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