blob: f7299336f6b10687f30fb0c1ad7da5f36ae27dff
1 | /* |
2 | * Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com> |
3 | * |
4 | * This file is part of FFmpeg. |
5 | * |
6 | * FFmpeg is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2.1 of the License, or (at your option) any later version. |
10 | * |
11 | * FFmpeg is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with FFmpeg; if not, write to the Free Software |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | */ |
20 | |
21 | #ifndef AVUTIL_ATOMIC_WIN32_H |
22 | #define AVUTIL_ATOMIC_WIN32_H |
23 | |
24 | #define WIN32_LEAN_AND_MEAN |
25 | #include <windows.h> |
26 | |
27 | #define avpriv_atomic_int_get atomic_int_get_win32 |
28 | static inline int atomic_int_get_win32(volatile int *ptr) |
29 | { |
30 | MemoryBarrier(); |
31 | return *ptr; |
32 | } |
33 | |
34 | #define avpriv_atomic_int_set atomic_int_set_win32 |
35 | static inline void atomic_int_set_win32(volatile int *ptr, int val) |
36 | { |
37 | *ptr = val; |
38 | MemoryBarrier(); |
39 | } |
40 | |
41 | #define avpriv_atomic_int_add_and_fetch atomic_int_add_and_fetch_win32 |
42 | static inline int atomic_int_add_and_fetch_win32(volatile int *ptr, int inc) |
43 | { |
44 | return inc + InterlockedExchangeAdd(ptr, inc); |
45 | } |
46 | |
47 | #define avpriv_atomic_ptr_cas atomic_ptr_cas_win32 |
48 | static inline void *atomic_ptr_cas_win32(void * volatile *ptr, |
49 | void *oldval, void *newval) |
50 | { |
51 | return InterlockedCompareExchangePointer(ptr, newval, oldval); |
52 | } |
53 | |
54 | #endif /* AVUTIL_ATOMIC_WIN32_H */ |
55 |