| /* |
| * 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(); |
| } |
| |
| /** |
| * The boot method is called by the runtime immediately after |
| * command-line arguments are available. Note that allocation must |
| * be supported prior to this point because the runtime |
| * infrastructure may require allocation in order to parse the |
| * command line arguments. |
| */ |
| public static void postBoot() { } |
| |
| /** |
| * 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="); Log.write(port); |
| Log.write(", wait="); |
| Log.writeln(getGCspyWait()); |
| if (port > 0) { |
| VM.activePlan.global().startGCspyServer(port, getGCspyWait()); |
| //Log.writeln("gcspy thread booted"); |
| } |
| } |
| } |
| |