Mercurial > hg > nginx
annotate src/event/ngx_event_busy_lock.h @ 5115:a29c574d61fa
Status: introduced the "ngx_stat_waiting" counter.
And corresponding variable $connections_waiting was added.
Previously, waiting connections were counted as the difference between
active connections and the sum of reading and writing connections.
That made it impossible to count more than one request in one connection
as reading or writing (as is the case for SPDY).
Also, we no longer count connections in handshake state as waiting.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Fri, 15 Mar 2013 20:00:49 +0000 |
parents | d620f497c50f |
children | 457ec43dd8d5 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #ifndef _NGX_EVENT_BUSY_LOCK_H_INCLUDED_ |
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9 #define _NGX_EVENT_BUSY_LOCK_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 #include <ngx_event.h> |
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16 typedef struct ngx_event_busy_lock_ctx_s ngx_event_busy_lock_ctx_t; |
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17 |
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18 struct ngx_event_busy_lock_ctx_s { |
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19 ngx_event_t *event; |
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20 ngx_event_handler_pt handler; |
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21 void *data; |
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22 ngx_msec_t timer; |
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23 |
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24 unsigned locked:1; |
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25 unsigned waiting:1; |
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26 unsigned cache_updated:1; |
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28 char *md5; |
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29 ngx_int_t slot; |
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31 ngx_event_busy_lock_ctx_t *next; |
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32 }; |
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34 |
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35 typedef struct { |
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36 u_char *md5_mask; |
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37 char *md5; |
1565 | 38 ngx_uint_t cacheable; |
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39 |
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40 ngx_uint_t busy; |
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41 ngx_uint_t max_busy; |
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42 |
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43 ngx_uint_t waiting; |
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44 ngx_uint_t max_waiting; |
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45 |
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46 ngx_event_busy_lock_ctx_t *events; |
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47 ngx_event_busy_lock_ctx_t *last; |
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48 |
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49 #if (NGX_THREADS) |
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50 ngx_mutex_t *mutex; |
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51 #endif |
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52 } ngx_event_busy_lock_t; |
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55 ngx_int_t ngx_event_busy_lock(ngx_event_busy_lock_t *bl, |
563 | 56 ngx_event_busy_lock_ctx_t *ctx); |
1565 | 57 ngx_int_t ngx_event_busy_lock_cacheable(ngx_event_busy_lock_t *bl, |
563 | 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); | |
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63 |
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64 |
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65 #endif /* _NGX_EVENT_BUSY_LOCK_H_INCLUDED_ */ |