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jlechner |
/* ThreadReferenceCommandSet.java -- class to implement the ThreadReference
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Command Set Copyright (C) 2005 Free Software Foundation
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.classpath.jdwp.processor;
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import gnu.classpath.jdwp.JdwpConstants;
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import gnu.classpath.jdwp.VMFrame;
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import gnu.classpath.jdwp.VMVirtualMachine;
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import gnu.classpath.jdwp.exception.InvalidObjectException;
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import gnu.classpath.jdwp.exception.JdwpException;
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import gnu.classpath.jdwp.exception.JdwpInternalErrorException;
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import gnu.classpath.jdwp.exception.NotImplementedException;
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import gnu.classpath.jdwp.id.ObjectId;
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import gnu.classpath.jdwp.id.ThreadId;
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import gnu.classpath.jdwp.util.JdwpString;
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import gnu.classpath.jdwp.util.Location;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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/**
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* A class representing the ThreadReference Command Set.
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*
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* @author Aaron Luchko <aluchko@redhat.com>
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*/
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public class ThreadReferenceCommandSet
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extends CommandSet
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{
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public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command)
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throws JdwpException
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{
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try
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{
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switch (command)
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{
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case JdwpConstants.CommandSet.ThreadReference.NAME:
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executeName(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.SUSPEND:
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executeSuspend(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.RESUME:
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executeResume(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.STATUS:
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executeStatus(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.THREAD_GROUP:
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executeThreadGroup(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.FRAMES:
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executeFrames(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.FRAME_COUNT:
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executeFrameCount(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.OWNED_MONITORS:
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executeOwnedMonitors(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.CURRENT_CONTENDED_MONITOR:
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executeCurrentContendedMonitor(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.STOP:
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executeStop(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.INTERRUPT:
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executeInterrupt(bb, os);
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break;
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case JdwpConstants.CommandSet.ThreadReference.SUSPEND_COUNT:
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executeSuspendCount(bb, os);
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break;
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default:
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throw new NotImplementedException("Command " + command +
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" not found in Thread Reference Command Set.");
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}
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}
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catch (IOException ex)
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{
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// The DataOutputStream we're using isn't talking to a socket at all
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// So if we throw an IOException we're in serious trouble
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throw new JdwpInternalErrorException(ex);
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}
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return false;
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}
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private void executeName(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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JdwpString.writeString(os, thread.getName());
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}
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private void executeSuspend(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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VMVirtualMachine.suspendThread(thread);
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}
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private void executeResume(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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VMVirtualMachine.suspendThread(thread);
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}
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private void executeStatus(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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int threadStatus = VMVirtualMachine.getThreadStatus(thread);
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// There's only one possible SuspendStatus...
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int suspendStatus = JdwpConstants.SuspendStatus.SUSPENDED;
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os.writeInt(threadStatus);
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os.writeInt(suspendStatus);
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}
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private void executeThreadGroup(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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ThreadGroup group = thread.getThreadGroup();
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ObjectId groupId = idMan.getObjectId(group);
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groupId.write(os);
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}
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private void executeFrames(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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int startFrame = bb.getInt();
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int length = bb.getInt();
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ArrayList frames = VMVirtualMachine.getFrames(thread, startFrame, length);
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os.writeInt(frames.size());
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for (int i = 0; i < frames.size(); i++)
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{
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VMFrame frame = (VMFrame) frames.get(i);
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os.writeLong(frame.getId());
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Location loc = frame.getLocation();
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loc.write(os);
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}
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}
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private void executeFrameCount(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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int frameCount = VMVirtualMachine.getFrameCount(thread);
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os.writeInt(frameCount);
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}
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private void executeOwnedMonitors(ByteBuffer bb, DataOutputStream os)
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throws JdwpException
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{
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// This command is optional, determined by VirtualMachines CapabilitiesNew
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// so we'll leave it till later to implement
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throw new NotImplementedException(
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"Command OwnedMonitors not implemented.");
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}
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private void executeCurrentContendedMonitor(ByteBuffer bb,
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DataOutputStream os)
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throws JdwpException
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{
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// This command is optional, determined by VirtualMachines CapabilitiesNew
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// so we'll leave it till later to implement
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throw new NotImplementedException(
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"Command CurrentContentedMonitors not implemented.");
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}
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private void executeStop(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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ObjectId exception = idMan.readObjectId(bb);
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Throwable throwable = (Throwable) exception.getObject();
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thread.stop (throwable);
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}
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private void executeInterrupt(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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thread.interrupt();
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}
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private void executeSuspendCount(ByteBuffer bb, DataOutputStream os)
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throws JdwpException, IOException
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{
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ThreadId tid = (ThreadId) idMan.readObjectId(bb);
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Thread thread = tid.getThread();
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int suspendCount = VMVirtualMachine.getSuspendCount(thread);
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os.writeInt(suspendCount);
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}
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}
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