/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package com.nokia.mj.impl.rt.j9;

import com.ibm.oti.vm.VM;

import com.nokia.mj.impl.rt.JvmPort;

import com.nokia.mj.impl.rt.support.ThreadEventListener;

import com.nokia.mj.impl.rt.support.NativeMemoryBlock;

/**

 *

 * @author Nokia Corporation

 * @version 1.0

 */

abstract class JvmPortCommon extends JvmPort

{

    ThreadEventListener                     mClientListener = null;

    com.ibm.oti.util.ThreadEventListener    mVmListener = null;

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#runYoungGenerationGc.

     */

    public final boolean runYoungGenerationGc()

    {

        VM.localGC();

        return true;

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#getResourceAsNativeMemory.

     */

    public final NativeMemoryBlock getResourceAsNativeMemory(String jarPath, String resName)

    {

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#disableRuntimeExit.

     */

    public final void disableRuntimeExit()

    {

        VM.stopExit();

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#enableRuntimeExit.

     */

    public final void enableRuntimeExit()

    {

        VM.allowMidpExit();

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#exitVm.

     */

    public final void exitVm(int status)

    {

        System.exit(status);

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#setThreadEventListener.

     */

    public void setThreadEventListener(ThreadEventListener listener)

    {

        mClientListener = listener;

        if (mVmListener == null)

        {

            mVmListener = new com.ibm.oti.util.ThreadEventListener()

            {

                public void threadStarting(Thread newThread, Thread parentThread)

                {

                    mClientListener.threadStarting(newThread, parentThread);

                }

                public void threadDeath(Thread thread)

                {

                    mClientListener.threadDied(thread);

                }

                public void uncaughtException(Thread thread, Throwable throwable)

                {

                    mClientListener.uncaughtException(thread, throwable);

                }

            };

            com.ibm.oti.util.ThreadEventHook.setListener(mVmListener);

        }

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#addRestrictedPackagePrefixes.

     */

    public final void addRestrictedPackagePrefixes(String[] packageNames)

    throws SecurityException

    {

        VM.addRestrictedPackages(packageNames);

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#addProtectedPackagePrefixes.

     */

    public final void addProtectedPackagePrefixes(String[] packageNames)

    throws SecurityException

    {

        VM.addProtectedPackages(packageNames);

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#appendClasspath.

     */

    public final void appendToClassPath(String path)

    {

        VM.appendToClassPath(path);

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#shrinkJavaHeapToMinimum.

     */

    public final int shrinkJavaHeapToMinimum()

    {

        return VM.contractOldSpaceFully();

    }

    /**

     * @see com.nokia.mj.impl.runtimesupport.JvmPort#expandJavaHeap.

     */

    public final int expandJavaHeap(int amount)

    {

        return VM.expandOldSpace(amount);

    }

}