Mercurial > hg > nginx

annotate src/event/modules/ngx_aio_module.c @ 96:a23d010f356d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-05-27-16:18:54 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 27 May 2003 12:18:54 +0000
parents b48066122884
children ac69ab96328d
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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1
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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3 #include <ngx_core.h>
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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4 #include <ngx_event.h>
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5 #include <ngx_aio.h>
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6
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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7 #if (HAVE_KQUEUE)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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8 #include <ngx_kqueue_module.h>
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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9 #endif
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11
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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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);
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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14 static int ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags);
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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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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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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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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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 &aio_name,
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33 NULL, /* create configuration */
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34 NULL, /* init configuration */
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35
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36 {
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37 ngx_aio_add_event, /* add an event */
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38 ngx_aio_del_event, /* delete an event */
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39 NULL, /* enable an event */
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40 NULL, /* disable an event */
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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41 NULL, /* add an connection */
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8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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42 ngx_aio_del_connection, /* delete an connection */
93
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43 ngx_aio_process_events, /* process the events */
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44 ngx_aio_init, /* init the events */
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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45 ngx_aio_done /* done the events */
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46 }
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47
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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48 };
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Igor Sysoev <igor@sysoev.ru>
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49
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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50 ngx_module_t ngx_aio_module = {
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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51 NGX_MODULE,
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52 &ngx_aio_module_ctx, /* module context */
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53 NULL, /* module directives */
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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54 NGX_EVENT_MODULE, /* module type */
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55 NULL /* init module */
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56 };
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57
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59
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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60 #if (HAVE_KQUEUE)
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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62 static int ngx_aio_init(ngx_log_t *log)
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63 {
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parents: 91
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64 if (ngx_kqueue_module_ctx.actions.init(log) == NGX_ERROR) {
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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65 return NGX_ERROR;
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parents: 91
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66 }
63
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67
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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68 ngx_event_flags = NGX_HAVE_AIO_EVENT|NGX_USE_AIO_EVENT;
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69 ngx_event_actions = ngx_aio_module_ctx.actions;
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70 ngx_io = ngx_os_aio;
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71
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72
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73 return NGX_OK;
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74 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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77 static void ngx_aio_done(ngx_log_t *log)
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78 {
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79 ngx_kqueue_module_ctx.actions.done(log);
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80 }
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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82
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b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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83 /* The event adding and deleting are needed for the listening sockets */
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84
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85 static int ngx_aio_add_event(ngx_event_t *ev, int event, u_int flags)
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86 {
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87 return ngx_kqueue_module_ctx.actions.add(ev, event, flags);
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88 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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89
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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90
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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91 static int ngx_aio_del_event(ngx_event_t *ev, int event, u_int flags)
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92 {
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93 return ngx_kqueue_module_ctx.actions.del(ev, event, flags);
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94 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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95
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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96
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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97 static int ngx_aio_del_connection(ngx_connection_t *c)
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98 {
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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99 int rc;
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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100
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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101 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>
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102 return NGX_OK;
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
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103 }
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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104
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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105 rc = aio_cancel(c->fd, NULL);
94
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106
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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107 ngx_log_debug(c->log, "aio_cancel: %d" _ rc);
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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108
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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109 if (rc == AIO_CANCELED) {
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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parents: 94
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110 c->read->active = c->write->active = 0;
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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diff changeset
111 return NGX_OK;
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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112 }
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
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113
95
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114 if (rc == AIO_ALLDONE) {
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
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parents: 94
diff changeset
115 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
116 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
117 "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
118 return NGX_OK;
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
119 }
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
120
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
121 if (rc == -1) {
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
122 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
123 "aio_cancel() failed");
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
124 return NGX_ERROR;
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
125 }
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
126
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
127 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
128 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
129 "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
130
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
131 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
132 }
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 return NGX_OK;
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
135 }
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
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
138 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
139 {
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
140 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
141 }
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
142
95
b48066122884 nginx-0.0.1-2003-05-23-15:53:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
143 #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
144
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 6
diff changeset
145
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 6
diff changeset
146 #if 0
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
147
6
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
148 /* 1 */
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
149 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
150 {
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
151 listen via SIGIO;
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
152 aio_* via SIGxxx;
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
153
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
154 sigsuspend()/sigwaitinfo()/sigtimedwait();
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
155 }
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 /* 2 */
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
158 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
159 {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160 unmask signal
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
161
5
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 0
diff changeset
162 listen via SIGIO;
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163
5
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 0
diff changeset
164 /* 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
165
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 0
diff changeset
166 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
167
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168 mask signal
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 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
171 look listen
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
172 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
173 else
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 aio
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176
6
669801705ab1 nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 5
diff changeset
177 /* 3 */
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178 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
179 {
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
180 #if 0
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181 unmask signal
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182
5
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 0
diff changeset
183 /* 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
184
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 select(listen);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187 mask signal
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
188 #endif
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
189
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
190 pselect(listen, mask);
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 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
193 look ready array
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
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196 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
197 {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
198 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
199 }
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
200
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 6
diff changeset
201 #endif