Mercurial > hg > nginx-quic
annotate src/event/ngx_event_busy_lock.c @ 5999:4d8936b1fc32
Upstream keepalive: drop ready flag on EAGAIN from recv(MSG_PEEK).
Keeping the ready flag in this case might results in missing notification of
broken connection until nginx tried to use it again.
While there, stale comment about stale event was removed since this function
is also can be called directly.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Tue, 03 Mar 2015 17:48:57 +0300 |
parents | d620f497c50f |
children |
rev | line source |
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441
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1 |
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2 /* |
444
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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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6 |
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7 |
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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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12 |
1565 | 13 static ngx_int_t ngx_event_busy_lock_look_cacheable(ngx_event_busy_lock_t *bl, |
563 | 14 ngx_event_busy_lock_ctx_t *ctx); |
276
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15 static void ngx_event_busy_lock_handler(ngx_event_t *ev); |
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16 static void ngx_event_busy_lock_posted_handler(ngx_event_t *ev); |
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17 |
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18 |
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19 /* |
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20 * NGX_OK: the busy lock is held |
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21 * NGX_AGAIN: the all busy locks are held but we will wait the specified time |
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22 * NGX_BUSY: ctx->timer == 0: there are many the busy locks |
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23 * ctx->timer != 0: there are many the waiting locks |
276
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24 */ |
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25 |
563 | 26 ngx_int_t |
27 ngx_event_busy_lock(ngx_event_busy_lock_t *bl, ngx_event_busy_lock_ctx_t *ctx) | |
276
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28 { |
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29 ngx_int_t rc; |
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30 |
563 | 31 ngx_mutex_lock(bl->mutex); |
276
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32 |
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33 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ctx->event->log, 0, |
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34 "event busy lock: b:%d mb:%d", |
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35 bl->busy, bl->max_busy); |
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36 |
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37 if (bl->busy < bl->max_busy) { |
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38 bl->busy++; |
605 | 39 |
276
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40 rc = NGX_OK; |
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41 |
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42 } else if (ctx->timer && bl->waiting < bl->max_waiting) { |
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43 bl->waiting++; |
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44 ngx_add_timer(ctx->event, ctx->timer); |
509 | 45 ctx->event->handler = ngx_event_busy_lock_handler; |
276
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46 |
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47 if (bl->events) { |
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48 bl->last->next = ctx; |
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49 |
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50 } else { |
351
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51 bl->events = ctx; |
276
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52 } |
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53 |
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54 bl->last = ctx; |
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55 |
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56 rc = NGX_AGAIN; |
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57 |
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58 } else { |
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59 rc = NGX_BUSY; |
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60 } |
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61 |
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62 ngx_mutex_unlock(bl->mutex); |
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63 |
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64 return rc; |
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65 } |
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66 |
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67 |
563 | 68 ngx_int_t |
1565 | 69 ngx_event_busy_lock_cacheable(ngx_event_busy_lock_t *bl, |
563 | 70 ngx_event_busy_lock_ctx_t *ctx) |
276
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71 { |
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72 ngx_int_t rc; |
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73 |
563 | 74 ngx_mutex_lock(bl->mutex); |
276
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75 |
1565 | 76 rc = ngx_event_busy_lock_look_cacheable(bl, ctx); |
276
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77 |
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78 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ctx->event->log, 0, |
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79 "event busy lock: %d w:%d mw:%d", |
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80 rc, bl->waiting, bl->max_waiting); |
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81 |
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82 /* |
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83 * NGX_OK: no the same request, there is free slot and we locked it |
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84 * NGX_BUSY: no the same request and there is no free slot |
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85 * NGX_AGAIN: the same request is processing |
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86 */ |
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87 |
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88 if (rc == NGX_AGAIN) { |
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89 |
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90 if (ctx->timer && bl->waiting < bl->max_waiting) { |
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91 bl->waiting++; |
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92 ngx_add_timer(ctx->event, ctx->timer); |
509 | 93 ctx->event->handler = ngx_event_busy_lock_handler; |
276
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94 |
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95 if (bl->events == NULL) { |
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96 bl->events = ctx; |
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97 } else { |
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98 bl->last->next = ctx; |
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99 } |
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100 bl->last = ctx; |
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101 |
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102 } else { |
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103 rc = NGX_BUSY; |
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104 } |
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105 } |
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106 |
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107 ngx_mutex_unlock(bl->mutex); |
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108 |
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109 return rc; |
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110 } |
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111 |
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112 |
563 | 113 void |
114 ngx_event_busy_unlock(ngx_event_busy_lock_t *bl, | |
115 ngx_event_busy_lock_ctx_t *ctx) | |
276
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116 { |
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117 ngx_event_t *ev; |
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118 ngx_event_busy_lock_ctx_t *wakeup; |
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119 |
563 | 120 ngx_mutex_lock(bl->mutex); |
276
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 if (bl->events) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 wakeup = bl->events; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 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
|
125 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 } else { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 wakeup = NULL; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 bl->busy--; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 } |
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 /* |
277
e91499541410
nginx-0.0.2-2004-03-03-19:14:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
276
diff
changeset
|
132 * MP: all ctx's and their queue must be in shared memory, |
e91499541410
nginx-0.0.2-2004-03-03-19:14:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
276
diff
changeset
|
133 * each ctx has pid to wake up |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 */ |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
135 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 if (wakeup == NULL) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 ngx_mutex_unlock(bl->mutex); |
563 | 138 return; |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 } |
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 if (ctx->md5) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 for (wakeup = bl->events; wakeup; wakeup = wakeup->next) { |
277
e91499541410
nginx-0.0.2-2004-03-03-19:14:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
276
diff
changeset
|
143 if (wakeup->md5 == NULL || wakeup->slot != ctx->slot) { |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 continue; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 } |
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 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
|
148 wakeup->cache_updated = 1; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
150 ev = wakeup->event; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
151 |
563 | 152 ngx_post_event(ev, &ngx_posted_events); |
276
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 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
|
156 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
157 } else { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
158 bl->waiting--; |
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 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
|
161 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 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
|
163 wakeup->locked = 1; |
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 ev = wakeup->event; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
166 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
167 if (ev->timer_set) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
168 ngx_del_timer(ev); |
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 |
563 | 171 ngx_post_event(ev, &ngx_posted_events); |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
172 } |
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 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 |
563 | 176 void |
177 ngx_event_busy_lock_cancel(ngx_event_busy_lock_t *bl, | |
178 ngx_event_busy_lock_ctx_t *ctx) | |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
179 { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
180 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
|
181 |
563 | 182 ngx_mutex_lock(bl->mutex); |
276
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 bl->waiting--; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 if (ctx == bl->events) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 bl->events = ctx->next; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 } else { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 p = bl->events; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
191 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
|
192 if (c == ctx) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 p->next = ctx->next; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
194 break; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 p = c; |
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 } |
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 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
|
201 } |
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 |
563 | 204 static ngx_int_t |
1565 | 205 ngx_event_busy_lock_look_cacheable(ngx_event_busy_lock_t *bl, |
563 | 206 ngx_event_busy_lock_ctx_t *ctx) |
276
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 ngx_int_t free; |
1565 | 209 ngx_uint_t i, bit, cacheable, mask; |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
210 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 bit = 0; |
1565 | 212 cacheable = 0; |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 free = -1; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 #if (NGX_SUPPRESS_WARN) |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 mask = 0; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
217 #endif |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 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
|
220 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
221 if ((bit & 7) == 0) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
222 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
|
223 } |
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 if (mask & 1) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
226 if (ngx_memcmp(&bl->md5[i * 16], ctx->md5, 16) == 0) { |
277
e91499541410
nginx-0.0.2-2004-03-03-19:14:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
276
diff
changeset
|
227 ctx->waiting = 1; |
e91499541410
nginx-0.0.2-2004-03-03-19:14:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
276
diff
changeset
|
228 ctx->slot = i; |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
229 return NGX_AGAIN; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
230 } |
1565 | 231 cacheable++; |
276
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 } else if (free == -1) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
234 free = i; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
235 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
236 |
1565 | 237 if (cacheable == bl->cacheable) { |
238 if (free == -1 && cacheable < bl->max_busy) { | |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
239 free = i + 1; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
240 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
241 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 break; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
243 } |
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:
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245 mask >>= 1; |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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246 bit++; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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247 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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248 |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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249 if (free == -1) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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250 return NGX_BUSY; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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251 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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252 |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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253 #if 0 |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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254 if (bl->busy == bl->max_busy) { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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255 return NGX_BUSY; |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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256 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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257 #endif |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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258 |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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259 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:
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260 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:
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261 ctx->slot = free; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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262 |
1565 | 263 bl->cacheable++; |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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264 bl->busy++; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
265 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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266 return NGX_OK; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
267 } |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
268 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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269 |
563 | 270 static void |
271 ngx_event_busy_lock_handler(ngx_event_t *ev) | |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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272 { |
563 | 273 ev->handler = ngx_event_busy_lock_posted_handler; |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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274 |
563 | 275 ngx_post_event(ev, &ngx_posted_events); |
276
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 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
278 |
563 | 279 static void |
280 ngx_event_busy_lock_posted_handler(ngx_event_t *ev) | |
276
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 { |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 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
|
283 |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
284 ctx = ev->data; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
285 ctx->handler(ev); |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 } |