mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
edd0dc854d
* commit '7c371754fbc0dcc23bd00278b147f8095ccc5625': atomic_win32: Drop unnecessary atomic.h #include Merged-by: Michael Niedermayer <michaelni@gmx.at>
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
|
|
* 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_WIN32_H
|
|
#define AVUTIL_ATOMIC_WIN32_H
|
|
|
|
#include <windows.h>
|
|
|
|
#define avpriv_atomic_int_get atomic_int_get_win32
|
|
static inline int atomic_int_get_win32(volatile int *ptr)
|
|
{
|
|
MemoryBarrier();
|
|
return *ptr;
|
|
}
|
|
|
|
#define avpriv_atomic_int_set atomic_int_set_win32
|
|
static inline void atomic_int_set_win32(volatile int *ptr, int val)
|
|
{
|
|
*ptr = val;
|
|
MemoryBarrier();
|
|
}
|
|
|
|
#define avpriv_atomic_int_add_and_fetch atomic_int_add_and_fetch_win32
|
|
static inline int atomic_int_add_and_fetch_win32(volatile int *ptr, int inc)
|
|
{
|
|
return inc + InterlockedExchangeAdd(ptr, inc);
|
|
}
|
|
|
|
#define avpriv_atomic_ptr_cas atomic_ptr_cas_win32
|
|
static inline void *atomic_ptr_cas_win32(void * volatile *ptr,
|
|
void *oldval, void *newval)
|
|
{
|
|
return InterlockedCompareExchangePointer(ptr, newval, oldval);
|
|
}
|
|
|
|
#endif /* AVUTIL_ATOMIC_WIN32_H */
|