Mercurial > hg > nginx
annotate src/os/win32/ngx_atomic.h @ 561:e48ebafc6939 release-0.3.2
nginx-0.3.2-RELEASE import
*) Feature: the Sun Studio 10 C compiler support.
*) Feature: the "proxy_upstream_max_fails",
"proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails", and
"fastcgi_upstream_fail_timeout" directives.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 12 Oct 2005 13:50:36 +0000 |
parents | d7c90bb5ce83 |
children | 9c2f3ed7a247 |
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2 /* |
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3 * Copyright (C) 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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561 | 17 typedef int32_t ngx_atomic_int_t; |
18 typedef uint32_t ngx_atomic_uint_t; | |
497 | 19 typedef volatile ngx_atomic_uint_t ngx_atomic_t; |
561 | 20 #define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1 |
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461 | 23 #if defined( __WATCOMC__ ) || defined( __BORLANDC__ ) || ( _MSC_VER >= 1300 ) |
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25 /* the new SDK headers */ |
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27 #define ngx_atomic_cmp_set(lock, old, set) \ |
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28 (InterlockedCompareExchange((long *) lock, set, old) == old) |
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30 #else |
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32 /* the old MS VC6.0SP2 SDK headers */ |
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34 #define ngx_atomic_cmp_set(lock, old, set) \ |
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35 (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old) \ |
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36 == (void *) old) |
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38 #endif |
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561 | 41 #define ngx_atomic_fetch_add(p, add) InterlockedExchangeAdd((long *) p, add) |
42 | |
43 | |
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44 void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin); |
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46 #define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1)) |
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47 #define ngx_unlock(lock) *(lock) = 0 |
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50 #endif /* _NGX_ATOMIC_H_INCLUDED_ */ |