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/*
* Copyright 2011-2015 Samy Al Bahra.
* Copyright 2011 David Joseph.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <ck_bytelock.h>
#include <ck_spinlock.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include "../../common.h"
#ifndef STEPS
#define STEPS 30000000
#endif
LOCK_DEFINE;
int
main(void)
{
CK_CC_UNUSED unsigned int nthr = 1;
#ifdef LOCK_INIT
LOCK_INIT;
#endif
#ifdef LOCK_STATE
LOCK_STATE;
#endif
uint64_t s_b, e_b, i;
CK_CC_UNUSED int core = 0;
s_b = rdtsc();
for (i = 0; i < STEPS; ++i) {
#ifdef LOCK
LOCK;
UNLOCK;
LOCK;
UNLOCK;
LOCK;
UNLOCK;
LOCK;
UNLOCK;
#endif
}
e_b = rdtsc();
printf("%15" PRIu64 "\n", (e_b - s_b) / 4 / STEPS);
return (0);
}
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