Mercurial > hg > nginx
annotate src/http/ngx_http_upstream_round_robin.h @ 7175:56923e8e01a5
Improved the capabilities feature detection.
Previously included file sys/capability.h mentioned in capset(2) man page,
belongs to the libcap-dev package, which may not be installed on some Linux
systems when compiling nginx. This prevented the capabilities feature from
being detected and compiled on that systems.
Now linux/capability.h system header is included instead. Since capset()
declaration is located in sys/capability.h, now capset() syscall is defined
explicitly in code using the SYS_capset constant, similarly to other
Linux-specific features in nginx.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Mon, 18 Dec 2017 21:09:39 +0300 |
parents | e38e9c50a40e |
children | 90cc7194e993 |
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; | |
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38 ngx_msec_t slow_start; |
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39 ngx_msec_t start_time; |
884 | 40 |
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41 ngx_uint_t down; |
884 | 42 |
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43 #if (NGX_HTTP_SSL || NGX_COMPAT) |
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44 void *ssl_session; |
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45 int ssl_session_len; |
884 | 46 #endif |
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47 |
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48 #if (NGX_HTTP_UPSTREAM_ZONE) |
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49 ngx_atomic_t lock; |
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50 #endif |
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51 |
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52 ngx_http_upstream_rr_peer_t *next; |
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53 |
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54 NGX_COMPAT_BEGIN(32) |
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55 NGX_COMPAT_END |
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56 }; |
884 | 57 |
58 | |
1378 | 59 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t; |
60 | |
61 struct ngx_http_upstream_rr_peers_s { | |
884 | 62 ngx_uint_t number; |
63 | |
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64 #if (NGX_HTTP_UPSTREAM_ZONE) |
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65 ngx_slab_pool_t *shpool; |
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66 ngx_atomic_t rwlock; |
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67 ngx_http_upstream_rr_peers_t *zone_next; |
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68 #endif |
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69 |
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70 ngx_uint_t total_weight; |
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71 |
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72 unsigned single:1; |
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73 unsigned weighted:1; |
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74 |
884 | 75 ngx_str_t *name; |
76 | |
1378 | 77 ngx_http_upstream_rr_peers_t *next; |
78 | |
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79 ngx_http_upstream_rr_peer_t *peer; |
1378 | 80 }; |
884 | 81 |
82 | |
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83 #if (NGX_HTTP_UPSTREAM_ZONE) |
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84 |
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85 #define ngx_http_upstream_rr_peers_rlock(peers) \ |
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86 \ |
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87 if (peers->shpool) { \ |
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88 ngx_rwlock_rlock(&peers->rwlock); \ |
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89 } |
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90 |
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91 #define ngx_http_upstream_rr_peers_wlock(peers) \ |
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92 \ |
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93 if (peers->shpool) { \ |
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94 ngx_rwlock_wlock(&peers->rwlock); \ |
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95 } |
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96 |
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97 #define ngx_http_upstream_rr_peers_unlock(peers) \ |
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98 \ |
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99 if (peers->shpool) { \ |
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100 ngx_rwlock_unlock(&peers->rwlock); \ |
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101 } |
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102 |
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103 |
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104 #define ngx_http_upstream_rr_peer_lock(peers, peer) \ |
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105 \ |
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106 if (peers->shpool) { \ |
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107 ngx_rwlock_wlock(&peer->lock); \ |
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108 } |
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109 |
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110 #define ngx_http_upstream_rr_peer_unlock(peers, peer) \ |
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111 \ |
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112 if (peers->shpool) { \ |
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113 ngx_rwlock_unlock(&peer->lock); \ |
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114 } |
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115 |
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116 #else |
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117 |
6102 | 118 #define ngx_http_upstream_rr_peers_rlock(peers) |
119 #define ngx_http_upstream_rr_peers_wlock(peers) | |
120 #define ngx_http_upstream_rr_peers_unlock(peers) | |
121 #define ngx_http_upstream_rr_peer_lock(peers, peer) | |
122 #define ngx_http_upstream_rr_peer_unlock(peers, peer) | |
123 | |
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124 #endif |
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125 |
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884 | 127 typedef struct { |
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128 ngx_uint_t config; |
884 | 129 ngx_http_upstream_rr_peers_t *peers; |
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130 ngx_http_upstream_rr_peer_t *current; |
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131 uintptr_t *tried; |
884 | 132 uintptr_t data; |
133 } ngx_http_upstream_rr_peer_data_t; | |
134 | |
135 | |
136 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf, | |
137 ngx_http_upstream_srv_conf_t *us); | |
138 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r, | |
139 ngx_http_upstream_srv_conf_t *us); | |
1658 | 140 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r, |
141 ngx_http_upstream_resolved_t *ur); | |
884 | 142 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, |
143 void *data); | |
144 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, | |
145 void *data, ngx_uint_t state); | |
146 | |
147 #if (NGX_HTTP_SSL) | |
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148 ngx_int_t |
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149 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc, |
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150 void *data); |
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151 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc, |
884 | 152 void *data); |
153 #endif | |
154 | |
155 | |
156 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */ |