Mercurial > hg > nginx
annotate src/event/modules/ngx_aio_module.c @ 5602:b799b9d62c45
MIME: added application/xspf+xml MIME type (ticket #479).
author | Filipe da Silva <fdasilvayy@gmail.com> |
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date | Thu, 06 Mar 2014 10:51:08 +0100 |
parents | d620f497c50f |
children | 466bd63b63d1 |
rev | line source |
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1 |
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2 /* |
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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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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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13 extern ngx_event_module_t ngx_kqueue_module_ctx; |
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14 |
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15 |
563 | 16 static ngx_int_t ngx_aio_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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17 static void ngx_aio_done(ngx_cycle_t *cycle); |
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18 static ngx_int_t ngx_aio_add_event(ngx_event_t *ev, ngx_int_t event, |
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19 ngx_uint_t flags); |
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20 static ngx_int_t ngx_aio_del_event(ngx_event_t *ev, ngx_int_t event, |
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21 ngx_uint_t flags); |
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22 static ngx_int_t ngx_aio_del_connection(ngx_connection_t *c, ngx_uint_t flags); |
563 | 23 static ngx_int_t ngx_aio_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
24 ngx_uint_t flags); | |
93
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25 |
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26 |
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27 ngx_os_io_t ngx_os_aio = { |
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28 ngx_aio_read, |
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29 ngx_aio_read_chain, |
1689 | 30 NULL, |
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31 ngx_aio_write, |
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32 ngx_aio_write_chain, |
469 | 33 0 |
93
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34 }; |
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35 |
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36 |
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37 static ngx_str_t aio_name = ngx_string("aio"); |
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38 |
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39 ngx_event_module_t ngx_aio_module_ctx = { |
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40 &aio_name, |
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41 NULL, /* create configuration */ |
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42 NULL, /* init configuration */ |
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43 |
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44 { |
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45 ngx_aio_add_event, /* add an event */ |
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46 ngx_aio_del_event, /* delete an event */ |
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47 NULL, /* enable an event */ |
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48 NULL, /* disable an event */ |
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49 NULL, /* add an connection */ |
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50 ngx_aio_del_connection, /* delete an connection */ |
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51 NULL, /* process the changes */ |
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52 ngx_aio_process_events, /* process the events */ |
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53 ngx_aio_init, /* init the events */ |
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54 ngx_aio_done /* done the events */ |
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55 } |
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56 |
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57 }; |
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58 |
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59 ngx_module_t ngx_aio_module = { |
509 | 60 NGX_MODULE_V1, |
93
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61 &ngx_aio_module_ctx, /* module context */ |
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62 NULL, /* module directives */ |
96
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63 NGX_EVENT_MODULE, /* module type */ |
541 | 64 NULL, /* init master */ |
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65 NULL, /* init module */ |
541 | 66 NULL, /* init process */ |
67 NULL, /* init thread */ | |
68 NULL, /* exit thread */ | |
69 NULL, /* exit process */ | |
70 NULL, /* exit master */ | |
71 NGX_MODULE_V1_PADDING | |
93
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72 }; |
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73 |
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74 |
469 | 75 #if (NGX_HAVE_KQUEUE) |
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76 |
499 | 77 static ngx_int_t |
563 | 78 ngx_aio_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
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79 { |
563 | 80 if (ngx_kqueue_module_ctx.actions.init(cycle, timer) == NGX_ERROR) { |
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81 return NGX_ERROR; |
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82 } |
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83 |
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84 ngx_io = ngx_os_aio; |
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85 |
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86 ngx_event_flags = NGX_USE_AIO_EVENT; |
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87 ngx_event_actions = ngx_aio_module_ctx.actions; |
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88 |
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89 |
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90 return NGX_OK; |
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91 } |
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92 |
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93 |
499 | 94 static void |
95 ngx_aio_done(ngx_cycle_t *cycle) | |
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96 { |
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97 ngx_kqueue_module_ctx.actions.done(cycle); |
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98 } |
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99 |
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100 |
499 | 101 /* the event adding and deleting are needed for the listening sockets */ |
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102 |
499 | 103 static ngx_int_t |
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104 ngx_aio_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
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105 { |
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106 return ngx_kqueue_module_ctx.actions.add(ev, event, flags); |
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107 } |
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108 |
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109 |
499 | 110 static ngx_int_t |
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111 ngx_aio_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
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112 { |
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113 return ngx_kqueue_module_ctx.actions.del(ev, event, flags); |
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114 } |
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115 |
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116 |
499 | 117 static ngx_int_t |
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118 ngx_aio_del_connection(ngx_connection_t *c, ngx_uint_t flags) |
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119 { |
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120 int rc; |
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121 |
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122 if (c->read->active == 0 && c->write->active == 0) { |
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123 return NGX_OK; |
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124 } |
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125 |
461 | 126 if (flags & NGX_CLOSE_EVENT) { |
127 return NGX_OK; | |
128 } | |
129 | |
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130 rc = aio_cancel(c->fd, NULL); |
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131 |
257
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132 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_cancel: %d", rc); |
94
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133 |
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134 if (rc == AIO_CANCELED) { |
2847 | 135 c->read->active = 0; |
136 c->write->active = 0; | |
95
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137 return NGX_OK; |
94
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138 } |
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139 |
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140 if (rc == AIO_ALLDONE) { |
2847 | 141 c->read->active = 0; |
142 c->write->active = 0; | |
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143 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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144 "aio_cancel() returned AIO_ALLDONE"); |
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145 return NGX_OK; |
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146 } |
94
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147 |
95
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148 if (rc == -1) { |
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149 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
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150 "aio_cancel() failed"); |
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151 return NGX_ERROR; |
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152 } |
94
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153 |
95
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154 if (rc == AIO_NOTCANCELED) { |
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155 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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156 "aio_cancel() returned AIO_NOTCANCELED"); |
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157 |
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158 return NGX_ERROR; |
94
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159 } |
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160 |
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161 return NGX_OK; |
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162 } |
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163 |
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164 |
499 | 165 static ngx_int_t |
563 | 166 ngx_aio_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags) |
93
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167 { |
563 | 168 return ngx_kqueue_module_ctx.actions.process_events(cycle, timer, flags); |
93
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169 } |
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170 |
469 | 171 #endif /* NGX_HAVE_KQUEUE */ |