mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.9 KiB
61 lines
1.9 KiB
/* |
|
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com> |
|
* |
|
* 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 |
|
*/ |
|
|
|
#ifndef AVUTIL_ATOMIC_GCC_H |
|
#define AVUTIL_ATOMIC_GCC_H |
|
|
|
#include <stdint.h> |
|
|
|
#include "atomic.h" |
|
|
|
#define avpriv_atomic_int_get atomic_int_get_gcc |
|
static inline int atomic_int_get_gcc(volatile int *ptr) |
|
{ |
|
__sync_synchronize(); |
|
return *ptr; |
|
} |
|
|
|
#define avpriv_atomic_int_set atomic_int_set_gcc |
|
static inline void atomic_int_set_gcc(volatile int *ptr, int val) |
|
{ |
|
*ptr = val; |
|
__sync_synchronize(); |
|
} |
|
|
|
#define avpriv_atomic_int_add_and_fetch atomic_int_add_and_fetch_gcc |
|
static inline int atomic_int_add_and_fetch_gcc(volatile int *ptr, int inc) |
|
{ |
|
return __sync_add_and_fetch(ptr, inc); |
|
} |
|
|
|
#define avpriv_atomic_ptr_cas atomic_ptr_cas_gcc |
|
static inline void *atomic_ptr_cas_gcc(void * volatile *ptr, |
|
void *oldval, void *newval) |
|
{ |
|
#ifdef __ARMCC_VERSION |
|
// armcc will throw an error if ptr is not an integer type |
|
volatile uintptr_t *tmp = (volatile uintptr_t*)ptr; |
|
return (void*)__sync_val_compare_and_swap(tmp, oldval, newval); |
|
#else |
|
return __sync_val_compare_and_swap(ptr, oldval, newval); |
|
#endif |
|
} |
|
|
|
#endif /* AVUTIL_ATOMIC_GCC_H */
|
|
|