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/*

 *  times() - POSIX 1003.1b 4.5.2 - Get Process Times

 *

 *  COPYRIGHT (c) 1989-1999.

 *  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.OARcorp.com/rtems/license.html.

 *

 *  __times.c,v 1.13 2002/07/01 22:35:07 joel Exp

 */

#if HAVE_CONFIG_H

#include "config.h"

#endif

#include <rtems.h>

#include <sys/times.h>

#include <time.h>

#include <sys/time.h>

#include <errno.h>

#include <assert.h>

clock_t _times(

   struct tms  *ptms

)

{

  rtems_interval ticks;

  if ( !ptms ) {

    errno = EFAULT;

    return -1;

  }

  /*

   *  This call does not depend on TOD being initialized and can't fail.

   */

  (void) rtems_clock_get( RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &ticks );

  /*

   *  RTEMS technically has no notion of system versus user time

   *  since there is no separation of OS from application tasks.

   *  But we can at least make a distinction between the number

   *  of ticks since boot and the number of ticks executed by this

   *  this thread.

   */

  ptms->tms_utime  = _Thread_Executing->ticks_executed;

  ptms->tms_stime  = ticks;

  ptms->tms_cutime = 0;

  ptms->tms_cstime = 0;

  return ticks;

}

/*

 *  times()

 *

 *  times() system call wrapper for _times() above.

 */

clock_t times(

   struct tms  *ptms

)

{

  return _times( ptms );

}

/*

 *  _times_r

 *

 *  This is the Newlib dependent reentrant version of times().

 */

#if defined(RTEMS_NEWLIB)

#include <reent.h>

clock_t _times_r(

   struct _reent *ptr,

   struct tms  *ptms

)

{

  return _times( ptms );

}

#endif