Mercurial > hg > nginx
annotate src/event/modules/ngx_aio_module.c @ 4437:3a1507f48686 stable-1.0
Merge of r4372, r4373, r4374:
SCGI fixes:
*) Fixed incorrect use of r->http_version in scgi module.
The r->http_version is a version of client's request, and modules
must not set it unless they are really willing to downgrade protocol
version used for a response (i.e. to HTTP/0.9 if no response headers
are available). In neither case r->http_version may be upgraded.
The former code downgraded response from HTTP/1.1 to HTTP/1.0 for no
reason, causing various problems (see ticket #66). It was also
possible that HTTP/0.9 requests were upgraded to HTTP/1.0.
*) Removed duplicate function declaration.
*) Removed error if there is no Status header.
The SCGI specification doesn't specify format of the response, and
assuming CGI specs should be used there is no reason to complain.
RFC 3875 explicitly states that "A Status header field is optional,
and status 200 'OK' is assumed if it is omitted".
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sun, 05 Feb 2012 13:53:50 +0000 |
parents | a1d54c705f38 |
children | d620f497c50f |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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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 |
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12 extern ngx_event_module_t ngx_kqueue_module_ctx; |
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13 |
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14 |
563 | 15 static ngx_int_t ngx_aio_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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16 static void ngx_aio_done(ngx_cycle_t *cycle); |
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17 static ngx_int_t ngx_aio_add_event(ngx_event_t *ev, ngx_int_t event, |
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18 ngx_uint_t flags); |
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19 static ngx_int_t ngx_aio_del_event(ngx_event_t *ev, ngx_int_t event, |
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20 ngx_uint_t flags); |
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21 static ngx_int_t ngx_aio_del_connection(ngx_connection_t *c, ngx_uint_t 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, |
1689 | 29 NULL, |
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30 ngx_aio_write, |
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31 ngx_aio_write_chain, |
469 | 32 0 |
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33 }; |
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34 |
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35 |
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36 static ngx_str_t aio_name = ngx_string("aio"); |
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37 |
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38 ngx_event_module_t ngx_aio_module_ctx = { |
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39 &aio_name, |
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40 NULL, /* create configuration */ |
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41 NULL, /* init configuration */ |
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42 |
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43 { |
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44 ngx_aio_add_event, /* add an event */ |
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45 ngx_aio_del_event, /* delete an event */ |
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46 NULL, /* enable an event */ |
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47 NULL, /* disable an event */ |
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48 NULL, /* add an connection */ |
94
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49 ngx_aio_del_connection, /* delete an connection */ |
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50 NULL, /* process the changes */ |
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51 ngx_aio_process_events, /* process the events */ |
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52 ngx_aio_init, /* init the events */ |
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53 ngx_aio_done /* done the events */ |
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54 } |
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55 |
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56 }; |
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57 |
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58 ngx_module_t ngx_aio_module = { |
509 | 59 NGX_MODULE_V1, |
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60 &ngx_aio_module_ctx, /* module context */ |
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61 NULL, /* module directives */ |
96
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62 NGX_EVENT_MODULE, /* module type */ |
541 | 63 NULL, /* init master */ |
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64 NULL, /* init module */ |
541 | 65 NULL, /* init process */ |
66 NULL, /* init thread */ | |
67 NULL, /* exit thread */ | |
68 NULL, /* exit process */ | |
69 NULL, /* exit master */ | |
70 NGX_MODULE_V1_PADDING | |
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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) | |
93
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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 |
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103 ngx_aio_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t 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 |
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110 ngx_aio_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t 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 |
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Igor Sysoev <igor@sysoev.ru>
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117 ngx_aio_del_connection(ngx_connection_t *c, ngx_uint_t flags) |
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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 } |
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124 |
461 | 125 if (flags & NGX_CLOSE_EVENT) { |
126 return NGX_OK; | |
127 } | |
128 | |
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129 rc = aio_cancel(c->fd, NULL); |
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130 |
257
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131 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_cancel: %d", rc); |
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132 |
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133 if (rc == AIO_CANCELED) { |
2847 | 134 c->read->active = 0; |
135 c->write->active = 0; | |
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136 return NGX_OK; |
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137 } |
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138 |
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139 if (rc == AIO_ALLDONE) { |
2847 | 140 c->read->active = 0; |
141 c->write->active = 0; | |
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142 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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143 "aio_cancel() returned AIO_ALLDONE"); |
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144 return NGX_OK; |
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145 } |
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146 |
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147 if (rc == -1) { |
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148 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
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149 "aio_cancel() failed"); |
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150 return NGX_ERROR; |
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151 } |
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152 |
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153 if (rc == AIO_NOTCANCELED) { |
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154 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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155 "aio_cancel() returned AIO_NOTCANCELED"); |
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156 |
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157 return NGX_ERROR; |
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158 } |
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159 |
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160 return NGX_OK; |
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161 } |
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162 |
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163 |
499 | 164 static ngx_int_t |
563 | 165 ngx_aio_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags) |
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166 { |
563 | 167 return ngx_kqueue_module_ctx.actions.process_events(cycle, timer, flags); |
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168 } |
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169 |
469 | 170 #endif /* NGX_HAVE_KQUEUE */ |