Mercurial > hg > nginx
annotate src/event/modules/ngx_epoll_module.c @ 4130:04751572f900
Fixing Linux AIO initiatialization: AIO operations are disabled if kernel
does not support them. Previously worker just exited.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 16 Sep 2011 13:41:52 +0000 |
parents | 6903dac6ad19 |
children | a3203c4521c6 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 |
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469 | 12 #if (NGX_TEST_BUILD_EPOLL) |
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13 |
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14 /* epoll declarations */ |
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15 |
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16 #define EPOLLIN 0x001 |
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17 #define EPOLLPRI 0x002 |
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18 #define EPOLLOUT 0x004 |
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19 #define EPOLLRDNORM 0x040 |
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20 #define EPOLLRDBAND 0x080 |
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21 #define EPOLLWRNORM 0x100 |
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22 #define EPOLLWRBAND 0x200 |
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23 #define EPOLLMSG 0x400 |
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24 #define EPOLLERR 0x008 |
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25 #define EPOLLHUP 0x010 |
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26 |
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27 #define EPOLLET 0x80000000 |
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28 #define EPOLLONESHOT 0x40000000 |
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29 |
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30 #define EPOLL_CTL_ADD 1 |
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31 #define EPOLL_CTL_DEL 2 |
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32 #define EPOLL_CTL_MOD 3 |
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33 |
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34 typedef union epoll_data { |
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35 void *ptr; |
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36 int fd; |
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37 uint32_t u32; |
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38 uint64_t u64; |
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39 } epoll_data_t; |
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40 |
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41 struct epoll_event { |
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42 uint32_t events; |
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43 epoll_data_t data; |
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44 }; |
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45 |
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46 int epoll_create(int size) |
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47 { |
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48 return -1; |
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49 } |
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50 |
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51 int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event) |
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52 { |
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53 return -1; |
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54 } |
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55 |
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56 int epoll_wait(int epfd, struct epoll_event *events, int nevents, int timeout) |
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57 { |
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58 return -1; |
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59 } |
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60 |
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61 #if (NGX_HAVE_FILE_AIO) |
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62 |
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63 #define SYS_io_setup 245 |
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64 #define SYS_io_destroy 246 |
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65 #define SYS_io_getevents 247 |
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66 #define SYS_eventfd 323 |
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67 |
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68 typedef u_int aio_context_t; |
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69 |
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70 struct io_event { |
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71 uint64_t data; /* the data field from the iocb */ |
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72 uint64_t obj; /* what iocb this event came from */ |
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73 int64_t res; /* result code for this event */ |
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74 int64_t res2; /* secondary result */ |
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75 }; |
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76 |
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77 |
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78 int eventfd(u_int initval) |
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79 { |
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80 return -1; |
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81 } |
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82 |
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83 #endif |
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84 #endif |
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85 |
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86 |
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87 typedef struct { |
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88 ngx_uint_t events; |
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89 } ngx_epoll_conf_t; |
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90 |
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91 |
563 | 92 static ngx_int_t ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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93 static void ngx_epoll_done(ngx_cycle_t *cycle); |
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94 static ngx_int_t ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, |
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95 ngx_uint_t flags); |
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96 static ngx_int_t ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event, |
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97 ngx_uint_t flags); |
499 | 98 static ngx_int_t ngx_epoll_add_connection(ngx_connection_t *c); |
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99 static ngx_int_t ngx_epoll_del_connection(ngx_connection_t *c, |
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100 ngx_uint_t flags); |
563 | 101 static ngx_int_t ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
102 ngx_uint_t flags); | |
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103 |
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104 #if (NGX_HAVE_FILE_AIO) |
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105 static void ngx_epoll_eventfd_handler(ngx_event_t *ev); |
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106 #endif |
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107 |
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108 static void *ngx_epoll_create_conf(ngx_cycle_t *cycle); |
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109 static char *ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf); |
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110 |
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111 static int ep = -1; |
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112 static struct epoll_event *event_list; |
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113 static ngx_uint_t nevents; |
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114 |
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115 #if (NGX_HAVE_FILE_AIO) |
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116 |
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117 int ngx_eventfd = -1; |
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118 aio_context_t ngx_aio_ctx = 0; |
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119 |
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120 static ngx_event_t ngx_eventfd_event; |
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121 static ngx_connection_t ngx_eventfd_conn; |
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122 |
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123 #endif |
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124 |
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125 static ngx_str_t epoll_name = ngx_string("epoll"); |
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126 |
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127 static ngx_command_t ngx_epoll_commands[] = { |
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128 |
499 | 129 { ngx_string("epoll_events"), |
130 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
131 ngx_conf_set_num_slot, | |
132 0, | |
133 offsetof(ngx_epoll_conf_t, events), | |
134 NULL }, | |
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135 |
499 | 136 ngx_null_command |
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137 }; |
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138 |
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139 |
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140 ngx_event_module_t ngx_epoll_module_ctx = { |
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141 &epoll_name, |
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142 ngx_epoll_create_conf, /* create configuration */ |
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143 ngx_epoll_init_conf, /* init configuration */ |
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144 |
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145 { |
246
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146 ngx_epoll_add_event, /* add an event */ |
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147 ngx_epoll_del_event, /* delete an event */ |
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148 ngx_epoll_add_event, /* enable an event */ |
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149 ngx_epoll_del_event, /* disable an event */ |
381
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150 ngx_epoll_add_connection, /* add an connection */ |
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151 ngx_epoll_del_connection, /* delete an connection */ |
380
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152 NULL, /* process the changes */ |
245
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153 ngx_epoll_process_events, /* process the events */ |
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154 ngx_epoll_init, /* init the events */ |
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155 ngx_epoll_done, /* done the events */ |
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156 } |
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157 }; |
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158 |
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159 ngx_module_t ngx_epoll_module = { |
509 | 160 NGX_MODULE_V1, |
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161 &ngx_epoll_module_ctx, /* module context */ |
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162 ngx_epoll_commands, /* module directives */ |
381
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163 NGX_EVENT_MODULE, /* module type */ |
541 | 164 NULL, /* init master */ |
381
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165 NULL, /* init module */ |
541 | 166 NULL, /* init process */ |
167 NULL, /* init thread */ | |
168 NULL, /* exit thread */ | |
169 NULL, /* exit process */ | |
170 NULL, /* exit master */ | |
171 NGX_MODULE_V1_PADDING | |
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172 }; |
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173 |
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174 |
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175 #if (NGX_HAVE_FILE_AIO) |
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176 |
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177 /* |
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178 * We call io_setup(), io_destroy() io_submit(), and io_getevents() directly |
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179 * as syscalls instead of libaio usage, because the library header file |
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180 * supports eventfd() since 0.3.107 version only. |
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181 * |
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182 * Also we do not use eventfd() in glibc, because glibc supports it |
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183 * since 2.8 version and glibc maps two syscalls eventfd() and eventfd2() |
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184 * into single eventfd() function with different number of parameters. |
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185 */ |
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186 |
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187 static int |
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188 io_setup(u_int nr_reqs, aio_context_t *ctx) |
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189 { |
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190 return syscall(SYS_io_setup, nr_reqs, ctx); |
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191 } |
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192 |
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193 |
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194 static int |
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195 io_destroy(aio_context_t ctx) |
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196 { |
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197 return syscall(SYS_io_destroy, ctx); |
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198 } |
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199 |
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200 |
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201 static int |
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202 io_getevents(aio_context_t ctx, long min_nr, long nr, struct io_event *events, |
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203 struct timespec *tmo) |
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204 { |
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205 return syscall(SYS_io_getevents, ctx, min_nr, nr, events, tmo); |
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206 } |
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207 |
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208 |
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209 static void |
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210 ngx_epoll_aio_init(ngx_cycle_t *cycle) |
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211 { |
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212 int n; |
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213 struct epoll_event ee; |
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214 |
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215 ngx_eventfd = syscall(SYS_eventfd, 0); |
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216 |
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217 if (ngx_eventfd == -1) { |
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218 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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219 "eventfd() failed"); |
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220 ngx_file_aio = 0; |
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221 return; |
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222 } |
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223 |
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224 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
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225 "eventfd: %d", ngx_eventfd); |
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226 |
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227 n = 1; |
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228 |
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229 if (ioctl(ngx_eventfd, FIONBIO, &n) == -1) { |
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230 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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231 "ioctl(eventfd, FIONBIO) failed"); |
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232 goto failed; |
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233 } |
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234 |
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235 if (io_setup(1024, &ngx_aio_ctx) == -1) { |
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236 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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237 "io_setup() failed"); |
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238 goto failed; |
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239 } |
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240 |
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241 ngx_eventfd_event.data = &ngx_eventfd_conn; |
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242 ngx_eventfd_event.handler = ngx_epoll_eventfd_handler; |
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243 ngx_eventfd_event.log = cycle->log; |
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244 ngx_eventfd_event.active = 1; |
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245 ngx_eventfd_conn.fd = ngx_eventfd; |
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246 ngx_eventfd_conn.read = &ngx_eventfd_event; |
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247 ngx_eventfd_conn.log = cycle->log; |
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248 |
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249 ee.events = EPOLLIN|EPOLLET; |
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250 ee.data.ptr = &ngx_eventfd_conn; |
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251 |
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252 if (epoll_ctl(ep, EPOLL_CTL_ADD, ngx_eventfd, &ee) != -1) { |
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253 return; |
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254 } |
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255 |
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256 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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257 "epoll_ctl(EPOLL_CTL_ADD, eventfd) failed"); |
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258 |
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259 if (io_destroy(ngx_aio_ctx) == -1) { |
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260 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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261 "io_destroy() failed"); |
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262 } |
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263 |
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264 failed: |
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265 |
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266 if (close(ngx_eventfd) == -1) { |
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267 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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268 "eventfd close() failed"); |
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269 } |
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270 |
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271 ngx_eventfd = -1; |
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272 ngx_aio_ctx = 0; |
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273 ngx_file_aio = 0; |
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274 } |
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275 |
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276 #endif |
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277 |
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278 |
499 | 279 static ngx_int_t |
563 | 280 ngx_epoll_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
245
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281 { |
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282 ngx_epoll_conf_t *epcf; |
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283 |
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284 epcf = ngx_event_get_conf(cycle->conf_ctx, ngx_epoll_module); |
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285 |
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286 if (ep == -1) { |
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287 ep = epoll_create(cycle->connection_n / 2); |
245
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288 |
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289 if (ep == -1) { |
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290 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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291 "epoll_create() failed"); |
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292 return NGX_ERROR; |
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293 } |
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294 |
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295 #if (NGX_HAVE_FILE_AIO) |
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296 |
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297 ngx_epoll_aio_init(cycle); |
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298 |
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299 #endif |
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300 } |
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301 |
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302 if (nevents < epcf->events) { |
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303 if (event_list) { |
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304 ngx_free(event_list); |
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305 } |
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306 |
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307 event_list = ngx_alloc(sizeof(struct epoll_event) * epcf->events, |
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308 cycle->log); |
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309 if (event_list == NULL) { |
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310 return NGX_ERROR; |
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311 } |
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312 } |
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313 |
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314 nevents = epcf->events; |
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315 |
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316 ngx_io = ngx_os_io; |
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317 |
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318 ngx_event_actions = ngx_epoll_module_ctx.actions; |
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319 |
469 | 320 #if (NGX_HAVE_CLEAR_EVENT) |
306
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321 ngx_event_flags = NGX_USE_CLEAR_EVENT |
259
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322 #else |
306
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323 ngx_event_flags = NGX_USE_LEVEL_EVENT |
259
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324 #endif |
455 | 325 |NGX_USE_GREEDY_EVENT |
381
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326 |NGX_USE_EPOLL_EVENT; |
245
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327 |
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328 return NGX_OK; |
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329 } |
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330 |
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331 |
499 | 332 static void |
333 ngx_epoll_done(ngx_cycle_t *cycle) | |
245
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334 { |
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335 if (close(ep) == -1) { |
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336 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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337 "epoll close() failed"); |
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338 } |
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339 |
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340 ep = -1; |
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341 |
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342 #if (NGX_HAVE_FILE_AIO) |
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343 |
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344 if (ngx_eventfd != -1) { |
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345 |
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346 if (io_destroy(ngx_aio_ctx) == -1) { |
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347 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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348 "io_destroy() failed"); |
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349 } |
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350 |
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351 if (close(ngx_eventfd) == -1) { |
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352 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
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353 "eventfd close() failed"); |
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Fixing Linux AIO initiatialization: AIO operations are disabled if kernel
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354 } |
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Fixing Linux AIO initiatialization: AIO operations are disabled if kernel
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355 |
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Fixing Linux AIO initiatialization: AIO operations are disabled if kernel
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356 ngx_eventfd = -1; |
3052
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FreeBSD and Linux AIO support
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357 } |
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FreeBSD and Linux AIO support
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358 |
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FreeBSD and Linux AIO support
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359 ngx_aio_ctx = 0; |
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360 |
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FreeBSD and Linux AIO support
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361 #endif |
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FreeBSD and Linux AIO support
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362 |
245
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363 ngx_free(event_list); |
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364 |
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nginx-0.0.1-2004-01-30-00:45:01 import
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365 event_list = NULL; |
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nginx-0.0.1-2004-01-30-00:45:01 import
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366 nevents = 0; |
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nginx-0.0.1-2004-01-30-00:45:01 import
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367 } |
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nginx-0.0.1-2004-01-30-00:45:01 import
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368 |
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369 |
499 | 370 static ngx_int_t |
1354
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371 ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
246
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372 { |
483 | 373 int op; |
374 uint32_t events, prev; | |
259
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375 ngx_event_t *e; |
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376 ngx_connection_t *c; |
258
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nginx-0.0.2-2004-02-11-10:19:26 import
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377 struct epoll_event ee; |
246
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378 |
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379 c = ev->data; |
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380 |
483 | 381 events = (uint32_t) event; |
382 | |
246
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383 if (event == NGX_READ_EVENT) { |
259
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384 e = c->write; |
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nginx-0.0.2-2004-02-12-23:57:10 import
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385 prev = EPOLLOUT; |
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386 #if (NGX_READ_EVENT != EPOLLIN) |
483 | 387 events = EPOLLIN; |
257
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nginx-0.0.2-2004-02-11-20:08:49 import
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388 #endif |
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nginx-0.0.2-2004-02-11-20:08:49 import
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389 |
259
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390 } else { |
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391 e = c->read; |
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392 prev = EPOLLIN; |
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nginx-0.0.2-2004-02-12-23:57:10 import
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393 #if (NGX_WRITE_EVENT != EPOLLOUT) |
483 | 394 events = EPOLLOUT; |
259
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395 #endif |
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nginx-0.0.2-2004-02-12-23:57:10 import
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396 } |
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nginx-0.0.2-2004-02-12-23:57:10 import
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397 |
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nginx-0.0.2-2004-02-12-23:57:10 import
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398 if (e->active) { |
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nginx-0.0.2-2004-02-12-23:57:10 import
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399 op = EPOLL_CTL_MOD; |
483 | 400 events |= prev; |
246
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nginx-0.0.1-2004-01-30-20:39:00 import
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401 |
259
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402 } else { |
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nginx-0.0.2-2004-02-12-23:57:10 import
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403 op = EPOLL_CTL_ADD; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
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diff
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404 } |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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405 |
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make 64-bit ngx_int_t on 64-bit platforms
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parents:
663
diff
changeset
|
406 ee.events = events | (uint32_t) flags; |
581 | 407 ee.data.ptr = (void *) ((uintptr_t) c | ev->instance); |
246
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nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
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diff
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408 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
409 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 410 "epoll add event: fd:%d op:%d ev:%08XD", |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
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diff
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411 c->fd, op, ee.events); |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
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diff
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|
412 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
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413 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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414 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
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|
415 "epoll_ctl(%d, %d) failed", op, c->fd); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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416 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
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diff
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417 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
changeset
|
418 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
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parents:
246
diff
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|
419 ev->active = 1; |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
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420 #if 0 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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421 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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422 #endif |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
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parents:
246
diff
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|
423 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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424 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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425 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
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diff
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|
426 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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427 |
499 | 428 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
|
429 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
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430 { |
483 | 431 int op; |
432 uint32_t prev; | |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
433 ngx_event_t *e; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
434 ngx_connection_t *c; |
258
733dffa1fe97
nginx-0.0.2-2004-02-11-10:19:26 import
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parents:
257
diff
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|
435 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
|
436 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
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|
437 /* |
483 | 438 * when the file descriptor is closed, the epoll automatically deletes |
439 * 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
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parents:
305
diff
changeset
|
440 * before the closing the file descriptor |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
441 */ |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
442 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
443 if (flags & NGX_CLOSE_EVENT) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
444 ev->active = 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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445 return NGX_OK; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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parents:
258
diff
changeset
|
446 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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245
diff
changeset
|
447 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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|
448 c = ev->data; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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changeset
|
449 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
450 if (event == NGX_READ_EVENT) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
451 e = c->write; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
452 prev = EPOLLOUT; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
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|
453 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
454 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
455 e = c->read; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
456 prev = EPOLLIN; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
457 } |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
458 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
459 if (e->active) { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
460 op = EPOLL_CTL_MOD; |
1354
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parents:
663
diff
changeset
|
461 ee.events = prev | (uint32_t) flags; |
581 | 462 ee.data.ptr = (void *) ((uintptr_t) c | ev->instance); |
246
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463 |
259
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nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
464 } else { |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
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|
465 op = EPOLL_CTL_DEL; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
466 ee.events = 0; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
467 ee.data.ptr = NULL; |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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|
468 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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|
469 |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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258
diff
changeset
|
470 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 471 "epoll del event: fd:%d op:%d ev:%08XD", |
259
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
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diff
changeset
|
472 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
|
473 |
d30f2c39caae
nginx-0.0.2-2004-02-12-23:57:10 import
Igor Sysoev <igor@sysoev.ru>
parents:
258
diff
changeset
|
474 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
|
475 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
|
476 "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
|
477 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
478 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
479 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
480 ev->active = 0; |
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
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 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
483 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
484 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
485 |
499 | 486 static ngx_int_t |
487 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
|
488 { |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
489 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
|
490 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
491 ee.events = EPOLLIN|EPOLLOUT|EPOLLET; |
581 | 492 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
|
493 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
494 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 495 "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
|
496 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
497 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
|
498 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
|
499 "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
|
500 return NGX_ERROR; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
501 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
502 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
503 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
|
504 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
|
505 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
506 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
507 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
508 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
509 |
499 | 510 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
|
511 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
|
512 { |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
513 int op; |
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
514 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
|
515 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
516 /* |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
517 * 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
|
518 * 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
|
519 * 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
|
520 */ |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
521 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
522 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
|
523 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
|
524 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
|
525 return NGX_OK; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
526 } |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
527 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
528 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
|
529 "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
|
530 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
531 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
|
532 ee.events = 0; |
581 | 533 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
|
534 |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
535 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
|
536 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
|
537 "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
|
538 return NGX_ERROR; |
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 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
541 c->read->active = 0; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
542 c->write->active = 0; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
543 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
544 return NGX_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
545 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
546 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
547 |
499 | 548 static ngx_int_t |
563 | 549 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
|
550 { |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
551 int events; |
483 | 552 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
|
553 ngx_int_t instance, i; |
563 | 554 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
|
555 ngx_err_t err; |
563 | 556 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
|
557 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
|
558 |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
559 /* 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
|
560 |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
259
diff
changeset
|
561 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 562 "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
|
563 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
663
diff
changeset
|
564 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
|
565 |
3043 | 566 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
|
567 |
3473
0299cf5856fc
do not update time in the timer signal handler,
Igor Sysoev <igor@sysoev.ru>
parents:
3052
diff
changeset
|
568 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
|
569 ngx_time_update(); |
563 | 570 } |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
571 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
572 if (err) { |
563 | 573 if (err == NGX_EINTR) { |
574 | |
575 if (ngx_event_timer_alarm) { | |
576 ngx_event_timer_alarm = 0; | |
577 return NGX_OK; | |
578 } | |
577 | 579 |
563 | 580 level = NGX_LOG_INFO; |
577 | 581 |
582 } else { | |
563 | 583 level = NGX_LOG_ALERT; |
584 } | |
585 | |
586 ngx_log_error(level, cycle->log, err, "epoll_wait() failed"); | |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
587 return NGX_ERROR; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
588 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
589 |
563 | 590 if (events == 0) { |
567 | 591 if (timer != NGX_TIMER_INFINITE) { |
592 return NGX_OK; | |
593 } | |
594 | |
595 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
596 "epoll_wait() returned no events without timeout"); | |
597 return NGX_ERROR; | |
563 | 598 } |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
599 |
563 | 600 ngx_mutex_lock(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
|
601 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
602 for (i = 0; i < events; i++) { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
603 c = event_list[i].data.ptr; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
604 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
605 instance = (uintptr_t) c & 1; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
606 c = (ngx_connection_t *) ((uintptr_t) c & (uintptr_t) ~1); |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
607 |
381
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608 rev = c->read; |
305
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609 |
381
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610 if (c->fd == -1 || rev->instance != instance) { |
245
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611 |
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612 /* |
247
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613 * the stale event from a file descriptor |
245
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614 * that was just closed in this iteration |
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615 */ |
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616 |
312
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617 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 618 "epoll: stale event %p", c); |
245
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619 continue; |
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620 } |
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621 |
483 | 622 revents = event_list[i].events; |
623 | |
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624 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 625 "epoll: fd:%d ev:%04XD d:%p", |
577 | 626 c->fd, revents, event_list[i].data.ptr); |
311
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627 |
483 | 628 if (revents & (EPOLLERR|EPOLLHUP)) { |
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629 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 630 "epoll_wait() error on fd:%d ev:%04XD", |
483 | 631 c->fd, revents); |
632 } | |
633 | |
663 | 634 #if 0 |
483 | 635 if (revents & ~(EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP)) { |
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636 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
483 | 637 "strange epoll_wait() events fd:%d ev:%04XD", |
638 c->fd, revents); | |
247
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639 } |
663 | 640 #endif |
245
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641 |
483 | 642 if ((revents & (EPOLLERR|EPOLLHUP)) |
643 && (revents & (EPOLLIN|EPOLLOUT)) == 0) | |
644 { | |
645 /* | |
646 * if the error events were returned without EPOLLIN or EPOLLOUT, | |
647 * then add these flags to handle the events at least in one | |
648 * active handler | |
649 */ | |
650 | |
651 revents |= EPOLLIN|EPOLLOUT; | |
247
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652 } |
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653 |
563 | 654 if ((revents & EPOLLIN) && rev->active) { |
655 | |
656 if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { | |
657 rev->posted_ready = 1; | |
658 | |
659 } else { | |
660 rev->ready = 1; | |
661 } | |
662 | |
663 if (flags & NGX_POST_EVENTS) { | |
664 queue = (ngx_event_t **) (rev->accept ? | |
665 &ngx_posted_accept_events : &ngx_posted_events); | |
666 | |
667 ngx_locked_post_event(rev, queue); | |
668 | |
669 } else { | |
670 rev->handler(rev); | |
671 } | |
672 } | |
673 | |
381
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674 wev = c->write; |
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675 |
483 | 676 if ((revents & EPOLLOUT) && wev->active) { |
677 | |
563 | 678 if (flags & NGX_POST_THREAD_EVENTS) { |
381
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679 wev->posted_ready = 1; |
306
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680 |
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681 } else { |
381
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|
682 wev->ready = 1; |
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683 } |
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684 |
563 | 685 if (flags & NGX_POST_EVENTS) { |
686 ngx_locked_post_event(wev, &ngx_posted_events); | |
306
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687 |
563 | 688 } else { |
689 wev->handler(wev); | |
306
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690 } |
245
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691 } |
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692 } |
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693 |
563 | 694 ngx_mutex_unlock(ngx_posted_events_mutex); |
306
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695 |
245
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696 return NGX_OK; |
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|
697 } |
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|
698 |
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699 |
3052
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700 #if (NGX_HAVE_FILE_AIO) |
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701 |
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702 static void |
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703 ngx_epoll_eventfd_handler(ngx_event_t *ev) |
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704 { |
4129
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705 int n, events; |
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706 long i; |
3052
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707 uint64_t ready; |
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708 ngx_err_t err; |
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709 ngx_event_t *e; |
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710 ngx_event_aio_t *aio; |
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711 struct io_event event[64]; |
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712 struct timespec ts; |
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713 |
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714 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "eventfd handler"); |
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715 |
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716 n = read(ngx_eventfd, &ready, 8); |
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717 |
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718 err = ngx_errno; |
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719 |
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720 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, "eventfd: %d", n); |
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721 |
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722 if (n != 8) { |
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|
723 if (n == -1) { |
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724 if (err == NGX_EAGAIN) { |
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725 return; |
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726 } |
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727 |
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728 ngx_log_error(NGX_LOG_ALERT, ev->log, err, "read(eventfd) failed"); |
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729 return; |
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|
730 } |
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731 |
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732 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, |
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733 "read(eventfd) returned only %d bytes", n); |
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|
734 return; |
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735 } |
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736 |
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737 ts.tv_sec = 0; |
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738 ts.tv_nsec = 0; |
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739 |
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740 while (ready) { |
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741 |
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742 events = io_getevents(ngx_aio_ctx, 1, 64, event, &ts); |
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743 |
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744 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
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745 "io_getevents: %l", events); |
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746 |
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747 if (events > 0) { |
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748 ready -= events; |
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749 |
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750 for (i = 0; i < events; i++) { |
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751 |
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752 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
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753 "io_event: %uXL %uXL %L %L", |
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754 event[i].data, event[i].obj, |
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755 event[i].res, event[i].res2); |
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|
756 |
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757 e = (ngx_event_t *) (uintptr_t) event[i].data; |
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758 |
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759 e->complete = 1; |
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760 e->active = 0; |
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761 e->ready = 1; |
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762 |
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763 aio = e->data; |
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764 aio->res = event[i].res; |
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765 |
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766 ngx_post_event(e, &ngx_posted_events); |
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767 } |
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768 |
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|
769 continue; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
770 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
771 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
772 if (events == 0) { |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
773 return; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
774 } |
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FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
775 |
4129
6903dac6ad19
Fixing Linux AIO syscalls return value handling:
Igor Sysoev <igor@sysoev.ru>
parents:
3902
diff
changeset
|
776 /* events == -1 */ |
6903dac6ad19
Fixing Linux AIO syscalls return value handling:
Igor Sysoev <igor@sysoev.ru>
parents:
3902
diff
changeset
|
777 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
6903dac6ad19
Fixing Linux AIO syscalls return value handling:
Igor Sysoev <igor@sysoev.ru>
parents:
3902
diff
changeset
|
778 "io_getevents() failed"); |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
779 return; |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
780 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
781 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
3044
diff
changeset
|
782 |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
783 #endif |
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FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
784 |
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diff
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|
785 |
499 | 786 static void * |
787 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
|
788 { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
789 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
|
790 |
501 | 791 epcf = ngx_palloc(cycle->pool, sizeof(ngx_epoll_conf_t)); |
792 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
|
793 return NULL; |
501 | 794 } |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
795 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
796 epcf->events = NGX_CONF_UNSET; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
797 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
798 return epcf; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
799 } |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
800 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
801 |
499 | 802 static char * |
803 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
|
804 { |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
805 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
|
806 |
663 | 807 ngx_conf_init_uint_value(epcf->events, 512); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
808 |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
809 return NGX_CONF_OK; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
810 } |