Mercurial > hg > nginx-quic
annotate src/http/ngx_http_copy_filter_module.c @ 6929:3069dd358ba2
Cancelable timers are now preserved if there are other timers.
There is no need to cancel timers early if there are other timers blocking
shutdown anyway. Preserving such timers allows nginx to continue some
periodic work till the shutdown is actually possible.
With the new approach, timers with ev->cancelable are simply ignored when
checking if there are any timers left during shutdown.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 07 Mar 2017 18:51:15 +0300 |
parents | c5f81dcf97a7 |
children | ce37362a7a70 |
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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6 |
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7 |
33
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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_http.h> |
43
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11 |
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12 |
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13 typedef struct { |
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14 ngx_bufs_t bufs; |
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15 } ngx_http_copy_filter_conf_t; |
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17 |
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18 #if (NGX_HAVE_FILE_AIO) |
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19 static void ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx, |
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20 ngx_file_t *file); |
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21 static void ngx_http_copy_aio_event_handler(ngx_event_t *ev); |
3065 | 22 #if (NGX_HAVE_AIO_SENDFILE) |
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23 static ssize_t ngx_http_copy_aio_sendfile_preload(ngx_buf_t *file); |
3065 | 24 static void ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev); |
25 #endif | |
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26 #endif |
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27 #if (NGX_THREADS) |
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28 static ngx_int_t ngx_http_copy_thread_handler(ngx_thread_task_t *task, |
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29 ngx_file_t *file); |
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30 static void ngx_http_copy_thread_event_handler(ngx_event_t *ev); |
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31 #endif |
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32 |
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33 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf); |
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34 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, |
501 | 35 void *parent, void *child); |
681 | 36 static ngx_int_t ngx_http_copy_filter_init(ngx_conf_t *cf); |
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37 |
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38 |
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39 static ngx_command_t ngx_http_copy_filter_commands[] = { |
10
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40 |
501 | 41 { ngx_string("output_buffers"), |
42 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
43 ngx_conf_set_bufs_slot, | |
44 NGX_HTTP_LOC_CONF_OFFSET, | |
45 offsetof(ngx_http_copy_filter_conf_t, bufs), | |
46 NULL }, | |
10
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47 |
501 | 48 ngx_null_command |
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49 }; |
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51 |
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52 static ngx_http_module_t ngx_http_copy_filter_module_ctx = { |
509 | 53 NULL, /* preconfiguration */ |
681 | 54 ngx_http_copy_filter_init, /* postconfiguration */ |
177
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55 |
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56 NULL, /* create main configuration */ |
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57 NULL, /* init main configuration */ |
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58 |
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59 NULL, /* create server configuration */ |
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60 NULL, /* merge server configuration */ |
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61 |
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62 ngx_http_copy_filter_create_conf, /* create location configuration */ |
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63 ngx_http_copy_filter_merge_conf /* merge location configuration */ |
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64 }; |
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65 |
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66 |
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67 ngx_module_t ngx_http_copy_filter_module = { |
509 | 68 NGX_MODULE_V1, |
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69 &ngx_http_copy_filter_module_ctx, /* module context */ |
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70 ngx_http_copy_filter_commands, /* module directives */ |
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71 NGX_HTTP_MODULE, /* module type */ |
541 | 72 NULL, /* init master */ |
681 | 73 NULL, /* init module */ |
541 | 74 NULL, /* init process */ |
75 NULL, /* init thread */ | |
76 NULL, /* exit thread */ | |
77 NULL, /* exit process */ | |
78 NULL, /* exit master */ | |
79 NGX_MODULE_V1_PADDING | |
40
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80 }; |
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81 |
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82 |
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83 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
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84 |
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85 |
501 | 86 static ngx_int_t |
87 ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
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88 { |
583 | 89 ngx_int_t rc; |
90 ngx_connection_t *c; | |
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91 ngx_output_chain_ctx_t *ctx; |
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92 ngx_http_core_loc_conf_t *clcf; |
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93 ngx_http_copy_filter_conf_t *conf; |
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94 |
583 | 95 c = r->connection; |
96 | |
97 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
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98 "http copy filter: \"%V?%V\"", &r->uri, &r->args); |
509 | 99 |
100 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module); | |
60
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101 |
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102 if (ctx == NULL) { |
501 | 103 ctx = ngx_pcalloc(r->pool, sizeof(ngx_output_chain_ctx_t)); |
104 if (ctx == NULL) { | |
105 return NGX_ERROR; | |
106 } | |
107 | |
108 ngx_http_set_ctx(r, ctx, ngx_http_copy_filter_module); | |
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109 |
3053 | 110 conf = ngx_http_get_module_loc_conf(r, ngx_http_copy_filter_module); |
111 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
112 | |
583 | 113 ctx->sendfile = c->sendfile; |
513 | 114 ctx->need_in_memory = r->main_filter_need_in_memory |
115 || r->filter_need_in_memory; | |
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116 ctx->need_in_temp = r->filter_need_temporary; |
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117 |
3053 | 118 ctx->alignment = clcf->directio_alignment; |
119 | |
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120 ctx->pool = r->pool; |
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121 ctx->bufs = conf->bufs; |
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122 ctx->tag = (ngx_buf_tag_t) &ngx_http_copy_filter_module; |
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123 |
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124 ctx->output_filter = (ngx_output_chain_filter_pt) |
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125 ngx_http_next_body_filter; |
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126 ctx->filter_ctx = r; |
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127 |
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128 #if (NGX_HAVE_FILE_AIO) |
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129 if (ngx_file_aio && clcf->aio == NGX_HTTP_AIO_ON) { |
6004 | 130 ctx->aio_handler = ngx_http_copy_aio_handler; |
3065 | 131 #if (NGX_HAVE_AIO_SENDFILE) |
6004 | 132 ctx->aio_preload = ngx_http_copy_aio_sendfile_preload; |
3065 | 133 #endif |
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134 } |
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135 #endif |
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136 |
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137 #if (NGX_THREADS) |
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138 if (clcf->aio == NGX_HTTP_AIO_THREADS) { |
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139 ctx->thread_handler = ngx_http_copy_thread_handler; |
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140 } |
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141 #endif |
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142 |
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143 if (in && in->buf && ngx_buf_size(in->buf)) { |
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144 r->request_output = 1; |
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145 } |
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146 } |
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147 |
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148 #if (NGX_HAVE_FILE_AIO || NGX_THREADS) |
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149 ctx->aio = r->aio; |
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150 #endif |
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151 |
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152 rc = ngx_output_chain(ctx, in); |
583 | 153 |
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154 if (ctx->in == NULL) { |
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155 r->buffered &= ~NGX_HTTP_COPY_BUFFERED; |
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156 |
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157 } else { |
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158 r->buffered |= NGX_HTTP_COPY_BUFFERED; |
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159 } |
3065 | 160 |
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161 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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162 "http copy filter: %i \"%V?%V\"", rc, &r->uri, &r->args); |
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163 |
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164 return rc; |
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165 } |
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166 |
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167 |
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168 #if (NGX_HAVE_FILE_AIO) |
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169 |
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170 static void |
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171 ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx, ngx_file_t *file) |
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172 { |
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173 ngx_http_request_t *r; |
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174 |
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175 r = ctx->filter_ctx; |
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176 |
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177 file->aio->data = r; |
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178 file->aio->handler = ngx_http_copy_aio_event_handler; |
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179 |
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180 r->main->blocked++; |
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181 r->aio = 1; |
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182 ctx->aio = 1; |
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183 } |
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184 |
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185 |
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186 static void |
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187 ngx_http_copy_aio_event_handler(ngx_event_t *ev) |
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188 { |
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189 ngx_event_aio_t *aio; |
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190 ngx_http_request_t *r; |
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191 |
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192 aio = ev->data; |
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193 r = aio->data; |
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194 |
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195 r->main->blocked--; |
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196 r->aio = 0; |
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197 |
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198 r->connection->write->handler(r->connection->write); |
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199 } |
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200 |
3065 | 201 |
202 #if (NGX_HAVE_AIO_SENDFILE) | |
203 | |
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204 static ssize_t |
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205 ngx_http_copy_aio_sendfile_preload(ngx_buf_t *file) |
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206 { |
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207 ssize_t n; |
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208 static u_char buf[1]; |
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209 ngx_event_aio_t *aio; |
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210 ngx_http_request_t *r; |
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211 ngx_output_chain_ctx_t *ctx; |
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212 |
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213 n = ngx_file_aio_read(file->file, buf, 1, file->file_pos, NULL); |
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214 |
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215 if (n == NGX_AGAIN) { |
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216 aio = file->file->aio; |
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217 aio->handler = ngx_http_copy_aio_sendfile_event_handler; |
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218 |
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219 r = aio->data; |
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220 r->main->blocked++; |
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221 r->aio = 1; |
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222 |
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223 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module); |
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224 ctx->aio = 1; |
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225 } |
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226 |
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227 return n; |
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228 } |
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229 |
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230 |
3065 | 231 static void |
232 ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev) | |
233 { | |
234 ngx_event_aio_t *aio; | |
235 ngx_http_request_t *r; | |
236 | |
237 aio = ev->data; | |
238 r = aio->data; | |
239 | |
240 r->main->blocked--; | |
241 r->aio = 0; | |
242 ev->complete = 0; | |
243 | |
244 r->connection->write->handler(r->connection->write); | |
245 } | |
246 | |
247 #endif | |
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248 #endif |
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249 |
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250 |
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251 #if (NGX_THREADS) |
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252 |
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253 static ngx_int_t |
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254 ngx_http_copy_thread_handler(ngx_thread_task_t *task, ngx_file_t *file) |
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255 { |
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256 ngx_str_t name; |
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257 ngx_thread_pool_t *tp; |
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258 ngx_http_request_t *r; |
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259 ngx_output_chain_ctx_t *ctx; |
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260 ngx_http_core_loc_conf_t *clcf; |
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261 |
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262 r = file->thread_ctx; |
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263 |
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264 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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265 tp = clcf->thread_pool; |
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266 |
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267 if (tp == NULL) { |
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268 if (ngx_http_complex_value(r, clcf->thread_pool_value, &name) |
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269 != NGX_OK) |
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270 { |
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271 return NGX_ERROR; |
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272 } |
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273 |
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274 tp = ngx_thread_pool_get((ngx_cycle_t *) ngx_cycle, &name); |
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275 |
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276 if (tp == NULL) { |
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277 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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278 "thread pool \"%V\" not found", &name); |
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279 return NGX_ERROR; |
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280 } |
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281 } |
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282 |
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283 task->event.data = r; |
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284 task->event.handler = ngx_http_copy_thread_event_handler; |
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285 |
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286 if (ngx_thread_task_post(tp, task) != NGX_OK) { |
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287 return NGX_ERROR; |
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288 } |
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289 |
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290 r->main->blocked++; |
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291 r->aio = 1; |
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292 |
6423
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293 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module); |
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294 ctx->aio = 1; |
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295 |
6022
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296 return NGX_OK; |
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297 } |
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298 |
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299 |
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300 static void |
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301 ngx_http_copy_thread_event_handler(ngx_event_t *ev) |
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302 { |
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303 ngx_http_request_t *r; |
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304 |
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305 r = ev->data; |
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306 |
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307 r->main->blocked--; |
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308 r->aio = 0; |
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309 |
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310 r->connection->write->handler(r->connection->write); |
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311 } |
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312 |
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313 #endif |
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314 |
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315 |
501 | 316 static void * |
317 ngx_http_copy_filter_create_conf(ngx_conf_t *cf) | |
9
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318 { |
334
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319 ngx_http_copy_filter_conf_t *conf; |
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320 |
501 | 321 conf = ngx_palloc(cf->pool, sizeof(ngx_http_copy_filter_conf_t)); |
322 if (conf == NULL) { | |
323 return NULL; | |
324 } | |
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325 |
141
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326 conf->bufs.num = 0; |
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327 |
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328 return conf; |
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329 } |
44
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330 |
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331 |
501 | 332 static char * |
333 ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
44
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334 { |
334
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335 ngx_http_copy_filter_conf_t *prev = parent; |
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336 ngx_http_copy_filter_conf_t *conf = child; |
44
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337 |
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338 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 2, 32768); |
44
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339 |
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340 return NULL; |
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341 } |
334
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342 |
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343 |
501 | 344 static ngx_int_t |
681 | 345 ngx_http_copy_filter_init(ngx_conf_t *cf) |
334
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346 { |
4542
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Local variable "ngx_http_next_filter" renamed to "ngx_http_next_body_filter"
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347 ngx_http_next_body_filter = ngx_http_top_body_filter; |
334
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348 ngx_http_top_body_filter = ngx_http_copy_filter; |
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349 |
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350 return NGX_OK; |
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351 } |
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352 |