Mercurial > hg > nginx-quic
annotate src/event/ngx_event_mutex.c @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 05 Mar 2012 13:17:56 +0000 |
parents | 4919fb357a5d |
children | 3377f9459e99 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4450
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Merge of r4406, r4413: copyrights updated.
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4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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13 ngx_int_t ngx_event_mutex_timedlock(ngx_event_mutex_t *m, ngx_msec_t timer, |
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14 ngx_event_t *ev) |
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15 { |
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16 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 17 "lock event mutex %p lock:%XD", m, m->lock); |
272
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18 |
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19 if (m->lock) { |
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20 |
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21 if (m->events == NULL) { |
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22 m->events = ev; |
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23 |
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24 } else { |
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25 m->last->next = ev; |
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26 } |
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27 |
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28 m->last = ev; |
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29 ev->next = NULL; |
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30 |
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31 #if (NGX_THREADS0) |
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32 ev->light = 1; |
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33 #endif |
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34 |
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35 ngx_add_timer(ev, timer); |
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36 |
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37 return NGX_AGAIN; |
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38 } |
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39 |
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40 m->lock = 1; |
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41 |
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42 return NGX_OK; |
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43 } |
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44 |
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45 |
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46 ngx_int_t ngx_event_mutex_unlock(ngx_event_mutex_t *m, ngx_log_t *log) |
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47 { |
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48 ngx_event_t *ev; |
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49 |
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50 if (m->lock == 0) { |
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51 ngx_log_error(NGX_LOG_ALERT, log, 0, |
461 | 52 "tring to unlock the free event mutex %p", m); |
272
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53 return NGX_ERROR; |
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54 } |
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55 |
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56 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0, |
461 | 57 "unlock event mutex %p, next event: %p", m, m->events); |
272
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58 |
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59 m->lock = 0; |
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60 |
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61 if (m->events) { |
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62 ev = m->events; |
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63 m->events = ev->next; |
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64 |
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65 ev->next = (ngx_event_t *) ngx_posted_events; |
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66 ngx_posted_events = ev; |
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67 } |
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68 |
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69 return NGX_OK; |
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70 } |