Index: gnu/classpath/jdwp/processor/PacketProcessor.java =================================================================== RCS file: gnu/classpath/jdwp/processor/PacketProcessor.java diff -N gnu/classpath/jdwp/processor/PacketProcessor.java --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ gnu/classpath/jdwp/processor/PacketProcessor.java 14 Jun 2005 00:43:38 -0000 @@ -0,0 +1,139 @@ +/* PacketProcessor.java -- a thread which processes command packets + from the debugger + 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.Jdwp; +import gnu.classpath.jdwp.event.Event; +import gnu.classpath.jdwp.exception.JdwpException; +import gnu.classpath.jdwp.transport.JdwpConnection; +import gnu.classpath.jdwp.transport.JdwpCommandPacket; +import gnu.classpath.jdwp.transport.JdwpPacket; +import gnu.classpath.jdwp.transport.JdwpReplyPacket; + +import java.io.IOException; + +/** + * This class is responsible for processing packets from the + * debugger. It waits for an available packet from the connection + * (address@hidden gnu.classpath.jdwp.transport.JdwpConnection}) and then + * processes the packet and any reply. + * + * @author Keith Seitz
+ */ +public class PacketProcessor + extends Thread +{ + // The connection to the debugger + private JdwpConnection _connection; + + // Shutdown this thread? + private boolean _shutdown; + + /** + * Constructs a newPacketProcessor
object
+ * Connection must be validated before getting here!
+ *
+ * @param con the connection
+ */
+ public PacketProcessor (JdwpConnection con)
+ {
+ _connection = con;
+ _shutdown = false;
+ }
+
+ /**
+ * Main run routine for this thread. Will loop getting packets
+ * from the connection and processing them.
+ */
+ public void run ()
+ {
+ while (!_shutdown)
+ {
+ _processOnePacket ();
+ }
+ }
+
+ /**
+ * Shutdown the packet processor
+ */
+ public void shutdown ()
+ {
+ _shutdown = true;
+ interrupt ();
+ }
+
+ // Helper function which actually does all the work of waiting
+ // for a packet and getting it processed.
+ private void _processOnePacket ()
+ {
+ JdwpPacket pkt = _connection.getPacket ();
+ if (pkt instanceof JdwpReplyPacket)
+ {
+ // 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 JdwpPacket (pkt, 0);
+ }
+ catch (JdwpException ex)
+ {
+ reply = new JdwpReplyPacket (pkt, ex.getErrorCode ());
+ }
+
+
+ try
+ {
+ _connection.sendPacket (reply);
+ }
+ catch (IOException ioe)
+ {
+ // Not much we can do...
+ }
+ }
+ }
+}