Subversion Repositories openrisc_2011-10-31

/*

 *  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.

 *

 *  $Id: __times.c,v 1.2 2001-09-27 12:01:15 chris Exp $

 */

#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_status_code  status;

  rtems_interval     ticks;

  if ( !ptms ) {

    errno = EFAULT;

    return -1;

  }

  /* "POSIX" does not seem to allow for not having a TOD */

  status = rtems_clock_get( RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &ticks );

  if ( status != RTEMS_SUCCESSFUL ) {

    assert( 0 );

    return -1;

  }

  /*

   *  RTEMS has no notion of system versus user time and although

   *  a way to keep track of per task CPU usage was added since

   *  3.6.0, this routine does not utilize it yet.

   */

  ptms->tms_utime  = ticks;

  ptms->tms_stime  = 0;

  ptms->tms_cutime = 0;

  ptms->tms_cstime = 0;

  return 0;

}

/*

 *  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