1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
8 #define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
9
10
11 #include <ngx_config.h>
12 #include <ngx_core.h>
13 #include <ngx_http.h>
14
15
16 typedef struct {
17 struct sockaddr *sockaddr;
18 socklen_t socklen;
19 ngx_str_t name;
20
21 ngx_int_t current_weight;
22 ngx_int_t weight;
23
24 ngx_uint_t fails;
25 time_t accessed;
26
27 ngx_uint_t max_fails;
28 time_t fail_timeout;
29
30 ngx_uint_t down; /* unsigned down:1; */
31
32 #if (NGX_HTTP_SSL)
33 ngx_ssl_session_t *ssl_session; /* local to a process */
34 #endif
35 } ngx_http_upstream_rr_peer_t;
36
37
38 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t;
39
40 struct ngx_http_upstream_rr_peers_s {
41 ngx_uint_t single; /* unsigned single:1; */
42 ngx_uint_t number;
43 ngx_uint_t last_cached;
44
45 /* ngx_mutex_t *mutex; */
46 ngx_connection_t **cached;
47
48 ngx_str_t *name;
49
50 ngx_http_upstream_rr_peers_t *next;
51
52 ngx_http_upstream_rr_peer_t peer[1];
53 };
54
55
56 typedef struct {
57 ngx_http_upstream_rr_peers_t *peers;
58 ngx_uint_t current;
59 uintptr_t *tried;
60 uintptr_t data;
61 } ngx_http_upstream_rr_peer_data_t;
62
63
64 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
65 ngx_http_upstream_srv_conf_t *us);
66 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
67 ngx_http_upstream_srv_conf_t *us);
68 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
69 ngx_http_upstream_resolved_t *ur);
70 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
71 void *data);
72 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
73 void *data, ngx_uint_t state);
74
75 #if (NGX_HTTP_SSL)
76 ngx_int_t
77 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc,
78 void *data);
79 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc,
80 void *data);
81 #endif
82
83
84
85 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */
86
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