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/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <time.h>
#include <errno.h>
#include <rtems/system.h>
#include <rtems/score/isr.h>
#include <rtems/score/thread.h>
#include <rtems/score/tod.h>
#include <rtems/seterr.h>
/*PAGE
*
* 14.2.1 Clocks, P1003.1b-1993, p. 263
*/
int clock_settime(
clockid_t clock_id,
const struct timespec *tp
)
{
if ( !tp )
rtems_set_errno_and_return_minus_one( EINVAL );
if ( clock_id == CLOCK_REALTIME ) {
if ( tp->tv_sec < TOD_SECONDS_1970_THROUGH_1988 )
rtems_set_errno_and_return_minus_one( EINVAL );
_Thread_Disable_dispatch();
_TOD_Set( tp );
_Thread_Enable_dispatch();
}
#ifdef _POSIX_CPUTIME
else if ( clock_id == CLOCK_PROCESS_CPUTIME_ID )
rtems_set_errno_and_return_minus_one( ENOSYS );
#endif
#ifdef _POSIX_THREAD_CPUTIME
else if ( clock_id == CLOCK_THREAD_CPUTIME_ID )
rtems_set_errno_and_return_minus_one( ENOSYS );
#endif
else
rtems_set_errno_and_return_minus_one( EINVAL );
return 0;
}
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