/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.mmtk.utility.gcspy;
import org.mmtk.utility.Log;
import org.mmtk.utility.options.*;
import org.mmtk.vm.VM;
import org.mmtk.vm.gcspy.ServerInterpreter;
import org.mmtk.vm.gcspy.Util;
import org.vmmagic.pragma.*;
/**
* This class implements collector-independent GCspy functionality to start
* the GCspy server. It handles command-line parameters for port number,
* whether the VM should wait for a GCspy client to connect, and tile size.
* Most importantly, it calls the Plan's startGCspyServer method which
* creates a new ServerInterpreter, and adds events and space drivers.
*/
@Uninterruptible public class GCspy {
/****************************************************************************
*
* Class variables
*/
/**
*
*/
public static final Util util = VM.newGCspyUtil();
public static final ServerInterpreter server = VM.newGCspyServerInterpreter();
/****************************************************************************
*
* Initialization
*/
/**
*
*/
@Interruptible
public static void createOptions() {
Options.gcspyPort = new GCspyPort();
Options.gcspyWait = new GCspyWait();
Options.gcspyTileSize = new GCspyTileSize();
}
/**
* Get the number of the port that GCspy communicates on
*
* @return the GCspy port number
*/
public static int getGCspyPort() {
return Options.gcspyPort.getValue();
}
/**
* Should the VM wait for GCspy to connect?
*
* @return whether the VM should wait for the visualiser to connect
*/
public static boolean getGCspyWait() {
return Options.gcspyWait.getValue();
}
/**
* Start the GCspy server.
* WARNING: allocates memory indirectly
*/
@Interruptible
public static void startGCspyServer() {
int port = getGCspyPort();
Log.write("GCspy.startGCspyServer, port=", port);
Log.write(", wait=");
Log.writeln(getGCspyWait());
if (port > 0) {
VM.activePlan.global().startGCspyServer(port, getGCspyWait());
//Log.writeln("gcspy thread booted");
}
}
}