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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2000-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

/*
 * @(#)shimUtils.cpp	1.7 06/26/07
 */ 

#include "../basictypes/HandledObject.hpp"
#include "shimUtils.hpp"


/*
 *
 */
MQStatus 
freeHandledObject(const MQObjectHandle   handle,
                  const HandledObjectType objectType)
{
  MQError errorCode = MQ_SUCCESS;
  HandledObject * object = NULL;
  
  // Convert the handle to a HandledObject pointer.
  // If handle is invalid, then return an error
  object = getHandledObject(handle, objectType);
  CNDCHK( object == NULL, MQ_STATUS_INVALID_HANDLE );
  releaseHandledObject(object);
  object = NULL;

  // Delete the object
  ERRCHK( HandledObject::externallyDelete(handle) );

  //// The handle should be invalid now
  //ASSERT( HandledObject::getObject(handle) == NULL );
  
  RETURN_STATUS( MQ_SUCCESS );
Cleanup:
  RETURN_STATUS( errorCode );
}





/*
 *
 */
HandledObject *
getHandledObject(const MQObjectHandle   handle,
                 const HandledObjectType objectType)
{
  // Get the object associated with this handle
  // Return NULL if it is an invalid handle, the type of the
  // handle is an unexpected type, or the object's handle
  // has not been exported
  HandledObject * object = HandledObject::acquireExternalReference(handle);
  if ((object == NULL)                                || 
      ((object->getObjectType() != objectType) &&
       (object->getSuperObjectType() != objectType))  ||
      !object->getIsExported())
  {
    releaseHandledObject(object);
    return NULL;
  }

  return object;
}




/*
 *
 */
MQStatus 
releaseHandledObject(HandledObject * object)
{
  MQError errorCode = MQ_SUCCESS;
  
  CNDCHK( object == NULL, MQ_STATUS_INVALID_HANDLE );

  // This may delete the object, if it was deleted internally.
  ERRCHK( HandledObject::releaseExternalReference(object) );
  
  RETURN_STATUS( MQ_SUCCESS );
Cleanup:
  RETURN_STATUS( errorCode );
}




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