/*

 * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org>

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 * * Portions Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

 */

#include <sys/time.h>

#include <sys/timespec.h>

#include <sys/select.h>

#include <errno.h>

//#if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)

EXPORT_C 

int nanosleep(const struct timespec *req, struct timespec *rem)

{

        int rc, saverrno;

        extern int errno;

        struct timeval tstart, tstop, tremain, time2wait;

        if(!req)

        	{ 

        		return 0 ;

        	} 	 

        TIMESPEC_TO_TIMEVAL(&time2wait, req);

        (void) gettimeofday(&tstart, NULL);

        rc = select(0, NULL, NULL, NULL, &time2wait);

        if (rc == -1) {

                saverrno = errno;

                (void) gettimeofday (&tstop, NULL);

                errno = saverrno;

                tremain.tv_sec = time2wait.tv_sec -

                        (tstop.tv_sec - tstart.tv_sec);

                tremain.tv_usec = time2wait.tv_usec -

                        (tstop.tv_usec - tstart.tv_usec);

                tremain.tv_sec += tremain.tv_usec / 1000000L;

                tremain.tv_usec %= 1000000L;

        } else {

                tremain.tv_sec = 0;

                tremain.tv_usec = 0;

        }

        if(rem)

        	{

        	TIMEVAL_TO_TIMESPEC(&tremain, rem);

        	}

        return(rc);

}

//#endif