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annotate src/os/win32/ngx_atomic.h @ 373:018569a8f09c

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nginx-0.0.7-2004-06-30-19:30:41 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 30 Jun 2004 15:30:41 +0000
parents src/core/ngx_atomic.h@780e93985b93
children 5cdc4838d4e8
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679f60139863 nginx-0.0.1-2003-12-19-11:15:11 import
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1 #ifndef _NGX_ATOMIC_H_INCLUDED_
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2 #define _NGX_ATOMIC_H_INCLUDED_
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5 #include <ngx_config.h>
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6 #include <ngx_core.h>
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1526e7686b20 nginx-0.0.3-2004-04-01-10:21:13 import
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9 #define ngx_atomic_inc(p) InterlockedIncrement((long *) p)
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10 #define ngx_atomic_dec(p) InterlockedDecrement((long *) p)
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780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
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13 #if defined( __WATCOMC__ ) || defined( __BORLANDC__ )
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15 #define ngx_atomic_cmp_set(lock, old, set) \
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16 (InterlockedCompareExchange((long *) lock, set, old) == old)
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18 #else
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20 #define ngx_atomic_cmp_set(lock, old, set) \
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21 (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old) \
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22 == (void *) old)
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24 #endif
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27 void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin);
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29 #define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1))
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30 #define ngx_unlock(lock) *(lock) = 0
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33 #endif /* _NGX_ATOMIC_H_INCLUDED_ */