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/*
* include/proto/backend.h
* Functions prototypes for the backend.
*
* Copyright (C) 2000-2012 Willy Tarreau - w@1wt.eu
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _PROTO_BACKEND_H
#define _PROTO_BACKEND_H
#include <common/config.h>
#include <types/backend.h>
#include <types/proxy.h>
#include <types/server.h>
#include <types/session.h>
int assign_server(struct session *s);
int assign_server_address(struct session *s);
int assign_server_and_queue(struct session *s);
int connect_server(struct session *s);
int srv_redispatch_connect(struct session *t);
const char *backend_lb_algo_str(int algo);
int backend_parse_balance(const char **args, char *err,
int errlen, struct proxy *curproxy);
int be_downtime(struct proxy *px);
void recount_servers(struct proxy *px);
void update_backend_weight(struct proxy *px);
struct server *get_server_sh(struct proxy *px, const char *addr, int len);
struct server *get_server_uh(struct proxy *px, char *uri, int uri_len);
/* This function returns non-zero if a server with the given weight and state
* is usable for LB, otherwise zero.
*/
static inline int srv_is_usable(int state, int weight)
{
if (!weight)
return 0;
if (state & (SRV_GOINGDOWN | SRV_MAINTAIN))
return 0;
if (!(state & SRV_RUNNING))
return 0;
return 1;
}
#endif /* _PROTO_BACKEND_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/