annotate src/http/ngx_http_upstream_round_robin.h @ 326:9fc4ab6673f9 NGINX_0_6_7

nginx 0.6.7 *) Change: now the paths specified in the "include", "auth_basic_user_file", "perl_modules", "ssl_certificate", "ssl_certificate_key", and "ssl_client_certificate" directives are relative to directory of nginx configuration file nginx.conf, but not to nginx prefix directory. *) Change: the --sysconfdir=PATH option in configure was canceled. *) Change: the special make target "upgrade1" was defined for online upgrade of 0.1.x versions. *) Feature: the "server_name" and "valid_referers" directives support regular expressions. *) Feature: the "server" directive in the "upstream" context supports the "backup" parameter. *) Feature: the ngx_http_perl_module supports the $r->discard_request_body. *) Feature: the "add_header Last-Modified ..." directive changes the "Last-Modified" response header line. *) Bugfix: if an response different than 200 was returned to an request with body and connection went to the keep-alive state after the request, then nginx returned 400 for the next request. *) Bugfix: a segmentation fault occurred in worker process if invalid address was set in the "auth_http" directive. *) Bugfix: now nginx uses default listen backlog value 511 on all platforms except FreeBSD. Thanks to Jiang Hong. *) Bugfix: a worker process may got caught in an endless loop, if an "server" inside "upstream" block was marked as "down"; bug appeared in 0.6.6. *) Bugfix: now Solaris sendfilev() is not used to transfer the client request body to FastCGI-server via the unix domain socket.
author Igor Sysoev <http://sysoev.ru>
date Wed, 15 Aug 2007 00:00:00 +0400
parents f7cd062ee035
children e10168d6e371
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
2 /*
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
3 * Copyright (C) Igor Sysoev
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
4 */
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
5
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
6
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
7 #ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
8 #define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
9
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
10
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
11 #include <ngx_config.h>
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
12 #include <ngx_core.h>
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
13 #include <ngx_http.h>
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
14
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
15
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
16 typedef struct {
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
17 struct sockaddr *sockaddr;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
18 socklen_t socklen;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
19 ngx_str_t name;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
20
324
f7cd062ee035 nginx 0.6.6
Igor Sysoev <http://sysoev.ru>
parents: 318
diff changeset
21 ngx_int_t current_weight;
f7cd062ee035 nginx 0.6.6
Igor Sysoev <http://sysoev.ru>
parents: 318
diff changeset
22 ngx_int_t weight;
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
23
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
24 ngx_uint_t fails;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
25 time_t accessed;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
26
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
27 ngx_uint_t max_fails;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
28 time_t fail_timeout;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
29
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
30 ngx_uint_t down; /* unsigned down:1; */
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
31
324
f7cd062ee035 nginx 0.6.6
Igor Sysoev <http://sysoev.ru>
parents: 318
diff changeset
32 #if (NGX_HTTP_SSL)
318
fc223117327f nginx 0.6.3
Igor Sysoev <http://sysoev.ru>
parents: 272
diff changeset
33 ngx_ssl_session_t *ssl_session; /* local to a process */
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
34 #endif
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
35 } ngx_http_upstream_rr_peer_t;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
36
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
37
326
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
38 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t;
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
39
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
40 struct ngx_http_upstream_rr_peers_s {
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
41 ngx_uint_t single; /* unsigned single:1; */
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
42 ngx_uint_t number;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
43 ngx_uint_t last_cached;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
44
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
45 /* ngx_mutex_t *mutex; */
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
46 ngx_connection_t **cached;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
47
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
48 ngx_str_t *name;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
49
326
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
50 ngx_http_upstream_rr_peers_t *next;
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
51
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
52 ngx_http_upstream_rr_peer_t peer[1];
326
9fc4ab6673f9 nginx 0.6.7
Igor Sysoev <http://sysoev.ru>
parents: 324
diff changeset
53 };
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
54
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
55
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
56 typedef struct {
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
57 ngx_http_upstream_rr_peers_t *peers;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
58 ngx_uint_t current;
272
29a6403156b0 nginx 0.5.6
Igor Sysoev <http://sysoev.ru>
parents: 260
diff changeset
59 uintptr_t *tried;
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
60 uintptr_t data;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
61 } ngx_http_upstream_rr_peer_data_t;
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
62
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
63
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
64 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
65 ngx_http_upstream_srv_conf_t *us);
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
66 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
67 ngx_http_upstream_srv_conf_t *us);
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
68 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
69 void *data);
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
70 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
71 void *data, ngx_uint_t state);
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
72
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
73 #if (NGX_HTTP_SSL)
318
fc223117327f nginx 0.6.3
Igor Sysoev <http://sysoev.ru>
parents: 272
diff changeset
74 ngx_int_t
fc223117327f nginx 0.6.3
Igor Sysoev <http://sysoev.ru>
parents: 272
diff changeset
75 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc,
fc223117327f nginx 0.6.3
Igor Sysoev <http://sysoev.ru>
parents: 272
diff changeset
76 void *data);
fc223117327f nginx 0.6.3
Igor Sysoev <http://sysoev.ru>
parents: 272
diff changeset
77 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc,
260
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
78 void *data);
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
79 #endif
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
80
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
81
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
82
0effe91f6083 nginx 0.5.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
83 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */