Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream_round_robin.h @ 6705:29bf0dbc0a77
Upstream: max_conns.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Thu, 22 Sep 2016 19:32:47 +0300 |
parents | d69964eb8335 |
children | 4080f94a996f |
rev | line source |
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884 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
884 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ | |
9 #define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 #include <ngx_http.h> | |
15 | |
16 | |
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17 typedef struct ngx_http_upstream_rr_peer_s ngx_http_upstream_rr_peer_t; |
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18 |
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19 struct ngx_http_upstream_rr_peer_s { |
884 | 20 struct sockaddr *sockaddr; |
21 socklen_t socklen; | |
22 ngx_str_t name; | |
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23 ngx_str_t server; |
884 | 24 |
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25 ngx_int_t current_weight; |
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26 ngx_int_t effective_weight; |
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27 ngx_int_t weight; |
884 | 28 |
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29 ngx_uint_t conns; |
6705 | 30 ngx_uint_t max_conns; |
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31 |
884 | 32 ngx_uint_t fails; |
33 time_t accessed; | |
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34 time_t checked; |
884 | 35 |
36 ngx_uint_t max_fails; | |
37 time_t fail_timeout; | |
38 | |
39 ngx_uint_t down; /* unsigned down:1; */ | |
40 | |
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41 #if (NGX_HTTP_SSL) |
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42 void *ssl_session; |
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43 int ssl_session_len; |
884 | 44 #endif |
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45 |
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46 #if (NGX_HTTP_UPSTREAM_ZONE) |
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47 ngx_atomic_t lock; |
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48 #endif |
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49 |
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50 ngx_http_upstream_rr_peer_t *next; |
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51 }; |
884 | 52 |
53 | |
1378 | 54 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t; |
55 | |
56 struct ngx_http_upstream_rr_peers_s { | |
884 | 57 ngx_uint_t number; |
58 | |
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59 #if (NGX_HTTP_UPSTREAM_ZONE) |
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60 ngx_slab_pool_t *shpool; |
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61 ngx_atomic_t rwlock; |
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62 ngx_http_upstream_rr_peers_t *zone_next; |
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63 #endif |
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64 |
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65 ngx_uint_t total_weight; |
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66 |
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67 unsigned single:1; |
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68 unsigned weighted:1; |
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69 |
884 | 70 ngx_str_t *name; |
71 | |
1378 | 72 ngx_http_upstream_rr_peers_t *next; |
73 | |
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74 ngx_http_upstream_rr_peer_t *peer; |
1378 | 75 }; |
884 | 76 |
77 | |
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78 #if (NGX_HTTP_UPSTREAM_ZONE) |
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79 |
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80 #define ngx_http_upstream_rr_peers_rlock(peers) \ |
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81 \ |
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82 if (peers->shpool) { \ |
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83 ngx_rwlock_rlock(&peers->rwlock); \ |
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84 } |
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85 |
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86 #define ngx_http_upstream_rr_peers_wlock(peers) \ |
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87 \ |
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88 if (peers->shpool) { \ |
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89 ngx_rwlock_wlock(&peers->rwlock); \ |
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90 } |
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91 |
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92 #define ngx_http_upstream_rr_peers_unlock(peers) \ |
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93 \ |
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94 if (peers->shpool) { \ |
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95 ngx_rwlock_unlock(&peers->rwlock); \ |
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96 } |
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97 |
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98 |
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99 #define ngx_http_upstream_rr_peer_lock(peers, peer) \ |
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100 \ |
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101 if (peers->shpool) { \ |
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102 ngx_rwlock_wlock(&peer->lock); \ |
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103 } |
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104 |
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105 #define ngx_http_upstream_rr_peer_unlock(peers, peer) \ |
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106 \ |
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107 if (peers->shpool) { \ |
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108 ngx_rwlock_unlock(&peer->lock); \ |
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109 } |
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110 |
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111 #else |
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112 |
6102 | 113 #define ngx_http_upstream_rr_peers_rlock(peers) |
114 #define ngx_http_upstream_rr_peers_wlock(peers) | |
115 #define ngx_http_upstream_rr_peers_unlock(peers) | |
116 #define ngx_http_upstream_rr_peer_lock(peers, peer) | |
117 #define ngx_http_upstream_rr_peer_unlock(peers, peer) | |
118 | |
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119 #endif |
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120 |
6102 | 121 |
884 | 122 typedef struct { |
123 ngx_http_upstream_rr_peers_t *peers; | |
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124 ngx_http_upstream_rr_peer_t *current; |
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125 uintptr_t *tried; |
884 | 126 uintptr_t data; |
127 } ngx_http_upstream_rr_peer_data_t; | |
128 | |
129 | |
130 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf, | |
131 ngx_http_upstream_srv_conf_t *us); | |
132 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r, | |
133 ngx_http_upstream_srv_conf_t *us); | |
1658 | 134 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r, |
135 ngx_http_upstream_resolved_t *ur); | |
884 | 136 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, |
137 void *data); | |
138 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, | |
139 void *data, ngx_uint_t state); | |
140 | |
141 #if (NGX_HTTP_SSL) | |
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142 ngx_int_t |
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143 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc, |
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144 void *data); |
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145 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc, |
884 | 146 void *data); |
147 #endif | |
148 | |
149 | |
150 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */ |