Mercurial > hg > nginx

annotate src/http/ngx_http_copy_filter_module.c @ 4034:e2c075e774b6

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Cache size accounting fix: actual cache size on disk was less than needed by sum of sizes of files loaded by worker processes themselves while cache loader was running. The bug has been introduced in r3900.
author Igor Sysoev <igor@sysoev.ru>
date Thu, 25 Aug 2011 17:29:34 +0000
parents d29e8060ca0c
children 35f4997c08ce
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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b2e039840718 nginx-0.0.1-2002-12-19-20:49:51 import
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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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53cd05892261 nginx-0.0.1-2002-12-27-19:22:50 import
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a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
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12 typedef struct {
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656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
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13 ngx_bufs_t bufs;
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af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
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14 } ngx_http_copy_filter_conf_t;
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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);
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21 #if (NGX_HAVE_AIO_SENDFILE)
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22 static void ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev);
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23 #endif
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24 #endif
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25
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af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
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26 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf);
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
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27 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf,
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28 void *parent, void *child);
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29 static ngx_int_t ngx_http_copy_filter_init(ngx_conf_t *cf);
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31
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32 static ngx_command_t ngx_http_copy_filter_commands[] = {
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33
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34 { ngx_string("output_buffers"),
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35 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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36 ngx_conf_set_bufs_slot,
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37 NGX_HTTP_LOC_CONF_OFFSET,
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38 offsetof(ngx_http_copy_filter_conf_t, bufs),
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39 NULL },
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40
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41 ngx_null_command
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6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
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42 };
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
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45 static ngx_http_module_t ngx_http_copy_filter_module_ctx = {
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46 NULL, /* preconfiguration */
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47 ngx_http_copy_filter_init, /* postconfiguration */
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4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
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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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e43f406e4525 nginx-0.0.1-2003-03-20-19:09:44 import
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51
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637625a2acdb nginx-0.0.1-2003-05-19-20:39:14 import
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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 */
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53cb81681040 nginx-0.0.1-2002-12-15-09:25:09 import
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57 };
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58
53cb81681040 nginx-0.0.1-2002-12-15-09:25:09 import
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59
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af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
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60 ngx_module_t ngx_http_copy_filter_module = {
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9b8c906f6e63 nginx-0.1.29-RELEASE import
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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 */
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a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
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64 NGX_HTTP_MODULE, /* module type */
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65 NULL, /* init master */
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66 NULL, /* init module */
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67 NULL, /* init process */
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68 NULL, /* init thread */
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69 NULL, /* exit thread */
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70 NULL, /* exit process */
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71 NULL, /* exit master */
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72 NGX_MODULE_V1_PADDING
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73 };
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76 static ngx_http_output_body_filter_pt ngx_http_next_filter;
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79 static ngx_int_t
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80 ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in)
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81 {
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82 ngx_int_t rc;
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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
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88 c = r->connection;
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89
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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);
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92
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93 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module);
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94
50186b49f2ad nginx-0.0.1-2003-02-11-10:14:40 import
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95 if (ctx == NULL) {
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96 ctx = ngx_pcalloc(r->pool, sizeof(ngx_output_chain_ctx_t));
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97 if (ctx == NULL) {
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98 return NGX_ERROR;
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99 }
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100
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101 ngx_http_set_ctx(r, ctx, ngx_http_copy_filter_module);
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102
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103 conf = ngx_http_get_module_loc_conf(r, ngx_http_copy_filter_module);
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104 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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105
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106 ctx->sendfile = c->sendfile;
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107 ctx->need_in_memory = r->main_filter_need_in_memory
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108 || r->filter_need_in_memory;
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55e496a8ece3 nginx-0.0.3-2004-06-06-23:49:18 import
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109 ctx->need_in_temp = r->filter_need_temporary;
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110
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111 ctx->alignment = clcf->directio_alignment;
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112
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113 ctx->pool = r->pool;
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114 ctx->bufs = conf->bufs;
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6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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115 ctx->tag = (ngx_buf_tag_t) &ngx_http_copy_filter_module;
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50186b49f2ad nginx-0.0.1-2003-02-11-10:14:40 import
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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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5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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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 }
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125 #if (NGX_HAVE_AIO_SENDFILE)
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126 c->aio_sendfile = (clcf->aio == NGX_HTTP_AIO_SENDFILE);
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127 #endif
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128 }
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129 #endif
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130
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diff changeset
131 if (in && in->buf && ngx_buf_size(in->buf)) {
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132 r->request_output = 1;
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diff changeset
133 }
60
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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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diff changeset
138 #endif
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139
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140 for ( ;; ) {
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141 rc = ngx_output_chain(ctx, in);
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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);
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152
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153 #if (NGX_HAVE_FILE_AIO && NGX_HAVE_AIO_SENDFILE)
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154
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diff changeset
155 if (c->busy_sendfile) {
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diff changeset
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;
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diff changeset
160
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161 file = c->busy_sendfile->file;
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diff changeset
162 offset = c->busy_sendfile->file_pos;
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163
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diff changeset
164 if (file->aio) {
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165 c->aio_sendfile = (offset != file->aio->last_offset);
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166 file->aio->last_offset = offset;
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167
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168 if (c->aio_sendfile == 0) {
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diff changeset
169 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
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170 "sendfile(%V) returned busy again",
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diff changeset
171 &file->name);
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172 }
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173 }
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174
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diff changeset
175 c->busy_sendfile = NULL;
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diff changeset
176 e = (ngx_http_ephemeral_t *) &r->uri_start;
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177
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diff changeset
178 n = ngx_file_aio_read(file, &e->aio_preload, 1, offset, r->pool);
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179
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180 if (n > 0) {
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181 in = NULL;
3071
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182 continue;
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183 }
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184
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185 rc = n;
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186
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187 if (file->aio) {
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188 file->aio->data = r;
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189 file->aio->handler = ngx_http_copy_aio_sendfile_event_handler;
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190
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191 r->main->blocked++;
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192 r->aio = 1;
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193 }
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194 }
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195 #endif
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196
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197 return rc;
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198 }
4
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diff changeset
199 }
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diff changeset
200
6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
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diff changeset
201
3052
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202 #if (NGX_HAVE_FILE_AIO)
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diff changeset
203
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204 static void
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diff changeset
205 ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx, ngx_file_t *file)
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diff changeset
206 {
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diff changeset
207 ngx_http_request_t *r;
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diff changeset
208
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diff changeset
209 r = ctx->filter_ctx;
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diff changeset
210
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diff changeset
211 file->aio->data = r;
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diff changeset
212 file->aio->handler = ngx_http_copy_aio_event_handler;
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diff changeset
213
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diff changeset
214 r->main->blocked++;
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diff changeset
215 r->aio = 1;
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diff changeset
216 ctx->aio = 1;
3052
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diff changeset
217 }
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diff changeset
218
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diff changeset
219
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diff changeset
220 static void
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diff changeset
221 ngx_http_copy_aio_event_handler(ngx_event_t *ev)
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diff changeset
222 {
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diff changeset
223 ngx_event_aio_t *aio;
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diff changeset
224 ngx_http_request_t *r;
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diff changeset
225
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diff changeset
226 aio = ev->data;
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diff changeset
227 r = aio->data;
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diff changeset
228
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diff changeset
229 r->main->blocked--;
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diff changeset
230 r->aio = 0;
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diff changeset
231
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diff changeset
232 r->connection->write->handler(r->connection->write);
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diff changeset
233 }
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diff changeset
234
3065
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diff changeset
235
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diff changeset
236 #if (NGX_HAVE_AIO_SENDFILE)
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diff changeset
237
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diff changeset
238 static void
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diff changeset
239 ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev)
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diff changeset
240 {
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diff changeset
241 ngx_event_aio_t *aio;
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diff changeset
242 ngx_http_request_t *r;
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diff changeset
243
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diff changeset
244 aio = ev->data;
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diff changeset
245 r = aio->data;
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diff changeset
246
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diff changeset
247 r->main->blocked--;
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diff changeset
248 r->aio = 0;
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diff changeset
249 ev->complete = 0;
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diff changeset
250
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diff changeset
251 r->connection->write->handler(r->connection->write);
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diff changeset
252 }
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diff changeset
253
113cd532b328 aio sendfile
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diff changeset
254 #endif
3052
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diff changeset
255 #endif
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diff changeset
256
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diff changeset
257
501
d4ea69372b94 nginx-0.1.25-RELEASE import
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parents: 452
diff changeset
258 static void *
d4ea69372b94 nginx-0.1.25-RELEASE import
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diff changeset
259 ngx_http_copy_filter_create_conf(ngx_conf_t *cf)
9
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parents: 8
diff changeset
260 {
334
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
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parents: 327
diff changeset
261 ngx_http_copy_filter_conf_t *conf;
9
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diff changeset
262
501
d4ea69372b94 nginx-0.1.25-RELEASE import
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parents: 452
diff changeset
263 conf = ngx_palloc(cf->pool, sizeof(ngx_http_copy_filter_conf_t));
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parents: 452
diff changeset
264 if (conf == NULL) {
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diff changeset
265 return NULL;
d4ea69372b94 nginx-0.1.25-RELEASE import
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parents: 452
diff changeset
266 }
9
6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
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parents: 8
diff changeset
267
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
268 conf->bufs.num = 0;
10
4f3879d9b6f6 nginx-0.0.1-2002-09-11-19:18:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 9
diff changeset
269
4f3879d9b6f6 nginx-0.0.1-2002-09-11-19:18:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 9
diff changeset
270 return conf;
9
6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents: 8
diff changeset
271 }
44
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
272
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
273
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
274 static char *
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
275 ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child)
44
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
276 {
334
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
277 ngx_http_copy_filter_conf_t *prev = parent;
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
278 ngx_http_copy_filter_conf_t *conf = child;
44
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
279
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
280 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 1, 32768);
44
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
281
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
282 return NULL;
0e81ac0bb3e2 nginx-0.0.1-2003-01-09-08:36:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 43
diff changeset
283 }
334
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
284
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
285
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
286 static ngx_int_t
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 667
diff changeset
287 ngx_http_copy_filter_init(ngx_conf_t *cf)
334
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
288 {
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
289 ngx_http_next_filter = ngx_http_top_body_filter;
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
290 ngx_http_top_body_filter = ngx_http_copy_filter;
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
291
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
292 return NGX_OK;
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
293 }
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 327
diff changeset
294