Mercurial > hg > nginx-quic
annotate src/event/ngx_event_busy_lock.c @ 6006:942283a53c28
The "aio" directive parser made smarter.
It now prints meaningful warnings on all platforms.
No functional changes.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Fri, 13 Mar 2015 16:42:52 +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 |
297
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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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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:
diff
changeset
|
245 mask >>= 1; |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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246 bit++; |
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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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247 } |
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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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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) { |
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nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
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250 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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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>
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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) { |
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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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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 |
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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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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); |
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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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260 bl->md5_mask[free / 8] |= 1 << (free & 7); |
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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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261 ctx->slot = free; |
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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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262 |
1565 | 263 bl->cacheable++; |
276
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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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264 bl->busy++; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
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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; |
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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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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:
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269 |
563 | 270 static void |
271 ngx_event_busy_lock_handler(ngx_event_t *ev) | |
276
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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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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
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|
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:
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|
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
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|
284 ctx = ev->data; |
a2d1ccc96111
nginx-0.0.2-2004-03-03-00:14:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
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 } |