Mercurial > hg > nginx-quic
annotate src/http/ngx_http_upstream_round_robin.h @ 5923:2c10db908b8c
SPDY: push pending data while closing a stream as with keepalive.
This helps to avoid delays in sending the last chunk of data because
of bad interaction between Nagle's algorithm on nginx side and
delayed ACK on the client side.
Delays could also be caused by TCP_CORK/TCP_NOPUSH if SPDY was
working without SSL and sendfile() was used.
| author | Valentin Bartenev <vbart@nginx.com> |
|---|---|
| date | Fri, 21 Nov 2014 22:51:49 +0300 |
| parents | efc84a5723b3 |
| children | 94ce52db3367 |
| rev | line source |
|---|---|
| 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 | |
| 17 typedef struct { | |
| 18 struct sockaddr *sockaddr; | |
| 19 socklen_t socklen; | |
| 20 ngx_str_t name; | |
|
5717
efc84a5723b3
Upstream: generic hash module.
Roman Arutyunyan <arut@nginx.com>
parents:
5136
diff
changeset
|
21 ngx_str_t server; |
| 884 | 22 |
|
1344
8f5b5641966c
fair upstream weight balancer
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
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23 ngx_int_t current_weight; |
|
4621
c90801720a0c
Upstream: smooth weighted round-robin balancing.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
24 ngx_int_t effective_weight; |
|
1344
8f5b5641966c
fair upstream weight balancer
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
25 ngx_int_t weight; |
| 884 | 26 |
| 27 ngx_uint_t fails; | |
| 28 time_t accessed; | |
|
4207
4fc91bae6f83
Better recheck of dead upstream servers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
3264
diff
changeset
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29 time_t checked; |
| 884 | 30 |
| 31 ngx_uint_t max_fails; | |
| 32 time_t fail_timeout; | |
| 33 | |
| 34 ngx_uint_t down; /* unsigned down:1; */ | |
| 35 | |
|
1344
8f5b5641966c
fair upstream weight balancer
Igor Sysoev <igor@sysoev.ru>
parents:
1284
diff
changeset
|
36 #if (NGX_HTTP_SSL) |
|
1284
be2b895d31e0
fix segfault when session was freed twice
Igor Sysoev <igor@sysoev.ru>
parents:
954
diff
changeset
|
37 ngx_ssl_session_t *ssl_session; /* local to a process */ |
| 884 | 38 #endif |
| 39 } ngx_http_upstream_rr_peer_t; | |
| 40 | |
| 41 | |
| 1378 | 42 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t; |
| 43 | |
| 44 struct ngx_http_upstream_rr_peers_s { | |
| 884 | 45 ngx_uint_t number; |
| 46 | |
| 47 /* ngx_mutex_t *mutex; */ | |
| 48 | |
|
4655
382c523d253a
Upstream: weights support in ip_hash balancer.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4621
diff
changeset
|
49 ngx_uint_t total_weight; |
|
382c523d253a
Upstream: weights support in ip_hash balancer.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4621
diff
changeset
|
50 |
|
382c523d253a
Upstream: weights support in ip_hash balancer.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4621
diff
changeset
|
51 unsigned single:1; |
|
382c523d253a
Upstream: weights support in ip_hash balancer.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4621
diff
changeset
|
52 unsigned weighted:1; |
|
382c523d253a
Upstream: weights support in ip_hash balancer.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4621
diff
changeset
|
53 |
| 884 | 54 ngx_str_t *name; |
| 55 | |
| 1378 | 56 ngx_http_upstream_rr_peers_t *next; |
| 57 | |
| 884 | 58 ngx_http_upstream_rr_peer_t peer[1]; |
| 1378 | 59 }; |
| 884 | 60 |
| 61 | |
| 62 typedef struct { | |
| 63 ngx_http_upstream_rr_peers_t *peers; | |
| 64 ngx_uint_t current; | |
|
954
f16424aa5d89
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
65 uintptr_t *tried; |
| 884 | 66 uintptr_t data; |
| 67 } ngx_http_upstream_rr_peer_data_t; | |
| 68 | |
| 69 | |
| 70 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf, | |
| 71 ngx_http_upstream_srv_conf_t *us); | |
| 72 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r, | |
| 73 ngx_http_upstream_srv_conf_t *us); | |
| 1658 | 74 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r, |
| 75 ngx_http_upstream_resolved_t *ur); | |
| 884 | 76 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, |
| 77 void *data); | |
| 78 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, | |
| 79 void *data, ngx_uint_t state); | |
| 80 | |
| 81 #if (NGX_HTTP_SSL) | |
|
1284
be2b895d31e0
fix segfault when session was freed twice
Igor Sysoev <igor@sysoev.ru>
parents:
954
diff
changeset
|
82 ngx_int_t |
|
be2b895d31e0
fix segfault when session was freed twice
Igor Sysoev <igor@sysoev.ru>
parents:
954
diff
changeset
|
83 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc, |
|
be2b895d31e0
fix segfault when session was freed twice
Igor Sysoev <igor@sysoev.ru>
parents:
954
diff
changeset
|
84 void *data); |
|
be2b895d31e0
fix segfault when session was freed twice
Igor Sysoev <igor@sysoev.ru>
parents:
954
diff
changeset
|
85 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc, |
| 884 | 86 void *data); |
| 87 #endif | |
| 88 | |
| 89 | |
| 90 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */ |