Mercurial > hg > nginx-quic
annotate src/http/ngx_http_copy_filter_module.c @ 4364:096c859b2113 stable-1.0
Merge of r4305:
Fixed segfault on ssl servers without cert with SNI (ticket #54).
Non-default servers may not have ssl context created if there are no
certificate defined. Make sure to check if ssl context present before
using it.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 14 Dec 2011 18:00:50 +0000 |
parents | 35861ba428d1 |
children | d620f497c50f |
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 |
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4 */ |
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5 |
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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_http.h> |
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11 |
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12 typedef struct { |
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13 ngx_bufs_t bufs; |
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14 } ngx_http_copy_filter_conf_t; |
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15 |
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16 |
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17 #if (NGX_HAVE_FILE_AIO) |
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18 static void ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx, |
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19 ngx_file_t *file); |
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20 static void ngx_http_copy_aio_event_handler(ngx_event_t *ev); |
3065 | 21 #if (NGX_HAVE_AIO_SENDFILE) |
22 static void ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev); | |
23 #endif | |
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24 #endif |
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25 |
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26 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf); |
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27 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, |
501 | 28 void *parent, void *child); |
681 | 29 static ngx_int_t ngx_http_copy_filter_init(ngx_conf_t *cf); |
10
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30 |
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31 |
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32 static ngx_command_t ngx_http_copy_filter_commands[] = { |
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33 |
501 | 34 { ngx_string("output_buffers"), |
35 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
36 ngx_conf_set_bufs_slot, | |
37 NGX_HTTP_LOC_CONF_OFFSET, | |
38 offsetof(ngx_http_copy_filter_conf_t, bufs), | |
39 NULL }, | |
10
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40 |
501 | 41 ngx_null_command |
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42 }; |
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43 |
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44 |
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45 static ngx_http_module_t ngx_http_copy_filter_module_ctx = { |
509 | 46 NULL, /* preconfiguration */ |
681 | 47 ngx_http_copy_filter_init, /* postconfiguration */ |
177
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48 |
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49 NULL, /* create main configuration */ |
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50 NULL, /* init main configuration */ |
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51 |
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52 NULL, /* create server configuration */ |
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53 NULL, /* merge server configuration */ |
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54 |
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55 ngx_http_copy_filter_create_conf, /* create location configuration */ |
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56 ngx_http_copy_filter_merge_conf /* merge location configuration */ |
26
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57 }; |
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58 |
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59 |
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60 ngx_module_t ngx_http_copy_filter_module = { |
509 | 61 NGX_MODULE_V1, |
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62 &ngx_http_copy_filter_module_ctx, /* module context */ |
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63 ngx_http_copy_filter_commands, /* module directives */ |
96
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64 NGX_HTTP_MODULE, /* module type */ |
541 | 65 NULL, /* init master */ |
681 | 66 NULL, /* init module */ |
541 | 67 NULL, /* init process */ |
68 NULL, /* init thread */ | |
69 NULL, /* exit thread */ | |
70 NULL, /* exit process */ | |
71 NULL, /* exit master */ | |
72 NGX_MODULE_V1_PADDING | |
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73 }; |
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74 |
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75 |
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76 static ngx_http_output_body_filter_pt ngx_http_next_filter; |
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77 |
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78 |
501 | 79 static ngx_int_t |
80 ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
60
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81 { |
583 | 82 ngx_int_t rc; |
83 ngx_connection_t *c; | |
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84 ngx_output_chain_ctx_t *ctx; |
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85 ngx_http_core_loc_conf_t *clcf; |
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86 ngx_http_copy_filter_conf_t *conf; |
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87 |
583 | 88 c = r->connection; |
89 | |
90 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
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91 "http copy filter: \"%V?%V\"", &r->uri, &r->args); |
509 | 92 |
93 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module); | |
60
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94 |
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95 if (ctx == NULL) { |
501 | 96 ctx = ngx_pcalloc(r->pool, sizeof(ngx_output_chain_ctx_t)); |
97 if (ctx == NULL) { | |
98 return NGX_ERROR; | |
99 } | |
100 | |
101 ngx_http_set_ctx(r, ctx, ngx_http_copy_filter_module); | |
60
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102 |
3053 | 103 conf = ngx_http_get_module_loc_conf(r, ngx_http_copy_filter_module); |
104 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
105 | |
583 | 106 ctx->sendfile = c->sendfile; |
513 | 107 ctx->need_in_memory = r->main_filter_need_in_memory |
108 || r->filter_need_in_memory; | |
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109 ctx->need_in_temp = r->filter_need_temporary; |
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110 |
3053 | 111 ctx->alignment = clcf->directio_alignment; |
112 | |
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113 ctx->pool = r->pool; |
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114 ctx->bufs = conf->bufs; |
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115 ctx->tag = (ngx_buf_tag_t) &ngx_http_copy_filter_module; |
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116 |
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117 ctx->output_filter = (ngx_output_chain_filter_pt) ngx_http_next_filter; |
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118 ctx->filter_ctx = r; |
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119 |
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120 #if (NGX_HAVE_FILE_AIO) |
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121 if (ngx_file_aio) { |
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122 if (clcf->aio) { |
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123 ctx->aio_handler = ngx_http_copy_aio_handler; |
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124 } |
3065 | 125 #if (NGX_HAVE_AIO_SENDFILE) |
126 c->aio_sendfile = (clcf->aio == NGX_HTTP_AIO_SENDFILE); | |
127 #endif | |
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128 } |
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129 #endif |
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130 |
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131 if (in && in->buf && ngx_buf_size(in->buf)) { |
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132 r->request_output = 1; |
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133 } |
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134 } |
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135 |
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136 #if (NGX_HAVE_FILE_AIO) |
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137 ctx->aio = r->aio; |
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138 #endif |
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139 |
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140 for ( ;; ) { |
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141 rc = ngx_output_chain(ctx, in); |
509 | 142 |
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143 if (ctx->in == NULL) { |
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144 r->buffered &= ~NGX_HTTP_COPY_BUFFERED; |
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145 |
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146 } else { |
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147 r->buffered |= NGX_HTTP_COPY_BUFFERED; |
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148 } |
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149 |
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150 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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151 "http copy filter: %i \"%V?%V\"", rc, &r->uri, &r->args); |
583 | 152 |
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153 #if (NGX_HAVE_FILE_AIO && NGX_HAVE_AIO_SENDFILE) |
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155 if (c->busy_sendfile) { |
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156 ssize_t n; |
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157 off_t offset; |
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158 ngx_file_t *file; |
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159 ngx_http_ephemeral_t *e; |
3065 | 160 |
4254 | 161 if (r->aio) { |
162 c->busy_sendfile = NULL; | |
163 return rc; | |
164 } | |
165 | |
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166 file = c->busy_sendfile->file; |
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167 offset = c->busy_sendfile->file_pos; |
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168 |
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169 if (file->aio) { |
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170 c->aio_sendfile = (offset != file->aio->last_offset); |
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171 file->aio->last_offset = offset; |
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173 if (c->aio_sendfile == 0) { |
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174 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
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175 "sendfile(%V) returned busy again", |
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176 &file->name); |
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177 } |
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178 } |
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179 |
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180 c->busy_sendfile = NULL; |
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181 e = (ngx_http_ephemeral_t *) &r->uri_start; |
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182 |
3085 | 183 n = ngx_file_aio_read(file, &e->aio_preload, 1, offset, r->pool); |
3065 | 184 |
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185 if (n > 0) { |
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186 in = NULL; |
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187 continue; |
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188 } |
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189 |
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190 rc = n; |
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191 |
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192 if (file->aio) { |
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193 file->aio->data = r; |
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194 file->aio->handler = ngx_http_copy_aio_sendfile_event_handler; |
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195 |
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196 r->main->blocked++; |
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197 r->aio = 1; |
3065 | 198 } |
199 } | |
200 #endif | |
201 | |
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202 return rc; |
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203 } |
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204 } |
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205 |
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206 |
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207 #if (NGX_HAVE_FILE_AIO) |
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208 |
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209 static void |
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210 ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx, ngx_file_t *file) |
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211 { |
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212 ngx_http_request_t *r; |
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213 |
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214 r = ctx->filter_ctx; |
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215 |
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216 file->aio->data = r; |
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217 file->aio->handler = ngx_http_copy_aio_event_handler; |
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218 |
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219 r->main->blocked++; |
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220 r->aio = 1; |
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221 ctx->aio = 1; |
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222 } |
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223 |
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224 |
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225 static void |
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226 ngx_http_copy_aio_event_handler(ngx_event_t *ev) |
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227 { |
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228 ngx_event_aio_t *aio; |
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229 ngx_http_request_t *r; |
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230 |
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231 aio = ev->data; |
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232 r = aio->data; |
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233 |
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234 r->main->blocked--; |
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235 r->aio = 0; |
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236 |
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237 r->connection->write->handler(r->connection->write); |
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238 } |
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239 |
3065 | 240 |
241 #if (NGX_HAVE_AIO_SENDFILE) | |
242 | |
243 static void | |
244 ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev) | |
245 { | |
246 ngx_event_aio_t *aio; | |
247 ngx_http_request_t *r; | |
248 | |
249 aio = ev->data; | |
250 r = aio->data; | |
251 | |
252 r->main->blocked--; | |
253 r->aio = 0; | |
254 ev->complete = 0; | |
255 | |
256 r->connection->write->handler(r->connection->write); | |
257 } | |
258 | |
259 #endif | |
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260 #endif |
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261 |
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262 |
501 | 263 static void * |
264 ngx_http_copy_filter_create_conf(ngx_conf_t *cf) | |
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265 { |
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266 ngx_http_copy_filter_conf_t *conf; |
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267 |
501 | 268 conf = ngx_palloc(cf->pool, sizeof(ngx_http_copy_filter_conf_t)); |
269 if (conf == NULL) { | |
270 return NULL; | |
271 } | |
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272 |
141
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273 conf->bufs.num = 0; |
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274 |
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275 return conf; |
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276 } |
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277 |
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278 |
501 | 279 static char * |
280 ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
44
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281 { |
334
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282 ngx_http_copy_filter_conf_t *prev = parent; |
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283 ngx_http_copy_filter_conf_t *conf = child; |
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284 |
160
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285 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 1, 32768); |
44
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286 |
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287 return NULL; |
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288 } |
334
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289 |
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290 |
501 | 291 static ngx_int_t |
681 | 292 ngx_http_copy_filter_init(ngx_conf_t *cf) |
334
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293 { |
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294 ngx_http_next_filter = ngx_http_top_body_filter; |
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295 ngx_http_top_body_filter = ngx_http_copy_filter; |
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296 |
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297 return NGX_OK; |
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nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
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