/*

  * 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