blob: 35d9fce6ca9bbd873b64951872eb2d79866155a6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#ifndef _NGX_STREAM_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
#define _NGX_STREAM_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_stream.h>
typedef struct ngx_stream_upstream_rr_peer_s ngx_stream_upstream_rr_peer_t;
struct ngx_stream_upstream_rr_peer_s {
struct sockaddr *sockaddr;
socklen_t socklen;
ngx_str_t name;
ngx_str_t server;
ngx_int_t current_weight;
ngx_int_t effective_weight;
ngx_int_t weight;
ngx_uint_t conns;
ngx_uint_t max_conns;
ngx_uint_t fails;
time_t accessed;
time_t checked;
ngx_uint_t max_fails;
time_t fail_timeout;
ngx_msec_t slow_start;
ngx_msec_t start_time;
ngx_uint_t down;
void *ssl_session;
int ssl_session_len;
#if (NGX_STREAM_UPSTREAM_ZONE)
ngx_atomic_t lock;
#endif
ngx_stream_upstream_rr_peer_t *next;
NGX_COMPAT_BEGIN(25)
NGX_COMPAT_END
};
typedef struct ngx_stream_upstream_rr_peers_s ngx_stream_upstream_rr_peers_t;
struct ngx_stream_upstream_rr_peers_s {
ngx_uint_t number;
#if (NGX_STREAM_UPSTREAM_ZONE)
ngx_slab_pool_t *shpool;
ngx_atomic_t rwlock;
ngx_stream_upstream_rr_peers_t *zone_next;
#endif
ngx_uint_t total_weight;
unsigned single:1;
unsigned weighted:1;
ngx_str_t *name;
ngx_stream_upstream_rr_peers_t *next;
ngx_stream_upstream_rr_peer_t *peer;
};
#if (NGX_STREAM_UPSTREAM_ZONE)
#define ngx_stream_upstream_rr_peers_rlock(peers) \
\
if (peers->shpool) { \
ngx_rwlock_rlock(&peers->rwlock); \
}
#define ngx_stream_upstream_rr_peers_wlock(peers) \
\
if (peers->shpool) { \
ngx_rwlock_wlock(&peers->rwlock); \
}
#define ngx_stream_upstream_rr_peers_unlock(peers) \
\
if (peers->shpool) { \
ngx_rwlock_unlock(&peers->rwlock); \
}
#define ngx_stream_upstream_rr_peer_lock(peers, peer) \
\
if (peers->shpool) { \
ngx_rwlock_wlock(&peer->lock); \
}
#define ngx_stream_upstream_rr_peer_unlock(peers, peer) \
\
if (peers->shpool) { \
ngx_rwlock_unlock(&peer->lock); \
}
#else
#define ngx_stream_upstream_rr_peers_rlock(peers)
#define ngx_stream_upstream_rr_peers_wlock(peers)
#define ngx_stream_upstream_rr_peers_unlock(peers)
#define ngx_stream_upstream_rr_peer_lock(peers, peer)
#define ngx_stream_upstream_rr_peer_unlock(peers, peer)
#endif
typedef struct {
ngx_uint_t config;
ngx_stream_upstream_rr_peers_t *peers;
ngx_stream_upstream_rr_peer_t *current;
uintptr_t *tried;
uintptr_t data;
} ngx_stream_upstream_rr_peer_data_t;
ngx_int_t ngx_stream_upstream_init_round_robin(ngx_conf_t *cf,
ngx_stream_upstream_srv_conf_t *us);
ngx_int_t ngx_stream_upstream_init_round_robin_peer(ngx_stream_session_t *s,
ngx_stream_upstream_srv_conf_t *us);
ngx_int_t ngx_stream_upstream_create_round_robin_peer(ngx_stream_session_t *s,
ngx_stream_upstream_resolved_t *ur);
ngx_int_t ngx_stream_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
void *data);
void ngx_stream_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
void *data, ngx_uint_t state);
#endif /* _NGX_STREAM_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */
|
