| /* |
| * 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 |
| |
| #define WIN32_LEAN_AND_MEAN |
| #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 */ |