/*

 * Check: a unit test framework for C

 * Copyright (C) 2001, 2002 Arien Malec

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 */

#include "libcompat.h"

int timer_settime(timer_t timerid CK_ATTRIBUTE_UNUSED,

                  int flags CK_ATTRIBUTE_UNUSED,

                  const struct itimerspec *new_value,

                  struct itimerspec *old_value CK_ATTRIBUTE_UNUSED)

{

#ifdef HAVE_SETITIMER

    /*

     * If the system does not have timer_settime() but does have

     * setitimer() use that instead of alarm().

     */

    struct itimerval interval;

    interval.it_value.tv_sec = new_value->it_value.tv_sec;

    interval.it_value.tv_usec = new_value->it_value.tv_nsec / 1000;

    interval.it_interval.tv_sec = new_value->it_interval.tv_sec;

    interval.it_interval.tv_usec = new_value->it_interval.tv_nsec / 1000;

    return setitimer(ITIMER_REAL, &interval, NULL);

#else

    int seconds = new_value->it_value.tv_sec;

    /* 

     * As the alarm() call has only second precision, if the caller

     * specifies partial seconds, we round up to the nearest second.

     */

    if(new_value->it_value.tv_nsec > 0)

    {

        seconds += 1;

    }

    alarm(seconds);

    return 0;

#endif

}