Source for gnu.classpath.jdwp.event.VmInitEvent

   1: /* VmInitEvent.java -- An event specifying that the VM has started
   2:    Copyright (C) 2005 Free Software Foundation
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: terms of your choice, provided that you also meet, for each linked
  32: independent module, the terms and conditions of the license of that
  33: module.  An independent module is a module which is not derived from
  34: or based on this library.  If you modify this library, you may extend
  35: this exception to your version of the library, but you are not
  36: obligated to do so.  If you do not wish to do so, delete this
  37: exception statement from your version. */
  38: 
  39: 
  40: package gnu.classpath.jdwp.event;
  41: 
  42: import gnu.classpath.jdwp.JdwpConstants;
  43: import gnu.classpath.jdwp.VMIdManager;
  44: import gnu.classpath.jdwp.id.ThreadId;
  45: 
  46: import java.io.DataOutputStream;
  47: import java.io.IOException;
  48: 
  49: /**
  50:  * "Notification of initialization of a target VM. This event is
  51:  * received before the main thread is started and before any application
  52:  * code has been executed." -- JDWP 1.4.2
  53:  *
  54:  * @author Keith Seitz  (keiths@redhat.com)
  55:  */
  56: public class VmInitEvent
  57:   extends Event
  58: {
  59:   private Thread _initialThread;
  60: 
  61:   /**
  62:    * Constructs a <code>VmInitEvent</code> object
  63:    *
  64:    * @param thread  the initial thread
  65:    */
  66:   public VmInitEvent (Thread thread)
  67:   {
  68:     super (JdwpConstants.EventKind.VM_INIT);
  69:     _initialThread = thread;
  70:   }
  71: 
  72:   /**
  73:    * Returns a specific filtering parameter for this event.
  74:    * This event has no valid types.
  75:    *
  76:    * @param type  the type of parameter desired
  77:    * @returns the desired parameter or <code>null</code>
  78:    */
  79:   public Object getParameter (int type)
  80:   {
  81:     return null;
  82:   }
  83: 
  84:   /**
  85:    * Writes out event-specific data
  86:    */
  87:   protected void _writeData (DataOutputStream outStream)
  88:     throws IOException
  89:   {
  90:     VMIdManager idm = VMIdManager.getDefault();
  91:     ThreadId tid = (ThreadId) idm.getObjectId (_initialThread);
  92:     tid.write (outStream);
  93:   }
  94: }