Mercurial > hg > nginx-quic
annotate src/event/modules/ngx_aio_module.c @ 738:5d4111daf388
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 02 Oct 2006 15:40:28 +0000 |
parents | 9c2f3ed7a247 |
children | c95800738d2c |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 #include <ngx_aio.h> |
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11 |
469 | 12 #if (NGX_HAVE_KQUEUE) |
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13 #include <ngx_kqueue_module.h> |
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14 #endif |
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15 |
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16 |
563 | 17 static ngx_int_t ngx_aio_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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18 static void ngx_aio_done(ngx_cycle_t *cycle); |
499 | 19 static ngx_int_t ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags); |
20 static ngx_int_t ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags); | |
21 static ngx_int_t ngx_aio_del_connection(ngx_connection_t *c, u_int flags); | |
563 | 22 static ngx_int_t ngx_aio_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
23 ngx_uint_t flags); | |
93
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24 |
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25 |
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26 ngx_os_io_t ngx_os_aio = { |
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27 ngx_aio_read, |
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28 ngx_aio_read_chain, |
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29 ngx_aio_write, |
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30 ngx_aio_write_chain, |
469 | 31 0 |
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32 }; |
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33 |
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34 |
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35 static ngx_str_t aio_name = ngx_string("aio"); |
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36 |
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37 ngx_event_module_t ngx_aio_module_ctx = { |
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38 &aio_name, |
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39 NULL, /* create configuration */ |
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40 NULL, /* init configuration */ |
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41 |
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42 { |
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43 ngx_aio_add_event, /* add an event */ |
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44 ngx_aio_del_event, /* delete an event */ |
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45 NULL, /* enable an event */ |
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46 NULL, /* disable an event */ |
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47 NULL, /* add an connection */ |
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48 ngx_aio_del_connection, /* delete an connection */ |
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49 NULL, /* process the changes */ |
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50 ngx_aio_process_events, /* process the events */ |
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51 ngx_aio_init, /* init the events */ |
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52 ngx_aio_done /* done the events */ |
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53 } |
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54 |
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55 }; |
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56 |
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57 ngx_module_t ngx_aio_module = { |
509 | 58 NGX_MODULE_V1, |
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59 &ngx_aio_module_ctx, /* module context */ |
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60 NULL, /* module directives */ |
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61 NGX_EVENT_MODULE, /* module type */ |
541 | 62 NULL, /* init master */ |
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63 NULL, /* init module */ |
541 | 64 NULL, /* init process */ |
65 NULL, /* init thread */ | |
66 NULL, /* exit thread */ | |
67 NULL, /* exit process */ | |
68 NULL, /* exit master */ | |
69 NGX_MODULE_V1_PADDING | |
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70 }; |
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71 |
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72 |
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73 |
469 | 74 #if (NGX_HAVE_KQUEUE) |
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75 |
499 | 76 static ngx_int_t |
563 | 77 ngx_aio_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
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78 { |
563 | 79 if (ngx_kqueue_module_ctx.actions.init(cycle, timer) == NGX_ERROR) { |
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80 return NGX_ERROR; |
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81 } |
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82 |
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83 ngx_io = ngx_os_aio; |
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84 |
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85 ngx_event_flags = NGX_USE_AIO_EVENT; |
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86 ngx_event_actions = ngx_aio_module_ctx.actions; |
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87 |
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88 |
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89 return NGX_OK; |
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90 } |
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91 |
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92 |
499 | 93 static void |
94 ngx_aio_done(ngx_cycle_t *cycle) | |
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95 { |
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96 ngx_kqueue_module_ctx.actions.done(cycle); |
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97 } |
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98 |
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99 |
499 | 100 /* the event adding and deleting are needed for the listening sockets */ |
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101 |
499 | 102 static ngx_int_t |
103 ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags) | |
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104 { |
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105 return ngx_kqueue_module_ctx.actions.add(ev, event, flags); |
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106 } |
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107 |
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108 |
499 | 109 static ngx_int_t |
110 ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags) | |
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111 { |
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112 return ngx_kqueue_module_ctx.actions.del(ev, event, flags); |
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113 } |
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114 |
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115 |
499 | 116 static ngx_int_t |
117 ngx_aio_del_connection(ngx_connection_t *c, u_int flags) | |
94
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118 { |
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119 int rc; |
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120 |
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121 if (c->read->active == 0 && c->write->active == 0) { |
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122 return NGX_OK; |
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123 } |
94
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124 |
461 | 125 if (flags & NGX_CLOSE_EVENT) { |
126 return NGX_OK; | |
127 } | |
128 | |
95
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nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
129 rc = aio_cancel(c->fd, NULL); |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
130 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
131 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_cancel: %d", rc); |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
132 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
133 if (rc == AIO_CANCELED) { |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
134 c->read->active = c->write->active = 0; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
135 return NGX_OK; |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
136 } |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
137 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
138 if (rc == AIO_ALLDONE) { |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
139 c->read->active = c->write->active = 0; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
140 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
141 "aio_cancel() returned AIO_ALLDONE"); |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
142 return NGX_OK; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
143 } |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
144 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
145 if (rc == -1) { |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
146 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
147 "aio_cancel() failed"); |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
148 return NGX_ERROR; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
149 } |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
150 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
151 if (rc == AIO_NOTCANCELED) { |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
152 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
153 "aio_cancel() returned AIO_NOTCANCELED"); |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
154 |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
155 return NGX_ERROR; |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
156 } |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
157 |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
158 return NGX_OK; |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
159 } |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
160 |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
161 |
499 | 162 static ngx_int_t |
563 | 163 ngx_aio_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags) |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
164 { |
563 | 165 return ngx_kqueue_module_ctx.actions.process_events(cycle, timer, flags); |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
166 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
167 |
469 | 168 #endif /* NGX_HAVE_KQUEUE */ |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
169 |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
170 |
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
171 #if 0 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
172 |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
173 /* 1 */ |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
174 int ngx_posix_aio_process_events(ngx_log_t *log) |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
175 { |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
176 listen via SIGIO; |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
177 aio_* via SIGxxx; |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
178 |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
179 sigsuspend()/sigwaitinfo()/sigtimedwait(); |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
180 } |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
181 |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
182 /* 2 */ |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 int ngx_posix_aio_process_events(ngx_log_t *log) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
184 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 unmask signal |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
187 listen via SIGIO; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
189 /* BUG: SIGIO can be delivered before aio_*() */ |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
190 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
191 aio_suspend()/aiowait()/aio_waitcomplete() with timeout |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
192 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 mask signal |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
194 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 if (ngx_socket_errno == NGX_EINTR) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 look listen |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 select()/accept() nb listen sockets |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 else |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 aio |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
202 /* 3 */ |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 int ngx_posix_aio_process_events(ngx_log_t *log) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 { |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
205 #if 0 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 unmask signal |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
207 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
208 /* BUG: AIO signal can be delivered before select() */ |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
209 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
210 select(listen); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
212 mask signal |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
213 #endif |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
214 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
215 pselect(listen, mask); |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
217 if (ngx_socket_errno == NGX_EINTR) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 look ready array |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
221 void aio_sig_handler(int signo, siginfo_t *siginfo, void *context) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
222 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
223 push siginfo->si_value.sival_ptr |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
224 } |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
225 |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
226 #endif |