Mercurial > hg > nginx-vendor-0-6
view src/core/ngx_spinlock.c @ 354:583decdb82a4 NGINX_0_6_21
nginx 0.6.21
*) Change: if variable values used in a "proxy_pass" directive contain
IP-addresses only, then a "resolver" directive is not mandatory.
resolver
*) Bugfix: a segmentation fault might occur in worker process if a
"proxy_pass" directive with URI-part was used; bug appeared in
0.6.19.
*) Bugfix: if resolver was used on platform that does not support
kqueue, then nginx issued an alert "name is out of response".
Thanks to Andrei Nigmatulin.
*) Bugfix: if the $server_protocol was used in FastCGI parameters and a
request line length was near to the "client_header_buffer_size"
directive value, then nginx issued an alert "fastcgi: the request
record is too big".
*) Bugfix: if a plain text HTTP/0.9 version request was made to HTTPS
server, then nginx returned usual response.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 03 Dec 2007 00:00:00 +0300 |
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 }