/*
* Soft: Keepalived is a failover program for the LVS project
* <www.linuxvirtualserver.org>. It monitor & manipulate
* a loadbalanced server pool using multi-layer checks.
*
* Part: bitops.h include file.
*
* Author: Alexandre Cassen, <acassen@linux-vs.org>
*
* This program 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 General Public License for more details.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Copyright (C) 2001-2017 Alexandre Cassen, <acassen@gmail.com>
*/
#ifndef _BITOPS_H
#define _BITOPS_H
#include "config.h"
#include <limits.h>
#include <stdbool.h>
/* Defines */
#define BIT_PER_LONG (CHAR_BIT * sizeof(unsigned long))
#define BIT_MASK(idx) (1UL << ((idx) % BIT_PER_LONG))
#define BIT_WORD(idx) ((idx) / BIT_PER_LONG)
/* Helpers */
static inline void __set_bit(unsigned idx, unsigned long *bmap)
{
bmap[BIT_WORD(idx)] |= BIT_MASK(idx);
}
static inline void __clear_bit(unsigned idx, unsigned long *bmap)
{
bmap[BIT_WORD(idx)] &= ~BIT_MASK(idx);
}
static inline bool __test_bit(unsigned idx, const unsigned long *bmap)
{
return !!(bmap[BIT_WORD(idx)] & BIT_MASK(idx));
}
/* Bits */
enum global_bits {
LOG_CONSOLE_BIT,
NO_SYSLOG_BIT,
DONT_FORK_BIT,
DUMP_CONF_BIT,
#ifdef _WITH_VRRP_
DONT_RELEASE_VRRP_BIT,
RELEASE_VIPS_BIT,
#endif
#ifdef _WITH_LVS_
DONT_RELEASE_IPVS_BIT,
#endif
LOG_DETAIL_BIT,
LOG_EXTRA_DETAIL_BIT,
DONT_RESPAWN_BIT,
#ifdef _MEM_CHECK_
MEM_ERR_DETECT_BIT,
#ifdef _MEM_CHECK_LOG_
MEM_CHECK_LOG_BIT,
#endif
#endif
#ifdef _WITH_LVS_
LOG_ADDRESS_CHANGES,
#endif
CONFIG_TEST_BIT,
};
#endif