annotate src/stream/ngx_stream.h @ 6720:9170240f1241

Modules compatibility: removed unneeded NGX_HAVE_REUSEPORT checks. Removed NGX_HAVE_REUSEPORT from the signature accordingly.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 03 Oct 2016 15:58:29 +0300
parents cebf5fed00bf
children f41c2530dd17
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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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18
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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
6719
cebf5fed00bf Modules compatibility: removed unneeded IPV6_V6ONLY checks.
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55 #if (NGX_HAVE_INET6)
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56 unsigned ipv6only:1;
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57 #endif
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58 unsigned reuseport:1;
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59 unsigned so_keepalive:2;
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60 unsigned proxy_protocol:1;
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61 #if (NGX_HAVE_KEEPALIVE_TUNABLE)
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62 int tcp_keepidle;
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63 int tcp_keepintvl;
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64 int tcp_keepcnt;
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65 #endif
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66 int backlog;
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67 int type;
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68 } ngx_stream_listen_t;
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69
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71 typedef struct {
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72 ngx_stream_conf_ctx_t *ctx;
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73 ngx_str_t addr_text;
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74 #if (NGX_STREAM_SSL)
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75 unsigned ssl:1;
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76 #endif
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77 unsigned proxy_protocol:1;
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78 } ngx_stream_addr_conf_t;
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79
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80 typedef struct {
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81 in_addr_t addr;
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82 ngx_stream_addr_conf_t conf;
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83 } ngx_stream_in_addr_t;
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84
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85
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86 #if (NGX_HAVE_INET6)
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87
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88 typedef struct {
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89 struct in6_addr addr6;
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90 ngx_stream_addr_conf_t conf;
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91 } ngx_stream_in6_addr_t;
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92
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93 #endif
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94
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96 typedef struct {
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97 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */
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98 void *addrs;
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99 ngx_uint_t naddrs;
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100 } ngx_stream_port_t;
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101
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102
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103 typedef struct {
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104 int family;
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105 int type;
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106 in_port_t port;
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107 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */
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108 } ngx_stream_conf_port_t;
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109
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110
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111 typedef struct {
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112 ngx_stream_listen_t opt;
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113 } ngx_stream_conf_addr_t;
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114
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115
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116 typedef enum {
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117 NGX_STREAM_POST_ACCEPT_PHASE = 0,
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118 NGX_STREAM_PREACCESS_PHASE,
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119 NGX_STREAM_ACCESS_PHASE,
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120 #if (NGX_STREAM_SSL)
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121 NGX_STREAM_SSL_PHASE,
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122 #endif
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123 NGX_STREAM_PREREAD_PHASE,
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124 NGX_STREAM_CONTENT_PHASE,
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125 NGX_STREAM_LOG_PHASE
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126 } ngx_stream_phases;
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127
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128
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129 typedef struct ngx_stream_phase_handler_s ngx_stream_phase_handler_t;
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130
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131 typedef ngx_int_t (*ngx_stream_phase_handler_pt)(ngx_stream_session_t *s,
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132 ngx_stream_phase_handler_t *ph);
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133 typedef ngx_int_t (*ngx_stream_handler_pt)(ngx_stream_session_t *s);
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134 typedef void (*ngx_stream_content_handler_pt)(ngx_stream_session_t *s);
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135
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136
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137 struct ngx_stream_phase_handler_s {
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138 ngx_stream_phase_handler_pt checker;
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139 ngx_stream_handler_pt handler;
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140 ngx_uint_t next;
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141 };
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142
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143
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144 typedef struct {
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145 ngx_stream_phase_handler_t *handlers;
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146 } ngx_stream_phase_engine_t;
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147
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148
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149 typedef struct {
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150 ngx_array_t handlers;
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
151 } ngx_stream_phase_t;
6175
8807a2369b1a Stream: access module.
Vladimir Homutov <vl@nginx.com>
parents: 6174
diff changeset
152
8807a2369b1a Stream: access module.
Vladimir Homutov <vl@nginx.com>
parents: 6174
diff changeset
153
6115
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Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
154 typedef struct {
6607
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parents: 6606
diff changeset
155 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
156 ngx_array_t listen; /* ngx_stream_listen_t */
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parents: 6606
diff changeset
157
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
158 ngx_stream_phase_engine_t phase_engine;
6607
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diff changeset
159
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
160 ngx_hash_t variables_hash;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
161
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parents: 6606
diff changeset
162 ngx_array_t variables; /* ngx_stream_variable_t */
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
163 ngx_uint_t ncaptures;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
164
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parents: 6606
diff changeset
165 ngx_uint_t variables_hash_max_size;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
166 ngx_uint_t variables_hash_bucket_size;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
167
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
168 ngx_hash_keys_arrays_t *variables_keys;
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
169
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
170 ngx_stream_phase_t phases[NGX_STREAM_LOG_PHASE + 1];
6115
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parents:
diff changeset
171 } ngx_stream_core_main_conf_t;
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172
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diff changeset
173
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Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
174 typedef struct {
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
175 ngx_stream_content_handler_pt handler;
6607
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diff changeset
176
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parents: 6606
diff changeset
177 ngx_stream_conf_ctx_t *ctx;
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parents: 6606
diff changeset
178
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
179 u_char *file_name;
6656
a2f57dfa65a9 Fixed wrong type of the "line" field.
Roman Arutyunyan <arut@nginx.com>
parents: 6618
diff changeset
180 ngx_uint_t line;
6607
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diff changeset
181
c70b7f4537e1 Stream: variables and script.
Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
182 ngx_flag_t tcp_nodelay;
6694
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
183 size_t preread_buffer_size;
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
184 ngx_msec_t preread_timeout;
6607
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diff changeset
185
c70b7f4537e1 Stream: variables and script.
Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
186 ngx_log_t *error_log;
6618
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
187
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
188 ngx_msec_t resolver_timeout;
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
189 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
190
6680
7357abd1fa8c Stream: the "proxy_protocol" parameter of the "listen" directive.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6679
diff changeset
191 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
192
6657
3d5202c71f94 Ensure "listen" exists in a mail or stream server (ticket #1049).
Roman Arutyunyan <arut@nginx.com>
parents: 6656
diff changeset
193 ngx_uint_t listen; /* unsigned listen:1; */
6115
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
194 } ngx_stream_core_srv_conf_t;
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
195
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
196
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
197 struct ngx_stream_session_s {
6607
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
198 uint32_t signature; /* "STRM" */
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Vladimir Homutov <vl@nginx.com>
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diff changeset
199
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
200 ngx_connection_t *connection;
6115
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
201
6607
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parents: 6606
diff changeset
202 off_t received;
6669
164a0824ce20 Stream: the $session_time variable.
Vladimir Homutov <vl@nginx.com>
parents: 6657
diff changeset
203 time_t start_sec;
164a0824ce20 Stream: the $session_time variable.
Vladimir Homutov <vl@nginx.com>
parents: 6657
diff changeset
204 ngx_msec_t start_msec;
6115
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parents:
diff changeset
205
6607
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diff changeset
206 ngx_log_handler_pt log_handler;
6115
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
207
6607
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parents: 6606
diff changeset
208 void **ctx;
c70b7f4537e1 Stream: variables and script.
Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
209 void **main_conf;
c70b7f4537e1 Stream: variables and script.
Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
210 void **srv_conf;
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
211
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
212 ngx_stream_upstream_t *upstream;
6675
ab9b4fd8c5b7 Stream: the $upstream_addr variable.
Vladimir Homutov <vl@nginx.com>
parents: 6674
diff changeset
213 ngx_array_t *upstream_states;
ab9b4fd8c5b7 Stream: the $upstream_addr variable.
Vladimir Homutov <vl@nginx.com>
parents: 6674
diff changeset
214 /* of ngx_stream_upstream_state_t */
6607
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
215 ngx_stream_variable_value_t *variables;
6115
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
216
6607
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diff changeset
217 #if (NGX_PCRE)
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diff changeset
218 ngx_uint_t ncaptures;
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Vladimir Homutov <vl@nginx.com>
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diff changeset
219 int *captures;
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parents: 6606
diff changeset
220 u_char *captures_data;
c70b7f4537e1 Stream: variables and script.
Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
221 #endif
6674
38143d1abdec Stream: the $status variable.
Roman Arutyunyan <arut@nginx.com>
parents: 6669
diff changeset
222
6693
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
223 ngx_int_t phase_handler;
6674
38143d1abdec Stream: the $status variable.
Roman Arutyunyan <arut@nginx.com>
parents: 6669
diff changeset
224 ngx_uint_t status;
6679
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
225
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
226 #if (NGX_STREAM_SSL)
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
227 unsigned ssl:1;
6679
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
228 #endif
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
229
6711
90a03b1dc4db Modules compatibility: status fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6710
diff changeset
230 unsigned stat_processing:1;
90a03b1dc4db Modules compatibility: status fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6710
diff changeset
231
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
232 unsigned health_check:1;
6115
61d7ae76647d Stream: port from NGINX+.
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diff changeset
233 };
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parents:
diff changeset
234
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Ruslan Ermilov <ru@nginx.com>
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diff changeset
235
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
236 typedef struct {
6607
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parents: 6606
diff changeset
237 ngx_int_t (*preconfiguration)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
238 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
239
6607
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Vladimir Homutov <vl@nginx.com>
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diff changeset
240 void *(*create_main_conf)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
241 char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
6115
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parents:
diff changeset
242
6607
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parents: 6606
diff changeset
243 void *(*create_srv_conf)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
244 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
245 void *conf);
6115
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
246 } ngx_stream_module_t;
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
247
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
248
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
249 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */
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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_MAIN_CONF 0x02000000
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
252 #define NGX_STREAM_SRV_CONF 0x04000000
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
253 #define NGX_STREAM_UPS_CONF 0x08000000
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
254
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
255
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
256 #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
257 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf)
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
258
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
259
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
260 #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
261 #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
262 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
263
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
264
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
265 #define ngx_stream_get_module_main_conf(s, module) \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
266 (s)->main_conf[module.ctx_index]
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
267 #define ngx_stream_get_module_srv_conf(s, module) \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
268 (s)->srv_conf[module.ctx_index]
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
269
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
270 #define ngx_stream_conf_get_module_main_conf(cf, module) \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
271 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
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parents:
diff changeset
272 #define ngx_stream_conf_get_module_srv_conf(cf, module) \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
273 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
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parents:
diff changeset
274
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Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
275 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \
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parents:
diff changeset
276 (cycle->conf_ctx[ngx_stream_module.index] ? \
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parents:
diff changeset
277 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
278 ->main_conf[module.ctx_index]: \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
279 NULL)
61d7ae76647d Stream: port from NGINX+.
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diff changeset
280
61d7ae76647d Stream: port from NGINX+.
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diff changeset
281
6692
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
282 #define NGX_STREAM_WRITE_BUFFERED 0x10
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
283
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
284
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
285 void ngx_stream_core_run_phases(ngx_stream_session_t *s);
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
286 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
287 ngx_stream_phase_handler_t *ph);
6694
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
288 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
289 ngx_stream_phase_handler_t *ph);
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
290 ngx_int_t ngx_stream_core_content_phase(ngx_stream_session_t *s,
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
291 ngx_stream_phase_handler_t *ph);
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
292
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293
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294 void ngx_stream_init_connection(ngx_connection_t *c);
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295 void ngx_stream_session_handler(ngx_event_t *rev);
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296 void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc);
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297
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298
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299 extern ngx_module_t ngx_stream_module;
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300 extern ngx_uint_t ngx_stream_max_module;
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301 extern ngx_module_t ngx_stream_core_module;
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302
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303
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304 typedef ngx_int_t (*ngx_stream_filter_pt)(ngx_stream_session_t *s,
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305 ngx_chain_t *chain, ngx_uint_t from_upstream);
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306
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307
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308 extern ngx_stream_filter_pt ngx_stream_top_filter;
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309
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310
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311 #endif /* _NGX_STREAM_H_INCLUDED_ */