sl@0: /*
sl@0:  * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org>
sl@0:  *
sl@0:  * Permission to use, copy, modify, and distribute this software for any
sl@0:  * purpose with or without fee is hereby granted, provided that the above
sl@0:  * copyright notice and this permission notice appear in all copies.
sl@0:  *
sl@0:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
sl@0:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
sl@0:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
sl@0:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
sl@0:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
sl@0:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
sl@0:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
sl@0:  * * Portions Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 
sl@0:  */
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: #include <sys/time.h>
sl@0: #include <sys/timespec.h>
sl@0: #include <sys/select.h>
sl@0: #include <errno.h>
sl@0: 
sl@0: //#if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)
sl@0: 
sl@0: EXPORT_C 
sl@0: int nanosleep(const struct timespec *req, struct timespec *rem)
sl@0: {
sl@0:         int rc, saverrno;
sl@0:         extern int errno;
sl@0:         struct timeval tstart, tstop, tremain, time2wait;
sl@0: 
sl@0:         if(!req)
sl@0:         	{ 
sl@0:         		return 0 ;
sl@0:         	} 	 
sl@0:         TIMESPEC_TO_TIMEVAL(&time2wait, req);
sl@0:         (void) gettimeofday(&tstart, NULL);
sl@0:         rc = select(0, NULL, NULL, NULL, &time2wait);
sl@0:         if (rc == -1) {
sl@0:                 saverrno = errno;
sl@0:                 (void) gettimeofday (&tstop, NULL);
sl@0:                 errno = saverrno;
sl@0:                 tremain.tv_sec = time2wait.tv_sec -
sl@0:                         (tstop.tv_sec - tstart.tv_sec);
sl@0:                 tremain.tv_usec = time2wait.tv_usec -
sl@0:                         (tstop.tv_usec - tstart.tv_usec);
sl@0:                 tremain.tv_sec += tremain.tv_usec / 1000000L;
sl@0:                 tremain.tv_usec %= 1000000L;
sl@0:         } else {
sl@0:                 tremain.tv_sec = 0;
sl@0:                 tremain.tv_usec = 0;
sl@0:         }
sl@0:         if(rem)
sl@0:         	{
sl@0:         	TIMEVAL_TO_TIMESPEC(&tremain, rem);
sl@0:         	}
sl@0: 
sl@0:         return(rc);
sl@0: }
sl@0: //#endif