annotate src/http/ngx_http_upstream_round_robin.h @ 644:6f21ae02fb01 NGINX_1_1_6

nginx 1.1.6 *) Change in internal API: now module context data are cleared while internal redirect to named location. Requested by Yichun Zhang. *) Change: if a server in an upstream failed, only one request will be sent to it after fail_timeout; the server will be considered alive if it will successfully respond to the request. *) Change: now the 0x7F-0x1F characters are escaped as \xXX in an access_log. *) Feature: "proxy/fastcgi/scgi/uwsgi_ignore_headers" directives support the following additional values: X-Accel-Limit-Rate, X-Accel-Buffering, X-Accel-Charset. *) Feature: decrease of memory consumption if SSL is used. *) Bugfix: some UTF-8 characters were processed incorrectly. Thanks to Alexey Kuts. *) Bugfix: the ngx_http_rewrite_module directives specified at "server" level were executed twice if no matching locations were defined. *) Bugfix: a socket leak might occurred if "aio sendfile" was used. *) Bugfix: connections with fast clients might be closed after send_timeout if file AIO was used. *) Bugfix: in the ngx_http_autoindex_module. *) Bugfix: the module ngx_http_mp4_module did not support seeking on 32-bit platforms.
author Igor Sysoev <http://sysoev.ru>
date Mon, 17 Oct 2011 00:00:00 +0400
parents c04fa65fe604
children d0f7a625f27c
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
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8 #define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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13 #include <ngx_http.h>
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16 typedef struct {
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17 struct sockaddr *sockaddr;
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18 socklen_t socklen;
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19 ngx_str_t name;
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21 ngx_int_t current_weight;
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22 ngx_int_t weight;
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24 ngx_uint_t fails;
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25 time_t accessed;
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26 time_t checked;
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28 ngx_uint_t max_fails;
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29 time_t fail_timeout;
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31 ngx_uint_t down; /* unsigned down:1; */
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33 #if (NGX_HTTP_SSL)
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34 ngx_ssl_session_t *ssl_session; /* local to a process */
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35 #endif
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36 } ngx_http_upstream_rr_peer_t;
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39 typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t;
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41 struct ngx_http_upstream_rr_peers_s {
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42 ngx_uint_t single; /* unsigned single:1; */
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43 ngx_uint_t number;
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44 ngx_uint_t last_cached;
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46 /* ngx_mutex_t *mutex; */
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47 ngx_connection_t **cached;
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49 ngx_str_t *name;
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51 ngx_http_upstream_rr_peers_t *next;
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53 ngx_http_upstream_rr_peer_t peer[1];
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54 };
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57 typedef struct {
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58 ngx_http_upstream_rr_peers_t *peers;
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59 ngx_uint_t current;
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60 uintptr_t *tried;
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61 uintptr_t data;
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62 } ngx_http_upstream_rr_peer_data_t;
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65 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
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66 ngx_http_upstream_srv_conf_t *us);
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67 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
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68 ngx_http_upstream_srv_conf_t *us);
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69 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
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70 ngx_http_upstream_resolved_t *ur);
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71 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
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72 void *data);
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73 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
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74 void *data, ngx_uint_t state);
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76 #if (NGX_HTTP_SSL)
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77 ngx_int_t
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78 ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc,
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79 void *data);
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80 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc,
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81 void *data);
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82 #endif
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85 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */