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/*

 *  Time of Day (TOD) Handler

 *

 *

 *  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: coretodvalidate.c,v 1.2 2001-09-27 11:59:34 chris Exp $

 */

#include <rtems/system.h>

#include <rtems/score/object.h>

#include <rtems/score/thread.h>

#include <rtems/score/tod.h>

#include <rtems/score/watchdog.h>

/*PAGE

 *

 *  _TOD_Validate

 *

 *  This kernel routine checks the validity of a date and time structure.

 *

 *  Input parameters:

 *    the_tod - pointer to a time and date structure

 *

 *  Output parameters:

 *    TRUE  - if the date, time, and tick are valid

 *    FALSE - if the the_tod is invalid

 *

 *  NOTE: This routine only works for leap-years through 2099.

 */

boolean _TOD_Validate(

  TOD_Control *the_tod

)

{

  unsigned32 days_in_month;

  if ((the_tod->ticks  >= _TOD_Ticks_per_second)  ||

      (the_tod->second >= TOD_SECONDS_PER_MINUTE) ||

      (the_tod->minute >= TOD_MINUTES_PER_HOUR)   ||

      (the_tod->hour   >= TOD_HOURS_PER_DAY)      ||

      (the_tod->month  == 0)                      ||

      (the_tod->month  >  TOD_MONTHS_PER_YEAR)    ||

      (the_tod->year   <  TOD_BASE_YEAR)          ||

      (the_tod->day    == 0) )

     return FALSE;

  if ( (the_tod->year % 4) == 0 )

    days_in_month = _TOD_Days_per_month[ 1 ][ the_tod->month ];

  else

    days_in_month = _TOD_Days_per_month[ 0 ][ the_tod->month ];

  if ( the_tod->day > days_in_month )

    return FALSE;

  return TRUE;

}