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138 lines
4.7 KiB
138 lines
4.7 KiB
/*
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* include/haproxy/peers-t.h
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* This file defines everything related to peers.
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*
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* Copyright 2010 EXCELIANCE, Emeric Brun <ebrun@exceliance.fr>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _HAPROXY_PEERS_T_H
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#define _HAPROXY_PEERS_T_H
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <import/eb32tree.h>
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#include <haproxy/api-t.h>
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#include <haproxy/dict-t.h>
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#include <haproxy/thread-t.h>
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struct shared_table {
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struct stktable *table; /* stick table to sync */
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int local_id;
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int remote_id;
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int flags;
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uint64_t remote_data;
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unsigned int last_acked;
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unsigned int last_pushed;
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unsigned int last_get;
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unsigned int teaching_origin;
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unsigned int update;
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struct shared_table *next; /* next shared table in list */
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};
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struct peer {
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int local; /* proxy state */
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__decl_thread(HA_SPINLOCK_T lock); /* lock used to handle this peer section */
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char *id;
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struct {
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const char *file; /* file where the section appears */
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int line; /* line where the section appears */
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} conf; /* config information */
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time_t last_change;
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struct sockaddr_storage addr; /* peer address */
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struct protocol *proto; /* peer address protocol */
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struct xprt_ops *xprt; /* peer socket operations at transport layer */
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void *sock_init_arg; /* socket operations's opaque init argument if needed */
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unsigned int flags; /* peer session flags */
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unsigned int statuscode; /* current/last session status code */
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unsigned int reconnect; /* next connect timer */
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unsigned int heartbeat; /* next heartbeat timer */
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unsigned int confirm; /* confirm message counter */
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unsigned int last_hdshk; /* Date of the last handshake. */
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uint32_t rx_hbt; /* received heartbeats counter */
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uint32_t tx_hbt; /* transmitted heartbeats counter */
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uint32_t no_hbt; /* no received heartbeat counter */
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uint32_t new_conn; /* new connection after reconnection timeout expiration counter */
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uint32_t proto_err; /* protocol errors counter */
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uint32_t coll; /* connection collisions counter */
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struct appctx *appctx; /* the appctx running it */
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struct shared_table *remote_table;
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struct shared_table *last_local_table;
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struct shared_table *tables;
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struct server *srv;
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struct dcache *dcache; /* dictionary cache */
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struct peer *next; /* next peer in the list */
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};
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struct peers {
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char *id; /* peer section name */
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struct task *sync_task; /* main sync task */
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struct sig_handler *sighandler; /* signal handler */
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struct peer *remote; /* remote peers list */
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struct peer *local; /* local peer list */
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struct proxy *peers_fe; /* peer frontend */
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struct {
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const char *file; /* file where the section appears */
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int line; /* line where the section appears */
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} conf; /* config information */
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time_t last_change;
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struct peers *next; /* next peer section */
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unsigned int flags; /* current peers section resync state */
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unsigned int resync_timeout; /* resync timeout timer */
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int count; /* total of peers */
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int disabled; /* peers proxy disabled if >0 */
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};
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/* LRU cache for dictionaies */
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struct dcache_tx {
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/* The last recently used key */
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unsigned int lru_key;
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/* An array of entries to store pointers to dictionary entries. */
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struct ebpt_node *entries;
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/* The previous lookup result. */
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struct ebpt_node *prev_lookup;
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/* ebtree to store the previous entries. */
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struct eb_root cached_entries;
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};
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struct dcache_rx {
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unsigned int id;
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struct dict_entry *de;
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};
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struct dcache_tx_entry {
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unsigned int id;
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struct ebpt_node entry;
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};
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/* stick-table data type cache */
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struct dcache {
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/* Cache used upon transmission */
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struct dcache_tx *tx;
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/* Cache used upon receipt */
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struct dcache_rx *rx;
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/* Maximum number of entries in this cache */
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size_t max_entries;
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};
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#endif /* _HAPROXY_PEERS_T_H */
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