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/*

 *  13.5.2 Dynamic Thread Scheduling Parameters Access,

 *         P1003.1c/Draft 10, p. 124

 *

 *  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: pthreadgetschedparam.c,v 1.2 2001-09-27 11:59:17 chris Exp $

 */

#include <pthread.h>

#include <errno.h>

#include <rtems/system.h>

#include <rtems/posix/pthread.h>

#include <rtems/posix/priority.h>

int pthread_getschedparam(

  pthread_t           thread,

  int                *policy,

  struct sched_param *param

)

{

  Objects_Locations        location;

  POSIX_API_Control       *api;

  register Thread_Control *the_thread;

  if ( !policy || !param  )

    return EINVAL;

  the_thread = _POSIX_Threads_Get( thread, &location );

  switch ( location ) {

    case OBJECTS_ERROR:

    case OBJECTS_REMOTE:

      return ESRCH;

    case OBJECTS_LOCAL:

      api = the_thread->API_Extensions[ THREAD_API_POSIX ];

      *policy = api->schedpolicy;

      *param  = api->schedparam;

      param->sched_priority =

        _POSIX_Priority_From_core( the_thread->current_priority );

      _Thread_Enable_dispatch();

      return 0;

  }

  return POSIX_BOTTOM_REACHED();

}