Mercurial > hg > nginx-vendor-0-8
view src/core/ngx_shmtx.h @ 260:0effe91f6083 NGINX_0_5_0
nginx 0.5.0
*) Change: the parameters in the "%name" form in the "log_format"
directive are not supported anymore.
*) Change: the "proxy_upstream_max_fails",
"proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails",
"fastcgi_upstream_fail_timeout", "memcached_upstream_max_fails", and
"memcached_upstream_fail_timeout" directives are not supported
anymore.
*) Feature: the "server" directive in the "upstream" context supports
the "max_fails", "fail_timeout", and "down" parameters.
*) Feature: the "ip_hash" directive inside the "upstream" block.
*) Feature: the WAIT status in the "Auth-Status" header line of the
IMAP/POP3 proxy authentication server response.
*) Bugfix: nginx could not be built on 64-bit platforms; bug appeared
in 0.4.14.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 04 Dec 2006 00:00:00 +0300 |
parents | 6ae1357b7b7c |
children | 052a7b1d40e5 |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_SHMTX_H_INCLUDED_ #define _NGX_SHMTX_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef struct { #if (NGX_HAVE_ATOMIC_OPS) ngx_atomic_t *lock; #else ngx_fd_t fd; u_char *name; #endif } ngx_shmtx_t; ngx_int_t ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name); #if (NGX_HAVE_ATOMIC_OPS) static ngx_inline ngx_uint_t ngx_shmtx_trylock(ngx_shmtx_t *mtx) { if (*mtx->lock == 0 && ngx_atomic_cmp_set(mtx->lock, 0, ngx_pid)) { return 1; } return 0; } #define ngx_shmtx_lock(mtx) ngx_spinlock((mtx)->lock, ngx_pid, 1024) #define ngx_shmtx_unlock(mtx) (void) ngx_atomic_cmp_set((mtx)->lock, ngx_pid, 0) #define ngx_shmtx_destory(mtx) #else static ngx_inline ngx_uint_t ngx_shmtx_trylock(ngx_shmtx_t *mtx) { ngx_err_t err; err = ngx_trylock_fd(mtx->fd); if (err == 0) { return 1; } if (err == NGX_EAGAIN) { return 0; } ngx_log_abort(err, ngx_trylock_fd_n " failed"); } static ngx_inline void ngx_shmtx_lock(ngx_shmtx_t *mtx) { ngx_err_t err; err = ngx_lock_fd(mtx->fd); if (err == 0) { return; } ngx_log_abort(err, ngx_lock_fd_n " failed"); } static ngx_inline void ngx_shmtx_unlock(ngx_shmtx_t *mtx) { ngx_err_t err; err = ngx_unlock_fd(mtx->fd); if (err == 0) { return; } ngx_log_abort(err, ngx_unlock_fd_n " failed"); } void ngx_shmtx_destory(ngx_shmtx_t *mtx); #endif #endif /* _NGX_SHMTX_H_INCLUDED_ */