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/*  tqdata.inl

 *

 *  This file contains the static inline implementation of the inlined

 *  routines needed to support the Thread Queue Data.

 *

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

 */

#ifndef __THREAD_QUEUE_DATA_inl

#define __THREAD_QUEUE_DATA_inl

/*PAGE

 *

 *  _Thread_queue_Header_number

 *

 *  DESCRIPTION:

 *

 *  This function returns the index of the priority chain on which

 *  a thread of the_priority should be placed.

 */

RTEMS_INLINE_ROUTINE unsigned32 _Thread_queue_Header_number (

  Priority_Control the_priority

)

{

  return (the_priority / TASK_QUEUE_DATA_PRIORITIES_PER_HEADER);

}

/*PAGE

 *

 *  _Thread_queue_Is_reverse_search

 *

 *  DESCRIPTION:

 *

 *  This function returns TRUE if the_priority indicates that the

 *  enqueue search should start at the front of this priority

 *  group chain, and FALSE if the search should start at the rear.

 */

RTEMS_INLINE_ROUTINE boolean _Thread_queue_Is_reverse_search (

  Priority_Control the_priority

)

{

  return ( the_priority & TASK_QUEUE_DATA_REVERSE_SEARCH_MASK );

}

/*PAGE

 *

 *  _Thread_queue_Enter_critical_section

 *

 *  DESCRIPTION:

 *

 *  This routine is invoked to indicate that the specified thread queue is

 *  entering a critical section.

 */

RTEMS_INLINE_ROUTINE void _Thread_queue_Enter_critical_section (

  Thread_queue_Control *the_thread_queue

)

{

  the_thread_queue->sync_state = THREAD_QUEUE_NOTHING_HAPPENED;

}

#endif

/* end of include file */