Mercurial > hg > nginx
annotate src/event/modules/ngx_aio_module.c @ 95:b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 23 May 2003 11:53:01 +0000 |
parents | 8220378432a8 |
children | a23d010f356d |
rev | line source |
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nginx-0.0.1-2002-08-06-20:39:45 import
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_event.h> |
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5 #include <ngx_aio.h> |
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6 |
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7 #if (HAVE_KQUEUE) |
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8 #include <ngx_kqueue_module.h> |
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9 #endif |
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10 |
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12 static int ngx_aio_init(ngx_log_t *log); |
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13 static void ngx_aio_done(ngx_log_t *log); |
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14 static int ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags); |
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15 static int ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags); |
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16 static int ngx_aio_del_connection(ngx_connection_t *c); |
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17 static int ngx_aio_process_events(ngx_log_t *log); |
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18 |
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19 |
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20 ngx_os_io_t ngx_os_aio = { |
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21 ngx_aio_read, |
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22 NULL, |
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23 ngx_aio_write, |
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24 ngx_aio_write_chain, |
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25 NGX_HAVE_ZEROCOPY |
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26 }; |
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27 |
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28 |
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29 static ngx_str_t aio_name = ngx_string("aio"); |
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30 |
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31 ngx_event_module_t ngx_aio_module_ctx = { |
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32 NGX_EVENT_MODULE, |
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33 &aio_name, |
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34 NULL, /* create configuration */ |
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35 NULL, /* init configuration */ |
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36 |
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37 { |
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38 ngx_aio_add_event, /* add an event */ |
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39 ngx_aio_del_event, /* delete an event */ |
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40 NULL, /* enable an event */ |
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41 NULL, /* disable an event */ |
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42 NULL, /* add an connection */ |
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43 ngx_aio_del_connection, /* delete an connection */ |
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44 ngx_aio_process_events, /* process the events */ |
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45 ngx_aio_init, /* init the events */ |
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46 ngx_aio_done /* done the events */ |
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47 } |
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48 |
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49 }; |
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50 |
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51 ngx_module_t ngx_aio_module = { |
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52 &ngx_aio_module_ctx, /* module context */ |
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53 0, /* module index */ |
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54 NULL, /* module directives */ |
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55 NGX_EVENT_MODULE_TYPE, /* module type */ |
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56 NULL /* init module */ |
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57 }; |
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58 |
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59 |
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60 |
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61 #if (HAVE_KQUEUE) |
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62 |
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63 static int ngx_aio_init(ngx_log_t *log) |
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64 { |
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65 if (ngx_kqueue_module_ctx.actions.init(log) == NGX_ERROR) { |
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66 return NGX_ERROR; |
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67 } |
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68 |
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69 ngx_event_flags = NGX_HAVE_AIO_EVENT|NGX_USE_AIO_EVENT; |
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70 ngx_event_actions = ngx_aio_module_ctx.actions; |
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71 ngx_io = ngx_os_aio; |
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72 |
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73 |
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74 return NGX_OK; |
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75 } |
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76 |
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77 |
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78 static void ngx_aio_done(ngx_log_t *log) |
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79 { |
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80 ngx_kqueue_module_ctx.actions.done(log); |
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81 } |
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82 |
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83 |
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84 /* The event adding and deleting are needed for the listening sockets */ |
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85 |
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86 static int ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags) |
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87 { |
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88 return ngx_kqueue_module_ctx.actions.add(ev, event, flags); |
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89 } |
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90 |
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91 |
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92 static int ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags) |
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93 { |
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94 return ngx_kqueue_module_ctx.actions.del(ev, event, flags); |
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95 } |
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96 |
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97 |
94
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98 static int ngx_aio_del_connection(ngx_connection_t *c) |
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99 { |
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100 int rc; |
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101 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
102 if (c->read->active == 0 && 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
|
103 return NGX_OK; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
104 } |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
105 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
106 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
|
107 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
108 ngx_log_debug(c->log, "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
|
109 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
110 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
|
111 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
|
112 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
|
113 } |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
114 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
115 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
|
116 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
|
117 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
|
118 "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
|
119 return NGX_OK; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
120 } |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
121 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
122 if (rc == -1) { |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
123 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
|
124 "aio_cancel() failed"); |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
125 return NGX_ERROR; |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
126 } |
94
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
127 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
128 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
|
129 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
|
130 "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
|
131 |
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
132 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
|
133 } |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
134 |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
135 return NGX_OK; |
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 |
8220378432a8
nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
93
diff
changeset
|
138 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
139 static int ngx_aio_process_events(ngx_log_t *log) |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
140 { |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
141 return ngx_kqueue_module_ctx.actions.process(log); |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
142 } |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
143 |
95
b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
144 #endif /* HAVE_KQUEUE */ |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
145 |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
146 |
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
147 #if 0 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
148 |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
149 /* 1 */ |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
150 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
|
151 { |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
152 listen via SIGIO; |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
153 aio_* via SIGxxx; |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
154 |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
155 sigsuspend()/sigwaitinfo()/sigtimedwait(); |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
156 } |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
157 |
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
158 /* 2 */ |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
159 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
|
160 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
161 unmask signal |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
163 listen via SIGIO; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
164 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
165 /* 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
|
166 |
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
167 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
|
168 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 mask signal |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
171 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
|
172 look listen |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 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
|
174 else |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 aio |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
5
diff
changeset
|
178 /* 3 */ |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
179 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
|
180 { |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
181 #if 0 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
182 unmask signal |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 |
5
62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
184 /* 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
|
185 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 select(listen); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 mask signal |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
189 #endif |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
190 |
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
191 pselect(listen, mask); |
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 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
|
194 look ready array |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 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
|
198 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 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
|
200 } |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
201 |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
202 #endif |