/* * Copyright (c) 2009-2010 Todd C. Miller <Todd.Miller@courtesan.com> * * 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. */ #include <config.h> #include <sys/types.h> #include <sys/time.h> #ifdef HAVE_SYS_SELECT_H #include <sys/select.h> #endif /* HAVE_SYS_SELECT_H */ #if TIME_WITH_SYS_TIME # include <time.h> #endif #ifndef HAVE_TIMESPEC # include <emul/timespec.h> #endif #include <errno.h> #include "compat.h" int nanosleep(ts, rts) const struct timespec *ts; struct timespec *rts; { struct timeval timeout, endtime, now; int rval; timeout.tv_sec = ts->tv_sec; timeout.tv_usec = ts->tv_nsec / 1000; if (rts != NULL) { gettimeofday(&endtime, NULL); timevaladd(&endtime, &timeout); } rval = select(0, NULL, NULL, NULL, &timeout); if (rts != NULL && rval == -1 && errno == EINTR) { gettimeofday(&now, NULL); timevalsub(&endtime, &now); rts->tv_sec = endtime.tv_sec; rts->tv_nsec = endtime.tv_usec * 1000; } return(rval); }