Return to nanosleep.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sudo / compat

Annotation of embedaddon/sudo/compat/nanosleep.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2009-2011 Todd C. Miller <Todd.Miller@courtesan.com>
        !             3:  *
        !             4:  * Permission to use, copy, modify, and distribute this software for any
        !             5:  * purpose with or without fee is hereby granted, provided that the above
        !             6:  * copyright notice and this permission notice appear in all copies.
        !             7:  *
        !             8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !             9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            15:  */
        !            16: 
        !            17: #include <config.h>
        !            18: 
        !            19: #include <sys/types.h>
        !            20: #include <sys/time.h>
        !            21: #ifdef HAVE_SYS_SELECT_H
        !            22: #include <sys/select.h>
        !            23: #endif /* HAVE_SYS_SELECT_H */
        !            24: #if TIME_WITH_SYS_TIME
        !            25: # include <time.h>
        !            26: #endif
        !            27: #ifndef HAVE_TIMESPEC
        !            28: # include "compat/timespec.h"
        !            29: #endif
        !            30: #include <errno.h>
        !            31: 
        !            32: #include "missing.h"
        !            33: 
        !            34: int
        !            35: nanosleep(const struct timespec *ts, struct timespec *rts)
        !            36: {
        !            37:     struct timeval timeout, endtime, now;
        !            38:     int rval;
        !            39: 
        !            40:     timeout.tv_sec = ts->tv_sec;
        !            41:     timeout.tv_usec = ts->tv_nsec / 1000;
        !            42:     if (rts != NULL) {
        !            43:        gettimeofday(&endtime, NULL);
        !            44:        timevaladd(&endtime, &timeout);
        !            45:     }
        !            46:     rval = select(0, NULL, NULL, NULL, &timeout);
        !            47:     if (rts != NULL && rval == -1 && errno == EINTR) {
        !            48:        gettimeofday(&now, NULL);
        !            49:        timevalsub(&endtime, &now);
        !            50:        rts->tv_sec = endtime.tv_sec;
        !            51:        rts->tv_nsec = endtime.tv_usec * 1000;
        !            52:     }
        !            53:     return rval;
        !            54: }