msg.c

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

/*
 *  Message Queue 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.rtems.com/license/LICENSE.
 *
 *  $Id: msg.c,v 1.27.2.1 2003/09/04 18:47:17 joel Exp $
 */

#include <rtems/system.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/chain.h>
#include <rtems/score/isr.h>
#include <rtems/score/coremsg.h>
#include <rtems/score/object.h>
#include <rtems/score/states.h>
#include <rtems/score/thread.h>
#include <rtems/score/wkspace.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/rtems/status.h>
#include <rtems/rtems/attr.h>
#include <rtems/rtems/message.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/support.h>

/*PAGE
 *
 *  _Message_queue_Manager_initialization
 *
 *  This routine initializes all message queue manager related
 *  data structures.
 *
 *  Input parameters:
 *    maximum_message_queues - number of message queues to initialize
 *
 *  Output parameters:  NONE
 */

void _Message_queue_Manager_initialization(
  unsigned32 maximum_message_queues
)
{
  _Objects_Initialize_information(
    &_Message_queue_Information,  /* object information table */
    OBJECTS_CLASSIC_API,          /* object API */
    OBJECTS_RTEMS_MESSAGE_QUEUES, /* object class */
    maximum_message_queues,       /* maximum objects of this class */
    sizeof( Message_queue_Control ),
                               /* size of this object's control block */
    FALSE,                     /* TRUE if names of this object are strings */
    RTEMS_MAXIMUM_NAME_LENGTH  /* maximum length of each object's name */
#if defined(RTEMS_MULTIPROCESSING)
    ,
    TRUE,                      /* TRUE if this is a global object class */
    _Message_queue_MP_Send_extract_proxy  /* Proxy extraction support callout */
#endif
  );

  /*
   *  Register the MP Process Packet routine.
   */

#if defined(RTEMS_MULTIPROCESSING)
  _MPCI_Register_packet_processor(
    MP_PACKET_MESSAGE_QUEUE,
    _Message_queue_MP_Process_packet
  );
#endif

}