/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

/* 

   ransleep.c: sleep for some time period specified in milliseconds

               optionally choose a random time up to the maximum time specified.

   Description: Useful for delays between retries and for perturbing the

	        start times of tools which might cause resource starvation 

		if they all execute at exactly the same time.

*/

#include "../config.h"

#include <unistd.h>

#include <stdlib.h>

#include <stdio.h>

// OS specific headers

#ifdef HOST_WIN

#include <windows.h>

#else

#include <sys/types.h>

#include <sys/select.h>

#endif

int main(int argc, char *argv[])

{

	srand(getpid());

	int millisecs=0;

	if (argc != 2)

	{

		fprintf(stderr,"Must supply numeric argument - maximum milliseconds to sleep\n");

		exit(1);

	}

	millisecs = atoi(argv[1]);

	if (millisecs <= 0 )

	{

		fprintf(stderr,"Must supply numeric argument > 0 - maximum milliseconds to sleep\n");

		exit(1);

	}

	millisecs = rand() % millisecs;

	fprintf(stderr,"random sleep for %d milliseconds\n", millisecs);

	#ifndef HAS_MILLISECONDSLEEP

	struct timeval wtime;

	wtime.tv_sec=millisecs/1000;

	wtime.tv_usec=(millisecs % 1000) * 1000;

	select(0,NULL,NULL,

                  NULL, &wtime);

	#else

	Sleep(millisecs);

	#endif

	return 0;

}