/*
* Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.management;
import sun.management.counter.Counter;
/**
* Hotspot internal management interface for the thread system.
*/
public interface HotspotThreadMBean {
/**
* Returns the current number of VM internal threads.
*
* @return the current number of VM internal threads.
*/
public int getInternalThreadCount();
/**
* Returns a <tt>Map</tt> of the name of all VM internal threads
* to the thread CPU time in nanoseconds. The returned value is
* of nanoseconds precision but not necessarily nanoseconds accuracy.
* <p>
*
* @return a <tt>Map</tt> object of the name of all VM internal threads
* to the thread CPU time in nanoseconds.
*
* @throws java.lang.UnsupportedOperationException if the Java virtual
* machine does not support CPU time measurement.
*
* @see java.lang.management.ThreadMBean#isThreadCpuTimeSupported
*/
public java.util.Map<String,Long> getInternalThreadCpuTimes();
/**
* Returns a list of internal counters maintained in the Java
* virtual machine for the thread system.
*
* @return a list of internal counters maintained in the VM
* for the thread system.
*/
public java.util.List<Counter> getInternalThreadingCounters();
}