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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164/* 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_TALLOC_H_#define TA_TALLOC_H_
#include <string.h>
#include "ta.h"
// Note: all talloc wrappers are wired to the "x" functions, which abort on OOM.// libtalloc doesn't do that, but the mplayer2 internal copy of it did.
#define talloc ta_xnew#define talloc_zero ta_xznew
#define talloc_array ta_xnew_array#define talloc_zero_array ta_xznew_array
#define talloc_array_size ta_xnew_array_size#define talloc_realloc ta_xrealloc#define talloc_ptrtype ta_xnew_ptrtype#define talloc_array_ptrtype ta_xnew_array_ptrtype
#define talloc_steal ta_xsteal#define talloc_realloc_size ta_xrealloc_size#define talloc_new ta_xnew_context#define talloc_set_destructor ta_xset_destructor#define talloc_parent ta_find_parent#define talloc_enable_leak_report ta_enable_leak_report#define talloc_size ta_xalloc_size#define talloc_zero_size ta_xzalloc_size#define talloc_get_size ta_get_size#define talloc_free_children ta_free_children#define talloc_free ta_free#define talloc_dup ta_xdup#define talloc_memdup ta_xmemdup#define talloc_strdup ta_xstrdup#define talloc_strndup ta_xstrndup#define talloc_asprintf ta_xasprintf#define talloc_vasprintf ta_xvasprintf
// Don't define linker-level symbols, as that would clash with real libtalloc.#define talloc_strdup_append ta_talloc_strdup_append#define talloc_strdup_append_buffer ta_talloc_strdup_append_buffer#define talloc_strndup_append ta_talloc_strndup_append#define talloc_strndup_append_buffer ta_talloc_strndup_append_buffer#define talloc_vasprintf_append ta_talloc_vasprintf_append#define talloc_vasprintf_append_buffer ta_talloc_vasprintf_append_buffer#define talloc_asprintf_append ta_talloc_asprintf_append#define talloc_asprintf_append_buffer ta_talloc_asprintf_append_buffer
char *ta_talloc_strdup(void *t, const char *p);char *ta_talloc_strdup_append(char *s, const char *a);char *ta_talloc_strdup_append_buffer(char *s, const char *a);
char *ta_talloc_strndup(void *t, const char *p, size_t n);char *ta_talloc_strndup_append(char *s, const char *a, size_t n);char *ta_talloc_strndup_append_buffer(char *s, const char *a, size_t n);
char *ta_talloc_vasprintf_append(char *s, const char *fmt, va_list ap) TA_PRF(2, 0);char *ta_talloc_vasprintf_append_buffer(char *s, const char *fmt, va_list ap) TA_PRF(2, 0);
char *ta_talloc_asprintf_append(char *s, const char *fmt, ...) TA_PRF(2, 3);char *ta_talloc_asprintf_append_buffer(char *s, const char *fmt, ...) TA_PRF(2, 3);
// mpv specific stuff - should be made part of proper TA API
#define TA_FREEP(pctx) do {talloc_free(*(pctx)); *(pctx) = NULL;} while(0)
#define TA_EXPAND_ARGS(...) __VA_ARGS__
// Return number of allocated entries in typed array p[].#define MP_TALLOC_AVAIL(p) (talloc_get_size(p) / sizeof((p)[0]))
// Resize array p so that p[count-1] is the last valid entry. ctx as ta parent.#define MP_RESIZE_ARRAY(ctx, p, count) \ do { \ (p) = ta_xrealloc_size(ctx, p, \ ta_calc_array_size(sizeof((p)[0]), count)); \ } while (0)
// Resize array p so that p[nextidx] is accessible. Preallocate additional// space to make appending more efficient, never shrink. ctx as ta parent.#define MP_TARRAY_GROW(ctx, p, nextidx) \ do { \ size_t nextidx_ = (nextidx); \ if (nextidx_ >= MP_TALLOC_AVAIL(p)) \ MP_RESIZE_ARRAY(ctx, p, ta_calc_prealloc_elems(nextidx_)); \ } while (0)
// Append the last argument to array p (with count idxvar), basically:// p[idxvar++] = ...; ctx as ta parent.#define MP_TARRAY_APPEND(ctx, p, idxvar, ...) \ do { \ MP_TARRAY_GROW(ctx, p, idxvar); \ (p)[(idxvar)] = (TA_EXPAND_ARGS(__VA_ARGS__));\ (idxvar)++; \ } while (0)
// Insert the last argument at p[at] (array p with count idxvar), basically:// for(idxvar-1 down to at) p[n+1] = p[n]; p[at] = ...; idxvar++;// ctx as ta parent. Required: at >= 0 && at <= idxvar.#define MP_TARRAY_INSERT_AT(ctx, p, idxvar, at, ...)\ do { \ size_t at_ = (at); \ assert(at_ <= (idxvar)); \ MP_TARRAY_GROW(ctx, p, idxvar); \ memmove((p) + at_ + 1, (p) + at_, \ ((idxvar) - at_) * sizeof((p)[0])); \ (idxvar)++; \ (p)[at_] = (TA_EXPAND_ARGS(__VA_ARGS__)); \ } while (0)
// Given an array p with count idxvar, insert c elements at p[at], so that// p[at] to p[at+c-1] can be accessed. The elements at p[at] and following// are shifted up by c before insertion. The new entries are uninitialized.// ctx as ta parent. Required: at >= 0 && at <= idxvar.#define MP_TARRAY_INSERT_N_AT(ctx, p, idxvar, at, c)\ do { \ size_t at_ = (at); \ assert(at_ <= (idxvar)); \ size_t c_ = (c); \ MP_TARRAY_GROW(ctx, p, (idxvar) + c_); \ memmove((p) + at_ + c_, (p) + at_, \ ((idxvar) - at_) * sizeof((p)[0])); \ (idxvar) += c_; \ } while (0)
// Remove p[at] from array p with count idxvar (inverse of MP_TARRAY_INSERT_AT()).// Doesn't actually free any memory, or do any other talloc calls.#define MP_TARRAY_REMOVE_AT(p, idxvar, at) \ do { \ size_t at_ = (at); \ assert(at_ <= (idxvar)); \ memmove((p) + at_, (p) + at_ + 1, \ ((idxvar) - at_ - 1) * sizeof((p)[0])); \ (idxvar)--; \ } while (0)
// Returns whether or not there was any element to pop.#define MP_TARRAY_POP(p, idxvar, out) \ ((idxvar) > 0 \ ? (*(out) = (p)[--(idxvar)], true) \ : false \ )
#define talloc_struct(ctx, type, ...) \ talloc_memdup(ctx, &(type) TA_EXPAND_ARGS(__VA_ARGS__), sizeof(type))
#endif