Mercurial > hg > nginx

annotate src/http/modules/ngx_http_event_proxy_handler.c @ 19:d7908993fdeb

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nginx-0.0.1-2002-12-02-19:09:40 import; resume after 2 months stall
author Igor Sysoev <igor@sysoev.ru>
date Mon, 02 Dec 2002 16:09:40 +0000
parents
children a649c0a0adb3
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19
d7908993fdeb nginx-0.0.1-2002-12-02-19:09:40 import; resume after 2 months stall
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1
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2 #include <ngx_config.h>
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3 #include <ngx_core.h>
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4 #include <ngx_string.h>
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5 #include <ngx_file.h>
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6 #include <ngx_hunk.h>
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7 #include <ngx_http.h>
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8 #include <ngx_http_event_proxy_handler.h>
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9
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10 ngx_http_module_t ngx_http_proxy_module;
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13 static int ngx_http_proxy_connect(ngx_http_request_t *r,
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14 struct sockaddr_in *addr,
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15 char *addr_text);
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16 static int ngx_http_proxy_send_request(ngx_event_t *ev);
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18
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19 int ngx_http_proxy_handler(ngx_http_request_t *r)
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20 {
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21 struct sockaddr_in addr;
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22 ngx_http_proxy_ctx_t *p;
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23
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24 p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
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25
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26 if (p == NULL)
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27 ngx_http_create_ctx(r, p, ngx_http_proxy_module,
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28 sizeof(ngx_http_proxy_ctx_t));
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29
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30 ngx_memzero(&addr, sizeof(struct sockaddr_in));
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31 addr.sin_family = AF_INET;
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32 addr.sin_addr.s_addr = inet_addr("127.0.0.1");
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33 addr.sin_port = htons(9000);
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34
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35 ngx_http_proxy_connect(r, &addr, "connecting to 127.0.0.1:9000");
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36 }
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37
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38 static int ngx_http_proxy_connect(ngx_http_request_t *r,
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39 struct sockaddr_in *addr,
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40 char *addr_text)
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41 {
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42 int rc;
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43 ngx_err_t err;
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44 ngx_socket_t s;
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45 ngx_event_t *ev;
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46 ngx_connection_t *c;
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47 ngx_http_log_ctx_t *ctx;
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48
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49 c = r->connection;
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50 ctx = c->log->data;
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51 ctx->action = addr_text;
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52
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53 s = ngx_socket(AF_INET, SOCK_STREAM, IPPROTO_IP, 0);
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54 if (s == -1) {
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55 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
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56 ngx_socket_n " failed");
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57 return NGX_ERROR;
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58 }
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59
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60 #if 0
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61 if (rcvbuf) {
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62 if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
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63 (const void *) &rcvbuf, sizeof(int)) == -1) {
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64 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
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65 "setsockopt(SO_RCVBUF) failed");
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66
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67 if (ngx_close_socket(s) == -1)
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68 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
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69 ngx_close_socket_n " failed");
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70
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71 return NGX_ERROR;
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72 }
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73 }
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74 #endif
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75
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76 if (ngx_nonblocking(s) == -1) {
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77 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
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78 ngx_nonblocking_n " failed");
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79
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80 if (ngx_close_socket(s) == -1)
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81 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
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82 ngx_close_socket_n " failed");
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83
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84 return NGX_ERROR;
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85 }
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86
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87 rc = connect(s, (struct sockaddr *) addr, sizeof(struct sockaddr_in));
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88
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89 if (rc == -1) {
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90 err = ngx_socket_errno;
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91 if (err != NGX_EINPROGRESS) {
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92 ngx_log_error(NGX_LOG_ERR, c->log, err, "connect() failed");
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93
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94 if (ngx_close_socket(s) == -1)
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95 ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
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96 ngx_close_socket_n " failed");
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97
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98 return NGX_ERROR;
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99 }
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100 }
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101
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102 ngx_memzero(&ngx_read_events[s], sizeof(ngx_event_t));
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103 ngx_memzero(&ngx_write_events[s], sizeof(ngx_event_t));
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104 ngx_memzero(&ngx_connections[s], sizeof(ngx_connection_t));
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105
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106 ngx_read_events[s].data = ngx_write_events[s].data = &ngx_connections[s];
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107 ngx_connections[s].read = &ngx_read_events[s];
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108 ngx_connections[s].write = &ngx_write_events[s];
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109
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110 ngx_connections[s].fd = s;
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111 ngx_connections[s].server = c->server;
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112 ngx_connections[s].servers = c->servers;
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113
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114 ngx_connections[s].log =
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115 ngx_read_events[s].log = ngx_write_events[s].log = c->log;
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116
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117 if (rc == -1) {
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118 ngx_write_events[s].event_handler = ngx_http_proxy_send_request;
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119
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120 return ngx_add_event(&ngx_write_events[s],
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121 NGX_WRITE_EVENT, NGX_ONESHOT_EVENT);
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122 }
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123
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124 ngx_write_events[s].write = 1;
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125 ngx_write_events[s].ready = 1;
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126
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127 return ngx_http_proxy_send_request(ev);
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128 }
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129
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130 static int ngx_http_proxy_send_request(ngx_event_t *ev)
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131 {
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132 return NGX_ERROR;
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133 }
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134
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135 #if 0
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136
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137 static int ngx_http_proxy_send_request(ngx_event_t *ev)
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138 {
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139 ngx_connection_t *c;
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140 ngx_http_request_t *r;
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141 ngx_http_proxy_ctx_t *p;
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142
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143 c = (ngx_connection_t *) ev->data;
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144 r = (ngx_http_request_t *) c->data;
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145 p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
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146
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147 n = ngx_send(p->fd, p->header_out->pos.mem,
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148 p->header_out->end.mem - p->header_out->pos.mem);
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149
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150 if (n == NGX_ERROR) {
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151 ngx_log_error(NGX_LOG_ERR, r->log, ngx_socket_errno,
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152 ngx_send_n " %s falied", p->addr_text);
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153 return NGX_ERROR;
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154 }
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155
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156 p->header_out->pos.mem += n;
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157
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158 if (p->header_out->end.mem - p->header_out->pos.mem > 0)
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159 return NGX_AGAIN;
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160
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161 /* TODO: body */
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162
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163 return NGX_OK;
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164 }
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165
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166 static int ngx_http_proxy_read_response_header(ngx_event_t *ev)
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167 {
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168 ngx_connection_t *c;
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169 ngx_http_request_t *r;
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170 ngx_http_proxy_ctx_t *p;
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171
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172 if (ev->timedout)
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173 return NGX_ERROR;
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174
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175 c = (ngx_connection_t *) ev->data;
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176 r = (ngx_http_request_t *) c->data;
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177 p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
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178
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179 n = ngx_event_recv(c, p->header_in->last.mem,
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180 p->header_in->end - p->header_in->last.mem);
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181
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182 }
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183
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184 static int ngx_http_proxy_read_response_body(ngx_event_t *ev)
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185 {
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186 ngx_connection_t *c;
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187 ngx_http_request_t *r;
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188 ngx_http_proxy_ctx_t *p;
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189
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190 if (ev->timedout)
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191 return NGX_ERROR;
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192
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193 c = (ngx_connection_t *) ev->data;
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194 r = (ngx_http_request_t *) c->data;
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195 p = (ngx_http_proxy_ctx_t *) ngx_get_module_ctx(r, ngx_http_proxy_module);
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196
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197 }
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198
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199 static int ngx_http_proxy_write_to_client(ngx_event_t *ev)
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200 {
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201 /* если бэкенд быстрее, то CLEAR, иначе - ONESHOT */
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202
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203 rc = ngx_http_output_filter(r, h);
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204 }
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205
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206 #endif