annotate src/event/ngx_event_mutex.c @ 548:0dc162a5f3e8 NGINX_0_8_20

nginx 0.8.20 *) Change: now default SSL ciphers are "HIGH:!ADH:!MD5". *) Bugfix: the ngx_http_autoindex_module did not show the trailing slash in links to a directory; the bug had appeared in 0.7.15. *) Bugfix: nginx did not close a log file set by the --error-log-path configuration option; the bug had appeared in 0.7.53. *) Bugfix: nginx did not treat a comma as separator in the "Cache-Control" backend response header line. *) Bugfix: nginx/Windows might not create temporary file, a cache file, or "proxy/fastcgi_store"d file if a worker has no enough access rights for top level directories. *) Bugfix: the "Set-Cookie" and "P3P" FastCGI response header lines were not hidden while caching if no "fastcgi_hide_header" directives were used with any parameters. *) Bugfix: nginx counted incorrectly disk cache size.
author Igor Sysoev <http://sysoev.ru>
date Wed, 14 Oct 2009 00:00:00 +0400
parents 46833bd150cb
children
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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12 ngx_int_t ngx_event_mutex_timedlock(ngx_event_mutex_t *m, ngx_msec_t timer,
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13 ngx_event_t *ev)
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14 {
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15 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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16 "lock event mutex %p lock:%XD", m, m->lock);
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18 if (m->lock) {
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19
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20 if (m->events == NULL) {
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21 m->events = ev;
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22
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23 } else {
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24 m->last->next = ev;
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25 }
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27 m->last = ev;
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28 ev->next = NULL;
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29
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30 #if (NGX_THREADS0)
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31 ev->light = 1;
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32 #endif
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33
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34 ngx_add_timer(ev, timer);
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35
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36 return NGX_AGAIN;
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37 }
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38
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39 m->lock = 1;
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40
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41 return NGX_OK;
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42 }
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43
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45 ngx_int_t ngx_event_mutex_unlock(ngx_event_mutex_t *m, ngx_log_t *log)
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46 {
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47 ngx_event_t *ev;
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48
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49 if (m->lock == 0) {
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50 ngx_log_error(NGX_LOG_ALERT, log, 0,
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51 "tring to unlock the free event mutex %p", m);
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52 return NGX_ERROR;
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53 }
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55 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0,
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56 "unlock event mutex %p, next event: %p", m, m->events);
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57
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58 m->lock = 0;
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60 if (m->events) {
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61 ev = m->events;
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62 m->events = ev->next;
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63
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64 ev->next = (ngx_event_t *) ngx_posted_events;
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65 ngx_posted_events = ev;
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66 }
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68 return NGX_OK;
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69 }