Mercurial > hg > nginx
annotate src/stream/ngx_stream.h @ 6154:cca856715722
Upstream: report to error_log when max_fails is reached.
This can be useful to understand why "no live upstreams" happens,
in particular.
| author | Ruslan Ermilov <ru@nginx.com> |
|---|---|
| date | Wed, 20 May 2015 22:44:00 +0300 |
| parents | 4f6efabcb09b |
| children | f654addf0eea |
| rev | line source |
|---|---|
| 6115 | 1 |
| 2 /* | |
| 3 * Copyright (C) Roman Arutyunyan | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #ifndef _NGX_STREAM_H_INCLUDED_ | |
| 9 #define _NGX_STREAM_H_INCLUDED_ | |
| 10 | |
| 11 | |
| 12 #include <ngx_config.h> | |
| 13 #include <ngx_core.h> | |
| 14 | |
| 15 #if (NGX_STREAM_SSL) | |
| 16 #include <ngx_stream_ssl_module.h> | |
| 17 #endif | |
| 18 | |
| 19 | |
| 20 typedef struct ngx_stream_session_s ngx_stream_session_t; | |
| 21 | |
| 22 | |
| 23 #include <ngx_stream_upstream.h> | |
| 24 #include <ngx_stream_upstream_round_robin.h> | |
| 25 | |
| 26 | |
| 27 typedef struct { | |
| 28 void **main_conf; | |
| 29 void **srv_conf; | |
| 30 } ngx_stream_conf_ctx_t; | |
| 31 | |
| 32 | |
| 33 typedef struct { | |
| 34 u_char sockaddr[NGX_SOCKADDRLEN]; | |
| 35 socklen_t socklen; | |
| 36 | |
| 37 /* server ctx */ | |
| 38 ngx_stream_conf_ctx_t *ctx; | |
| 39 | |
| 40 unsigned bind:1; | |
| 41 unsigned wildcard:1; | |
| 42 #if (NGX_STREAM_SSL) | |
| 43 unsigned ssl:1; | |
| 44 #endif | |
| 45 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
| 46 unsigned ipv6only:1; | |
| 47 #endif | |
|
6153
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6129
diff
changeset
|
48 #if (NGX_HAVE_REUSEPORT) |
|
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6129
diff
changeset
|
49 unsigned reuseport:1; |
|
4f6efabcb09b
The "reuseport" option of the "listen" directive.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6129
diff
changeset
|
50 #endif |
| 6115 | 51 unsigned so_keepalive:2; |
| 52 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
| 53 int tcp_keepidle; | |
| 54 int tcp_keepintvl; | |
| 55 int tcp_keepcnt; | |
| 56 #endif | |
| 57 } ngx_stream_listen_t; | |
| 58 | |
| 59 | |
| 60 typedef struct { | |
| 61 ngx_stream_conf_ctx_t *ctx; | |
| 62 ngx_str_t addr_text; | |
| 63 #if (NGX_STREAM_SSL) | |
| 64 ngx_uint_t ssl; /* unsigned ssl:1; */ | |
| 65 #endif | |
| 66 } ngx_stream_addr_conf_t; | |
| 67 | |
| 68 typedef struct { | |
| 69 in_addr_t addr; | |
| 70 ngx_stream_addr_conf_t conf; | |
| 71 } ngx_stream_in_addr_t; | |
| 72 | |
| 73 | |
| 74 #if (NGX_HAVE_INET6) | |
| 75 | |
| 76 typedef struct { | |
| 77 struct in6_addr addr6; | |
| 78 ngx_stream_addr_conf_t conf; | |
| 79 } ngx_stream_in6_addr_t; | |
| 80 | |
| 81 #endif | |
| 82 | |
| 83 | |
| 84 typedef struct { | |
| 85 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */ | |
| 86 void *addrs; | |
| 87 ngx_uint_t naddrs; | |
| 88 } ngx_stream_port_t; | |
| 89 | |
| 90 | |
| 91 typedef struct { | |
| 92 int family; | |
| 93 in_port_t port; | |
| 94 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */ | |
| 95 } ngx_stream_conf_port_t; | |
| 96 | |
| 97 | |
| 98 typedef struct { | |
| 99 struct sockaddr *sockaddr; | |
| 100 socklen_t socklen; | |
| 101 | |
| 102 ngx_stream_conf_ctx_t *ctx; | |
| 103 | |
| 104 unsigned bind:1; | |
| 105 unsigned wildcard:1; | |
| 106 #if (NGX_STREAM_SSL) | |
| 107 unsigned ssl:1; | |
| 108 #endif | |
| 109 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
| 110 unsigned ipv6only:1; | |
| 111 #endif | |
| 112 unsigned so_keepalive:2; | |
| 113 #if (NGX_HAVE_KEEPALIVE_TUNABLE) | |
| 114 int tcp_keepidle; | |
| 115 int tcp_keepintvl; | |
| 116 int tcp_keepcnt; | |
| 117 #endif | |
| 118 } ngx_stream_conf_addr_t; | |
| 119 | |
| 120 | |
| 121 typedef struct { | |
| 122 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */ | |
| 123 ngx_array_t listen; /* ngx_stream_listen_t */ | |
| 124 } ngx_stream_core_main_conf_t; | |
| 125 | |
| 126 | |
| 127 typedef void (*ngx_stream_handler_pt)(ngx_stream_session_t *s); | |
| 128 | |
| 129 | |
| 130 typedef struct { | |
| 131 ngx_stream_handler_pt handler; | |
| 132 ngx_stream_conf_ctx_t *ctx; | |
| 133 u_char *file_name; | |
| 134 ngx_int_t line; | |
| 135 ngx_log_t *error_log; | |
| 136 } ngx_stream_core_srv_conf_t; | |
| 137 | |
| 138 | |
| 139 struct ngx_stream_session_s { | |
| 140 uint32_t signature; /* "STRM" */ | |
| 141 | |
| 142 ngx_connection_t *connection; | |
| 143 | |
| 144 off_t received; | |
| 145 | |
| 146 ngx_log_handler_pt log_handler; | |
| 147 | |
| 148 void **ctx; | |
| 149 void **main_conf; | |
| 150 void **srv_conf; | |
| 151 | |
| 152 ngx_stream_upstream_t *upstream; | |
| 153 }; | |
| 154 | |
| 155 | |
| 156 typedef struct { | |
| 157 void *(*create_main_conf)(ngx_conf_t *cf); | |
| 158 char *(*init_main_conf)(ngx_conf_t *cf, void *conf); | |
| 159 | |
| 160 void *(*create_srv_conf)(ngx_conf_t *cf); | |
| 161 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, | |
| 162 void *conf); | |
| 163 } ngx_stream_module_t; | |
| 164 | |
| 165 | |
| 166 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */ | |
| 167 | |
| 168 #define NGX_STREAM_MAIN_CONF 0x02000000 | |
| 169 #define NGX_STREAM_SRV_CONF 0x04000000 | |
| 170 #define NGX_STREAM_UPS_CONF 0x08000000 | |
| 171 | |
| 172 | |
| 173 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf) | |
| 174 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf) | |
| 175 | |
| 176 | |
| 177 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index] | |
| 178 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c; | |
| 179 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL; | |
| 180 | |
| 181 | |
| 182 #define ngx_stream_get_module_main_conf(s, module) \ | |
| 183 (s)->main_conf[module.ctx_index] | |
| 184 #define ngx_stream_get_module_srv_conf(s, module) \ | |
| 185 (s)->srv_conf[module.ctx_index] | |
| 186 | |
| 187 #define ngx_stream_conf_get_module_main_conf(cf, module) \ | |
| 188 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index] | |
| 189 #define ngx_stream_conf_get_module_srv_conf(cf, module) \ | |
| 190 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index] | |
| 191 | |
| 192 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \ | |
| 193 (cycle->conf_ctx[ngx_stream_module.index] ? \ | |
| 194 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \ | |
| 195 ->main_conf[module.ctx_index]: \ | |
| 196 NULL) | |
| 197 | |
| 198 | |
| 199 void ngx_stream_init_connection(ngx_connection_t *c); | |
| 200 void ngx_stream_close_connection(ngx_connection_t *c); | |
| 201 | |
| 202 | |
| 203 extern ngx_module_t ngx_stream_module; | |
| 204 extern ngx_uint_t ngx_stream_max_module; | |
| 205 extern ngx_module_t ngx_stream_core_module; | |
| 206 | |
| 207 | |
| 208 #endif /* _NGX_STREAM_H_INCLUDED_ */ |