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gnu.classpath.jdwp.transport

Class JdwpConnection

Implemented Interfaces:
Runnable
public class JdwpConnection
extends Thread
A connection via some transport to some JDWP-speaking entity. This is also a thread which handles all communications to/from the debugger. While access to the transport layer may be accessed by several threads, start-up and initialization should not be allowed to occur more than once.

This class is also a thread that is responsible for pulling packets off the wire and sticking them in a queue for packet processing threads.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

JdwpConnection(ThreadGroup group, ITransport transport)
Creates a new JdwpConnection instance

Method Summary

JdwpPacket
getPacket()
Returns a packet from the queue of ready packets
void
initialize()
Initializes the connection, including connecting to socket or shared memory endpoint
void
run()
Main run method for the thread.
void
sendEvents(EventRequest[] requests, Event[] events, byte suspendPolicy)
Send an event notification to the debugger.
void
sendPacket(JdwpPacket pkt)
Send a packet to the debugger
void
shutdown()
Shutdown the connection

Methods inherited from class java.lang.Thread

StackTraceElement[]> getAllStackTraces, activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JdwpConnection

public JdwpConnection(ThreadGroup group,
                      ITransport transport)
Creates a new JdwpConnection instance
Parameters:
transport - the transport to use for communications

Method Details

getPacket

public JdwpPacket getPacket()
Returns a packet from the queue of ready packets

initialize

public void initialize()
            throws TransportException
Initializes the connection, including connecting to socket or shared memory endpoint
Throws:
TransportException - if initialization fails

run

public void run()
Main run method for the thread. This thread loops waiting for packets to be read via the connection. When a packet is complete and ready for processing, it places the packet in a queue that can be accessed via getPacket
Specified by:
run in interface Runnable
Overrides:
run in interface Thread

sendEvents

public void sendEvents(EventRequest[] requests,
                       Event[] events,
                       byte suspendPolicy)
            throws IOException
Send an event notification to the debugger. Note that this method will only send out one notification: all the events are passed in a single Event.COMPOSITE packet.
Parameters:
requests - debugger requests for events
events - the events to send
suspendPolicy - the suspend policy enforced by the VM
Throws:
IOException -

sendPacket

public void sendPacket(JdwpPacket pkt)
            throws IOException
Send a packet to the debugger
Parameters:
pkt - a JdwpPacket to send
Throws:
IOException -

shutdown

public void shutdown()
Shutdown the connection
JdwpConnection.java -- A JDWP-speaking connection Copyright (C) 2005, 2006, 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.

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