Mercurial > hg > nginx-vendor-0-7
view src/core/ngx_spinlock.c @ 496:116d5de7cbb6 NGINX_0_7_60
nginx 0.7.60
*) Feature: the "updating" parameter in "proxy_cache_use_stale" and
"fastcgi_cache_use_stale" directives.
*) Feature: the "keepalive_requests" directive.
*) Bugfix: in open_file_cache and proxy/fastcgi cache interaction on
start up.
*) Bugfix: open_file_cache might cache open file descriptors too long.
*) Bugfix: the "If-Modified-Since", "If-Range", etc. client request
header lines were passed to backend while caching if no
"proxy_set_header" directive was used with any parameters.
*) Bugfix: the "Set-Cookie" and "P3P" response header lines were not
hidden while caching if no "proxy_hide_header/fastcgi_hide_header"
directives were used with any parameters.
*) Bugfix: the ngx_http_image_filter_module did not support GIF87a
format.
Thanks to Denis Ilyinyh.
*) Bugfix: nginx could not be built modules on Solaris 10 and early;
the bug had appeared in 0.7.56.
*) Bugfix: XLST filter did not work in subrequests.
*) Bugfix: in relative paths handling in nginx/Windows.
*) Bugfix: in proxy_store, fastcgi_store, proxy_cache, and
fastcgi_cache in nginx/Windows.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 15 Jun 2009 00:00:00 +0400 |
parents | 73e8476f9142 |
children |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> void ngx_spinlock(ngx_atomic_t *lock, ngx_atomic_int_t value, ngx_uint_t spin) { #if (NGX_HAVE_ATOMIC_OPS) ngx_uint_t i, n; for ( ;; ) { if (*lock == 0 && ngx_atomic_cmp_set(lock, 0, value)) { return; } if (ngx_ncpu > 1) { for (n = 1; n < spin; n <<= 1) { for (i = 0; i < n; i++) { ngx_cpu_pause(); } if (*lock == 0 && ngx_atomic_cmp_set(lock, 0, value)) { return; } } } ngx_sched_yield(); } #else #if (NGX_THREADS) #error ngx_spinlock() or ngx_atomic_cmp_set() are not defined ! #endif #endif }