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/*

 *

 *

 *  $Id: priority.h,v 1.2 2001-09-27 11:59:14 chris Exp $

 */

#ifndef __RTEMS_POSIX_PRIORITY_h

#define __RTEMS_POSIX_PRIORITY_h

#include <rtems/score/priority.h>

/*

 *  1003.1b-1993,2.2.2.80 definition of priority, p. 19

 *

 *  "Numericallly higher values represent higher priorities."

 *

 *  Thus, RTEMS Core has priorities run in the opposite sense of the POSIX API.

 *

 *  There are only 254 posix priority levels since a task at priority level

 *  255 would never run because of the RTEMS idle task.  This is necessary

 *  because GNAT maps the lowest Ada task priority to the lowest thread

 *  priority.  The lowest priority Ada task should get to run, so there is

 *  a fundamental conflict with having 255 priorities.

 */

#define POSIX_SCHEDULER_MAXIMUM_PRIORITY (254)

#define POSIX_SCHEDULER_MINIMUM_PRIORITY (1)

RTEMS_INLINE_ROUTINE boolean _POSIX_Priority_Is_valid(

  int priority

);

RTEMS_INLINE_ROUTINE Priority_Control _POSIX_Priority_To_core(

  int priority

);

RTEMS_INLINE_ROUTINE int _POSIX_Priority_From_core(

  Priority_Control priority

);

#include <rtems/posix/priority.inl>

#endif