src/http/ngx_http_busy_lock.h

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