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/*  message.inl

 *

 *  This include file contains the static inline implementation of all

 *  inlined routines in the Message Manager.

 *

 *  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: message.inl,v 1.2 2001-09-27 11:59:18 chris Exp $

 */

#ifndef __MESSAGE_QUEUE_inl

#define __MESSAGE_QUEUE_inl

#include 

/*PAGE

 *

 *  _Message_queue_Is_null

 *

 *  DESCRIPTION:

 *

 *  This function places the_message at the rear of the outstanding

 *  messages on the_message_queue.

 */

RTEMS_INLINE_ROUTINE boolean _Message_queue_Is_null (

  Message_queue_Control *the_message_queue

)

{

  return ( the_message_queue == NULL  );

}

/*PAGE

 *

 *  _Message_queue_Free

 *

 *  DESCRIPTION:

 *

 *  This routine deallocates a message queue control block into

 *  the inactive chain of free message queue control blocks.

 */

RTEMS_INLINE_ROUTINE void _Message_queue_Free (

  Message_queue_Control *the_message_queue

)

{

  _Objects_Free( &_Message_queue_Information, &the_message_queue->Object );

}

/*PAGE

 *

 *  _Message_queue_Get

 *

 *  DESCRIPTION:

 *

 *  This function maps message queue IDs to message queue control

 *  blocks.  If ID corresponds to a local message queue, then it

 *  returns the_message_queue control pointer which maps to ID

 *  and location is set to OBJECTS_LOCAL.  If the message queue ID is

 *  global and resides on a remote node, then location is set

 *  to OBJECTS_REMOTE, and the_message_queue is undefined.

 *  Otherwise, location is set to OBJECTS_ERROR and

 *  the_message_queue is undefined.

 */

RTEMS_INLINE_ROUTINE Message_queue_Control *_Message_queue_Get (

  Objects_Id         id,

  Objects_Locations *location

)

{

  return (Message_queue_Control *)

     _Objects_Get( &_Message_queue_Information, id, location );

}

#endif

/* end of include file */