/*
* Copyright (c) 2009-2010 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.utils;
import java.io.PrintStream;
import java.io.ByteArrayOutputStream;
import com.nokia.mj.impl.rt.support.Jvm;
import com.nokia.mj.impl.utils.Logger;
public final class DebugUtils
{
static
{
try
{
Jvm.loadSystemLibrary("javautils");
}
catch (Throwable t)
{
String errStr = "Error loading debug utils native. ";
Logger.ELOG(Logger.EUtils, errStr,
t);
throw new RuntimeException(errStr);
}
}
/**
* Asks Vm to do thread dump if the dumping libraries are present.
*/
public static void doThreadDump()
{
_doThreadDump();
}
/**
* Closes the thread dumper thread.
*/
public static void closeThreadDumper()
{
_closeThreadDumper();
}
public static String getStackTrace(Throwable t)
{
String res = null;
if (t != null)
{
try
{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
_getStackTrace(t, new PrintStream(baos));
res = baos.toString();
}
catch (Throwable t2)
{
System.err.println("Failure in getting stack trace.");
t2.printStackTrace();
}
}
return res;
}
private static native void _getStackTrace(Throwable t, PrintStream printStream);
private static native void _doThreadDump();
private static native void _closeThreadDumper();
}