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/* =======================================================================
* Copyright 1996, Jan D. Wolter and Steven R. Weiss, 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.
*
* 3. The names of the authors must not be used to endorse or
* promote products derived from this software without prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
* EXPRESSED 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 AUTHORS
* 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 "pwauth.h"
/* SNOOZE - Do a serialized sleep of the given number of seconds. This means,
* wait till no other pwauth processes are in their sleeps, and then sleep
* for the number of seconds given. Note that a snooze(0) may lead to some
* sleep time, if other pwauth processes are in sleeps.
*/
snooze(int seconds)
{
#ifdef SLEEP_LOCK
int slfd;
#endif
/* Lock the sleep-lock file to serialize our sleeps */
#ifdef SLEEP_LOCK
if ((slfd= open(SLEEP_LOCK,O_CREAT|O_RDONLY,0644)) >= 0)
flock(slfd,LOCK_EX);
#endif
sleep(seconds);
/* Release sleep-lock file */
#ifdef SLEEP_LOCK
/*flock(slfd,LOCK_UN);*/
close(slfd);
#endif
}
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