annotate src/stream/ngx_stream.h @ 6711:90a03b1dc4db

Modules compatibility: status fields.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 29 Sep 2016 18:06:03 +0300
parents 3ab8736958cb
children cebf5fed00bf
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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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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 enum {
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119 NGX_STREAM_POST_ACCEPT_PHASE = 0,
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120 NGX_STREAM_PREACCESS_PHASE,
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121 NGX_STREAM_ACCESS_PHASE,
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122 #if (NGX_STREAM_SSL)
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123 NGX_STREAM_SSL_PHASE,
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124 #endif
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125 NGX_STREAM_PREREAD_PHASE,
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126 NGX_STREAM_CONTENT_PHASE,
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127 NGX_STREAM_LOG_PHASE
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128 } ngx_stream_phases;
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129
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130
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131 typedef struct ngx_stream_phase_handler_s ngx_stream_phase_handler_t;
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132
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133 typedef ngx_int_t (*ngx_stream_phase_handler_pt)(ngx_stream_session_t *s,
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134 ngx_stream_phase_handler_t *ph);
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135 typedef ngx_int_t (*ngx_stream_handler_pt)(ngx_stream_session_t *s);
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136 typedef void (*ngx_stream_content_handler_pt)(ngx_stream_session_t *s);
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137
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138
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139 struct ngx_stream_phase_handler_s {
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140 ngx_stream_phase_handler_pt checker;
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141 ngx_stream_handler_pt handler;
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142 ngx_uint_t next;
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143 };
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144
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145
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146 typedef struct {
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147 ngx_stream_phase_handler_t *handlers;
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148 } ngx_stream_phase_engine_t;
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149
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parents: 6692
diff changeset
150
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
151 typedef struct {
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
152 ngx_array_t handlers;
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
153 } ngx_stream_phase_t;
6175
8807a2369b1a Stream: access module.
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parents: 6174
diff changeset
154
8807a2369b1a Stream: access module.
Vladimir Homutov <vl@nginx.com>
parents: 6174
diff changeset
155
6115
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
156 typedef struct {
6607
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parents: 6606
diff changeset
157 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
158 ngx_array_t listen; /* ngx_stream_listen_t */
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parents: 6606
diff changeset
159
6693
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
160 ngx_stream_phase_engine_t phase_engine;
6607
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diff changeset
161
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parents: 6606
diff changeset
162 ngx_hash_t variables_hash;
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parents: 6606
diff changeset
163
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parents: 6606
diff changeset
164 ngx_array_t variables; /* ngx_stream_variable_t */
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
165 ngx_uint_t ncaptures;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
166
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parents: 6606
diff changeset
167 ngx_uint_t variables_hash_max_size;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
168 ngx_uint_t variables_hash_bucket_size;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
169
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parents: 6606
diff changeset
170 ngx_hash_keys_arrays_t *variables_keys;
6693
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
171
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
172 ngx_stream_phase_t phases[NGX_STREAM_LOG_PHASE + 1];
6115
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parents:
diff changeset
173 } ngx_stream_core_main_conf_t;
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174
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diff changeset
175
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Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
176 typedef struct {
6693
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
177 ngx_stream_content_handler_pt handler;
6607
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diff changeset
178
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diff changeset
179 ngx_stream_conf_ctx_t *ctx;
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diff changeset
180
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parents: 6606
diff changeset
181 u_char *file_name;
6656
a2f57dfa65a9 Fixed wrong type of the "line" field.
Roman Arutyunyan <arut@nginx.com>
parents: 6618
diff changeset
182 ngx_uint_t line;
6607
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diff changeset
183
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parents: 6606
diff changeset
184 ngx_flag_t tcp_nodelay;
6694
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
185 size_t preread_buffer_size;
ea9dfe2f62e7 Stream: preread phase.
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parents: 6693
diff changeset
186 ngx_msec_t preread_timeout;
6607
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diff changeset
187
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parents: 6606
diff changeset
188 ngx_log_t *error_log;
6618
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
189
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
190 ngx_msec_t resolver_timeout;
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
191 ngx_resolver_t *resolver;
6657
3d5202c71f94 Ensure "listen" exists in a mail or stream server (ticket #1049).
Roman Arutyunyan <arut@nginx.com>
parents: 6656
diff changeset
192
6680
7357abd1fa8c Stream: the "proxy_protocol" parameter of the "listen" directive.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6679
diff changeset
193 ngx_msec_t proxy_protocol_timeout;
7357abd1fa8c Stream: the "proxy_protocol" parameter of the "listen" directive.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6679
diff changeset
194
6657
3d5202c71f94 Ensure "listen" exists in a mail or stream server (ticket #1049).
Roman Arutyunyan <arut@nginx.com>
parents: 6656
diff changeset
195 ngx_uint_t listen; /* unsigned listen:1; */
6115
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parents:
diff changeset
196 } ngx_stream_core_srv_conf_t;
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parents:
diff changeset
197
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diff changeset
198
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
199 struct ngx_stream_session_s {
6607
c70b7f4537e1 Stream: variables and script.
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diff changeset
200 uint32_t signature; /* "STRM" */
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diff changeset
201
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parents: 6606
diff changeset
202 ngx_connection_t *connection;
6115
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diff changeset
203
6607
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diff changeset
204 off_t received;
6669
164a0824ce20 Stream: the $session_time variable.
Vladimir Homutov <vl@nginx.com>
parents: 6657
diff changeset
205 time_t start_sec;
164a0824ce20 Stream: the $session_time variable.
Vladimir Homutov <vl@nginx.com>
parents: 6657
diff changeset
206 ngx_msec_t start_msec;
6115
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parents:
diff changeset
207
6607
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parents: 6606
diff changeset
208 ngx_log_handler_pt log_handler;
6115
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Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
209
6607
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diff changeset
210 void **ctx;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
211 void **main_conf;
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Vladimir Homutov <vl@nginx.com>
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diff changeset
212 void **srv_conf;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
213
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
214 ngx_stream_upstream_t *upstream;
6675
ab9b4fd8c5b7 Stream: the $upstream_addr variable.
Vladimir Homutov <vl@nginx.com>
parents: 6674
diff changeset
215 ngx_array_t *upstream_states;
ab9b4fd8c5b7 Stream: the $upstream_addr variable.
Vladimir Homutov <vl@nginx.com>
parents: 6674
diff changeset
216 /* of ngx_stream_upstream_state_t */
6607
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parents: 6606
diff changeset
217 ngx_stream_variable_value_t *variables;
6115
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diff changeset
218
6607
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diff changeset
219 #if (NGX_PCRE)
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diff changeset
220 ngx_uint_t ncaptures;
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Vladimir Homutov <vl@nginx.com>
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diff changeset
221 int *captures;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
222 u_char *captures_data;
c70b7f4537e1 Stream: variables and script.
Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
223 #endif
6674
38143d1abdec Stream: the $status variable.
Roman Arutyunyan <arut@nginx.com>
parents: 6669
diff changeset
224
6693
3908156a51fa Stream: phases.
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diff changeset
225 ngx_int_t phase_handler;
6674
38143d1abdec Stream: the $status variable.
Roman Arutyunyan <arut@nginx.com>
parents: 6669
diff changeset
226 ngx_uint_t status;
6679
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
227
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
228 #if (NGX_STREAM_SSL)
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
229 unsigned ssl:1;
6679
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
230 #endif
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
231
6711
90a03b1dc4db Modules compatibility: status fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6710
diff changeset
232 unsigned stat_processing:1;
90a03b1dc4db Modules compatibility: status fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6710
diff changeset
233
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
234 unsigned health_check:1;
6115
61d7ae76647d Stream: port from NGINX+.
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diff changeset
235 };
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diff changeset
236
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diff changeset
237
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parents:
diff changeset
238 typedef struct {
6607
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parents: 6606
diff changeset
239 ngx_int_t (*preconfiguration)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
240 ngx_int_t (*postconfiguration)(ngx_conf_t *cf);
6174
68c106e6fa0a Stream: added postconfiguration method to stream modules.
Vladimir Homutov <vl@nginx.com>
parents: 6172
diff changeset
241
6607
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Vladimir Homutov <vl@nginx.com>
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diff changeset
242 void *(*create_main_conf)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
243 char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
6115
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diff changeset
244
6607
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diff changeset
245 void *(*create_srv_conf)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
246 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
247 void *conf);
6115
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
248 } ngx_stream_module_t;
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
249
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parents:
diff changeset
250
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
251 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */
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diff changeset
252
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
253 #define NGX_STREAM_MAIN_CONF 0x02000000
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
254 #define NGX_STREAM_SRV_CONF 0x04000000
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
255 #define NGX_STREAM_UPS_CONF 0x08000000
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
256
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
257
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
258 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf)
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
259 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf)
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diff changeset
260
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
261
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
262 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
263 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
264 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
265
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
266
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
267 #define ngx_stream_get_module_main_conf(s, module) \
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parents:
diff changeset
268 (s)->main_conf[module.ctx_index]
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
269 #define ngx_stream_get_module_srv_conf(s, module) \
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parents:
diff changeset
270 (s)->srv_conf[module.ctx_index]
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parents:
diff changeset
271
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parents:
diff changeset
272 #define ngx_stream_conf_get_module_main_conf(cf, module) \
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parents:
diff changeset
273 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
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parents:
diff changeset
274 #define ngx_stream_conf_get_module_srv_conf(cf, module) \
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parents:
diff changeset
275 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
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diff changeset
276
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parents:
diff changeset
277 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \
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parents:
diff changeset
278 (cycle->conf_ctx[ngx_stream_module.index] ? \
61d7ae76647d Stream: port from NGINX+.
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diff changeset
279 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \
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parents:
diff changeset
280 ->main_conf[module.ctx_index]: \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
281 NULL)
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diff changeset
282
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
283
6692
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
284 #define NGX_STREAM_WRITE_BUFFERED 0x10
56fc55e32f23 Stream: filters.
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parents: 6684
diff changeset
285
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
286
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
287 void ngx_stream_core_run_phases(ngx_stream_session_t *s);
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
288 ngx_int_t ngx_stream_core_generic_phase(ngx_stream_session_t *s,
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
289 ngx_stream_phase_handler_t *ph);
6694
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
290 ngx_int_t ngx_stream_core_preread_phase(ngx_stream_session_t *s,
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
291 ngx_stream_phase_handler_t *ph);
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
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292 ngx_int_t ngx_stream_core_content_phase(ngx_stream_session_t *s,
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293 ngx_stream_phase_handler_t *ph);
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294
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295
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296 void ngx_stream_init_connection(ngx_connection_t *c);
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297 void ngx_stream_session_handler(ngx_event_t *rev);
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298 void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc);
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299
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300
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301 extern ngx_module_t ngx_stream_module;
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302 extern ngx_uint_t ngx_stream_max_module;
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303 extern ngx_module_t ngx_stream_core_module;
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304
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305
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306 typedef ngx_int_t (*ngx_stream_filter_pt)(ngx_stream_session_t *s,
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307 ngx_chain_t *chain, ngx_uint_t from_upstream);
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308
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309
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310 extern ngx_stream_filter_pt ngx_stream_top_filter;
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311
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312
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313 #endif /* _NGX_STREAM_H_INCLUDED_ */