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/*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#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>
#include <rtems/posix/time.h>
/*PAGE
*
* 14.2.1 Clocks, P1003.1b-1993, p. 263
*/
int clock_getres(
clockid_t clock_id,
struct timespec *res
)
{
if ( !res )
rtems_set_errno_and_return_minus_one( EINVAL );
switch ( clock_id ) {
/*
* All time in rtems is based on the same clock tick.
*/
case CLOCK_REALTIME:
case CLOCK_PROCESS_CPUTIME:
case CLOCK_THREAD_CPUTIME:
if ( res ) {
res->tv_sec = _TOD_Microseconds_per_tick / 1000000;
res->tv_nsec = _TOD_Microseconds_per_tick * 1000;
/* _POSIX_Interval_to_timespec( _TOD_Microseconds_per_tick, res ); */
}
break;
default:
rtems_set_errno_and_return_minus_one( EINVAL );
}
return 0;
}
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