Mercurial > hg > nginx-vendor-1-0
view src/core/ngx_spinlock.c @ 256:2e9c57a5e50a NGINX_0_4_13
nginx 0.4.13
*) Feature: the "proxy_pass" directive may be used inside the
"limit_except" block.
*) Feature: the "limit_except" directive supports all WebDAV methods.
*) Bugfix: if the "add_before_body" directive was used without the
"add_after_body" directive, then an response did not transferred
complete.
*) Bugfix: a large request body did not receive if the epoll method and
the deferred accept() were used.
*) Bugfix: a charset could not be set for ngx_http_autoindex_module
responses; bug appeared in 0.3.50.
*) Bugfix: the "[alert] zero size buf" error when FastCGI server was
used;
*) Bugfix: the --group= configuration parameter was ignored.
Thanks to Thomas Moschny.
*) Bugfix: the 50th subrequest in SSI response did not work; bug
appeared in 0.3.50.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Wed, 15 Nov 2006 00:00:00 +0300 |
parents | 73e8476f9142 |
children | ad25218fd14b |
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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 }