Mercurial > hg > nginx
annotate src/core/ngx_connection.h @ 5980:ccad84a174e0
Refactored sendfile() AIO preload.
This reduces layering violation and simplifies the logic of AIO preread, since
it's now triggered by the send chain function itself without falling back to
the copy filter. The context of AIO operation is now stored per file buffer,
which makes it possible to properly handle cases when multiple buffers come
from different locations, each with its own configuration.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Wed, 11 Feb 2015 17:52:15 +0300 |
parents | 3a72b1805c52 |
children | 457ec43dd8d5 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #ifndef _NGX_CONNECTION_H_INCLUDED_ |
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9 #define _NGX_CONNECTION_H_INCLUDED_ |
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12 #include <ngx_config.h> |
92
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13 #include <ngx_core.h> |
103
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14 |
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15 |
543 | 16 typedef struct ngx_listening_s ngx_listening_t; |
17 | |
18 struct ngx_listening_s { | |
19 ngx_socket_t fd; | |
103
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20 |
543 | 21 struct sockaddr *sockaddr; |
22 socklen_t socklen; /* size of sockaddr */ | |
23 size_t addr_text_max_len; | |
24 ngx_str_t addr_text; | |
103
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25 |
543 | 26 int type; |
563 | 27 |
543 | 28 int backlog; |
563 | 29 int rcvbuf; |
30 int sndbuf; | |
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31 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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32 int keepidle; |
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33 int keepintvl; |
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34 int keepcnt; |
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35 #endif |
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36 |
543 | 37 /* handler of accepted connection */ |
547 | 38 ngx_connection_handler_pt handler; |
543 | 39 |
40 void *servers; /* array of ngx_http_in_addr_t, for example */ | |
103
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41 |
543 | 42 ngx_log_t log; |
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43 ngx_log_t *logp; |
103
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44 |
543 | 45 size_t pool_size; |
46 /* should be here because of the AcceptEx() preread */ | |
47 size_t post_accept_buffer_size; | |
48 /* should be here because of the deferred accept */ | |
557 | 49 ngx_msec_t post_accept_timeout; |
543 | 50 |
51 ngx_listening_t *previous; | |
52 ngx_connection_t *connection; | |
103
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53 |
543 | 54 unsigned open:1; |
55 unsigned remain:1; | |
56 unsigned ignore:1; | |
109
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57 |
543 | 58 unsigned bound:1; /* already bound */ |
59 unsigned inherited:1; /* inherited from previous process */ | |
60 unsigned nonblocking_accept:1; | |
563 | 61 unsigned listen:1; |
543 | 62 unsigned nonblocking:1; |
63 unsigned shared:1; /* shared between threads or processes */ | |
64 unsigned addr_ntop:1; | |
523 | 65 |
2562 | 66 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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67 unsigned ipv6only:1; |
2562 | 68 #endif |
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69 unsigned keepalive:2; |
2562 | 70 |
469 | 71 #if (NGX_HAVE_DEFERRED_ACCEPT) |
543 | 72 unsigned deferred_accept:1; |
73 unsigned delete_deferred:1; | |
74 unsigned add_deferred:1; | |
523 | 75 #ifdef SO_ACCEPTFILTER |
543 | 76 char *accept_filter; |
523 | 77 #endif |
103
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78 #endif |
3676 | 79 #if (NGX_HAVE_SETFIB) |
80 int setfib; | |
81 #endif | |
419
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82 |
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83 #if (NGX_HAVE_TCP_FASTOPEN) |
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84 int fastopen; |
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85 #endif |
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86 |
543 | 87 }; |
92
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88 |
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89 |
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90 typedef enum { |
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91 NGX_ERROR_ALERT = 0, |
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92 NGX_ERROR_ERR, |
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93 NGX_ERROR_INFO, |
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94 NGX_ERROR_IGNORE_ECONNRESET, |
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95 NGX_ERROR_IGNORE_EINVAL |
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96 } ngx_connection_log_error_e; |
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97 |
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98 |
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99 typedef enum { |
483 | 100 NGX_TCP_NODELAY_UNSET = 0, |
101 NGX_TCP_NODELAY_SET, | |
102 NGX_TCP_NODELAY_DISABLED | |
103 } ngx_connection_tcp_nodelay_e; | |
104 | |
105 | |
106 typedef enum { | |
344
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107 NGX_TCP_NOPUSH_UNSET = 0, |
483 | 108 NGX_TCP_NOPUSH_SET, |
109 NGX_TCP_NOPUSH_DISABLED | |
344
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110 } ngx_connection_tcp_nopush_e; |
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111 |
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112 |
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113 #define NGX_LOWLEVEL_BUFFERED 0x0f |
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114 #define NGX_SSL_BUFFERED 0x01 |
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115 #define NGX_SPDY_BUFFERED 0x02 |
597 | 116 |
117 | |
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118 struct ngx_connection_s { |
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119 void *data; |
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120 ngx_event_t *read; |
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121 ngx_event_t *write; |
103
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122 |
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123 ngx_socket_t fd; |
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124 |
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125 ngx_recv_pt recv; |
539 | 126 ngx_send_pt send; |
577 | 127 ngx_recv_chain_pt recv_chain; |
396
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128 ngx_send_chain_pt send_chain; |
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129 |
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130 ngx_listening_t *listening; |
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131 |
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132 off_t sent; |
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133 |
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134 ngx_log_t *log; |
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135 |
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136 ngx_pool_t *pool; |
103
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137 |
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138 struct sockaddr *sockaddr; |
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139 socklen_t socklen; |
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140 ngx_str_t addr_text; |
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141 |
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Added server-side support for PROXY protocol v1 (ticket #355).
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142 ngx_str_t proxy_protocol_addr; |
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143 |
577 | 144 #if (NGX_SSL) |
547 | 145 ngx_ssl_connection_t *ssl; |
392
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146 #endif |
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147 |
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148 struct sockaddr *local_sockaddr; |
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149 socklen_t local_socklen; |
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150 |
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151 ngx_buf_t *buffer; |
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152 |
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153 ngx_queue_t queue; |
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154 |
495 | 155 ngx_atomic_uint_t number; |
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156 |
2888 | 157 ngx_uint_t requests; |
158 | |
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159 unsigned buffered:8; |
597 | 160 |
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161 unsigned log_error:3; /* ngx_connection_log_error_e */ |
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162 |
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163 unsigned unexpected_eof:1; |
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164 unsigned timedout:1; |
583 | 165 unsigned error:1; |
166 unsigned destroyed:1; | |
452 | 167 |
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168 unsigned idle:1; |
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169 unsigned reusable:1; |
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170 unsigned close:1; |
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171 |
452 | 172 unsigned sendfile:1; |
173 unsigned sndlowat:1; | |
483 | 174 unsigned tcp_nodelay:2; /* ngx_connection_tcp_nodelay_e */ |
175 unsigned tcp_nopush:2; /* ngx_connection_tcp_nopush_e */ | |
452 | 176 |
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177 unsigned need_last_buf:1; |
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178 |
469 | 179 #if (NGX_HAVE_IOCP) |
396
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180 unsigned accept_context_updated:1; |
103
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181 #endif |
370
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182 |
3065 | 183 #if (NGX_HAVE_AIO_SENDFILE) |
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184 unsigned busy_count:2; |
3065 | 185 #endif |
186 | |
370
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187 #if (NGX_THREADS) |
396
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188 ngx_atomic_t lock; |
370
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189 #endif |
0
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190 }; |
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191 |
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192 |
2806 | 193 ngx_listening_t *ngx_create_listening(ngx_conf_t *cf, void *sockaddr, |
194 socklen_t socklen); | |
219
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195 ngx_int_t ngx_set_inherited_sockets(ngx_cycle_t *cycle); |
218
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196 ngx_int_t ngx_open_listening_sockets(ngx_cycle_t *cycle); |
2802 | 197 void ngx_configure_listening_sockets(ngx_cycle_t *cycle); |
218
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198 void ngx_close_listening_sockets(ngx_cycle_t *cycle); |
417
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199 void ngx_close_connection(ngx_connection_t *c); |
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ngx_connection_local_sockaddr()
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200 ngx_int_t ngx_connection_local_sockaddr(ngx_connection_t *c, ngx_str_t *s, |
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201 ngx_uint_t port); |
253
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202 ngx_int_t ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text); |
218
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203 |
543 | 204 ngx_connection_t *ngx_get_connection(ngx_socket_t s, ngx_log_t *log); |
205 void ngx_free_connection(ngx_connection_t *c); | |
91
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206 |
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207 void ngx_reusable_connection(ngx_connection_t *c, ngx_uint_t reusable); |
91
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208 |
0
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209 #endif /* _NGX_CONNECTION_H_INCLUDED_ */ |