diff options
Diffstat (limited to 'app/nginx/src/http/ngx_http_upstream_round_robin.h')
| -rw-r--r-- | app/nginx/src/http/ngx_http_upstream_round_robin.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/app/nginx/src/http/ngx_http_upstream_round_robin.h b/app/nginx/src/http/ngx_http_upstream_round_robin.h new file mode 100644 index 0000000..45f258d --- /dev/null +++ b/app/nginx/src/http/ngx_http_upstream_round_robin.h @@ -0,0 +1,156 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ +#define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> + + +typedef struct ngx_http_upstream_rr_peer_s ngx_http_upstream_rr_peer_t; + +struct ngx_http_upstream_rr_peer_s { + struct sockaddr *sockaddr; + socklen_t socklen; + ngx_str_t name; + ngx_str_t server; + + ngx_int_t current_weight; + ngx_int_t effective_weight; + ngx_int_t weight; + + ngx_uint_t conns; + ngx_uint_t max_conns; + + ngx_uint_t fails; + time_t accessed; + time_t checked; + + ngx_uint_t max_fails; + time_t fail_timeout; + ngx_msec_t slow_start; + ngx_msec_t start_time; + + ngx_uint_t down; + +#if (NGX_HTTP_SSL || NGX_COMPAT) + void *ssl_session; + int ssl_session_len; +#endif + +#if (NGX_HTTP_UPSTREAM_ZONE) + ngx_atomic_t lock; +#endif + + ngx_http_upstream_rr_peer_t *next; + + NGX_COMPAT_BEGIN(32) + NGX_COMPAT_END +}; + + +typedef struct ngx_http_upstream_rr_peers_s ngx_http_upstream_rr_peers_t; + +struct ngx_http_upstream_rr_peers_s { + ngx_uint_t number; + +#if (NGX_HTTP_UPSTREAM_ZONE) + ngx_slab_pool_t *shpool; + ngx_atomic_t rwlock; + ngx_http_upstream_rr_peers_t *zone_next; +#endif + + ngx_uint_t total_weight; + + unsigned single:1; + unsigned weighted:1; + + ngx_str_t *name; + + ngx_http_upstream_rr_peers_t *next; + + ngx_http_upstream_rr_peer_t *peer; +}; + + +#if (NGX_HTTP_UPSTREAM_ZONE) + +#define ngx_http_upstream_rr_peers_rlock(peers) \ + \ + if (peers->shpool) { \ + ngx_rwlock_rlock(&peers->rwlock); \ + } + +#define ngx_http_upstream_rr_peers_wlock(peers) \ + \ + if (peers->shpool) { \ + ngx_rwlock_wlock(&peers->rwlock); \ + } + +#define ngx_http_upstream_rr_peers_unlock(peers) \ + \ + if (peers->shpool) { \ + ngx_rwlock_unlock(&peers->rwlock); \ + } + + +#define ngx_http_upstream_rr_peer_lock(peers, peer) \ + \ + if (peers->shpool) { \ + ngx_rwlock_wlock(&peer->lock); \ + } + +#define ngx_http_upstream_rr_peer_unlock(peers, peer) \ + \ + if (peers->shpool) { \ + ngx_rwlock_unlock(&peer->lock); \ + } + +#else + +#define ngx_http_upstream_rr_peers_rlock(peers) +#define ngx_http_upstream_rr_peers_wlock(peers) +#define ngx_http_upstream_rr_peers_unlock(peers) +#define ngx_http_upstream_rr_peer_lock(peers, peer) +#define ngx_http_upstream_rr_peer_unlock(peers, peer) + +#endif + + +typedef struct { + ngx_uint_t config; + ngx_http_upstream_rr_peers_t *peers; + ngx_http_upstream_rr_peer_t *current; + uintptr_t *tried; + uintptr_t data; +} ngx_http_upstream_rr_peer_data_t; + + +ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf, + ngx_http_upstream_srv_conf_t *us); +ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r, + ngx_http_upstream_srv_conf_t *us); +ngx_int_t ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r, + ngx_http_upstream_resolved_t *ur); +ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, + void *data); +void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc, + void *data, ngx_uint_t state); + +#if (NGX_HTTP_SSL) +ngx_int_t + ngx_http_upstream_set_round_robin_peer_session(ngx_peer_connection_t *pc, + void *data); +void ngx_http_upstream_save_round_robin_peer_session(ngx_peer_connection_t *pc, + void *data); +#endif + + +#endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */ |