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Diffstat (limited to 'libjava/classpath/gnu/classpath/jdwp/processor/ThreadReferenceCommandSet.java')
| -rw-r--r-- | libjava/classpath/gnu/classpath/jdwp/processor/ThreadReferenceCommandSet.java | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/classpath/jdwp/processor/ThreadReferenceCommandSet.java b/libjava/classpath/gnu/classpath/jdwp/processor/ThreadReferenceCommandSet.java new file mode 100644 index 000000000..2bbff44de --- /dev/null +++ b/libjava/classpath/gnu/classpath/jdwp/processor/ThreadReferenceCommandSet.java @@ -0,0 +1,265 @@ +/* ThreadReferenceCommandSet.java -- class to implement the ThreadReference + Command Set Copyright (C) 2005, 2007 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 +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.JdwpConstants; +import gnu.classpath.jdwp.VMFrame; +import gnu.classpath.jdwp.VMVirtualMachine; +import gnu.classpath.jdwp.exception.JdwpException; +import gnu.classpath.jdwp.exception.JdwpInternalErrorException; +import gnu.classpath.jdwp.exception.NotImplementedException; +import gnu.classpath.jdwp.id.ObjectId; +import gnu.classpath.jdwp.id.ThreadId; +import gnu.classpath.jdwp.util.JdwpString; +import gnu.classpath.jdwp.util.Location; + +import java.io.DataOutputStream; +import java.io.IOException; +import java.nio.ByteBuffer; +import java.util.ArrayList; + +/** + * A class representing the ThreadReference Command Set. + * + * @author Aaron Luchko <aluchko@redhat.com> + */ +public class ThreadReferenceCommandSet + extends CommandSet +{ + public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command) + throws JdwpException + { + try + { + switch (command) + { + case JdwpConstants.CommandSet.ThreadReference.NAME: + executeName(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.SUSPEND: + executeSuspend(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.RESUME: + executeResume(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.STATUS: + executeStatus(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.THREAD_GROUP: + executeThreadGroup(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.FRAMES: + executeFrames(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.FRAME_COUNT: + executeFrameCount(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.OWNED_MONITORS: + executeOwnedMonitors(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.CURRENT_CONTENDED_MONITOR: + executeCurrentContendedMonitor(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.STOP: + executeStop(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.INTERRUPT: + executeInterrupt(bb, os); + break; + case JdwpConstants.CommandSet.ThreadReference.SUSPEND_COUNT: + executeSuspendCount(bb, os); + break; + default: + throw new NotImplementedException("Command " + command + + " not found in Thread Reference Command Set."); + } + } + 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 false; + } + + private void executeName(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + JdwpString.writeString(os, thread.getName()); + } + + private void executeSuspend(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + VMVirtualMachine.suspendThread(thread); + } + + private void executeResume(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + VMVirtualMachine.resumeThread(thread); + } + + private void executeStatus(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + int threadStatus = VMVirtualMachine.getThreadStatus(thread); + // There's only one possible SuspendStatus... + int suspendStatus = JdwpConstants.SuspendStatus.SUSPENDED; + + os.writeInt(threadStatus); + os.writeInt(suspendStatus); + } + + private void executeThreadGroup(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + ThreadGroup group = thread.getThreadGroup(); + ObjectId groupId = idMan.getObjectId(group); + groupId.write(os); + } + + private void executeFrames(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + int startFrame = bb.getInt(); + int length = bb.getInt(); + + ArrayList frames = VMVirtualMachine.getFrames(thread, startFrame, length); + os.writeInt(frames.size()); + for (int i = 0; i < frames.size(); i++) + { + VMFrame frame = (VMFrame) frames.get(i); + os.writeLong(frame.getId()); + Location loc = frame.getLocation(); + loc.write(os); + } + } + + private void executeFrameCount(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + + int frameCount = VMVirtualMachine.getFrameCount(thread); + os.writeInt(frameCount); + } + + private void executeOwnedMonitors(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + if (!VMVirtualMachine.canGetOwnedMonitorInfo) + { + String msg = "getting owned monitors is not supported"; + throw new NotImplementedException(msg); + } + + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + Object[] monitors = VMVirtualMachine.getOwnedMonitors(thread); + + os.write(monitors.length); + for (int i = 0; i < monitors.length; ++i) + { + ObjectId id = idMan.getObjectId(monitors[i]); + id.writeTagged(os); + } + } + + private void executeCurrentContendedMonitor(ByteBuffer bb, + DataOutputStream os) + throws JdwpException, IOException + { + if (!VMVirtualMachine.canGetCurrentContendedMonitor) + { + String msg = "getting current contended monitor is not supported"; + throw new NotImplementedException(msg); + } + + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + + Object monitor = VMVirtualMachine.getCurrentContendedMonitor(thread); + ObjectId id = idMan.getObjectId(monitor); + id.writeTagged(os); + } + + private void executeStop(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + ObjectId exception = idMan.readObjectId(bb); + Throwable throwable = (Throwable) exception.getObject(); + thread.stop (throwable); + } + + private void executeInterrupt(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + thread.interrupt(); + } + + private void executeSuspendCount(ByteBuffer bb, DataOutputStream os) + throws JdwpException, IOException + { + ThreadId tid = (ThreadId) idMan.readObjectId(bb); + Thread thread = tid.getThread(); + int suspendCount = VMVirtualMachine.getSuspendCount(thread); + os.writeInt(suspendCount); + } +} |