annotate src/stream/ngx_stream.h @ 6680:7357abd1fa8c

Stream: the "proxy_protocol" parameter of the "listen" directive.
author Dmitry Volyntsev <xeioex@nginx.com>
date Tue, 06 Sep 2016 21:28:16 +0300
parents 40e8ce405859
children 9cac11efb205
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1
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2 /*
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3 * Copyright (C) Roman Arutyunyan
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #ifndef _NGX_STREAM_H_INCLUDED_
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9 #define _NGX_STREAM_H_INCLUDED_
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10
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14
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15 #if (NGX_STREAM_SSL)
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16 #include <ngx_stream_ssl_module.h>
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17 #endif
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19
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20 typedef struct ngx_stream_session_s ngx_stream_session_t;
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21
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22
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23 #include <ngx_stream_variables.h>
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24 #include <ngx_stream_script.h>
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25 #include <ngx_stream_upstream.h>
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26 #include <ngx_stream_upstream_round_robin.h>
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27
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28
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29 #define NGX_STREAM_OK 200
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30 #define NGX_STREAM_BAD_REQUEST 400
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31 #define NGX_STREAM_FORBIDDEN 403
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32 #define NGX_STREAM_INTERNAL_SERVER_ERROR 500
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33 #define NGX_STREAM_BAD_GATEWAY 502
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34 #define NGX_STREAM_SERVICE_UNAVAILABLE 503
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35
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36
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37 typedef struct {
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38 void **main_conf;
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39 void **srv_conf;
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40 } ngx_stream_conf_ctx_t;
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41
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42
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43 typedef struct {
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44 ngx_sockaddr_t sockaddr;
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45 socklen_t socklen;
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46
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47 /* server ctx */
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48 ngx_stream_conf_ctx_t *ctx;
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49
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50 unsigned bind:1;
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51 unsigned wildcard:1;
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52 #if (NGX_STREAM_SSL)
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53 unsigned ssl:1;
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54 #endif
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55 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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56 unsigned ipv6only:1;
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57 #endif
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58 #if (NGX_HAVE_REUSEPORT)
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59 unsigned reuseport:1;
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60 #endif
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61 unsigned so_keepalive:2;
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62 unsigned proxy_protocol:1;
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63 #if (NGX_HAVE_KEEPALIVE_TUNABLE)
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64 int tcp_keepidle;
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65 int tcp_keepintvl;
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66 int tcp_keepcnt;
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67 #endif
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68 int backlog;
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69 int type;
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70 } ngx_stream_listen_t;
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73 typedef struct {
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74 ngx_stream_conf_ctx_t *ctx;
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75 ngx_str_t addr_text;
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76 #if (NGX_STREAM_SSL)
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77 unsigned ssl:1;
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78 #endif
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79 unsigned proxy_protocol:1;
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80 } ngx_stream_addr_conf_t;
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81
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82 typedef struct {
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83 in_addr_t addr;
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84 ngx_stream_addr_conf_t conf;
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85 } ngx_stream_in_addr_t;
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86
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87
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88 #if (NGX_HAVE_INET6)
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89
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90 typedef struct {
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91 struct in6_addr addr6;
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92 ngx_stream_addr_conf_t conf;
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93 } ngx_stream_in6_addr_t;
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94
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95 #endif
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96
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98 typedef struct {
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99 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */
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100 void *addrs;
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101 ngx_uint_t naddrs;
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102 } ngx_stream_port_t;
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103
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104
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105 typedef struct {
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106 int family;
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107 int type;
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108 in_port_t port;
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109 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */
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110 } ngx_stream_conf_port_t;
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111
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112
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113 typedef struct {
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114 ngx_stream_listen_t opt;
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115 } ngx_stream_conf_addr_t;
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116
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117
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118 typedef ngx_int_t (*ngx_stream_access_pt)(ngx_stream_session_t *s);
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119
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120
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121 typedef struct {
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122 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */
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123 ngx_array_t listen; /* ngx_stream_listen_t */
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124
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125 ngx_stream_access_pt limit_conn_handler;
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126 ngx_stream_access_pt access_handler;
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127 ngx_stream_access_pt access_log_handler;
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128
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129 ngx_hash_t variables_hash;
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130
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131 ngx_array_t variables; /* ngx_stream_variable_t */
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132 ngx_uint_t ncaptures;
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133
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134 ngx_uint_t variables_hash_max_size;
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135 ngx_uint_t variables_hash_bucket_size;
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136
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137 ngx_hash_keys_arrays_t *variables_keys;
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138 } ngx_stream_core_main_conf_t;
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139
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140
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141 typedef void (*ngx_stream_handler_pt)(ngx_stream_session_t *s);
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142
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143
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144 typedef struct {
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145 ngx_stream_handler_pt handler;
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146
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147 ngx_stream_conf_ctx_t *ctx;
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148
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149 u_char *file_name;
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a2f57dfa65a9 Fixed wrong type of the "line" field.
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150 ngx_uint_t line;
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151
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152 ngx_flag_t tcp_nodelay;
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153
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154 ngx_log_t *error_log;
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155
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156 ngx_msec_t resolver_timeout;
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157 ngx_resolver_t *resolver;
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158
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159 ngx_msec_t proxy_protocol_timeout;
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160
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161 ngx_uint_t listen; /* unsigned listen:1; */
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162 } ngx_stream_core_srv_conf_t;
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163
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164
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165 struct ngx_stream_session_s {
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166 uint32_t signature; /* "STRM" */
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167
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168 ngx_connection_t *connection;
6115
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169
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170 off_t received;
6669
164a0824ce20 Stream: the $session_time variable.
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171 time_t start_sec;
164a0824ce20 Stream: the $session_time variable.
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172 ngx_msec_t start_msec;
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173
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174 ngx_log_handler_pt log_handler;
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175
6607
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176 void **ctx;
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177 void **main_conf;
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178 void **srv_conf;
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179
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180 ngx_stream_upstream_t *upstream;
6675
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181 ngx_array_t *upstream_states;
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182 /* of ngx_stream_upstream_state_t */
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183 ngx_stream_variable_value_t *variables;
6115
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184
6607
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185 #if (NGX_PCRE)
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186 ngx_uint_t ncaptures;
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187 int *captures;
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188 u_char *captures_data;
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189 #endif
6674
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190
38143d1abdec Stream: the $status variable.
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diff changeset
191 ngx_uint_t status;
6679
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192
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193 #if (NGX_STREAM_SSL)
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194 ngx_uint_t ssl; /* unsigned ssl:1; */
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195 #endif
6115
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196 };
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197
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198
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199 typedef struct {
6607
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200 ngx_int_t (*preconfiguration)(ngx_conf_t *cf);
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201 ngx_int_t (*postconfiguration)(ngx_conf_t *cf);
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202
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203 void *(*create_main_conf)(ngx_conf_t *cf);
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204 char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
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205
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206 void *(*create_srv_conf)(ngx_conf_t *cf);
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207 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
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208 void *conf);
6115
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209 } ngx_stream_module_t;
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210
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211
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212 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */
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213
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214 #define NGX_STREAM_MAIN_CONF 0x02000000
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215 #define NGX_STREAM_SRV_CONF 0x04000000
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216 #define NGX_STREAM_UPS_CONF 0x08000000
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217
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218
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219 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf)
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220 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf)
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221
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222
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223 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
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224 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
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225 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
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226
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227
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228 #define ngx_stream_get_module_main_conf(s, module) \
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229 (s)->main_conf[module.ctx_index]
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230 #define ngx_stream_get_module_srv_conf(s, module) \
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231 (s)->srv_conf[module.ctx_index]
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232
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233 #define ngx_stream_conf_get_module_main_conf(cf, module) \
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234 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
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235 #define ngx_stream_conf_get_module_srv_conf(cf, module) \
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236 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
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237
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238 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \
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239 (cycle->conf_ctx[ngx_stream_module.index] ? \
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240 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \
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241 ->main_conf[module.ctx_index]: \
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242 NULL)
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243
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244
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245 void ngx_stream_init_connection(ngx_connection_t *c);
6674
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246 void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc);
6115
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247
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248
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249 extern ngx_module_t ngx_stream_module;
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250 extern ngx_uint_t ngx_stream_max_module;
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251 extern ngx_module_t ngx_stream_core_module;
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252
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253
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254 #endif /* _NGX_STREAM_H_INCLUDED_ */