Mercurial > hg > nginx
annotate src/os/win32/ngx_atomic.h @ 441:da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 28 Sep 2004 08:34:51 +0000 |
parents | 5cdc4838d4e8 |
children | 42d11f017717 |
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2 /* |
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3 * Copyright (C) 2002-2004 Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_ATOMIC_H_INCLUDED_ |
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8 #define _NGX_ATOMIC_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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15 #define NGX_HAVE_ATOMIC_OPS 1 |
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18 #define ngx_atomic_inc(p) InterlockedIncrement((long *) p) |
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21 #if defined( __WATCOMC__ ) || defined( __BORLANDC__ ) |
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23 /* the new SDK headers */ |
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25 #define ngx_atomic_cmp_set(lock, old, set) \ |
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26 (InterlockedCompareExchange((long *) lock, set, old) == old) |
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28 #else |
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30 /* the old MS VC6.0SP2 SDK headers */ |
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32 #define ngx_atomic_cmp_set(lock, old, set) \ |
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33 (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old) \ |
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34 == (void *) old) |
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36 #endif |
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39 void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin); |
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41 #define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1)) |
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42 #define ngx_unlock(lock) *(lock) = 0 |
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45 #endif /* _NGX_ATOMIC_H_INCLUDED_ */ |