Mercurial > hg > nginx
view src/core/ngx_spinlock.c @ 1990:c7757ce0ae97 stable-0.5
r1699, r1700, r1701, r1702, r1707 merge:
upstream parse_header fix and optimization,
fix fastcgi_catch_stderr segfault merged in r1524:
*) return NGX_HTTP_UPSTREAM_INVALID_HEADER for invalid status
*) return NGX_ERROR instead of NGX_HTTP_INTERNAL_SERVER_ERROR
in u->parse_header()
*) return NGX_HTTP_UPSTREAM_INVALID_HEADER instead of NGX_HTTP_BAD_GATEWAY
to go to a next upstream on invalid_header condition
*) now ngx_conf_set_str_array_slot() tests NGX_CONF_UNSET_PTR
this fixes fastcgi_catch_stderr segfault
*) ngx_http_upstream_hide_headers_hash()
*) proxy/fastcgi pass_header/hide_header use
ngx_http_upstream_hide_headers_hash()
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Sun, 04 May 2008 09:29:43 +0000 |
parents | 3f8a2132b93d |
children | d620f497c50f |
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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 }