Mercurial > hg > nginx-ranges
comparison src/core/ngx_shmtx.h @ 274:052a7b1d40e5 NGINX_0_5_7
nginx 0.5.7
*) Feature: the ssl_session_cache storage optimization.
*) Bugfixes in the "ssl_session_cache" and "limit_zone" directives.
*) Bugfix: the segmentation fault was occurred on start or while
reconfiguration if the "ssl_session_cache" or "limit_zone"
directives were used on 64-bit platforms.
*) Bugfix: a segmentation fault occurred if the "add_before_body" or
"add_after_body" directives were used and there was no
"Content-Type" header line in response.
*) Bugfix: the OpenSSL library was always built with the threads
support.
Thanks to Den Ivanov.
*) Bugfix: the PCRE-6.5+ library and the icc compiler compatibility.
| author | Igor Sysoev <http://sysoev.ru> |
|---|---|
| date | Mon, 15 Jan 2007 00:00:00 +0300 |
| parents | 6ae1357b7b7c |
| children | 5bef04fc3fd5 |
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| 273:60df8db42ffb | 274:052a7b1d40e5 |
|---|---|
| 28 #if (NGX_HAVE_ATOMIC_OPS) | 28 #if (NGX_HAVE_ATOMIC_OPS) |
| 29 | 29 |
| 30 static ngx_inline ngx_uint_t | 30 static ngx_inline ngx_uint_t |
| 31 ngx_shmtx_trylock(ngx_shmtx_t *mtx) | 31 ngx_shmtx_trylock(ngx_shmtx_t *mtx) |
| 32 { | 32 { |
| 33 if (*mtx->lock == 0 && ngx_atomic_cmp_set(mtx->lock, 0, ngx_pid)) { | 33 return (*mtx->lock == 0 && ngx_atomic_cmp_set(mtx->lock, 0, ngx_pid)); |
| 34 return 1; | |
| 35 } | |
| 36 | |
| 37 return 0; | |
| 38 } | 34 } |
| 39 | 35 |
| 40 #define ngx_shmtx_lock(mtx) ngx_spinlock((mtx)->lock, ngx_pid, 1024) | 36 #define ngx_shmtx_lock(mtx) ngx_spinlock((mtx)->lock, ngx_pid, 1024) |
| 41 | 37 |
| 42 #define ngx_shmtx_unlock(mtx) (void) ngx_atomic_cmp_set((mtx)->lock, ngx_pid, 0) | 38 #define ngx_shmtx_unlock(mtx) (void) ngx_atomic_cmp_set((mtx)->lock, ngx_pid, 0) |