Mercurial > hg > nginx-vendor-current
view src/core/ngx_spinlock.c @ 340:10cc350ed8a1 NGINX_0_6_14
nginx 0.6.14
*) Change: now by default the "echo" SSI command uses entity encoding.
*) Feature: the "encoding" parameter in the "echo" SSI command.
*) Feature: the "access_log" directive may be used inside the
"limit_except" block.
*) Bugfix: if all upstream servers were failed, then all servers had
got weight the was equal one until servers became alive; bug
appeared in 0.6.6.
*) Bugfix: a segmentation fault occurred in worker process if
$date_local and $date_gmt were used outside the
ngx_http_ssi_filter_module.
*) Bugfix: a segmentation fault might occur in worker process if debug
log was enabled.
Thanks to Andrei Nigmatulin.
*) Bugfix: ngx_http_memcached_module did not set
$upstream_response_time.
Thanks to Maxim Dounin.
*) Bugfix: a worker process may got caught in an endless loop, if the
memcached was used.
*) Bugfix: nginx supported low case only "close" and "keep-alive"
values in the "Connection" request header line; bug appeared in
0.6.11.
*) Bugfix: sub_filter did not work with empty substitution.
*) Bugfix: in sub_filter parsing.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 15 Oct 2007 00:00:00 +0400 |
parents | 73e8476f9142 |
children | d0f7a625f27c |
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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 }