Mercurial > hg > nginx-quic
annotate src/event/modules/ngx_epoll_module.c @ 4915:e62219793beb
Upstream: better detection of connect() failures with kqueue.
Pending EOF might be reported on both read and write events, whichever
comes first, so check both of them.
Patch by Yichun Zhang (agentzh), slightly modified.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 16 Nov 2012 18:29:19 +0000 |
parents | 4c36e15651f7 |
children | 36b58ddb566d |
rev | line source |
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245
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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. |
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5 */ |
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6 |
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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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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 |
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48 int epoll_create(int size); |
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50 int epoll_create(int size) |
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51 { |
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52 return -1; |
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53 } |
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54 |
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55 |
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56 int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event); |
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58 int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event) |
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59 { |
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60 return -1; |
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61 } |
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63 |
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64 int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout); |
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65 |
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66 int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout) |
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67 { |
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68 return -1; |
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69 } |
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70 |
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71 #if (NGX_HAVE_FILE_AIO) |
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72 |
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73 #define SYS_io_setup 245 |
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74 #define SYS_io_destroy 246 |
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75 #define SYS_io_getevents 247 |
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76 #define SYS_eventfd 323 |
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77 |
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78 typedef u_int aio_context_t; |
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79 |
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80 struct io_event { |
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81 uint64_t data; /* the data field from the iocb */ |
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82 uint64_t obj; /* what iocb this event came from */ |
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83 int64_t res; /* result code for this event */ |
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84 int64_t res2; /* secondary result */ |
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85 }; |
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86 |
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87 |
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88 #endif |
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89 #endif |
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90 |
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91 |
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92 typedef struct { |
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93 ngx_uint_t events; |
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94 ngx_uint_t aio_requests; |
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95 } ngx_epoll_conf_t; |
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96 |
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97 |
563 | 98 static ngx_int_t ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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99 static void ngx_epoll_done(ngx_cycle_t *cycle); |
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100 static ngx_int_t ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, |
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101 ngx_uint_t flags); |
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102 static ngx_int_t ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event, |
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103 ngx_uint_t flags); |
499 | 104 static ngx_int_t ngx_epoll_add_connection(ngx_connection_t *c); |
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105 static ngx_int_t ngx_epoll_del_connection(ngx_connection_t *c, |
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106 ngx_uint_t flags); |
563 | 107 static ngx_int_t ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
108 ngx_uint_t flags); | |
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109 |
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110 #if (NGX_HAVE_FILE_AIO) |
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111 static void ngx_epoll_eventfd_handler(ngx_event_t *ev); |
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112 #endif |
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113 |
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114 static void *ngx_epoll_create_conf(ngx_cycle_t *cycle); |
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115 static char *ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf); |
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116 |
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117 static int ep = -1; |
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118 static struct epoll_event *event_list; |
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119 static ngx_uint_t nevents; |
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120 |
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121 #if (NGX_HAVE_FILE_AIO) |
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122 |
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123 int ngx_eventfd = -1; |
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124 aio_context_t ngx_aio_ctx = 0; |
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125 |
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126 static ngx_event_t ngx_eventfd_event; |
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127 static ngx_connection_t ngx_eventfd_conn; |
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128 |
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129 #endif |
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130 |
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131 static ngx_str_t epoll_name = ngx_string("epoll"); |
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132 |
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133 static ngx_command_t ngx_epoll_commands[] = { |
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134 |
499 | 135 { ngx_string("epoll_events"), |
136 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
137 ngx_conf_set_num_slot, | |
138 0, | |
139 offsetof(ngx_epoll_conf_t, events), | |
140 NULL }, | |
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141 |
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142 { ngx_string("worker_aio_requests"), |
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143 NGX_EVENT_CONF|NGX_CONF_TAKE1, |
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144 ngx_conf_set_num_slot, |
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145 0, |
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146 offsetof(ngx_epoll_conf_t, aio_requests), |
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147 NULL }, |
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148 |
499 | 149 ngx_null_command |
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150 }; |
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151 |
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152 |
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153 ngx_event_module_t ngx_epoll_module_ctx = { |
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154 &epoll_name, |
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155 ngx_epoll_create_conf, /* create configuration */ |
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156 ngx_epoll_init_conf, /* init configuration */ |
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157 |
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158 { |
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159 ngx_epoll_add_event, /* add an event */ |
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160 ngx_epoll_del_event, /* delete an event */ |
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161 ngx_epoll_add_event, /* enable an event */ |
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162 ngx_epoll_del_event, /* disable an event */ |
381
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163 ngx_epoll_add_connection, /* add an connection */ |
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164 ngx_epoll_del_connection, /* delete an connection */ |
380
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165 NULL, /* process the changes */ |
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166 ngx_epoll_process_events, /* process the events */ |
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167 ngx_epoll_init, /* init the events */ |
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168 ngx_epoll_done, /* done the events */ |
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169 } |
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170 }; |
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171 |
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172 ngx_module_t ngx_epoll_module = { |
509 | 173 NGX_MODULE_V1, |
245
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174 &ngx_epoll_module_ctx, /* module context */ |
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175 ngx_epoll_commands, /* module directives */ |
381
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176 NGX_EVENT_MODULE, /* module type */ |
541 | 177 NULL, /* init master */ |
381
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178 NULL, /* init module */ |
541 | 179 NULL, /* init process */ |
180 NULL, /* init thread */ | |
181 NULL, /* exit thread */ | |
182 NULL, /* exit process */ | |
183 NULL, /* exit master */ | |
184 NGX_MODULE_V1_PADDING | |
245
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185 }; |
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186 |
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187 |
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188 #if (NGX_HAVE_FILE_AIO) |
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189 |
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190 /* |
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191 * We call io_setup(), io_destroy() io_submit(), and io_getevents() directly |
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192 * as syscalls instead of libaio usage, because the library header file |
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193 * supports eventfd() since 0.3.107 version only. |
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194 * |
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195 * Also we do not use eventfd() in glibc, because glibc supports it |
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196 * since 2.8 version and glibc maps two syscalls eventfd() and eventfd2() |
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197 * into single eventfd() function with different number of parameters. |
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198 */ |
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199 |
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200 static int |
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201 io_setup(u_int nr_reqs, aio_context_t *ctx) |
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202 { |
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203 return syscall(SYS_io_setup, nr_reqs, ctx); |
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204 } |
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205 |
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206 |
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207 static int |
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208 io_destroy(aio_context_t ctx) |
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209 { |
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210 return syscall(SYS_io_destroy, ctx); |
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211 } |
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212 |
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213 |
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214 static int |
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215 io_getevents(aio_context_t ctx, long min_nr, long nr, struct io_event *events, |
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216 struct timespec *tmo) |
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217 { |
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218 return syscall(SYS_io_getevents, ctx, min_nr, nr, events, tmo); |
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219 } |
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220 |
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221 |
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222 static void |
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223 ngx_epoll_aio_init(ngx_cycle_t *cycle, ngx_epoll_conf_t *epcf) |
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224 { |
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225 int n; |
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226 struct epoll_event ee; |
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227 |
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228 ngx_eventfd = syscall(SYS_eventfd, 0); |
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229 |
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230 if (ngx_eventfd == -1) { |
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231 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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232 "eventfd() failed"); |
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233 ngx_file_aio = 0; |
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234 return; |
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235 } |
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236 |
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237 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
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238 "eventfd: %d", ngx_eventfd); |
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239 |
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240 n = 1; |
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241 |
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242 if (ioctl(ngx_eventfd, FIONBIO, &n) == -1) { |
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243 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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244 "ioctl(eventfd, FIONBIO) failed"); |
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245 goto failed; |
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246 } |
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247 |
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248 if (io_setup(epcf->aio_requests, &ngx_aio_ctx) == -1) { |
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249 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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250 "io_setup() failed"); |
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251 goto failed; |
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252 } |
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253 |
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254 ngx_eventfd_event.data = &ngx_eventfd_conn; |
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255 ngx_eventfd_event.handler = ngx_epoll_eventfd_handler; |
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256 ngx_eventfd_event.log = cycle->log; |
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257 ngx_eventfd_event.active = 1; |
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258 ngx_eventfd_conn.fd = ngx_eventfd; |
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259 ngx_eventfd_conn.read = &ngx_eventfd_event; |
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260 ngx_eventfd_conn.log = cycle->log; |
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261 |
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262 ee.events = EPOLLIN|EPOLLET; |
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263 ee.data.ptr = &ngx_eventfd_conn; |
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264 |
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265 if (epoll_ctl(ep, EPOLL_CTL_ADD, ngx_eventfd, &ee) != -1) { |
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266 return; |
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267 } |
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268 |
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269 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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270 "epoll_ctl(EPOLL_CTL_ADD, eventfd) failed"); |
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271 |
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272 if (io_destroy(ngx_aio_ctx) == -1) { |
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273 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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274 "io_destroy() failed"); |
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275 } |
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276 |
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277 failed: |
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278 |
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279 if (close(ngx_eventfd) == -1) { |
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280 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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281 "eventfd close() failed"); |
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282 } |
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283 |
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284 ngx_eventfd = -1; |
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285 ngx_aio_ctx = 0; |
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286 ngx_file_aio = 0; |
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287 } |
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288 |
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289 #endif |
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290 |
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291 |
499 | 292 static ngx_int_t |
563 | 293 ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
245
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294 { |
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295 ngx_epoll_conf_t *epcf; |
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296 |
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297 epcf = ngx_event_get_conf(cycle->conf_ctx, ngx_epoll_module); |
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298 |
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299 if (ep == -1) { |
2062
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prepare to allow various number of connections in child processes
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300 ep = epoll_create(cycle->connection_n / 2); |
245
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301 |
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302 if (ep == -1) { |
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303 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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304 "epoll_create() failed"); |
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305 return NGX_ERROR; |
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306 } |
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307 |
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308 #if (NGX_HAVE_FILE_AIO) |
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309 |
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310 ngx_epoll_aio_init(cycle, epcf); |
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311 |
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312 #endif |
245
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313 } |
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314 |
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315 if (nevents < epcf->events) { |
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316 if (event_list) { |
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317 ngx_free(event_list); |
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318 } |
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319 |
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320 event_list = ngx_alloc(sizeof(struct epoll_event) * epcf->events, |
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321 cycle->log); |
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322 if (event_list == NULL) { |
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323 return NGX_ERROR; |
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324 } |
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325 } |
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326 |
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327 nevents = epcf->events; |
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328 |
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329 ngx_io = ngx_os_io; |
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330 |
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331 ngx_event_actions = ngx_epoll_module_ctx.actions; |
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332 |
469 | 333 #if (NGX_HAVE_CLEAR_EVENT) |
306
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334 ngx_event_flags = NGX_USE_CLEAR_EVENT |
259
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335 #else |
306
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336 ngx_event_flags = NGX_USE_LEVEL_EVENT |
259
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337 #endif |
455 | 338 |NGX_USE_GREEDY_EVENT |
381
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339 |NGX_USE_EPOLL_EVENT; |
245
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340 |
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341 return NGX_OK; |
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342 } |
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343 |
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344 |
499 | 345 static void |
346 ngx_epoll_done(ngx_cycle_t *cycle) | |
245
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347 { |
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348 if (close(ep) == -1) { |
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349 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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350 "epoll close() failed"); |
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351 } |
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352 |
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353 ep = -1; |
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354 |
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355 #if (NGX_HAVE_FILE_AIO) |
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356 |
4130
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357 if (ngx_eventfd != -1) { |
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358 |
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359 if (io_destroy(ngx_aio_ctx) == -1) { |
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360 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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361 "io_destroy() failed"); |
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362 } |
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363 |
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364 if (close(ngx_eventfd) == -1) { |
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365 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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366 "eventfd close() failed"); |
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367 } |
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368 |
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369 ngx_eventfd = -1; |
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370 } |
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371 |
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372 ngx_aio_ctx = 0; |
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373 |
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374 #endif |
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375 |
245
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376 ngx_free(event_list); |
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377 |
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nginx-0.0.1-2004-01-30-00:45:01 import
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378 event_list = NULL; |
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nginx-0.0.1-2004-01-30-00:45:01 import
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379 nevents = 0; |
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nginx-0.0.1-2004-01-30-00:45:01 import
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380 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
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381 |
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nginx-0.0.1-2004-01-30-00:45:01 import
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382 |
499 | 383 static ngx_int_t |
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384 ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
246
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nginx-0.0.1-2004-01-30-20:39:00 import
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385 { |
483 | 386 int op; |
387 uint32_t events, prev; | |
259
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nginx-0.0.2-2004-02-12-23:57:10 import
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388 ngx_event_t *e; |
d30f2c39caae
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389 ngx_connection_t *c; |
258
733dffa1fe97
nginx-0.0.2-2004-02-11-10:19:26 import
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390 struct epoll_event ee; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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diff
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391 |
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nginx-0.0.1-2004-01-30-20:39:00 import
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392 c = ev->data; |
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nginx-0.0.1-2004-01-30-20:39:00 import
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393 |
483 | 394 events = (uint32_t) event; |
395 | |
246
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396 if (event == NGX_READ_EVENT) { |
259
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nginx-0.0.2-2004-02-12-23:57:10 import
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397 e = c->write; |
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nginx-0.0.2-2004-02-12-23:57:10 import
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398 prev = EPOLLOUT; |
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parents:
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399 #if (NGX_READ_EVENT != EPOLLIN) |
483 | 400 events = EPOLLIN; |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
256
diff
changeset
|
401 #endif |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
256
diff
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|
402 |
259
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nginx-0.0.2-2004-02-12-23:57:10 import
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403 } else { |
d30f2c39caae
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|
404 e = c->read; |
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nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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405 prev = EPOLLIN; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
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406 #if (NGX_WRITE_EVENT != EPOLLOUT) |
483 | 407 events = EPOLLOUT; |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
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|
408 #endif |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
409 } |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
410 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
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|
411 if (e->active) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
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|
412 op = EPOLL_CTL_MOD; |
483 | 413 events |= prev; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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245
diff
changeset
|
414 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
415 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
416 op = EPOLL_CTL_ADD; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
417 } |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
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418 |
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changeset
|
419 ee.events = events | (uint32_t) flags; |
581 | 420 ee.data.ptr = (void *) ((uintptr_t) c | ev->instance); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
421 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
422 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 423 "epoll add 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
|
424 c->fd, op, ee.events); |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
425 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
426 if (epoll_ctl(ep, op, c->fd, &ee) == -1) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
427 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
428 "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
|
429 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
430 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
431 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
432 ev->active = 1; |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
433 #if 0 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
434 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
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|
435 #endif |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
436 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
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|
437 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
438 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
439 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
440 |
499 | 441 static ngx_int_t |
1354
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make 64-bit ngx_int_t on 64-bit platforms
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663
diff
changeset
|
442 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
|
443 { |
483 | 444 int op; |
445 uint32_t prev; | |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
changeset
|
446 ngx_event_t *e; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
447 ngx_connection_t *c; |
258
733dffa1fe97
nginx-0.0.2-2004-02-11-10:19:26 import
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parents:
257
diff
changeset
|
448 struct epoll_event ee; |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
449 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
450 /* |
483 | 451 * when the file descriptor is closed, the epoll automatically deletes |
4572
67653855682e
Fixed spelling in multiline C comments.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
452 * it from its queue, so we do not need to delete explicitly the event |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
453 * before the closing the file descriptor |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
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|
454 */ |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
455 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
456 if (flags & NGX_CLOSE_EVENT) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
457 ev->active = 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
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|
458 return NGX_OK; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
459 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
460 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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245
diff
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|
461 c = ev->data; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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245
diff
changeset
|
462 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
changeset
|
463 if (event == NGX_READ_EVENT) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
464 e = c->write; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
465 prev = EPOLLOUT; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
466 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
467 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
468 e = c->read; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
469 prev = EPOLLIN; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
470 } |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
471 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
472 if (e->active) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
473 op = EPOLL_CTL_MOD; |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
474 ee.events = prev | (uint32_t) flags; |
581 | 475 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
|
476 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
477 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
478 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
|
479 ee.events = 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
480 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
|
481 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
482 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
483 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 484 "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
|
485 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
|
486 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
487 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
|
488 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
|
489 "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
|
490 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
491 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
492 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
493 ev->active = 0; |
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
494 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
495 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
496 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
497 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
498 |
499 | 499 static ngx_int_t |
500 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
|
501 { |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
502 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
|
503 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
504 ee.events = EPOLLIN|EPOLLOUT|EPOLLET; |
581 | 505 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
|
506 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
507 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 508 "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
|
509 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
510 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
|
511 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
|
512 "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
|
513 return NGX_ERROR; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
514 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
515 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
516 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
|
517 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
|
518 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
519 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
520 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
521 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
522 |
499 | 523 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
|
524 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
|
525 { |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
526 int op; |
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
527 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
|
528 |
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 * when the file descriptor is closed the epoll automatically deletes |
4572
67653855682e
Fixed spelling in multiline C comments.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
531 * it from its queue so we do not need to delete explicitly the event |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
532 * 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
|
533 */ |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
534 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
535 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
|
536 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
|
537 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
|
538 return NGX_OK; |
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 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
541 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
|
542 "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
|
543 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
544 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
|
545 ee.events = 0; |
581 | 546 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
|
547 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
548 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
|
549 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
|
550 "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
diff
changeset
|
551 return NGX_ERROR; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
552 } |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
553 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
554 c->read->active = 0; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
555 c->write->active = 0; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
556 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
557 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
558 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
559 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
560 |
499 | 561 static ngx_int_t |
563 | 562 ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, 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
|
563 { |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
564 int events; |
483 | 565 uint32_t revents; |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
566 ngx_int_t instance, i; |
563 | 567 ngx_uint_t level; |
309
2e899477243a
nginx-0.0.3-2004-04-09-20:03:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
568 ngx_err_t err; |
563 | 569 ngx_event_t *rev, *wev, **queue; |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
570 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
|
571 |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
572 /* NGX_TIMER_INFINITE == INFTIM */ |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
573 |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
259
diff
changeset
|
574 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 575 "epoll timer: %M", timer); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
576 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
577 events = epoll_wait(ep, event_list, (int) nevents, timer); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
578 |
3043 | 579 err = (events == -1) ? ngx_errno : 0; |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
580 |
3473
0299cf5856fc
do not update time in the timer signal handler,
Igor Sysoev <igor@sysoev.ru>
parents:
3052
diff
changeset
|
581 if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) { |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
582 ngx_time_update(); |
563 | 583 } |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
584 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
585 if (err) { |
563 | 586 if (err == NGX_EINTR) { |
587 | |
588 if (ngx_event_timer_alarm) { | |
589 ngx_event_timer_alarm = 0; | |
590 return NGX_OK; | |
591 } | |
577 | 592 |
563 | 593 level = NGX_LOG_INFO; |
577 | 594 |
595 } else { | |
563 | 596 level = NGX_LOG_ALERT; |
597 } | |
598 | |
599 ngx_log_error(level, cycle->log, err, "epoll_wait() failed"); | |
245
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|
600 return NGX_ERROR; |
e6c005b66b3a
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parents:
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|
601 } |
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parents:
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|
602 |
563 | 603 if (events == 0) { |
567 | 604 if (timer != NGX_TIMER_INFINITE) { |
605 return NGX_OK; | |
606 } | |
607 | |
608 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
609 "epoll_wait() returned no events without timeout"); | |
610 return NGX_ERROR; | |
563 | 611 } |
381
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612 |
563 | 613 ngx_mutex_lock(ngx_posted_events_mutex); |
306
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305
diff
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|
614 |
245
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parents:
diff
changeset
|
615 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
|
616 c = event_list[i].data.ptr; |
e6c005b66b3a
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parents:
diff
changeset
|
617 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
618 instance = (uintptr_t) c & 1; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
diff
changeset
|
619 c = (ngx_connection_t *) ((uintptr_t) c & (uintptr_t) ~1); |
e6c005b66b3a
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parents:
diff
changeset
|
620 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
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parents:
380
diff
changeset
|
621 rev = c->read; |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
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parents:
259
diff
changeset
|
622 |
381
02a511569afb
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380
diff
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|
623 if (c->fd == -1 || rev->instance != instance) { |
245
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parents:
diff
changeset
|
624 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
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parents:
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|
625 /* |
247
008276b9e061
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246
diff
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|
626 * the stale event from a file descriptor |
245
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parents:
diff
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|
627 * 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
|
628 */ |
e6c005b66b3a
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parents:
diff
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|
629 |
312
f5431a4bbc7d
nginx-0.0.3-2004-04-13-09:27:03 import
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parents:
311
diff
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|
630 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 631 "epoll: stale event %p", c); |
245
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parents:
diff
changeset
|
632 continue; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
633 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
634 |
483 | 635 revents = event_list[i].events; |
636 | |
3902
159b58f9c0bd
fix building by gcc 4.6 without --with-debug
Igor Sysoev <igor@sysoev.ru>
parents:
3475
diff
changeset
|
637 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 638 "epoll: fd:%d ev:%04XD d:%p", |
577 | 639 c->fd, revents, event_list[i].data.ptr); |
311
11ff50a35d6d
nginx-0.0.3-2004-04-12-20:38:09 import
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parents:
309
diff
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|
640 |
483 | 641 if (revents & (EPOLLERR|EPOLLHUP)) { |
3902
159b58f9c0bd
fix building by gcc 4.6 without --with-debug
Igor Sysoev <igor@sysoev.ru>
parents:
3475
diff
changeset
|
642 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 643 "epoll_wait() error on fd:%d ev:%04XD", |
483 | 644 c->fd, revents); |
645 } | |
646 | |
663 | 647 #if 0 |
483 | 648 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
|
649 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
483 | 650 "strange epoll_wait() events fd:%d ev:%04XD", |
651 c->fd, revents); | |
247
008276b9e061
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parents:
246
diff
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|
652 } |
663 | 653 #endif |
245
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parents:
diff
changeset
|
654 |
483 | 655 if ((revents & (EPOLLERR|EPOLLHUP)) |
656 && (revents & (EPOLLIN|EPOLLOUT)) == 0) | |
657 { | |
658 /* | |
659 * if the error events were returned without EPOLLIN or EPOLLOUT, | |
660 * then add these flags to handle the events at least in one | |
661 * active handler | |
662 */ | |
663 | |
664 revents |= EPOLLIN|EPOLLOUT; | |
247
008276b9e061
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246
diff
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|
665 } |
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246
diff
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|
666 |
563 | 667 if ((revents & EPOLLIN) && rev->active) { |
668 | |
669 if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { | |
670 rev->posted_ready = 1; | |
671 | |
672 } else { | |
673 rev->ready = 1; | |
674 } | |
675 | |
676 if (flags & NGX_POST_EVENTS) { | |
677 queue = (ngx_event_t **) (rev->accept ? | |
678 &ngx_posted_accept_events : &ngx_posted_events); | |
679 | |
680 ngx_locked_post_event(rev, queue); | |
681 | |
682 } else { | |
683 rev->handler(rev); | |
684 } | |
685 } | |
686 | |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
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parents:
380
diff
changeset
|
687 wev = c->write; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
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parents:
380
diff
changeset
|
688 |
4319
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
689 if ((revents & EPOLLOUT) && wev->active) { |
4305
f68047884e83
Protection from stale write events in epoll.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4134
diff
changeset
|
690 |
4319
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
691 if (c->fd == -1 || wev->instance != instance) { |
4305
f68047884e83
Protection from stale write events in epoll.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4134
diff
changeset
|
692 |
4319
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
693 /* |
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
694 * the stale event from a file descriptor |
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
695 * that was just closed in this iteration |
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
696 */ |
4305
f68047884e83
Protection from stale write events in epoll.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4134
diff
changeset
|
697 |
4319
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
698 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
699 "epoll: stale event %p", c); |
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
700 continue; |
f40541f7afb5
Fixed AIO on Linux, broken in r4306.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4305
diff
changeset
|
701 } |
483 | 702 |
563 | 703 if (flags & NGX_POST_THREAD_EVENTS) { |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
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parents:
380
diff
changeset
|
704 wev->posted_ready = 1; |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
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parents:
305
diff
changeset
|
705 |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
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parents:
305
diff
changeset
|
706 } else { |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
707 wev->ready = 1; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
708 } |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
709 |
563 | 710 if (flags & NGX_POST_EVENTS) { |
711 ngx_locked_post_event(wev, &ngx_posted_events); | |
306
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parents:
305
diff
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|
712 |
563 | 713 } else { |
714 wev->handler(wev); | |
306
6b91bfbc4123
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parents:
305
diff
changeset
|
715 } |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
716 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
717 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
718 |
563 | 719 ngx_mutex_unlock(ngx_posted_events_mutex); |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
720 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
721 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
722 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
723 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
724 |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
725 #if (NGX_HAVE_FILE_AIO) |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
726 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
727 static void |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
728 ngx_epoll_eventfd_handler(ngx_event_t *ev) |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
729 { |
4129
6903dac6ad19
Fixing Linux AIO syscalls return value handling:
Igor Sysoev <igor@sysoev.ru>
parents:
3902
diff
changeset
|
730 int n, events; |
6903dac6ad19
Fixing Linux AIO syscalls return value handling:
Igor Sysoev <igor@sysoev.ru>
parents:
3902
diff
changeset
|
731 long i; |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
732 uint64_t ready; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
733 ngx_err_t err; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
734 ngx_event_t *e; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
735 ngx_event_aio_t *aio; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
736 struct io_event event[64]; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
737 struct timespec ts; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
738 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
739 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
|
740 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
741 n = read(ngx_eventfd, &ready, 8); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
742 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
743 err = ngx_errno; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
744 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
745 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, "eventfd: %d", n); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
746 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
747 if (n != 8) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
748 if (n == -1) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
749 if (err == NGX_EAGAIN) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
750 return; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
751 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
752 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
753 ngx_log_error(NGX_LOG_ALERT, ev->log, err, "read(eventfd) failed"); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
754 return; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
755 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
756 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
757 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
758 "read(eventfd) returned only %d bytes", n); |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
759 return; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
760 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
761 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
762 ts.tv_sec = 0; |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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763 ts.tv_nsec = 0; |
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764 |
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765 while (ready) { |
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766 |
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767 events = io_getevents(ngx_aio_ctx, 1, 64, event, &ts); |
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768 |
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769 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
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770 "io_getevents: %l", events); |
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771 |
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772 if (events > 0) { |
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773 ready -= events; |
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774 |
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775 for (i = 0; i < events; i++) { |
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776 |
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777 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
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778 "io_event: %uXL %uXL %L %L", |
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779 event[i].data, event[i].obj, |
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780 event[i].res, event[i].res2); |
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781 |
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782 e = (ngx_event_t *) (uintptr_t) event[i].data; |
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783 |
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784 e->complete = 1; |
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785 e->active = 0; |
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786 e->ready = 1; |
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787 |
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788 aio = e->data; |
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789 aio->res = event[i].res; |
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790 |
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791 ngx_post_event(e, &ngx_posted_events); |
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792 } |
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793 |
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794 continue; |
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795 } |
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796 |
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797 if (events == 0) { |
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798 return; |
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799 } |
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800 |
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801 /* events == -1 */ |
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802 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
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803 "io_getevents() failed"); |
3052
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804 return; |
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805 } |
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806 } |
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807 |
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808 #endif |
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809 |
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810 |
499 | 811 static void * |
812 ngx_epoll_create_conf(ngx_cycle_t *cycle) | |
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813 { |
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814 ngx_epoll_conf_t *epcf; |
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815 |
501 | 816 epcf = ngx_palloc(cycle->pool, sizeof(ngx_epoll_conf_t)); |
817 if (epcf == NULL) { | |
2912
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diff
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|
818 return NULL; |
501 | 819 } |
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820 |
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821 epcf->events = NGX_CONF_UNSET; |
4134
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822 epcf->aio_requests = NGX_CONF_UNSET; |
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823 |
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824 return epcf; |
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825 } |
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|
826 |
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827 |
499 | 828 static char * |
829 ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf) | |
245
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|
830 { |
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831 ngx_epoll_conf_t *epcf = conf; |
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|
832 |
663 | 833 ngx_conf_init_uint_value(epcf->events, 512); |
4134
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834 ngx_conf_init_uint_value(epcf->aio_requests, 32); |
245
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|
835 |
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|
836 return NGX_CONF_OK; |
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837 } |