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/*
* include/types/lb_fwrr.h
* Types for Fast Weighted Round Robin load balancing algorithm.
*
* Copyright (C) 2000-2009 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 _TYPES_LB_FWRR_H
#define _TYPES_LB_FWRR_H
#include <common/config.h>
#include <ebtree.h>
/* This structure is used to apply fast weighted round robin on a server group */
struct fwrr_group {
struct eb_root curr; /* tree for servers in "current" time range */
struct eb_root t0, t1; /* "init" and "next" servers */
struct eb_root *init; /* servers waiting to be placed */
struct eb_root *next; /* servers to be placed at next run */
int curr_pos; /* current position in the tree */
int curr_weight; /* total weight of the current time range */
int next_weight; /* total weight of the next time range */
};
struct lb_fwrr {
struct fwrr_group act; /* weighted round robin on the active servers */
struct fwrr_group bck; /* weighted round robin on the backup servers */
};
#endif /* _TYPES_LB_FWRR_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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