1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

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

    19 

    20 import com.ibm.oti.vm.VM;

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

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

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

    24 

    25 /**

    26  *

    27  * @author Nokia Corporation

    28  * @version 1.0

    29  */

    30 

    31 abstract class JvmPortCommon extends JvmPort

    32 {

    33 

    34     ThreadEventListener                     mClientListener = null;

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

    36     /**

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

    38      */

    39     public final boolean runYoungGenerationGc()

    40     {

    41         VM.localGC();

    42         return true;

    43     }

    44 

    45 

    46     /**

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

    48      */

    49     public final NativeMemoryBlock getResourceAsNativeMemory(String jarPath, String resName)

    50     {

    51         return new NativeMemoryBlockImpl(jarPath, resName);

    52     }

    53 

    54     /**

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

    56      */

    57     public final void disableRuntimeExit()

    58     {

    59         VM.stopExit();

    60     }

    61 

    62     /**

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

    64      */

    65     public final void enableRuntimeExit()

    66     {

    67         VM.allowMidpExit();

    68     }

    69 

    70     /**

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

    72      */

    73     public final void exitVm(int status)

    74     {

    75         System.exit(status);

    76     }

    77 

    78     /**

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

    80      */

    81     public void setThreadEventListener(ThreadEventListener listener)

    82     {

    83         mClientListener = listener;

    84         if (mVmListener == null)

    85         {

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

    87             {

    88                 public void threadStarting(Thread newThread, Thread parentThread)

    89                 {

    90                     mClientListener.threadStarting(newThread, parentThread);

    91                 }

    92 

    93                 public void threadDeath(Thread thread)

    94                 {

    95                     mClientListener.threadDied(thread);

    96                 }

    97 

    98                 public void uncaughtException(Thread thread, Throwable throwable)

    99                 {

   100                     mClientListener.uncaughtException(thread, throwable);

   101                 }

   102             };

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

   104         }

   105     }

   106 

   107     /**

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

   109      */

   110     public final void addRestrictedPackagePrefixes(String[] packageNames)

   111     throws SecurityException

   112     {

   113         VM.addRestrictedPackages(packageNames);

   114     }

   115 

   116     /**

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

   118      */

   119     public final void addProtectedPackagePrefixes(String[] packageNames)

   120     throws SecurityException

   121     {

   122         VM.addProtectedPackages(packageNames);

   123     }

   124 

   125     /**

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

   127      */

   128     public final void appendToClassPath(String path)

   129     {

   130         VM.appendToClassPath(path);

   131     }

   132 

   133     /**

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

   135      */

   136     public final int shrinkJavaHeapToMinimum()

   137     {

   138         return VM.contractOldSpaceFully();

   139     }

   140 

   141     /**

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

   143      */

   144     public final int expandJavaHeap(int amount)

   145     {

   146         return VM.expandOldSpace(amount);

   147     }

   148 

   149 }