release/src/router/nginx/src/http/ngx_http_upstream_round_robin.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   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;
  21
  22     ngx_int_t                       current_weight;
  23     ngx_int_t                       effective_weight;
  24     ngx_int_t                       weight;
  25
  26     ngx_uint_t                      fails;
  27     time_t                          accessed;
  28     time_t                          checked;
  29
  30     ngx_uint_t                      max_fails;
  31     time_t                          fail_timeout;
  32
  33     ngx_uint_t                      down;          /* unsigned  down:1; */
  34
  35 #if (NGX_HTTP_SSL)
  36     ngx_ssl_session_t              *ssl_session;   /* local to a process */
  37 #endif
  38 } ngx_http_upstream_rr_peer_t;
  39
  40
  41 typedef struct ngx_http_upstream_rr_peers_s  ngx_http_upstream_rr_peers_t;
  42
  43 struct ngx_http_upstream_rr_peers_s {
  44     ngx_uint_t                      number;
  45
  46  /* ngx_mutex_t                    *mutex; */
  47
  48     ngx_uint_t                      total_weight;
  49
  50     unsigned                        single:1;
  51     unsigned                        weighted:1;
  52
  53     ngx_str_t                      *name;
  54
  55     ngx_http_upstream_rr_peers_t   *next;
  56
  57     ngx_http_upstream_rr_peer_t     peer[1];
  58 };
  59
  60
  61 typedef struct {
  62     ngx_http_upstream_rr_peers_t   *peers;
  63     ngx_uint_t                      current;
  64     uintptr_t                      *tried;
  65     uintptr_t                       data;
  66 } ngx_http_upstream_rr_peer_data_t;
  67
  68
  69 ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
  70     ngx_http_upstream_srv_conf_t *us);
  71 ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
  72     ngx_http_upstream_srv_conf_t *us);
  73 ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
  74     ngx_http_upstream_resolved_t *ur);
  75 ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
  76     void *data);
  77 void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
  78     void *data, ngx_uint_t state);
  79
  80 #if (NGX_HTTP_SSL)
  81 ngx_int_t
  82     ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc,
  83     void *data);
  84 void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc,
  85     void *data);
  86 #endif
  87
  88
  89 #endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */