release/src/router/nginx/src/http/ngx_http_busy_lock.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   5  */
   6
   7
   8 #ifndef _NGX_HTTP_BUSY_LOCK_H_INCLUDED_
   9 #define _NGX_HTTP_BUSY_LOCK_H_INCLUDED_
  10
  11
  12 #include <ngx_config.h>
  13 #include <ngx_core.h>
  14 #include <ngx_event.h>
  15 #include <ngx_http.h>
  16
  17
  18 typedef struct {
  19     u_char             *md5_mask;
  20     char               *md5;
  21     int                 cacheable;
  22
  23     int                 busy;
  24     int                 max_busy;
  25
  26     int                 waiting;
  27     int                 max_waiting;
  28
  29     time_t              timeout;
  30
  31     ngx_event_mutex_t  *mutex;
  32 } ngx_http_busy_lock_t;
  33
  34
  35 typedef struct {
  36     time_t         time;
  37     ngx_event_t   *event;
  38     void         (*event_handler)(ngx_event_t *ev);
  39     u_char        *md5;
  40     int            slot;
  41 } ngx_http_busy_lock_ctx_t;
  42
  43
  44 int ngx_http_busy_lock(ngx_http_busy_lock_t *bl, ngx_http_busy_lock_ctx_t *bc);
  45 int ngx_http_busy_lock_cacheable(ngx_http_busy_lock_t *bl,
  46                                  ngx_http_busy_lock_ctx_t *bc, int lock);
  47 void ngx_http_busy_unlock(ngx_http_busy_lock_t *bl,
  48                           ngx_http_busy_lock_ctx_t *bc);
  49
  50 char *ngx_http_set_busy_lock_slot(ngx_conf_t *cf, ngx_command_t *cmd,
  51                                   void *conf);
  52
  53
  54 #endif /* _NGX_HTTP_BUSY_LOCK_H_INCLUDED_ */