/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdi.internal.request;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import org.eclipse.jdi.internal.VirtualMachineImpl;
import org.eclipse.jdi.internal.event.EventImpl;
import org.eclipse.jdi.internal.jdwp.JdwpCommandPacket;
import org.eclipse.jdi.internal.jdwp.JdwpReplyPacket;
/**
* this class implements the corresponding interfaces declared by the OTI Hot
* Code Replacement extentions of the JDI specification.
*/
public class ReenterStepRequestImpl extends StepRequestImpl implements
org.eclipse.jdi.hcr.ReenterStepRequest {
/**
* Creates new ReenterStepRequestImpl.
*/
public ReenterStepRequestImpl(VirtualMachineImpl vmImpl) {
super("ReenterStepRequest", vmImpl); //$NON-NLS-1$
}
/**
* @return Returns JDWP constant for step depth.
*/
@Override
public int threadStepDepthJDWP(int threadStepDepth) {
return STEP_DEPTH_REENTER_JDWP_HCR;
}
/**
* Enables event request.
*/
@Override
public void enable() {
if (isEnabled())
return;
initJdwpRequest();
try {
ByteArrayOutputStream outBytes = new ByteArrayOutputStream();
DataOutputStream outData = new DataOutputStream(outBytes);
writeByte(eventKind(),
"event kind", EventImpl.eventKindMap(), outData); // Always 01 for Step event. //$NON-NLS-1$
writeByte(suspendPolicyJDWP(), "suspend policy", outData); //$NON-NLS-1$
writeInt(modifierCount(), "modifiers", outData); //$NON-NLS-1$
writeModifiers(outData);
JdwpReplyPacket replyPacket = requestVM(
JdwpCommandPacket.HCR_REENTER_ON_EXIT, outBytes);
defaultReplyErrorHandler(replyPacket.errorCode());
DataInputStream replyData = replyPacket.dataInStream();
fRequestID = RequestID.read(this, replyData);
virtualMachineImpl().eventRequestManagerImpl().addRequestIDMapping(
this);
} catch (IOException e) {
defaultIOExceptionHandler(e);
} finally {
handledJdwpRequest();
}
}
}