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diff --git a/libjava/gnu/classpath/jdwp/processor/VirtualMachineCommandSet.java b/libjava/gnu/classpath/jdwp/processor/VirtualMachineCommandSet.java
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-/* VirtualMachineCommandSet.java -- class to implement the VirtualMachine
- Command Set
- Copyright (C) 2005 Free Software Foundation
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package gnu.classpath.jdwp.processor;
-
-import gnu.classpath.jdwp.IVirtualMachine;
-import gnu.classpath.jdwp.Jdwp;
-import gnu.classpath.jdwp.JdwpConstants;
-import gnu.classpath.jdwp.exception.JdwpException;
-import gnu.classpath.jdwp.exception.JdwpInternalErrorException;
-import gnu.classpath.jdwp.exception.NotImplementedException;
-import gnu.classpath.jdwp.id.IdManager;
-import gnu.classpath.jdwp.id.ObjectId;
-import gnu.classpath.jdwp.id.ReferenceTypeId;
-import gnu.classpath.jdwp.util.JdwpString;
-import gnu.classpath.jdwp.util.Signature;
-
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.Properties;
-
-/**
- * A class representing the VirtualMachine Command Set.
- *
- * @author Aaron Luchko <aluchko@redhat.com>
- */
-public class VirtualMachineCommandSet implements CommandSet
-{
- // Our hook into the jvm
- private final IVirtualMachine vm = Jdwp.getIVirtualMachine();
-
- // Manages all the different ids that are assigned by jdwp
- private final IdManager idMan = Jdwp.getIdManager();
-
- // The Jdwp object
- private final Jdwp jdwp = Jdwp.getDefault();
-
- public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command)
- throws JdwpException
- {
- boolean keepRunning = true;
- try
- {
- switch (command)
- {
- case JdwpConstants.CommandSet.VirtualMachine.VERSION:
- executeVersion(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.CLASSES_BY_SIGNATURE:
- executeClassesBySignature(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.ALL_CLASSES:
- executeAllClasses(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.ALL_THREADS:
- executeAllThreads(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.TOP_LEVEL_THREAD_GROUPS:
- executeTopLevelThreadGroups(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.IDSIZES:
- executeIDsizes(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.DISPOSE:
- keepRunning = false;
- executeDispose(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.SUSPEND:
- executeSuspend(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.RESUME:
- executeResume(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.EXIT:
- keepRunning = false;
- executeExit(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.CREATE_STRING:
- executeCreateString(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.CAPABILITIES:
- executeCapabilities(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.CLASS_PATHS:
- executeClassPaths(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.DISPOSE_OBJECTS:
- executeDisposeObjects(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.HOLD_EVENTS:
- executeHoldEvents(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.RELEASE_EVENTS:
- executeReleaseEvents(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.CAPABILITIES_NEW:
- executeCapabilitiesNew(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.REDEFINE_CLASSES:
- executeRedefineClasses(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.SET_DEFAULT_STRATUM:
- executeSetDefaultStratum(bb, os);
- break;
- case JdwpConstants.CommandSet.VirtualMachine.ALL_CLASSES_WITH_GENERIC:
- executeAllClassesWithGeneric(bb, os);
- break;
-
- default:
- break;
- }
- }
- catch (IOException ex)
- {
- // The DataOutputStream we're using isn't talking to a socket at all
- // So if we throw an IOException we're in serious trouble
- throw new JdwpInternalErrorException(ex);
- }
- return keepRunning;
- }
-
- private void executeVersion(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
-
- Properties props = System.getProperties();
-
- int jdwpMajor = JdwpConstants.Version.MAJOR;
- int jdwpMinor = JdwpConstants.Version.MINOR;
- // The description field is pretty loosely defined
- String description = "JDWP version " + jdwpMajor + "." + jdwpMinor
- + ", JVM version " + props.getProperty("java.vm.name")
- + " " + props.getProperty("java.vm.version") + " "
- + props.getProperty("java.version");
- String vmVersion = props.getProperty("java.version");
- String vmName = props.getProperty("java.vm.name");
- JdwpString.writeString(os, description);
- os.write(jdwpMajor);
- os.write(jdwpMinor);
- JdwpString.writeString(os, vmName);
- JdwpString.writeString(os, vmVersion);
- }
-
- private void executeClassesBySignature(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- String sig = JdwpString.readString(bb);
- ArrayList allMatchingClasses = new ArrayList();
-
- // This will be an Iterator over all loaded Classes
- Iterator iter = vm.getAllLoadedClasses();
-
- while (iter.hasNext())
- {
- Class clazz = (Class) iter.next();
- String clazzSig = Signature.computeClassSignature(clazz);
- if (clazzSig.equals(sig))
- allMatchingClasses.add(clazz);
- }
-
- os.writeInt(allMatchingClasses.size());
- for (int i = 0; i < allMatchingClasses.size(); i++)
- {
- Class clazz = (Class) allMatchingClasses.get(i);
- ReferenceTypeId id = idMan.getReferenceTypeId(clazz);
- id.writeTagged(os);
- int status = vm.getStatus(clazz);
- os.writeInt(status);
- }
- }
-
- private void executeAllClasses(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- // Disable garbage collection while we're collecting the info on loaded
- // classes so we some classes don't get collected between the time we get
- // the count and the time we get the list
- vm.disableGarbageCollection();
-
- int classCount = vm.getAllLoadedClassesCount();
- os.writeInt(classCount);
-
- // This will be an Iterator over all loaded Classes
- Iterator iter = vm.getAllLoadedClasses();
- vm.enableGarbageCollection();
- int count = 0;
-
- // Note it's possible classes were created since out classCount so make
- // sure we don't write more classes than we told the debugger
- while (iter.hasNext() && count++ < classCount)
- {
- Class clazz = (Class) iter.next();
- ReferenceTypeId id = idMan.getReferenceTypeId(clazz);
- id.writeTagged(os);
- String sig = Signature.computeClassSignature(clazz);
- JdwpString.writeString(os, sig);
- int status = vm.getStatus(clazz);
- os.writeInt(status);
- }
- }
-
- private void executeAllThreads(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- ThreadGroup jdwpGroup = Thread.currentThread().getThreadGroup();
- ThreadGroup root = getRootThreadGroup(jdwpGroup);
-
- int numThreads = root.activeCount();
- Thread allThreads[] = new Thread[numThreads];
- root.enumerate(allThreads, true);
-
- // We need to loop through for the true count since some threads may have
- // been destroyed since we got
- // activeCount so those spots in the array will be null. As well we must
- // ignore any threads that belong to jdwp
- numThreads = 0;
- for (int i = 0; i < allThreads.length; i++)
- {
- Thread thread = allThreads[i];
- if (thread == null)
- break; // No threads after this point
- if (!thread.getThreadGroup().equals(jdwpGroup))
- numThreads++;
- }
-
- os.writeInt(numThreads);
-
- for (int i = 0; i < allThreads.length; i++)
- {
- Thread thread = allThreads[i];
- if (thread == null)
- break; // No threads after this point
- if (!thread.getThreadGroup().equals(jdwpGroup))
- idMan.getId(thread).write(os);
- }
- }
-
- private void executeTopLevelThreadGroups(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- ThreadGroup jdwpGroup = jdwp.getJdwpThreadGroup();
- ThreadGroup root = getRootThreadGroup(jdwpGroup);
-
- os.writeInt(1); // Just one top level group allowed?
- idMan.getId(root);
- }
-
- private void executeDispose(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- // resumeAllThreads isn't sufficient as a thread may have been
- // suspended multiple times, we likely need a way to keep track of how many
- // times a thread has been suspended or else a stronger resume method for
- // this purpose
- // vm.resumeAllThreadsExcept(jdwp.getJdwpThreadGroup());
-
- // Simply shutting down the jdwp layer will take care of the rest of the
- // shutdown other than disabling debugging in the VM
- // vm.disableDebugging();
-
- // Don't implement this until we're sure how to remove all the debugging
- // effects from the VM.
- throw new NotImplementedException(
- "Command VirtualMachine.Dispose not implemented");
-
- }
-
- private void executeIDsizes(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- ObjectId oid = new ObjectId();
- os.writeInt(oid.size()); // fieldId
- os.writeInt(oid.size()); // methodId
- os.writeInt(oid.size()); // objectId
- os.writeInt(new ReferenceTypeId((byte) 0x00).size()); // referenceTypeId
- os.writeInt(oid.size()); // frameId
- }
-
- private void executeSuspend(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- vm.suspendAllThreadsExcept(jdwp.getJdwpThreadGroup());
- }
-
- private void executeResume(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- vm.resumeAllThreadsExcept(jdwp.getJdwpThreadGroup());
- }
-
- private void executeExit(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- int exitCode = bb.getInt();
- jdwp.setExit(exitCode);
- }
-
- private void executeCreateString(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- String string = JdwpString.readString(bb);
- ObjectId stringId = Jdwp.getIdManager().getId(string);
-
- // Since this string isn't referenced anywhere we'll disable garbage
- // collection on it so it's still around when the debugger gets back to it.
- stringId.disableCollection();
- stringId.write(os);
- }
-
- private void executeCapabilities(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- // Store these somewhere?
- os.writeBoolean(false); // canWatchFieldModification
- os.writeBoolean(false); // canWatchFieldAccess
- os.writeBoolean(false); // canGetBytecodes
- os.writeBoolean(false); // canGetSyntheticAttribute
- os.writeBoolean(false); // canGetOwnedMonitorInfo
- os.writeBoolean(false); // canGetCurrentContendedMonitor
- os.writeBoolean(false); // canGetMonitorInfo
- }
-
- private void executeClassPaths(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- String baseDir = System.getProperty("user.dir");
- JdwpString.writeString(os, baseDir);
-
- // Find and write the classpath
- String classPath = System.getProperty("java.class.path");
- String[] paths = classPath.split(":");
-
- os.writeInt(paths.length);
- for (int i = 0; i < paths.length; i++)
- JdwpString.writeString(os, paths[i]);
-
- // Now the bootpath
- String bootPath = System.getProperty("sun.boot.class.path");
- paths = bootPath.split(":");
- os.writeInt(paths.length);
- for (int i = 0; i < paths.length; i++)
- JdwpString.writeString(os, paths[i]);
- }
-
- private void executeDisposeObjects(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- // Instead of going through the list of objects they give us it's probably
- // better just to find the garbage collected objects ourselves
- idMan.update();
- }
-
- private void executeHoldEvents(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- // Going to have to implement a send queue somewhere and do this without
- // triggering events
- // Until then just don't implement
- throw new NotImplementedException(
- "Command VirtualMachine.HoldEvents not implemented");
- }
-
- // Opposite of executeHoldEvents
- private void executeReleaseEvents(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- throw new NotImplementedException(
- "Command VirtualMachine.ReleaseEvents not implemented");
- }
-
- private void executeCapabilitiesNew(ByteBuffer bb, DataOutputStream os)
- throws JdwpException, IOException
- {
- // Store these somewhere?
- final int CAPABILITIES_NEW_SIZE = 32;
- os.writeBoolean(false); // canWatchFieldModification
- os.writeBoolean(false); // canWatchFieldAccess
- os.writeBoolean(false); // canGetBytecodes
- os.writeBoolean(false); // canGetSyntheticAttribute
- os.writeBoolean(false); // canGetOwnedMonitorInfo
- os.writeBoolean(false); // canGetCurrentContendedMonitor
- os.writeBoolean(false); // canGetMonitorInfo
- os.writeBoolean(false); // canRedefineClasses
- os.writeBoolean(false); // canAddMethod
- os.writeBoolean(false); // canUnrestrictedlyRedefineClasses
- os.writeBoolean(false); // canPopFrames
- os.writeBoolean(false); // canUseInstanceFilters
- os.writeBoolean(false); // canGetSourceDebugExtension
- os.writeBoolean(false); // canRequestVMDeathEvent
- os.writeBoolean(false); // canSetDefaultStratum
- for (int i = 15; i < CAPABILITIES_NEW_SIZE; i++)
- // Future capabilities
- // currently unused
- os.writeBoolean(false); // Set to false
- }
-
- private void executeRedefineClasses(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- // Optional command, don't implement
- throw new NotImplementedException(
- "Command VirtualMachine.RedefineClasses not implemented");
- }
-
- private void executeSetDefaultStratum(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- // Optional command, don't implement
- throw new NotImplementedException(
- "Command VirtualMachine.SetDefaultStratum not implemented");
- }
-
- private void executeAllClassesWithGeneric(ByteBuffer bb, DataOutputStream os)
- throws JdwpException
- {
- // We don't handle generics
- throw new NotImplementedException(
- "Command VirtualMachine.AllClassesWithGeneric not implemented");
- }
-
- /**
- * Find the root ThreadGroup of this ThreadGroup
- */
- private ThreadGroup getRootThreadGroup(ThreadGroup group)
- {
- ThreadGroup parent = group.getParent();
-
- while (parent != null)
- {
- group = parent;
- parent = group.getParent();
- }
- return group; // This group was the root
- }
-}
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