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 new PacketProcessor 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... + } + } + } +}