0,0 → 1,61 |
/* |
* 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 */ |