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annotate src/org/eclipse/jetty/util/thread/ThreadPool.java @ 844:bb42aa9c0571

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author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 19 Sep 2016 14:43:20 -0600
parents 3428c60d7cfc
children 88d3c8ff242a
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.util.thread;
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20
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21 import org.eclipse.jetty.util.component.LifeCycle;
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22
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23 /* ------------------------------------------------------------ */
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24 /** ThreadPool.
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25 *
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26 *
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27 */
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28 public interface ThreadPool
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29 {
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30 /* ------------------------------------------------------------ */
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31 public abstract boolean dispatch(Runnable job);
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32
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33 /* ------------------------------------------------------------ */
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34 /**
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35 * Blocks until the thread pool is {@link LifeCycle#stop stopped}.
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36 */
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37 public void join() throws InterruptedException;
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38
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39 /* ------------------------------------------------------------ */
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40 /**
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41 * @return The total number of threads currently in the pool
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42 */
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43 public int getThreads();
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44
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45 /* ------------------------------------------------------------ */
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46 /**
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47 * @return The number of idle threads in the pool
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48 */
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49 public int getIdleThreads();
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50
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51 /* ------------------------------------------------------------ */
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52 /**
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53 * @return True if the pool is low on threads
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54 */
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55 public boolean isLowOnThreads();
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56
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57
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58 /* ------------------------------------------------------------ */
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59 /* ------------------------------------------------------------ */
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60 public interface SizedThreadPool extends ThreadPool
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61 {
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62 public int getMinThreads();
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63 public int getMaxThreads();
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64 public void setMinThreads(int threads);
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65 public void setMaxThreads(int threads);
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66 }
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67 }