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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 <rtems/score/wkspace.h>
/*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 */
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