| /* | |
| * Copyright (c) 2004, 2020, 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.tools.jconsole; | |
| import java.util.*; | |
| public class Worker extends Thread { | |
| ArrayList<Runnable> jobs = new ArrayList<Runnable>(); | |
| private volatile boolean stopped = false; | |
| public Worker(String name) { | |
| super("Worker-"+name); | |
| setPriority(NORM_PRIORITY - 1); | |
| } | |
| public void run() { | |
| while (!stopped) { | |
| Runnable job; | |
| synchronized(jobs) { | |
| while (!stopped && jobs.size() == 0) { | |
| try { | |
| jobs.wait(); | |
| } catch (InterruptedException ex) { | |
| } | |
| } | |
| if(stopped) break; | |
| job = jobs.remove(0); | |
| } | |
| job.run(); | |
| } | |
| } | |
| public void stopWorker() { | |
| stopped = true; | |
| synchronized(jobs) { | |
| jobs.notify(); | |
| } | |
| } | |
| public void add(Runnable job) { | |
| synchronized(jobs) { | |
| jobs.add(job); | |
| jobs.notify(); | |
| } | |
| } | |
| public boolean queueFull() { | |
| synchronized(jobs) { | |
| return (jobs.size() > 0); | |
| } | |
| } | |
| } |