--- /dev/null
+/* CommandSet.java -- An interface defining JDWP Command Sets
+ 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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.exception.JdwpException;
+
+import java.io.DataOutputStream;
+import java.nio.ByteBuffer;
+
+/**
+ * A class representing a JDWP Command Set. This class serves as a generic
+ * interface for all Command Sets types used by JDWP.
+ *
+ * @author Aaron Luchko <aluchko@redhat.com>
+ */
+public interface CommandSet
+{
+ /**
+ * Runs the given command with the data in distr and writes the data for the
+ * reply packet to ostr.
+ *
+ * @param bb holds the data portion of the Command Packet
+ * @param os data portion of the Reply Packet will be written here
+ * @param command the command field of the Command Packet
+ * @return true if the JDWP layer should shut down in response to this packet
+ * @throws JdwpException command wasn't carried out successfully
+ */
+ public boolean runCommand(ByteBuffer bb, DataOutputStream os,
+ byte command)
+ throws JdwpException;
+}
package gnu.classpath.jdwp.processor;
-import gnu.classpath.jdwp.Jdwp;
-import gnu.classpath.jdwp.event.Event;
+import gnu.classpath.jdwp.JdwpConstants;
import gnu.classpath.jdwp.exception.JdwpException;
-import gnu.classpath.jdwp.transport.JdwpConnection;
import gnu.classpath.jdwp.transport.JdwpCommandPacket;
+import gnu.classpath.jdwp.transport.JdwpConnection;
import gnu.classpath.jdwp.transport.JdwpPacket;
import gnu.classpath.jdwp.transport.JdwpReplyPacket;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
import java.io.IOException;
+import java.nio.ByteBuffer;
/**
* This class is responsible for processing packets from the
// Shutdown this thread?
private boolean _shutdown;
+
+ // A Mapping of the command set (Byte) to the specific CommandSet
+ private CommandSet[] _sets;
+
+ // Contents of the ReplyPackets data field
+ private ByteArrayOutputStream _outputBytes;
+ // Output stream around _outputBytes
+ private DataOutputStream _os;
+
/**
* Constructs a new <code>PacketProcessor</code> object
* Connection must be validated before getting here!
{
_connection = con;
_shutdown = false;
+
+ // MAXIMUM is the value of the largest command set we may receive
+ _sets = new CommandSet[JdwpConstants.CommandSet.MAXIMUM + 1];
+ _outputBytes = new ByteArrayOutputStream();
+ _os = new DataOutputStream (_outputBytes);
+
+ // Create all the Command Sets and add them to our array
+ _sets[JdwpConstants.CommandSet.VirtualMachine.CS_VALUE] =
+ new VirtualMachineCommandSet();
+ _sets[JdwpConstants.CommandSet.ReferenceType.CS_VALUE] =
+ new ReferenceTypeCommandSet();
+ _sets[JdwpConstants.CommandSet.ClassType.CS_VALUE] =
+ new ClassTypeCommandSet();
+ _sets[JdwpConstants.CommandSet.ArrayType.CS_VALUE] =
+ new ArrayTypeCommandSet();
+ _sets[JdwpConstants.CommandSet.InterfaceType.CS_VALUE] =
+ new InterfaceTypeCommandSet();
+ _sets[JdwpConstants.CommandSet.Method.CS_VALUE] =
+ new MethodCommandSet();
+ _sets[JdwpConstants.CommandSet.Field.CS_VALUE] =
+ new FieldCommandSet();
+ _sets[JdwpConstants.CommandSet.ObjectReference.CS_VALUE] =
+ new ObjectReferenceCommandSet();
+ _sets[JdwpConstants.CommandSet.StringReference.CS_VALUE] =
+ new StringReferenceCommandSet();
+ _sets[JdwpConstants.CommandSet.ThreadReference.CS_VALUE] =
+ new ThreadReferenceCommandSet();
+ _sets[JdwpConstants.CommandSet.ThreadGroupReference.CS_VALUE] =
+ new ThreadGroupReferenceCommandSet();
+ _sets[JdwpConstants.CommandSet.ArrayReference.CS_VALUE] =
+ new ArrayReferenceCommandSet();
+ _sets[JdwpConstants.CommandSet.ClassLoaderReference.CS_VALUE] =
+ new ClassLoaderReferenceCommandSet();
+ _sets[JdwpConstants.CommandSet.EventRequest.CS_VALUE] =
+ new EventRequestCommandSet();
+ _sets[JdwpConstants.CommandSet.StackFrame.CS_VALUE] =
+ new StackFrameCommandSet();
+ _sets[JdwpConstants.CommandSet.ClassObjectReference.CS_VALUE] =
+ new ClassObjectReferenceCommandSet();
}
-
+
/**
* Main run routine for this thread. Will loop getting packets
* from the connection and processing them.
*/
public void run ()
{
- while (!_shutdown)
+ try
{
- _processOnePacket ();
+ while (!_shutdown)
+ {
+ _processOnePacket ();
+ }
}
+ catch (IOException ex)
+ {
+ ex.printStackTrace();
+ }
+ // Time to shutdown, tell the _connection thread to stop reading
+ _connection.shutdown();
}
-
+
/**
* Shutdown the packet processor
*/
_shutdown = true;
interrupt ();
}
-
+
// Helper function which actually does all the work of waiting
// for a packet and getting it processed.
private void _processOnePacket ()
+ throws IOException
{
JdwpPacket pkt = _connection.getPacket ();
- if (pkt instanceof JdwpReplyPacket)
+
+ if (!(pkt instanceof JdwpCommandPacket))
{
- // We're not supposed to get these from the debugger!
- // Drop it on the floor
- return;
+ // We're not supposed to get these from the debugger!
+ // Drop it on the floor
+ return;
}
-
+
if (pkt != null)
{
- JdwpReplyPacket reply;
- try
- {
- // !! process packet here !!
- reply = new JdwpReplyPacket (pkt, (short) 0);
- }
- catch (JdwpException ex)
- {
- reply = new JdwpReplyPacket (pkt, ex.getErrorCode ());
- }
-
- try
- {
- _connection.sendPacket (reply);
- }
- catch (IOException ioe)
- {
- // Not much we can do...
- }
+ JdwpCommandPacket commandPkt = (JdwpCommandPacket) pkt;
+ JdwpReplyPacket reply = new JdwpReplyPacket(commandPkt);
+
+ // Reset our output stream
+ _outputBytes.reset();
+
+ // Create a ByteBuffer around the command packet
+ ByteBuffer bb = ByteBuffer.wrap(commandPkt.getData());
+ byte command = commandPkt.getCommand();
+ byte commandSet = commandPkt.getCommandSet();
+
+ CommandSet set = null;
+ try
+ {
+ // There is no command set with value 0
+ if (commandSet > 0 && commandSet < _sets.length)
+ {
+ set = _sets[commandPkt.getCommandSet()];
+ }
+ if (set != null)
+ {
+ _shutdown = set.runCommand(bb, _os, command);
+ reply.setData(_outputBytes.toByteArray());
+ }
+ else
+ {
+ // This command set wasn't in our tree
+ reply.setErrorCode(JdwpConstants.Error.NOT_IMPLEMENTED);
+ }
+ }
+ catch (JdwpException ex)
+ {
+ reply.setErrorCode(ex.getErrorCode ());
+ }
+ _connection.sendPacket (reply);
}
}
}
projects / thirdparty / gcc.git / commitdiff
