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/* 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);
bool ta_set_destructor(void *ptr, void (*destructor)(void *));
bool ta_set_parent(void *ptr, void *ta_parent);
void *ta_find_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_ptrtype(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_xset_destructor(...) ta_oom_b(ta_set_destructor(__VA_ARGS__))
#define ta_xset_parent(...) ta_oom_b(ta_set_parent(__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_ptrtype(...) ta_oom_g(ta_dup_ptrtype(__VA_ARGS__))
#define ta_xsteal(ta_parent, ptr) (TA_TYPEOF(ptr))ta_xsteal_(ta_parent, ptr)
#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_xsteal_(void *ta_parent, void *ptr);
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
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