Mercurial > hg > nginx

annotate src/event/ngx_event_busy_lock.c @ 276:a2d1ccc96111

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nginx-0.0.2-2004-03-03-00:14:37 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 02 Mar 2004 21:14:37 +0000
parents
children e91499541410
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276
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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1
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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3 #include <ngx_core.h>
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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4 #include <ngx_event.h>
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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5
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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6 /*
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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7 * TODO: eliminate mutex and use atomic_xchg():
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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8 * ev->next = ev; ngx_atomic_xchg(ngx_posted_events, ev->next);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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9 * in ngx_event_busy_unlock() and ngx_event_busy_lock_handler()
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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10 */
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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11
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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12
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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13 static int ngx_event_busy_lock_look_cachable(ngx_event_busy_lock_t *bl,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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14 ngx_event_busy_lock_ctx_t *ctx);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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15 static void ngx_event_busy_lock_handler(ngx_event_t *ev);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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16 static void ngx_event_busy_lock_posted_handler(ngx_event_t *ev);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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17
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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18
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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19 /*
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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20 * NGX_OK: the busy lock is held
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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21 * NGX_BUSY: there are many the busy locks or many the waiting locks
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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22 * NGX_AGAIN: the all busy locks are held but we will wait the specified time
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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23 * NGX_ERROR: there was error while the mutex locking
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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24 */
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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25
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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26 ngx_int_t ngx_event_busy_lock(ngx_event_busy_lock_t *bl,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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27 ngx_event_busy_lock_ctx_t *ctx)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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28 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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29 ngx_int_t rc;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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30
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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31 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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32 if (ngx_mutex_lock(bl->mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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33 return NGX_ERROR;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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34 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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35 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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36
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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37 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ctx->event->log, 0,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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38 "event busy lock: b:%d mb:%d",
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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39 bl->busy, bl->max_busy);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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40
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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41 if (bl->busy < bl->max_busy) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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42 bl->busy++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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43 rc = NGX_OK;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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44
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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45 } else if (ctx->timer && bl->waiting < bl->max_waiting) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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46 bl->waiting++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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47 ngx_add_timer(ctx->event, ctx->timer);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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48 ctx->event->event_handler = ngx_event_busy_lock_handler;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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49
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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50 if (bl->events == NULL) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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51 bl->events = ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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52 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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53 bl->last->next = ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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54 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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55 bl->last = ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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56
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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57 rc = NGX_AGAIN;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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58
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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59 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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60 rc = NGX_BUSY;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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61 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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62
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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63 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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64 ngx_mutex_unlock(bl->mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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65 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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66
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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67 return rc;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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68 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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69
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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70
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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71 ngx_int_t ngx_event_busy_lock_cachable(ngx_event_busy_lock_t *bl,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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72 ngx_event_busy_lock_ctx_t *ctx)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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73 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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74 ngx_int_t rc;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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75
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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76 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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77 if (ngx_mutex_lock(bl->mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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78 return NGX_ERROR;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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79 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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80 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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81
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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82 rc = ngx_event_busy_lock_look_cachable(bl, ctx);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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83
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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84 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ctx->event->log, 0,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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85 "event busy lock: %d w:%d mw:%d",
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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86 rc, bl->waiting, bl->max_waiting);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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87
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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88 /*
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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89 * NGX_OK: no the same request, there is free slot and we locked it
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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90 * NGX_BUSY: no the same request and there is no free slot
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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91 * NGX_AGAIN: the same request is processing
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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92 */
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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93
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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94 if (rc == NGX_AGAIN) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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95
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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96 if (ctx->timer && bl->waiting < bl->max_waiting) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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97 bl->waiting++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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98 ngx_add_timer(ctx->event, ctx->timer);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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99 ctx->event->event_handler = ngx_event_busy_lock_handler;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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100
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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101 if (bl->events == NULL) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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102 bl->events = ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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103 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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104 bl->last->next = ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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105 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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106 bl->last = ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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107
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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108 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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109 rc = NGX_BUSY;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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110 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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111 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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112
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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113 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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parents:
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114 ngx_mutex_unlock(bl->mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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115 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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116
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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117 return rc;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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118 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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119
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
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diff changeset
120
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
121 ngx_int_t ngx_event_busy_unlock(ngx_event_busy_lock_t *bl,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
122 ngx_event_busy_lock_ctx_t *ctx)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
124 ngx_event_t *ev;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
125 ngx_event_busy_lock_ctx_t *wakeup;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
128 if (ngx_mutex_lock(bl->mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
129 return NGX_ERROR;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
130 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
132
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133 if (bl->events) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
134 wakeup = bl->events;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
135 bl->events = bl->events->next;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
136
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
137 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
138 wakeup = NULL;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
139 bl->busy--;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
141
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142 /*
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 * MP:
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 * nocachable (bl->md5 == NULL): ngx_shared_mutex_unlock(mutex, !wakeup)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 * cachable (bl->md5): ???
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146 */
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
147
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148 if (wakeup == NULL) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
150 ngx_mutex_unlock(bl->mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
151 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 return NGX_OK;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
155 if (ctx->md5) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
156 for (wakeup = bl->events; wakeup; wakeup = wakeup->next) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
157 if (wakeup->md5 == NULL) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
158 continue;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
161 if (ngx_memcmp(ctx->md5, wakeup->md5, 16) != 0) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162 continue;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165 wakeup->handler = ngx_event_busy_lock_posted_handler;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 wakeup->cache_updated = 1;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168 ev = wakeup->event;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
171 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
172 return NGX_ERROR;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176 ev->next = (ngx_event_t *) ngx_posted_events;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 ngx_posted_events = ev;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
179 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180 ngx_mutex_unlock(ngx_posted_events_mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 ngx_mutex_unlock(bl->mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
188 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189 bl->waiting--;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 ngx_mutex_unlock(bl->mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
195 wakeup->handler = ngx_event_busy_lock_posted_handler;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196 wakeup->locked = 1;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
198 ev = wakeup->event;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
200 if (ev->timer_set) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
201 ngx_del_timer(ev);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
202 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
206 return NGX_ERROR;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
207 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 ev->next = (ngx_event_t *) ngx_posted_events;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 ngx_posted_events = ev;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
212
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 ngx_mutex_unlock(ngx_posted_events_mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 return NGX_OK;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222 ngx_int_t ngx_event_busy_lock_cancel(ngx_event_busy_lock_t *bl,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223 ngx_event_busy_lock_ctx_t *ctx)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225 ngx_event_busy_lock_ctx_t *c, *p;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228 if (ngx_mutex_lock(bl->mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229 return NGX_ERROR;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
230 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
231 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
233 bl->waiting--;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
234
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
235 if (ctx == bl->events) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
236 bl->events = ctx->next;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
237
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
238 } else {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
239 p = bl->events;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
240 for (c = bl->events->next; c; c = c->next) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241 if (c == ctx) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242 p->next = ctx->next;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
243 break;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
244 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
245 p = c;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
246 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
249 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
250 ngx_mutex_unlock(bl->mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
252
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
253 return NGX_OK;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
254 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
255
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
256
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
257 static int ngx_event_busy_lock_look_cachable(ngx_event_busy_lock_t *bl,
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
258 ngx_event_busy_lock_ctx_t *ctx)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
259 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
260 ngx_int_t free;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
261 ngx_uint_t i, bit, cachable, mask;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
262
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
263 bit = 0;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
264 cachable = 0;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
265 free = -1;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
266
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
267 #if (NGX_SUPPRESS_WARN)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
268 mask = 0;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
269 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
270
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
271 for (i = 0; i < bl->max_busy; i++) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
272
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
273 if ((bit & 7) == 0) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
274 mask = bl->md5_mask[i / 8];
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
275 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
276
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
277 if (mask & 1) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
278 if (ngx_memcmp(&bl->md5[i * 16], ctx->md5, 16) == 0) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
279 return NGX_AGAIN;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
280 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
281 cachable++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
282
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
283 } else if (free == -1) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
284 free = i;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
285 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
286
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
287 if (cachable == bl->cachable) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
288 if (free == -1 && cachable < bl->max_busy) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
289 free = i + 1;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
290 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
291
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
292 break;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
293 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
294
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
295 mask >>= 1;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
296 bit++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
297 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
298
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
299 if (free == -1) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
300 return NGX_BUSY;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
301 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
302
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
303 #if 0
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
304 if (bl->busy == bl->max_busy) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
305 return NGX_BUSY;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
306 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
307 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
308
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
309 ngx_memcpy(&bl->md5[free * 16], ctx->md5, 16);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
310 bl->md5_mask[free / 8] |= 1 << (free & 7);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
311 ctx->slot = free;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
312
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
313 bl->cachable++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
314 bl->busy++;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
315
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
316 return NGX_OK;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
317 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
318
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
319
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
320 static void ngx_event_busy_lock_handler(ngx_event_t *ev)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
321 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
322 ev->event_handler = ngx_event_busy_lock_posted_handler;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
323
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
324 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
325 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
326 return;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
327 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
328 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
329
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
330 ev->next = (ngx_event_t *) ngx_posted_events;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
331 ngx_posted_events = ev;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
332
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
333 #if (NGX_THREADS)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
334 ngx_mutex_unlock(ngx_posted_events_mutex);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
335 #endif
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
336 }
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
337
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
338
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
339 static void ngx_event_busy_lock_posted_handler(ngx_event_t *ev)
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
340 {
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
341 ngx_event_busy_lock_ctx_t *ctx;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
342
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
343 ctx = ev->data;
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
344 ctx->handler(ev);
a2d1ccc96111 nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
345 }