Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_event_proxy_handler.c @ 19:d7908993fdeb
nginx-0.0.1-2002-12-02-19:09:40 import; resume after 2 months stall
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 02 Dec 2002 16:09:40 +0000 |
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children | a649c0a0adb3 |
rev | line source |
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19
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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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11 |
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12 |
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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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17 |
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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 |