Mercurial > hg > nginx

annotate src/http/modules/proxy/ngx_http_proxy_handler.h @ 174:ea464a6c0581

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nginx-0.0.1-2003-11-05-01:12:39 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 04 Nov 2003 22:12:39 +0000
parents caa57ddf6d77
children e92c2c647c57
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842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
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parents:
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1 #ifndef _NGX_HTTP_PROXY_HANDLER_H_INCLUDED_
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2 #define _NGX_HTTP_PROXY_HANDLER_H_INCLUDED_
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3
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5 #include <ngx_config.h>
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6 #include <ngx_core.h>
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7 #include <ngx_event.h>
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8 #include <ngx_event_connect.h>
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9 #include <ngx_event_pipe.h>
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842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
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10 #include <ngx_http.h>
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13 typedef enum {
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14 NGX_HTTP_PROXY_CACHE_PASS = 1,
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15 NGX_HTTP_PROXY_CACHE_BYPASS,
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16 NGX_HTTP_PROXY_CACHE_AUTH,
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17 NGX_HTTP_PROXY_CACHE_PGNC,
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18 NGX_HTTP_PROXY_CACHE_MISS,
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19 NGX_HTTP_PROXY_CACHE_EXPR,
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20 NGX_HTTP_PROXY_CACHE_AGED,
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21 NGX_HTTP_PROXY_CACHE_HIT
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22 } ngx_http_proxy_state_e;
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25 typedef enum {
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26 NGX_HTTP_PROXY_CACHE_BPS = 1,
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27 NGX_HTTP_PROXY_CACHE_XAE,
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28 NGX_HTTP_PROXY_CACHE_CTL,
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29 NGX_HTTP_PROXY_CACHE_EXP,
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30 NGX_HTTP_PROXY_CACHE_MVD,
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31 NGX_HTTP_PROXY_CACHE_LMF,
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32 NGX_HTTP_PROXY_CACHE_PDE
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33 } ngx_http_proxy_reason_e;
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34
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35
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36 typedef struct {
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37 ngx_str_t url;
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38 ngx_str_t host;
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39 ngx_str_t uri;
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40 ngx_str_t host_header;
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41 ngx_str_t port_text;
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42 ngx_str_t *location;
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43 int port;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
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44 } ngx_http_proxy_upstream_conf_t;
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47 typedef struct {
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48 ssize_t request_buffer_size;
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49 ngx_msec_t connect_timeout;
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50 ngx_msec_t send_timeout;
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51 ssize_t header_buffer_size;
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52 ngx_msec_t read_timeout;
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53
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54 ngx_bufs_t bufs;
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55 ssize_t busy_buffers_size;
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57 ssize_t max_temp_file_size;
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58 ssize_t temp_file_write_size;
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59 int cyclic_temp_file;
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61 int cache;
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63 int pass_server;
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64 int pass_x_accel_expires;
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65
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66 int ignore_expires;
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67 int lm_factor;
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68 int default_expires;
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69
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70 int next_upstream;
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71 int use_stale;
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73 ngx_path_t *cache_path;
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74 ngx_path_t *temp_path;
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76 ngx_http_busy_lock_t *busy_lock;
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77
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78 ngx_http_proxy_upstream_conf_t *upstream;
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79 ngx_peers_t *peers;
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80 } ngx_http_proxy_loc_conf_t;
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83 typedef struct {
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84 ngx_http_proxy_state_e cache;
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85 ngx_http_proxy_reason_e reason;
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86 int status;
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87 ngx_str_t *peer;
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88 } ngx_http_proxy_state_t;
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91 typedef struct {
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92 ngx_table_t *headers; /* it must be first field */
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93
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94 ngx_table_elt_t *date;
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95 ngx_table_elt_t *server;
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96
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97 ngx_table_elt_t *expires;
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98 ngx_table_elt_t *cache_control;
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99 ngx_table_elt_t *x_accel_expires;
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100
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101 ngx_table_elt_t *connection;
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102 ngx_table_elt_t *content_type;
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103 ngx_table_elt_t *content_length;
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104 ngx_table_elt_t *last_modified;
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105 ngx_table_elt_t *accept_ranges;
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106
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107 off_t content_length_n;
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108 } ngx_http_proxy_headers_in_t;
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111 typedef struct {
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112 ngx_http_cache_ctx_t ctx;
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113 int status;
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114 ngx_str_t status_line;
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115
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Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
116 ngx_http_proxy_headers_in_t headers_in;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
117 } ngx_http_proxy_cache_t;
137
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
118
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
119
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
120 typedef struct {
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
121 ngx_peer_connection_t peer;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
122 int status;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
123 ngx_str_t status_line;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
124 int method;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
125
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
126 ngx_output_chain_ctx_t *output_chain_ctx;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
127 ngx_event_pipe_t *event_pipe;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
128
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
129 ngx_http_proxy_headers_in_t headers_in;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
130 } ngx_http_proxy_upstream_t;
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
131
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
132
124
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133 typedef struct ngx_http_proxy_ctx_s ngx_http_proxy_ctx_t;
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
134
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
135 struct ngx_http_proxy_ctx_s {
137
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
136 ngx_http_request_t *request;
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
137 ngx_http_proxy_loc_conf_t *lcf;
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
138 ngx_http_proxy_upstream_t *upstream;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
139 ngx_http_proxy_cache_t *cache;
124
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
141 ngx_hunk_t *header_in;
124
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
143
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
144 unsigned accel:1;
139
54307053f185 nginx-0.0.1-2003-10-07-19:30:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 138
diff changeset
145
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
146 unsigned cachable:1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
147 unsigned stale:1;
174
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
148 unsigned valid_header_in:1;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
149
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
150 unsigned request_sent:1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
151 unsigned header_sent:1;
139
54307053f185 nginx-0.0.1-2003-10-07-19:30:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 138
diff changeset
152
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
153
138
3b168e12bd2d nginx-0.0.1-2003-10-06-07:56:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 137
diff changeset
154 /* used to parse an upstream HTTP header */
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
155 int status;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
156 char *status_start;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
157 char *status_end;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
158 int status_count;
172
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
159 int parse_state;
137
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
160
172
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
161 ngx_http_proxy_state_t *state;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
162 ngx_array_t states; /* of ngx_http_proxy_state_t */
169
edf29bb717da nginx-0.0.1-2003-10-31-19:05:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 164
diff changeset
163
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
164 char *action;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
165 ngx_http_log_ctx_t *saved_ctx;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
166 ngx_log_handler_pt saved_handler;
124
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 };
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
170 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
171
172
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
172
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
173 #define NGX_HTTP_PROXY_FT_ERROR 2
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
174 #define NGX_HTTP_PROXY_FT_TIMEOUT 4
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
175 #define NGX_HTTP_PROXY_FT_INVALID_HEADER 8
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
176 #define NGX_HTTP_PROXY_FT_HTTP_500 16
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
177 #define NGX_HTTP_PROXY_FT_HTTP_404 32
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
178 #define NGX_HTTP_PROXY_FT_BUSY_LOCK 64
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
179 #define NGX_HTTP_PROXY_FT_MAX_WAITING 128
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
180
137
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
181
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
182 int ngx_http_proxy_request_upstream(ngx_http_proxy_ctx_t *p);
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
183
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
184 int ngx_http_proxy_get_cached_response(ngx_http_proxy_ctx_t *p);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
185 int ngx_http_proxy_send_cached_response(ngx_http_proxy_ctx_t *p);
172
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
186 int ngx_http_proxy_is_cachable(ngx_http_proxy_ctx_t *p);
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
187 int ngx_http_proxy_update_cache(ngx_http_proxy_ctx_t *p);
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
188
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
189 size_t ngx_http_proxy_log_error(void *data, char *buf, size_t len);
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
190 void ngx_http_proxy_finalize_request(ngx_http_proxy_ctx_t *p, int rc);
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
191 void ngx_http_proxy_close_connection(ngx_connection_t *c);
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
192
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
193 int ngx_http_proxy_parse_status_line(ngx_http_proxy_ctx_t *p);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
194 int ngx_http_proxy_copy_header(ngx_http_proxy_ctx_t *p,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
195 ngx_http_proxy_headers_in_t *headers_in);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
196
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
197
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
198
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
199 extern ngx_module_t ngx_http_proxy_module;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
200 extern ngx_http_header_t ngx_http_proxy_headers_in[];
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 169
diff changeset
201
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 159
diff changeset
202
137
2a615b036870 nginx-0.0.1-2003-10-03-19:50:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
203
124
842a78cebbb7 nginx-0.0.1-2003-08-01-18:56:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204 #endif /* _NGX_HTTP_PROXY_HANDLER_H_INCLUDED_ */