define ta_xnew_context(...) ta_oom_p(ta_new_context(__VA_ARGS__))
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#define ta_xstrdup_append(...) ta_oom_b(ta_strdup_append(__VA_ARGS__))
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#define ta_xstrdup_append_buffer(...) ta_oom_b(ta_strdup_append_buffer(__VA_ARGS__))
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#define ta_xstrndup_append(...) ta_oom_b(ta_strndup_append(__VA_ARGS__))
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#define ta_xstrndup_append_buffer(...) ta_oom_b(ta_strndup_append_buffer(__VA_ARGS__))
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#define ta_xasprintf(...) ta_oom_s(ta_asprintf(__VA_ARGS__))
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#define ta_xvasprintf(...) ta_oom_s(ta_vasprintf(__VA_ARGS__))
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#define ta_xasprintf_append(...) ta_oom_b(ta_asprintf_append(__VA_ARGS__))
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#define ta_xvasprintf_append(...) ta_oom_b(ta_vasprintf_append(__VA_ARGS__))
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#define ta_xasprintf_append_buffer(...) ta_oom_b(ta_asprintf_append_buffer(__VA_ARGS__))
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#define ta_xvasprintf_append_buffer(...) ta_oom_b(ta_vasprintf_append_buffer(__VA_ARGS__))
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#define ta_xnew(...) ta_oom_g(ta_new(__VA_ARGS__))
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#define ta_xznew(...) ta_oom_g(ta_znew(__VA_ARGS__))
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#define ta_xnew_array(...) ta_oom_g(ta_new_array(__VA_ARGS__))
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#define ta_xznew_array(...) ta_oom_g(ta_znew_array(__VA_ARGS__))
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#define ta_xnew_array_size(...) ta_oom_p(ta_new_array_size(__VA_ARGS__))
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#define ta_xnew_ptrtype(...) ta_oom_g(ta_new_ptrtype(__VA_ARGS__))
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#define ta_xnew_array_ptrtype(...) ta_oom_g(ta_new_array_ptrtype(__VA_ARGS__))
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#define ta_xdup_ptrtype(...) ta_oom_g(ta_dup_ptrtype(__VA_ARGS__))
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#define ta_xsteal(ta_parent, ptr) (TA_TYPEOF(ptr))ta_xsteal_(ta_parent, ptr)
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#define ta_xrealloc(ta_parent, ptr, type, count) \
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(type *)ta_xrealloc_size(ta_parent, ptr, ta_calc_array_size(sizeof(type), count))
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// Can't be macros, because the OOM logic is slightly less trivial.
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char *ta_xstrdup(void *ta_parent, const char *str);
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char *ta_xstrndup(void *ta_parent, const char *str, size_t n);
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void *ta_xsteal_(void *ta_parent, void *ptr);
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void *ta_xmemdup(void *ta_parent, void *ptr, size_t size);
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void *ta_xrealloc_size(void *ta_parent, void *ptr, size_t size);
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#ifndef TA_NO_WRAPPERS
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#define ta_alloc_size(...) ta_dbg_set_loc(ta_alloc_size(__VA_ARGS__), TA_LOC)
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#define ta_zalloc_size(...) ta_dbg_set_loc(ta_zalloc_size(__VA_ARGS__), TA_LOC)
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#define ta_realloc_size(...) ta_dbg_set_loc(ta_realloc_size(__VA_ARGS__), TA_LOC)
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#define ta_memdup(...) ta_dbg_set_loc(ta_memdup(__VA_ARGS__), TA_LOC)
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#define ta_xmemdup(...) ta_dbg_set_loc(ta_xmemdup(__VA_ARGS__), TA_LOC)
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#define ta_xrealloc_size(...) ta_dbg_set_loc(ta_xrealloc_size(__VA_ARGS__), TA_LOC)
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#endif
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void ta_oom_b(bool b);
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char *ta_oom_s(char *s);
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void *ta_oom_p(void *p);
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// Generic pointer
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#define ta_oom_g(ptr) (TA_TYPEOF(ptr))ta_oom_p(ptr)
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void ta_enable_leak_report(void);
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void *ta_dbg_set_loc(void *ptr, const char *name);
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void *ta_dbg_mark_as_string(void *ptr);
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#endif
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