| /* |
| * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package com.sun.enterprise.admin.monitor.stats; |
| import org.glassfish.j2ee.statistics.Stats; |
| import org.glassfish.j2ee.statistics.CountStatistic; |
| |
| /** |
| * A Stats interface, to expose the monitoring information |
| * about the thread system of the JVM. |
| * @since 8.1 |
| */ |
| public interface JVMThreadStats extends Stats { |
| |
| /** |
| * Returns the current number of live daemon and non-daemon |
| * threads |
| * @return CountStatistic current number of live threads |
| */ |
| CountStatistic getThreadCount(); |
| |
| /** |
| * Returns the peak live thread count, since the JVM started or |
| * the peak was reset |
| * @return CountStatistic peak live thread count |
| */ |
| CountStatistic getPeakThreadCount(); |
| |
| /** |
| * Returns the total number of threads created and also started |
| * since the JVM started |
| * @return CountStatistic total number of threads started |
| */ |
| CountStatistic getTotalStartedThreadCount(); |
| |
| /** |
| * Returns the current number of live daemon threads |
| * @return CountStatistic current number of live daemon threads |
| */ |
| CountStatistic getDaemonThreadCount(); |
| |
| /** |
| * Returns a comma separated list of all live thread ids |
| * @return StringStatistic live thread ids |
| */ |
| StringStatistic getAllThreadIds(); |
| |
| /** |
| * Returns the CPU time for the current thread in nanoseconds, if |
| * CPU time measurement is enabled. Else returns -1 |
| * @return CountStatistic CPU time for the current thread |
| */ |
| CountStatistic getCurrentThreadCPUTime(); |
| |
| /** |
| * Returns a comma separated list of thread ids that are |
| * monitor deadlocked |
| * @return StringStatistic |
| */ |
| StringStatistic getMonitorDeadlockedThreads(); |
| |
| } |