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author | Anton Khirnov <anton@khirnov.net> | 2024-09-09 15:59:33 +0200 |
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committer | Anton Khirnov <anton@khirnov.net> | 2024-09-23 17:08:46 +0200 |
commit | 8c185ef4e7a2f58f2a8a71c7696fb81837d936b6 (patch) | |
tree | f6d5e92236b4b8e4a577fdf0f03b520d97750642 /compat/atomics/pthread/stdatomic.h | |
parent | 6b3f9c2e92ba1973de031554c6929a8eace3c87c (diff) | |
download | ffmpeg-8c185ef4e7a2f58f2a8a71c7696fb81837d936b6.tar.gz |
compat: drop gcc, suncc, and pthreads stdatomic emulation
Since we now require a C11-compliant compiler, there should be no
supported configurations where any of these is used.
Diffstat (limited to 'compat/atomics/pthread/stdatomic.h')
-rw-r--r-- | compat/atomics/pthread/stdatomic.h | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/compat/atomics/pthread/stdatomic.h b/compat/atomics/pthread/stdatomic.h deleted file mode 100644 index 81a60f102b..0000000000 --- a/compat/atomics/pthread/stdatomic.h +++ /dev/null @@ -1,197 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* - * based on vlc_atomic.h from VLC - * Copyright (C) 2010 Rémi Denis-Courmont - */ - -#ifndef COMPAT_ATOMICS_PTHREAD_STDATOMIC_H -#define COMPAT_ATOMICS_PTHREAD_STDATOMIC_H - -#include <stdint.h> - -#define ATOMIC_FLAG_INIT 0 - -#define ATOMIC_VAR_INIT(value) (value) - -#define atomic_init(obj, value) \ -do { \ - *(obj) = (value); \ -} while(0) - -#define kill_dependency(y) ((void)0) - -#define atomic_signal_fence(order) \ - ((void)0) - -#define atomic_is_lock_free(obj) 0 - -typedef intptr_t atomic_flag; -typedef intptr_t atomic_bool; -typedef intptr_t atomic_char; -typedef intptr_t atomic_schar; -typedef intptr_t atomic_uchar; -typedef intptr_t atomic_short; -typedef intptr_t atomic_ushort; -typedef intptr_t atomic_int; -typedef intptr_t atomic_uint; -typedef intptr_t atomic_long; -typedef intptr_t atomic_ulong; -typedef intptr_t atomic_llong; -typedef intptr_t atomic_ullong; -typedef intptr_t atomic_wchar_t; -typedef intptr_t atomic_int_least8_t; -typedef intptr_t atomic_uint_least8_t; -typedef intptr_t atomic_int_least16_t; -typedef intptr_t atomic_uint_least16_t; -typedef intptr_t atomic_int_least32_t; -typedef intptr_t atomic_uint_least32_t; -typedef intptr_t atomic_int_least64_t; -typedef intptr_t atomic_uint_least64_t; -typedef intptr_t atomic_int_fast8_t; -typedef intptr_t atomic_uint_fast8_t; -typedef intptr_t atomic_int_fast16_t; -typedef intptr_t atomic_uint_fast16_t; -typedef intptr_t atomic_int_fast32_t; -typedef intptr_t atomic_uint_fast32_t; -typedef intptr_t atomic_int_fast64_t; -typedef intptr_t atomic_uint_fast64_t; -typedef intptr_t atomic_intptr_t; -typedef intptr_t atomic_uintptr_t; -typedef intptr_t atomic_size_t; -typedef intptr_t atomic_ptrdiff_t; -typedef intptr_t atomic_intmax_t; -typedef intptr_t atomic_uintmax_t; - -void avpriv_atomic_lock(void); -void avpriv_atomic_unlock(void); - -static inline void atomic_thread_fence(int order) -{ - avpriv_atomic_lock(); - avpriv_atomic_unlock(); -} - -static inline void atomic_store(intptr_t *object, intptr_t desired) -{ - avpriv_atomic_lock(); - *object = desired; - avpriv_atomic_unlock(); -} - -#define atomic_store_explicit(object, desired, order) \ - atomic_store(object, desired) - -static inline intptr_t atomic_load(intptr_t *object) -{ - intptr_t ret; - avpriv_atomic_lock(); - ret = *object; - avpriv_atomic_unlock(); - return ret; -} - -#define atomic_load_explicit(object, order) \ - atomic_load(object) - -static inline intptr_t atomic_exchange(intptr_t *object, intptr_t desired) -{ - intptr_t ret; - avpriv_atomic_lock(); - ret = *object; - *object = desired; - avpriv_atomic_unlock(); - return ret; -} - -#define atomic_exchange_explicit(object, desired, order) \ - atomic_exchange(object, desired) - -static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected, - intptr_t desired) -{ - int ret; - avpriv_atomic_lock(); - if (*object == *expected) { - ret = 1; - *object = desired; - } else { - ret = 0; - *expected = *object; - } - avpriv_atomic_unlock(); - return ret; -} - -#define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \ - atomic_compare_exchange_strong(object, expected, desired) - -#define atomic_compare_exchange_weak(object, expected, desired) \ - atomic_compare_exchange_strong(object, expected, desired) - -#define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \ - atomic_compare_exchange_weak(object, expected, desired) - -#define FETCH_MODIFY(opname, op) \ -static inline intptr_t atomic_fetch_ ## opname(intptr_t *object, intptr_t operand) \ -{ \ - intptr_t ret; \ - avpriv_atomic_lock(); \ - ret = *object; \ - *object = *object op operand; \ - avpriv_atomic_unlock(); \ - return ret; \ -} - -FETCH_MODIFY(add, +) -FETCH_MODIFY(sub, -) -FETCH_MODIFY(or, |) -FETCH_MODIFY(xor, ^) -FETCH_MODIFY(and, &) - -#undef FETCH_MODIFY - -#define atomic_fetch_add_explicit(object, operand, order) \ - atomic_fetch_add(object, operand) - -#define atomic_fetch_sub_explicit(object, operand, order) \ - atomic_fetch_sub(object, operand) - -#define atomic_fetch_or_explicit(object, operand, order) \ - atomic_fetch_or(object, operand) - -#define atomic_fetch_xor_explicit(object, operand, order) \ - atomic_fetch_xor(object, operand) - -#define atomic_fetch_and_explicit(object, operand, order) \ - atomic_fetch_and(object, operand) - -#define atomic_flag_test_and_set(object) \ - atomic_exchange(object, 1) - -#define atomic_flag_test_and_set_explicit(object, order) \ - atomic_flag_test_and_set(object) - -#define atomic_flag_clear(object) \ - atomic_store(object, 0) - -#define atomic_flag_clear_explicit(object, order) \ - atomic_flag_clear(object) - -#endif /* COMPAT_ATOMICS_PTHREAD_STDATOMIC_H */ |