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view src/event/ngx_event_busy_lock.h @ 362:54fad6c4b555 NGINX_0_6_25

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nginx 0.6.25 *) Change: now the "server_name_in_redirect" directive is used instead of the "server_name" directive's special "*" parameter. *) Change: now wildcard and regex names can be used as main name in a "server_name" directive. *) Change: the "satisfy_any" directive was replaced by the "satisfy" directive. *) Workaround: old worker processes might hog CPU after reconfiguration if they was run under Linux OpenVZ. *) Feature: the "min_delete_depth" directive. *) Bugfix: the COPY and MOVE methods did not work with single files. *) Bugfix: the ngx_http_gzip_static_module did not allow the ngx_http_dav_module to work; bug appeared in 0.6.23. *) Bugfix: socket leak in HTTPS mode if deferred accept was used. Thanks to Ben Maurer. *) Bugfix: nginx could not be built without PCRE library; bug appeared in 0.6.23.
author Igor Sysoev <http://sysoev.ru>
date Tue, 08 Jan 2008 00:00:00 +0300
parents 10cc350ed8a1
children d0f7a625f27c
line wrap: on
line source


/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_EVENT_BUSY_LOCK_H_INCLUDED_
#define _NGX_EVENT_BUSY_LOCK_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>

typedef struct ngx_event_busy_lock_ctx_s  ngx_event_busy_lock_ctx_t;

struct ngx_event_busy_lock_ctx_s {
    ngx_event_t                *event;
    ngx_event_handler_pt        handler;
    void                       *data;
    ngx_msec_t                  timer;

    unsigned                    locked:1;
    unsigned                    waiting:1;
    unsigned                    cache_updated:1;

    char                       *md5;
    ngx_int_t                   slot;

    ngx_event_busy_lock_ctx_t  *next;
};


typedef struct {
    u_char                     *md5_mask;
    char                       *md5;
    ngx_uint_t                  cacheable;

    ngx_uint_t                  busy;
    ngx_uint_t                  max_busy;

    ngx_uint_t                  waiting;
    ngx_uint_t                  max_waiting;

    ngx_event_busy_lock_ctx_t  *events;
    ngx_event_busy_lock_ctx_t  *last;

#if (NGX_THREADS)
    ngx_mutex_t                *mutex;
#endif
} ngx_event_busy_lock_t;


ngx_int_t ngx_event_busy_lock(ngx_event_busy_lock_t *bl,
    ngx_event_busy_lock_ctx_t *ctx);
ngx_int_t ngx_event_busy_lock_cacheable(ngx_event_busy_lock_t *bl,
    ngx_event_busy_lock_ctx_t *ctx);
void ngx_event_busy_unlock(ngx_event_busy_lock_t *bl,
    ngx_event_busy_lock_ctx_t *ctx);
void ngx_event_busy_lock_cancel(ngx_event_busy_lock_t *bl,
    ngx_event_busy_lock_ctx_t *ctx);


#endif /* _NGX_EVENT_BUSY_LOCK_H_INCLUDED_ */