Mercurial > hg > nginx-quic
annotate src/event/modules/ngx_epoll_module.c @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 05 Mar 2012 13:17:56 +0000 |
parents | 4919fb357a5d |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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7 |
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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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469 | 13 #if (NGX_TEST_BUILD_EPOLL) |
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14 |
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15 /* epoll declarations */ |
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16 |
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17 #define EPOLLIN 0x001 |
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18 #define EPOLLPRI 0x002 |
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19 #define EPOLLOUT 0x004 |
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20 #define EPOLLRDNORM 0x040 |
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21 #define EPOLLRDBAND 0x080 |
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22 #define EPOLLWRNORM 0x100 |
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23 #define EPOLLWRBAND 0x200 |
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24 #define EPOLLMSG 0x400 |
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25 #define EPOLLERR 0x008 |
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26 #define EPOLLHUP 0x010 |
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27 |
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28 #define EPOLLET 0x80000000 |
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29 #define EPOLLONESHOT 0x40000000 |
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30 |
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31 #define EPOLL_CTL_ADD 1 |
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32 #define EPOLL_CTL_DEL 2 |
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33 #define EPOLL_CTL_MOD 3 |
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34 |
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35 typedef union epoll_data { |
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36 void *ptr; |
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37 int fd; |
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38 uint32_t u32; |
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39 uint64_t u64; |
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40 } epoll_data_t; |
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41 |
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42 struct epoll_event { |
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43 uint32_t events; |
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44 epoll_data_t data; |
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45 }; |
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46 |
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47 int epoll_create(int size) |
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48 { |
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49 return -1; |
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50 } |
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51 |
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52 int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event) |
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53 { |
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54 return -1; |
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55 } |
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56 |
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57 int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout) |
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58 { |
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59 return -1; |
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60 } |
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61 |
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62 #if (NGX_HAVE_FILE_AIO) |
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63 |
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64 #define SYS_io_setup 245 |
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65 #define SYS_io_destroy 246 |
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66 #define SYS_io_getevents 247 |
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67 #define SYS_eventfd 323 |
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68 |
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69 typedef u_int aio_context_t; |
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70 |
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71 struct io_event { |
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72 uint64_t data; /* the data field from the iocb */ |
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73 uint64_t obj; /* what iocb this event came from */ |
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74 int64_t res; /* result code for this event */ |
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75 int64_t res2; /* secondary result */ |
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76 }; |
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77 |
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78 |
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79 int eventfd(u_int initval) |
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80 { |
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81 return -1; |
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82 } |
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83 |
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84 #endif |
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85 #endif |
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86 |
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87 |
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88 typedef struct { |
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89 ngx_uint_t events; |
4164 | 90 ngx_uint_t aio_requests; |
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91 } ngx_epoll_conf_t; |
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92 |
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93 |
563 | 94 static ngx_int_t ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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95 static void ngx_epoll_done(ngx_cycle_t *cycle); |
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96 static ngx_int_t ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, |
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97 ngx_uint_t flags); |
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98 static ngx_int_t ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event, |
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99 ngx_uint_t flags); |
499 | 100 static ngx_int_t ngx_epoll_add_connection(ngx_connection_t *c); |
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101 static ngx_int_t ngx_epoll_del_connection(ngx_connection_t *c, |
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102 ngx_uint_t flags); |
563 | 103 static ngx_int_t ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
104 ngx_uint_t flags); | |
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105 |
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106 #if (NGX_HAVE_FILE_AIO) |
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107 static void ngx_epoll_eventfd_handler(ngx_event_t *ev); |
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108 #endif |
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109 |
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110 static void *ngx_epoll_create_conf(ngx_cycle_t *cycle); |
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111 static char *ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf); |
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112 |
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113 static int ep = -1; |
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114 static struct epoll_event *event_list; |
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115 static ngx_uint_t nevents; |
245
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116 |
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117 #if (NGX_HAVE_FILE_AIO) |
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118 |
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119 int ngx_eventfd = -1; |
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120 aio_context_t ngx_aio_ctx = 0; |
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121 |
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122 static ngx_event_t ngx_eventfd_event; |
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123 static ngx_connection_t ngx_eventfd_conn; |
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124 |
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125 #endif |
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126 |
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127 static ngx_str_t epoll_name = ngx_string("epoll"); |
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128 |
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129 static ngx_command_t ngx_epoll_commands[] = { |
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130 |
499 | 131 { ngx_string("epoll_events"), |
132 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
133 ngx_conf_set_num_slot, | |
134 0, | |
135 offsetof(ngx_epoll_conf_t, events), | |
136 NULL }, | |
245
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137 |
4164 | 138 { ngx_string("worker_aio_requests"), |
139 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
140 ngx_conf_set_num_slot, | |
141 0, | |
142 offsetof(ngx_epoll_conf_t, aio_requests), | |
143 NULL }, | |
144 | |
499 | 145 ngx_null_command |
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146 }; |
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147 |
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148 |
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149 ngx_event_module_t ngx_epoll_module_ctx = { |
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150 &epoll_name, |
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151 ngx_epoll_create_conf, /* create configuration */ |
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152 ngx_epoll_init_conf, /* init configuration */ |
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153 |
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154 { |
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155 ngx_epoll_add_event, /* add an event */ |
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156 ngx_epoll_del_event, /* delete an event */ |
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157 ngx_epoll_add_event, /* enable an event */ |
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158 ngx_epoll_del_event, /* disable an event */ |
381
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159 ngx_epoll_add_connection, /* add an connection */ |
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160 ngx_epoll_del_connection, /* delete an connection */ |
380
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161 NULL, /* process the changes */ |
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162 ngx_epoll_process_events, /* process the events */ |
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163 ngx_epoll_init, /* init the events */ |
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164 ngx_epoll_done, /* done the events */ |
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165 } |
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166 }; |
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167 |
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168 ngx_module_t ngx_epoll_module = { |
509 | 169 NGX_MODULE_V1, |
245
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170 &ngx_epoll_module_ctx, /* module context */ |
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171 ngx_epoll_commands, /* module directives */ |
381
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172 NGX_EVENT_MODULE, /* module type */ |
541 | 173 NULL, /* init master */ |
381
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174 NULL, /* init module */ |
541 | 175 NULL, /* init process */ |
176 NULL, /* init thread */ | |
177 NULL, /* exit thread */ | |
178 NULL, /* exit process */ | |
179 NULL, /* exit master */ | |
180 NGX_MODULE_V1_PADDING | |
245
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181 }; |
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182 |
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183 |
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184 #if (NGX_HAVE_FILE_AIO) |
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185 |
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186 /* |
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187 * We call io_setup(), io_destroy() io_submit(), and io_getevents() directly |
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188 * as syscalls instead of libaio usage, because the library header file |
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189 * supports eventfd() since 0.3.107 version only. |
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190 * |
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191 * Also we do not use eventfd() in glibc, because glibc supports it |
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192 * since 2.8 version and glibc maps two syscalls eventfd() and eventfd2() |
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193 * into single eventfd() function with different number of parameters. |
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194 */ |
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195 |
4164 | 196 static int |
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197 io_setup(u_int nr_reqs, aio_context_t *ctx) |
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198 { |
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199 return syscall(SYS_io_setup, nr_reqs, ctx); |
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200 } |
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201 |
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202 |
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203 static int |
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204 io_destroy(aio_context_t ctx) |
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205 { |
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206 return syscall(SYS_io_destroy, ctx); |
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207 } |
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208 |
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209 |
4164 | 210 static int |
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211 io_getevents(aio_context_t ctx, long min_nr, long nr, struct io_event *events, |
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212 struct timespec *tmo) |
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213 { |
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214 return syscall(SYS_io_getevents, ctx, min_nr, nr, events, tmo); |
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215 } |
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216 |
4164 | 217 |
218 static void | |
219 ngx_epoll_aio_init(ngx_cycle_t *cycle, ngx_epoll_conf_t *epcf) | |
220 { | |
221 int n; | |
222 struct epoll_event ee; | |
223 | |
224 ngx_eventfd = syscall(SYS_eventfd, 0); | |
225 | |
226 if (ngx_eventfd == -1) { | |
227 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
228 "eventfd() failed"); | |
229 ngx_file_aio = 0; | |
230 return; | |
231 } | |
232 | |
233 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
234 "eventfd: %d", ngx_eventfd); | |
235 | |
236 n = 1; | |
237 | |
238 if (ioctl(ngx_eventfd, FIONBIO, &n) == -1) { | |
239 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
240 "ioctl(eventfd, FIONBIO) failed"); | |
241 goto failed; | |
242 } | |
243 | |
244 if (io_setup(epcf->aio_requests, &ngx_aio_ctx) == -1) { | |
245 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
246 "io_setup() failed"); | |
247 goto failed; | |
248 } | |
249 | |
250 ngx_eventfd_event.data = &ngx_eventfd_conn; | |
251 ngx_eventfd_event.handler = ngx_epoll_eventfd_handler; | |
252 ngx_eventfd_event.log = cycle->log; | |
253 ngx_eventfd_event.active = 1; | |
254 ngx_eventfd_conn.fd = ngx_eventfd; | |
255 ngx_eventfd_conn.read = &ngx_eventfd_event; | |
256 ngx_eventfd_conn.log = cycle->log; | |
257 | |
258 ee.events = EPOLLIN|EPOLLET; | |
259 ee.data.ptr = &ngx_eventfd_conn; | |
260 | |
261 if (epoll_ctl(ep, EPOLL_CTL_ADD, ngx_eventfd, &ee) != -1) { | |
262 return; | |
263 } | |
264 | |
265 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | |
266 "epoll_ctl(EPOLL_CTL_ADD, eventfd) failed"); | |
267 | |
268 if (io_destroy(ngx_aio_ctx) == -1) { | |
269 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
270 "io_destroy() failed"); | |
271 } | |
272 | |
273 failed: | |
274 | |
275 if (close(ngx_eventfd) == -1) { | |
276 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
277 "eventfd close() failed"); | |
278 } | |
279 | |
280 ngx_eventfd = -1; | |
281 ngx_aio_ctx = 0; | |
282 ngx_file_aio = 0; | |
283 } | |
284 | |
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285 #endif |
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286 |
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287 |
499 | 288 static ngx_int_t |
563 | 289 ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
245
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290 { |
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291 ngx_epoll_conf_t *epcf; |
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292 |
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293 epcf = ngx_event_get_conf(cycle->conf_ctx, ngx_epoll_module); |
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294 |
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295 if (ep == -1) { |
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296 ep = epoll_create(cycle->connection_n / 2); |
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297 |
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298 if (ep == -1) { |
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299 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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300 "epoll_create() failed"); |
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301 return NGX_ERROR; |
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302 } |
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303 |
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304 #if (NGX_HAVE_FILE_AIO) |
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305 |
4164 | 306 ngx_epoll_aio_init(cycle, epcf); |
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307 |
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308 #endif |
245
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309 } |
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310 |
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311 if (nevents < epcf->events) { |
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312 if (event_list) { |
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313 ngx_free(event_list); |
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314 } |
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315 |
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316 event_list = ngx_alloc(sizeof(struct epoll_event) * epcf->events, |
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317 cycle->log); |
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318 if (event_list == NULL) { |
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319 return NGX_ERROR; |
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320 } |
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321 } |
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322 |
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323 nevents = epcf->events; |
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324 |
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325 ngx_io = ngx_os_io; |
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326 |
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327 ngx_event_actions = ngx_epoll_module_ctx.actions; |
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328 |
469 | 329 #if (NGX_HAVE_CLEAR_EVENT) |
306
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330 ngx_event_flags = NGX_USE_CLEAR_EVENT |
259
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331 #else |
306
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332 ngx_event_flags = NGX_USE_LEVEL_EVENT |
259
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333 #endif |
455 | 334 |NGX_USE_GREEDY_EVENT |
381
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380
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335 |NGX_USE_EPOLL_EVENT; |
245
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336 |
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337 return NGX_OK; |
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338 } |
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339 |
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340 |
499 | 341 static void |
342 ngx_epoll_done(ngx_cycle_t *cycle) | |
245
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343 { |
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344 if (close(ep) == -1) { |
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345 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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346 "epoll close() failed"); |
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347 } |
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348 |
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349 ep = -1; |
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350 |
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351 #if (NGX_HAVE_FILE_AIO) |
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352 |
4164 | 353 if (ngx_eventfd != -1) { |
354 | |
355 if (io_destroy(ngx_aio_ctx) == -1) { | |
356 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
357 "io_destroy() failed"); | |
358 } | |
359 | |
360 if (close(ngx_eventfd) == -1) { | |
361 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
362 "eventfd close() failed"); | |
363 } | |
364 | |
365 ngx_eventfd = -1; | |
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366 } |
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367 |
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368 ngx_aio_ctx = 0; |
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369 |
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370 #endif |
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371 |
245
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372 ngx_free(event_list); |
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373 |
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374 event_list = NULL; |
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375 nevents = 0; |
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376 } |
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377 |
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378 |
499 | 379 static ngx_int_t |
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380 ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
246
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381 { |
483 | 382 int op; |
383 uint32_t events, prev; | |
259
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384 ngx_event_t *e; |
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385 ngx_connection_t *c; |
258
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386 struct epoll_event ee; |
246
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387 |
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388 c = ev->data; |
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389 |
483 | 390 events = (uint32_t) event; |
391 | |
246
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392 if (event == NGX_READ_EVENT) { |
259
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393 e = c->write; |
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394 prev = EPOLLOUT; |
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395 #if (NGX_READ_EVENT != EPOLLIN) |
483 | 396 events = EPOLLIN; |
257
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256
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397 #endif |
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256
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398 |
259
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399 } else { |
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400 e = c->read; |
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401 prev = EPOLLIN; |
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402 #if (NGX_WRITE_EVENT != EPOLLOUT) |
483 | 403 events = EPOLLOUT; |
259
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404 #endif |
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405 } |
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406 |
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407 if (e->active) { |
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408 op = EPOLL_CTL_MOD; |
483 | 409 events |= prev; |
246
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410 |
259
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411 } else { |
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412 op = EPOLL_CTL_ADD; |
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413 } |
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414 |
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415 ee.events = events | (uint32_t) flags; |
581 | 416 ee.data.ptr = (void *) ((uintptr_t) c | ev->instance); |
246
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417 |
259
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|
418 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 419 "epoll add event: fd:%d op:%d ev:%08XD", |
259
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420 c->fd, op, ee.events); |
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421 |
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422 if (epoll_ctl(ep, op, c->fd, &ee) == -1) { |
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423 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
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|
424 "epoll_ctl(%d, %d) failed", op, c->fd); |
246
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425 return NGX_ERROR; |
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426 } |
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427 |
247
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246
diff
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428 ev->active = 1; |
259
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diff
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429 #if 0 |
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diff
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430 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0; |
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431 #endif |
247
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246
diff
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|
432 |
246
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433 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
434 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
435 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
436 |
499 | 437 static ngx_int_t |
1354
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parents:
663
diff
changeset
|
438 ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
439 { |
483 | 440 int op; |
441 uint32_t prev; | |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
442 ngx_event_t *e; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
443 ngx_connection_t *c; |
258
733dffa1fe97
nginx-0.0.2-2004-02-11-10:19:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
257
diff
changeset
|
444 struct epoll_event ee; |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
445 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
446 /* |
483 | 447 * when the file descriptor is closed, the epoll automatically deletes |
448 * it from its queue, so we do not need to delete explicity the event | |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
449 * before the closing the file descriptor |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
450 */ |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
451 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
452 if (flags & NGX_CLOSE_EVENT) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
453 ev->active = 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
454 return NGX_OK; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
455 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
456 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
457 c = ev->data; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
458 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
459 if (event == NGX_READ_EVENT) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
460 e = c->write; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
461 prev = EPOLLOUT; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
462 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
463 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
464 e = c->read; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
465 prev = EPOLLIN; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
466 } |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
467 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
468 if (e->active) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
469 op = EPOLL_CTL_MOD; |
1354
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parents:
663
diff
changeset
|
470 ee.events = prev | (uint32_t) flags; |
581 | 471 ee.data.ptr = (void *) ((uintptr_t) c | ev->instance); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
472 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
473 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
474 op = EPOLL_CTL_DEL; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
475 ee.events = 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
476 ee.data.ptr = NULL; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
477 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
478 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
479 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 480 "epoll del event: fd:%d op:%d ev:%08XD", |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
481 c->fd, op, ee.events); |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
482 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
483 if (epoll_ctl(ep, op, c->fd, &ee) == -1) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
484 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
485 "epoll_ctl(%d, %d) failed", op, c->fd); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
486 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
487 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
488 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
489 ev->active = 0; |
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
490 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
491 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
492 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
493 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
494 |
499 | 495 static ngx_int_t |
496 ngx_epoll_add_connection(ngx_connection_t *c) | |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
497 { |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
498 struct epoll_event ee; |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
499 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
500 ee.events = EPOLLIN|EPOLLOUT|EPOLLET; |
581 | 501 ee.data.ptr = (void *) ((uintptr_t) c | c->read->instance); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
502 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
503 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 504 "epoll add connection: fd:%d ev:%08XD", c->fd, ee.events); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
505 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
506 if (epoll_ctl(ep, EPOLL_CTL_ADD, c->fd, &ee) == -1) { |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
507 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
508 "epoll_ctl(EPOLL_CTL_ADD, %d) failed", c->fd); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
509 return NGX_ERROR; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
510 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
511 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
512 c->read->active = 1; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
513 c->write->active = 1; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
514 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
515 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
516 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
517 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
518 |
499 | 519 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
520 ngx_epoll_del_connection(ngx_connection_t *c, ngx_uint_t flags) |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
521 { |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
522 int op; |
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
523 struct epoll_event ee; |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
524 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
525 /* |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
526 * when the file descriptor is closed the epoll automatically deletes |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
527 * it from its queue so we do not need to delete explicity the event |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
528 * before the closing the file descriptor |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
529 */ |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
530 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
531 if (flags & NGX_CLOSE_EVENT) { |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
532 c->read->active = 0; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
533 c->write->active = 0; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
534 return NGX_OK; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
535 } |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
536 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
537 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
538 "epoll del connection: fd:%d", c->fd); |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
539 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
540 op = EPOLL_CTL_DEL; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
541 ee.events = 0; |
581 | 542 ee.data.ptr = NULL; |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
543 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
544 if (epoll_ctl(ep, op, c->fd, &ee) == -1) { |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
545 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
546 "epoll_ctl(%d, %d) failed", op, c->fd); |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
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547 return NGX_ERROR; |
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380
diff
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|
548 } |
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380
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549 |
245
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parents:
diff
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|
550 c->read->active = 0; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
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|
551 c->write->active = 0; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
552 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
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|
553 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
554 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
555 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
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|
556 |
499 | 557 static ngx_int_t |
563 | 558 ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags) |
245
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parents:
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|
559 { |
306
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560 int events; |
483 | 561 uint32_t revents; |
306
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562 ngx_int_t instance, i; |
563 | 563 ngx_uint_t level; |
309
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diff
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564 ngx_err_t err; |
563 | 565 ngx_event_t *rev, *wev, **queue; |
306
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566 ngx_connection_t *c; |
245
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parents:
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|
567 |
316
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315
diff
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|
568 /* NGX_TIMER_INFINITE == INFTIM */ |
a0beefedaf94
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315
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569 |
305
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570 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 571 "epoll timer: %M", timer); |
245
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parents:
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|
572 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
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663
diff
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573 events = epoll_wait(ep, event_list, (int) nevents, timer); |
245
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574 |
3043 | 575 err = (events == -1) ? ngx_errno : 0; |
245
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parents:
diff
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|
576 |
3473
0299cf5856fc
do not update time in the timer signal handler,
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diff
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|
577 if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) { |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
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578 ngx_time_update(); |
563 | 579 } |
245
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parents:
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|
580 |
e6c005b66b3a
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parents:
diff
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|
581 if (err) { |
563 | 582 if (err == NGX_EINTR) { |
583 | |
584 if (ngx_event_timer_alarm) { | |
585 ngx_event_timer_alarm = 0; | |
586 return NGX_OK; | |
587 } | |
577 | 588 |
563 | 589 level = NGX_LOG_INFO; |
577 | 590 |
591 } else { | |
563 | 592 level = NGX_LOG_ALERT; |
593 } | |
594 | |
595 ngx_log_error(level, cycle->log, err, "epoll_wait() failed"); | |
245
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parents:
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|
596 return NGX_ERROR; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
597 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
598 |
563 | 599 if (events == 0) { |
567 | 600 if (timer != NGX_TIMER_INFINITE) { |
601 return NGX_OK; | |
602 } | |
603 | |
604 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
605 "epoll_wait() returned no events without timeout"); | |
606 return NGX_ERROR; | |
563 | 607 } |
381
02a511569afb
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|
608 |
563 | 609 ngx_mutex_lock(ngx_posted_events_mutex); |
306
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parents:
305
diff
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|
610 |
245
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parents:
diff
changeset
|
611 for (i = 0; i < events; i++) { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
612 c = event_list[i].data.ptr; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
613 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
614 instance = (uintptr_t) c & 1; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
615 c = (ngx_connection_t *) ((uintptr_t) c & (uintptr_t) ~1); |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
616 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
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diff
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|
617 rev = c->read; |
305
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259
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|
618 |
381
02a511569afb
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380
diff
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|
619 if (c->fd == -1 || rev->instance != instance) { |
245
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parents:
diff
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|
620 |
e6c005b66b3a
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parents:
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|
621 /* |
247
008276b9e061
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246
diff
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|
622 * the stale event from a file descriptor |
245
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parents:
diff
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|
623 * that was just closed in this iteration |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
624 */ |
e6c005b66b3a
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parents:
diff
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|
625 |
312
f5431a4bbc7d
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parents:
311
diff
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|
626 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 627 "epoll: stale event %p", c); |
245
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parents:
diff
changeset
|
628 continue; |
e6c005b66b3a
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parents:
diff
changeset
|
629 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
630 |
483 | 631 revents = event_list[i].events; |
632 | |
3902
159b58f9c0bd
fix building by gcc 4.6 without --with-debug
Igor Sysoev <igor@sysoev.ru>
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3475
diff
changeset
|
633 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 634 "epoll: fd:%d ev:%04XD d:%p", |
577 | 635 c->fd, revents, event_list[i].data.ptr); |
311
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309
diff
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|
636 |
483 | 637 if (revents & (EPOLLERR|EPOLLHUP)) { |
3902
159b58f9c0bd
fix building by gcc 4.6 without --with-debug
Igor Sysoev <igor@sysoev.ru>
parents:
3475
diff
changeset
|
638 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 639 "epoll_wait() error on fd:%d ev:%04XD", |
483 | 640 c->fd, revents); |
641 } | |
642 | |
663 | 643 #if 0 |
483 | 644 if (revents & ~(EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP)) { |
3902
159b58f9c0bd
fix building by gcc 4.6 without --with-debug
Igor Sysoev <igor@sysoev.ru>
parents:
3475
diff
changeset
|
645 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
483 | 646 "strange epoll_wait() events fd:%d ev:%04XD", |
647 c->fd, revents); | |
247
008276b9e061
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246
diff
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|
648 } |
663 | 649 #endif |
245
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parents:
diff
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|
650 |
483 | 651 if ((revents & (EPOLLERR|EPOLLHUP)) |
652 && (revents & (EPOLLIN|EPOLLOUT)) == 0) | |
653 { | |
654 /* | |
655 * if the error events were returned without EPOLLIN or EPOLLOUT, | |
656 * then add these flags to handle the events at least in one | |
657 * active handler | |
658 */ | |
659 | |
660 revents |= EPOLLIN|EPOLLOUT; | |
247
008276b9e061
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246
diff
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|
661 } |
008276b9e061
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246
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|
662 |
563 | 663 if ((revents & EPOLLIN) && rev->active) { |
664 | |
665 if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { | |
666 rev->posted_ready = 1; | |
667 | |
668 } else { | |
669 rev->ready = 1; | |
670 } | |
671 | |
672 if (flags & NGX_POST_EVENTS) { | |
673 queue = (ngx_event_t **) (rev->accept ? | |
674 &ngx_posted_accept_events : &ngx_posted_events); | |
675 | |
676 ngx_locked_post_event(rev, queue); | |
677 | |
678 } else { | |
679 rev->handler(rev); | |
680 } | |
681 } | |
682 | |
381
02a511569afb
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parents:
380
diff
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|
683 wev = c->write; |
02a511569afb
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380
diff
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|
684 |
483 | 685 if ((revents & EPOLLOUT) && wev->active) { |
686 | |
4430 | 687 if (c->fd == -1 || wev->instance != instance) { |
688 | |
689 /* | |
690 * the stale event from a file descriptor | |
691 * that was just closed in this iteration | |
692 */ | |
693 | |
694 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
695 "epoll: stale event %p", c); | |
696 continue; | |
697 } | |
698 | |
563 | 699 if (flags & NGX_POST_THREAD_EVENTS) { |
381
02a511569afb
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parents:
380
diff
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|
700 wev->posted_ready = 1; |
306
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305
diff
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|
701 |
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diff
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|
702 } else { |
381
02a511569afb
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parents:
380
diff
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|
703 wev->ready = 1; |
02a511569afb
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380
diff
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|
704 } |
02a511569afb
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380
diff
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|
705 |
563 | 706 if (flags & NGX_POST_EVENTS) { |
707 ngx_locked_post_event(wev, &ngx_posted_events); | |
306
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|
708 |
563 | 709 } else { |
710 wev->handler(wev); | |
306
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305
diff
changeset
|
711 } |
245
e6c005b66b3a
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parents:
diff
changeset
|
712 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
713 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
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|
714 |
563 | 715 ngx_mutex_unlock(ngx_posted_events_mutex); |
306
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305
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|
716 |
245
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parents:
diff
changeset
|
717 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
718 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
719 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
720 |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
721 #if (NGX_HAVE_FILE_AIO) |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
722 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
723 static void |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
724 ngx_epoll_eventfd_handler(ngx_event_t *ev) |
6060225e9261
FreeBSD and Linux AIO support
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parents:
3044
diff
changeset
|
725 { |
4164 | 726 int n, events; |
727 long i; | |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
728 uint64_t ready; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
729 ngx_err_t err; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
730 ngx_event_t *e; |
6060225e9261
FreeBSD and Linux AIO support
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parents:
3044
diff
changeset
|
731 ngx_event_aio_t *aio; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
732 struct io_event event[64]; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
733 struct timespec ts; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
734 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
735 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "eventfd handler"); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
736 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
737 n = read(ngx_eventfd, &ready, 8); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
738 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
739 err = ngx_errno; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
740 |
6060225e9261
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parents:
3044
diff
changeset
|
741 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, "eventfd: %d", n); |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
742 |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
743 if (n != 8) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
744 if (n == -1) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
745 if (err == NGX_EAGAIN) { |
6060225e9261
FreeBSD and Linux AIO support
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parents:
3044
diff
changeset
|
746 return; |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
747 } |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
748 |
6060225e9261
FreeBSD and Linux AIO support
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diff
changeset
|
749 ngx_log_error(NGX_LOG_ALERT, ev->log, err, "read(eventfd) failed"); |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
750 return; |
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
751 } |
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parents:
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diff
changeset
|
752 |
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parents:
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diff
changeset
|
753 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
754 "read(eventfd) returned only %d bytes", n); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
755 return; |
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parents:
3044
diff
changeset
|
756 } |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
757 |
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FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
758 ts.tv_sec = 0; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
759 ts.tv_nsec = 0; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
760 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
761 while (ready) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
762 |
6060225e9261
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parents:
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diff
changeset
|
763 events = io_getevents(ngx_aio_ctx, 1, 64, event, &ts); |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
764 |
6060225e9261
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parents:
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diff
changeset
|
765 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
766 "io_getevents: %l", events); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
767 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
768 if (events > 0) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
769 ready -= events; |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
770 |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
771 for (i = 0; i < events; i++) { |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
772 |
6060225e9261
FreeBSD and Linux AIO support
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diff
changeset
|
773 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
774 "io_event: %uXL %uXL %L %L", |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
775 event[i].data, event[i].obj, |
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FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
776 event[i].res, event[i].res2); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
777 |
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FreeBSD and Linux AIO support
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parents:
3044
diff
changeset
|
778 e = (ngx_event_t *) (uintptr_t) event[i].data; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
779 |
6060225e9261
FreeBSD and Linux AIO support
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parents:
3044
diff
changeset
|
780 e->complete = 1; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
781 e->active = 0; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
782 e->ready = 1; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
783 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
784 aio = e->data; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
785 aio->res = event[i].res; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
786 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
787 ngx_post_event(e, &ngx_posted_events); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
788 } |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
789 |
6060225e9261
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Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
790 continue; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
791 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
792 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
793 if (events == 0) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
794 return; |
6060225e9261
FreeBSD and Linux AIO support
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parents:
3044
diff
changeset
|
795 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
796 |
4164 | 797 /* events == -1 */ |
798 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, | |
799 "io_getevents() failed"); | |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
800 return; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
801 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
802 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
803 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
804 #endif |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
805 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
806 |
499 | 807 static void * |
808 ngx_epoll_create_conf(ngx_cycle_t *cycle) | |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
809 { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
810 ngx_epoll_conf_t *epcf; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
811 |
501 | 812 epcf = ngx_palloc(cycle->pool, sizeof(ngx_epoll_conf_t)); |
813 if (epcf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2062
diff
changeset
|
814 return NULL; |
501 | 815 } |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
816 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
817 epcf->events = NGX_CONF_UNSET; |
4164 | 818 epcf->aio_requests = NGX_CONF_UNSET; |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
819 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
820 return epcf; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
821 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
822 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
823 |
499 | 824 static char * |
825 ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf) | |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
826 { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
827 ngx_epoll_conf_t *epcf = conf; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
828 |
663 | 829 ngx_conf_init_uint_value(epcf->events, 512); |
4164 | 830 ngx_conf_init_uint_value(epcf->aio_requests, 32); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
831 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
832 return NGX_CONF_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
833 } |