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src/event/ngx_event_busy_lock.h - nginx-1.7.10

Data types defined

Macros defined

Source code


  2. /*
  3. * Copyright (C) Igor Sysoev
  4. * Copyright (C) Nginx, Inc.
  5. */


  8. #ifndef _NGX_EVENT_BUSY_LOCK_H_INCLUDED_
  9. ‌#define _NGX_EVENT_BUSY_LOCK_H_INCLUDED_


  12. #include <ngx_config.h>
  13. #include <ngx_core.h>
  14. #include <ngx_event.h>

  16. ‌typedef struct ngx_event_busy_lock_ctx_s  ngx_event_busy_lock_ctx_t;

  18. ‌struct ngx_event_busy_lock_ctx_s {
  19.     ngx_event_t                *event;
  20.     ngx_event_handler_pt        handler;
  21.     void                       *data;
  22.     ngx_msec_t                  timer;

  24.     unsigned                    locked:1;
  25.     unsigned                    waiting:1;
  26.     unsigned                    cache_updated:1;

  28.     char                       *md5;
  29.     ngx_int_t                   slot;

  31.     ngx_event_busy_lock_ctx_t  *next;
  32. };


  35. typedef struct {
  36.     u_char                     *md5_mask;
  37.     char                       *md5;
  38.     ngx_uint_t                  cacheable;

  40.     ngx_uint_t                  busy;
  41.     ngx_uint_t                  max_busy;

  43.     ngx_uint_t                  waiting;
  44.     ngx_uint_t                  max_waiting;

  46.     ngx_event_busy_lock_ctx_t  *events;
  47.     ngx_event_busy_lock_ctx_t  *last;

  49. #if (NGX_THREADS)
  50.     ngx_mutex_t                *mutex;
  51. #endif
  52. ‌} ngx_event_busy_lock_t;


  55. ngx_int_t ngx_event_busy_lock(ngx_event_busy_lock_t *bl,
  56.     ngx_event_busy_lock_ctx_t *ctx);
  57. ngx_int_t ngx_event_busy_lock_cacheable(ngx_event_busy_lock_t *bl,
  58.     ngx_event_busy_lock_ctx_t *ctx);
  59. void ngx_event_busy_unlock(ngx_event_busy_lock_t *bl,
  60.     ngx_event_busy_lock_ctx_t *ctx);
  61. void ngx_event_busy_lock_cancel(ngx_event_busy_lock_t *bl,
  62.     ngx_event_busy_lock_ctx_t *ctx);


  65. #endif /* _NGX_EVENT_BUSY_LOCK_H_INCLUDED_ */

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