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+/* ThreadStartEvent.java -- An event specifying that a new thread
+ has started in the virtual machine
+ Copyright (C) 2005, 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. */
+
+
+package gnu.classpath.jdwp.event;
+
+import gnu.classpath.jdwp.JdwpConstants;
+import gnu.classpath.jdwp.VMIdManager;
+import gnu.classpath.jdwp.id.ThreadId;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+/**
+ * "Notification of a new running thread in the target VM. The new
+ * thread can be the result of a call to {@link java.lang.Thread#start} or
+ * the result of attaching a new thread to the VM though JNI. The
+ * notification is generated by the new thread some time before its
+ * execution starts. Because of this timing, it is possible to receive
+ * other events for the thread before this event is received. (Notably,
+ * Method Entry Events and Method Exit Events might occur during thread
+ * initialization. It is also possible for the VirtualMachine AllThreads
+ * command to return a thread before its thread start event is received.
+ *
+ * <p>Note that this event gives no information about the creation of the
+ * thread object which may have happened much earlier, depending on the
+ * VM being debugged." -- JDWP 1.4.2
+ *
+ * @author Keith Seitz (keiths@redhat.com)
+ */
+public class ThreadStartEvent
+ extends Event
+{
+ private Thread _thread;
+
+ /**
+ * Constructs a new ThreadStartEvent object
+ *
+ * @param thread the thread ID in which event occurred
+ */
+ public ThreadStartEvent (Thread thread) {
+ super (JdwpConstants.EventKind.THREAD_START);
+ _thread = thread;
+ }
+
+ /**
+ * Returns a specific filtering parameter for this event.
+ * Valid types are ThreadId.
+ *
+ * @param type the type of parameter desired
+ * @returns the desired parameter or <code>null</code>
+ */
+ public Object getParameter (int type)
+ {
+ if (type == EVENT_THREAD)
+ return _thread;
+
+ return null;
+ }
+
+ /**
+ * Writes the event to the given stream
+ *
+ * @param outStream the output stream to write the event to
+ */
+ protected void _writeData (DataOutputStream outStream)
+ throws IOException
+ {
+ VMIdManager idm = VMIdManager.getDefault();
+ ThreadId tid = (ThreadId) idm.getObjectId (_thread);
+ tid.write (outStream);
+ }
+}