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annotate src/org/eclipse/jetty/util/thread/QueuedThreadPool.java @ 810:022ff91bde60

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fix session pages
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 08 Sep 2016 18:25:43 -0600
parents 3428c60d7cfc
children 8e9db0bbf4f9
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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
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20 package org.eclipse.jetty.util.thread;
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21
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22 import java.io.IOException;
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23 import java.util.ArrayList;
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24 import java.util.Arrays;
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25 import java.util.List;
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26 import java.util.concurrent.ArrayBlockingQueue;
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27 import java.util.concurrent.BlockingQueue;
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28 import java.util.concurrent.ConcurrentLinkedQueue;
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29 import java.util.concurrent.Executor;
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30 import java.util.concurrent.RejectedExecutionException;
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31 import java.util.concurrent.TimeUnit;
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32 import java.util.concurrent.atomic.AtomicInteger;
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33 import java.util.concurrent.atomic.AtomicLong;
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34
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35 import org.eclipse.jetty.util.BlockingArrayQueue;
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36 import org.eclipse.jetty.util.component.AbstractLifeCycle;
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37 import org.eclipse.jetty.util.component.AggregateLifeCycle;
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38 import org.eclipse.jetty.util.component.Dumpable;
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39 import org.eclipse.jetty.util.component.LifeCycle;
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40 import org.eclipse.jetty.util.log.Log;
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41 import org.eclipse.jetty.util.log.Logger;
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42 import org.eclipse.jetty.util.thread.ThreadPool.SizedThreadPool;
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43
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44 public class QueuedThreadPool extends AbstractLifeCycle implements SizedThreadPool, Executor, Dumpable
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45 {
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46 private static final Logger LOG = Log.getLogger(QueuedThreadPool.class);
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47
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48 private final AtomicInteger _threadsStarted = new AtomicInteger();
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49 private final AtomicInteger _threadsIdle = new AtomicInteger();
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50 private final AtomicLong _lastShrink = new AtomicLong();
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51 private final ConcurrentLinkedQueue<Thread> _threads=new ConcurrentLinkedQueue<Thread>();
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52 private final Object _joinLock = new Object();
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53 private BlockingQueue<Runnable> _jobs;
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54 private String _name;
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55 private int _maxIdleTimeMs=60000;
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56 private int _maxThreads=254;
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57 private int _minThreads=8;
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58 private int _maxQueued=-1;
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59 private int _priority=Thread.NORM_PRIORITY;
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60 private boolean _daemon=false;
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61 private int _maxStopTime=100;
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62 private boolean _detailedDump=false;
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63
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64 /* ------------------------------------------------------------------- */
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65 /** Construct
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66 */
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67 public QueuedThreadPool()
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68 {
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69 _name="qtp"+super.hashCode();
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70 }
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71
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72 /* ------------------------------------------------------------------- */
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73 /** Construct
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74 */
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75 public QueuedThreadPool(int maxThreads)
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76 {
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77 this();
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78 setMaxThreads(maxThreads);
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79 }
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80
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81 /* ------------------------------------------------------------------- */
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82 /** Construct
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83 */
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84 public QueuedThreadPool(BlockingQueue<Runnable> jobQ)
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85 {
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86 this();
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87 _jobs=jobQ;
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88 _jobs.clear();
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89 }
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90
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91
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92 /* ------------------------------------------------------------ */
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93 @Override
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94 protected void doStart() throws Exception
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95 {
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96 super.doStart();
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97 _threadsStarted.set(0);
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98
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99 if (_jobs==null)
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100 {
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101 _jobs=_maxQueued>0 ?new ArrayBlockingQueue<Runnable>(_maxQueued)
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102 :new BlockingArrayQueue<Runnable>(_minThreads,_minThreads);
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103 }
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104
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105 int threads=_threadsStarted.get();
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106 while (isRunning() && threads<_minThreads)
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107 {
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108 startThread(threads);
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109 threads=_threadsStarted.get();
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110 }
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111 }
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112
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113 /* ------------------------------------------------------------ */
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114 @Override
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115 protected void doStop() throws Exception
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116 {
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117 super.doStop();
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118 long start=System.currentTimeMillis();
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119
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120 // let jobs complete naturally for a while
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121 while (_threadsStarted.get()>0 && (System.currentTimeMillis()-start) < (_maxStopTime/2))
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122 Thread.sleep(1);
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123
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124 // kill queued jobs and flush out idle jobs
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125 _jobs.clear();
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126 Runnable noop = new Runnable(){public void run(){}};
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127 for (int i=_threadsIdle.get();i-->0;)
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128 _jobs.offer(noop);
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129 Thread.yield();
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130
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131 // interrupt remaining threads
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132 if (_threadsStarted.get()>0)
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133 for (Thread thread : _threads)
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134 thread.interrupt();
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135
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136 // wait for remaining threads to die
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137 while (_threadsStarted.get()>0 && (System.currentTimeMillis()-start) < _maxStopTime)
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138 {
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139 Thread.sleep(1);
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140 }
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141 Thread.yield();
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142 int size=_threads.size();
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143 if (size>0)
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144 {
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145 LOG.warn(size+" threads could not be stopped");
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146
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147 if (size==1 || LOG.isDebugEnabled())
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148 {
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149 for (Thread unstopped : _threads)
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150 {
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151 LOG.info("Couldn't stop "+unstopped);
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152 for (StackTraceElement element : unstopped.getStackTrace())
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153 {
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154 LOG.info(" at "+element);
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155 }
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156 }
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157 }
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158 }
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159
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160 synchronized (_joinLock)
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161 {
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162 _joinLock.notifyAll();
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163 }
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164 }
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165
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166 /* ------------------------------------------------------------ */
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167 /**
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168 * Delegated to the named or anonymous Pool.
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169 */
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170 public void setDaemon(boolean daemon)
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171 {
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172 _daemon=daemon;
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173 }
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174
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175 /* ------------------------------------------------------------ */
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176 /** Set the maximum thread idle time.
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177 * Threads that are idle for longer than this period may be
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178 * stopped.
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179 * Delegated to the named or anonymous Pool.
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180 * @see #getMaxIdleTimeMs
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181 * @param maxIdleTimeMs Max idle time in ms.
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182 */
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183 public void setMaxIdleTimeMs(int maxIdleTimeMs)
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184 {
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185 _maxIdleTimeMs=maxIdleTimeMs;
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186 }
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187
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188 /* ------------------------------------------------------------ */
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189 /**
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190 * @param stopTimeMs maximum total time that stop() will wait for threads to die.
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191 */
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192 public void setMaxStopTimeMs(int stopTimeMs)
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193 {
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194 _maxStopTime = stopTimeMs;
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195 }
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196
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197 /* ------------------------------------------------------------ */
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198 /** Set the maximum number of threads.
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199 * Delegated to the named or anonymous Pool.
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200 * @see #getMaxThreads
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201 * @param maxThreads maximum number of threads.
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202 */
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203 public void setMaxThreads(int maxThreads)
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204 {
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205 _maxThreads=maxThreads;
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206 if (_minThreads>_maxThreads)
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207 _minThreads=_maxThreads;
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208 }
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209
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210 /* ------------------------------------------------------------ */
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211 /** Set the minimum number of threads.
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212 * Delegated to the named or anonymous Pool.
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213 * @see #getMinThreads
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214 * @param minThreads minimum number of threads
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215 */
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216 public void setMinThreads(int minThreads)
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217 {
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218 _minThreads=minThreads;
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219
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220 if (_minThreads>_maxThreads)
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221 _maxThreads=_minThreads;
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222
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223 int threads=_threadsStarted.get();
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224 while (isStarted() && threads<_minThreads)
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225 {
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226 startThread(threads);
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227 threads=_threadsStarted.get();
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228 }
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229 }
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230
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231 /* ------------------------------------------------------------ */
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232 /**
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233 * @param name Name of the BoundedThreadPool to use when naming Threads.
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234 */
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235 public void setName(String name)
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236 {
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237 if (isRunning())
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238 throw new IllegalStateException("started");
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239 _name= name;
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240 }
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241
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242 /* ------------------------------------------------------------ */
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243 /** Set the priority of the pool threads.
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244 * @param priority the new thread priority.
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245 */
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246 public void setThreadsPriority(int priority)
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247 {
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248 _priority=priority;
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249 }
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250
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251 /* ------------------------------------------------------------ */
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252 /**
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253 * @return maximum queue size
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254 */
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255 public int getMaxQueued()
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256 {
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257 return _maxQueued;
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258 }
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259
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260 /* ------------------------------------------------------------ */
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261 /**
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262 * @param max job queue size
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263 */
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264 public void setMaxQueued(int max)
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265 {
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266 if (isRunning())
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267 throw new IllegalStateException("started");
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268 _maxQueued=max;
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269 }
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270
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271 /* ------------------------------------------------------------ */
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272 /** Get the maximum thread idle time.
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273 * Delegated to the named or anonymous Pool.
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274 * @see #setMaxIdleTimeMs
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275 * @return Max idle time in ms.
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276 */
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277 public int getMaxIdleTimeMs()
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278 {
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279 return _maxIdleTimeMs;
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280 }
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281
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282 /* ------------------------------------------------------------ */
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283 /**
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284 * @return maximum total time that stop() will wait for threads to die.
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285 */
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286 public int getMaxStopTimeMs()
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287 {
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288 return _maxStopTime;
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289 }
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290
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291 /* ------------------------------------------------------------ */
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292 /** Set the maximum number of threads.
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293 * Delegated to the named or anonymous Pool.
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294 * @see #setMaxThreads
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295 * @return maximum number of threads.
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296 */
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297 public int getMaxThreads()
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298 {
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299 return _maxThreads;
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300 }
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301
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302 /* ------------------------------------------------------------ */
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303 /** Get the minimum number of threads.
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304 * Delegated to the named or anonymous Pool.
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305 * @see #setMinThreads
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306 * @return minimum number of threads.
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307 */
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308 public int getMinThreads()
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309 {
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310 return _minThreads;
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311 }
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312
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313 /* ------------------------------------------------------------ */
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314 /**
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315 * @return The name of the BoundedThreadPool.
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316 */
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317 public String getName()
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318 {
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319 return _name;
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320 }
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321
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322 /* ------------------------------------------------------------ */
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323 /** Get the priority of the pool threads.
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324 * @return the priority of the pool threads.
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325 */
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326 public int getThreadsPriority()
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327 {
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328 return _priority;
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329 }
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330
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331 /* ------------------------------------------------------------ */
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332 /**
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333 * Delegated to the named or anonymous Pool.
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334 */
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335 public boolean isDaemon()
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336 {
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337 return _daemon;
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338 }
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parents:
diff changeset
339
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parents:
diff changeset
340 /* ------------------------------------------------------------ */
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parents:
diff changeset
341 public boolean isDetailedDump()
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parents:
diff changeset
342 {
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parents:
diff changeset
343 return _detailedDump;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
344 }
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parents:
diff changeset
345
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
346 /* ------------------------------------------------------------ */
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parents:
diff changeset
347 public void setDetailedDump(boolean detailedDump)
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parents:
diff changeset
348 {
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parents:
diff changeset
349 _detailedDump = detailedDump;
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parents:
diff changeset
350 }
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parents:
diff changeset
351
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
352 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
353 public boolean dispatch(Runnable job)
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parents:
diff changeset
354 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
355 if (isRunning())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
356 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
357 final int jobQ = _jobs.size();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
358 final int idle = getIdleThreads();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
359 if(_jobs.offer(job))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
360 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
361 // If we had no idle threads or the jobQ is greater than the idle threads
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
362 if (idle==0 || jobQ>idle)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
363 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
364 int threads=_threadsStarted.get();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
365 if (threads<_maxThreads)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
366 startThread(threads);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
367 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
368 return true;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
369 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
370 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
371 LOG.debug("Dispatched {} to stopped {}",job,this);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
372 return false;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
373 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
374
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
375 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
376 public void execute(Runnable job)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
377 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
378 if (!dispatch(job))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
379 throw new RejectedExecutionException();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
380 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
381
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
382 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
383 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
384 * Blocks until the thread pool is {@link LifeCycle#stop stopped}.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
385 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
386 public void join() throws InterruptedException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
387 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
388 synchronized (_joinLock)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
389 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
390 while (isRunning())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
391 _joinLock.wait();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
392 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
393
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
394 while (isStopping())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
395 Thread.sleep(1);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
396 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
397
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
398 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
399 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
400 * @return The total number of threads currently in the pool
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
401 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
402 public int getThreads()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
403 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
404 return _threadsStarted.get();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
405 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
406
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
407 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
408 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
409 * @return The number of idle threads in the pool
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
410 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
411 public int getIdleThreads()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
412 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
413 return _threadsIdle.get();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
414 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
415
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
416 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
417 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
418 * @return True if the pool is at maxThreads and there are not more idle threads than queued jobs
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
419 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
420 public boolean isLowOnThreads()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
421 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
422 return _threadsStarted.get()==_maxThreads && _jobs.size()>=_threadsIdle.get();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
423 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
424
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
425 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
426 private boolean startThread(int threads)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
427 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
428 final int next=threads+1;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
429 if (!_threadsStarted.compareAndSet(threads,next))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
430 return false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
431
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
432 boolean started=false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
433 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
434 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
435 Thread thread=newThread(_runnable);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
436 thread.setDaemon(_daemon);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
437 thread.setPriority(_priority);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
438 thread.setName(_name+"-"+thread.getId());
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
439 _threads.add(thread);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
440
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
441 thread.start();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
442 started=true;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
443 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
444 finally
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
445 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
446 if (!started)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
447 _threadsStarted.decrementAndGet();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
448 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
449 return started;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
450 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
451
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
452 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
453 protected Thread newThread(Runnable runnable)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
454 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
455 return new Thread(runnable);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
456 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
457
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
458
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
459 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
460 public String dump()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
461 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
462 return AggregateLifeCycle.dump(this);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
463 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
464
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
465 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
466 public void dump(Appendable out, String indent) throws IOException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
467 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
468 List<Object> dump = new ArrayList<Object>(getMaxThreads());
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
469 for (final Thread thread: _threads)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
470 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
471 final StackTraceElement[] trace=thread.getStackTrace();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
472 boolean inIdleJobPoll=false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
473 // trace can be null on early java 6 jvms
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
474 if (trace != null)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
475 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
476 for (StackTraceElement t : trace)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
477 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
478 if ("idleJobPoll".equals(t.getMethodName()))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
479 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
480 inIdleJobPoll = true;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
481 break;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
482 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
483 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
484 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
485 final boolean idle=inIdleJobPoll;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
486
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
487 if (_detailedDump)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
488 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
489 dump.add(new Dumpable()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
490 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
491 public void dump(Appendable out, String indent) throws IOException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
492 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
493 out.append(String.valueOf(thread.getId())).append(' ').append(thread.getName()).append(' ').append(thread.getState().toString()).append(idle?" IDLE":"").append('\n');
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
494 if (!idle)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
495 AggregateLifeCycle.dump(out,indent,Arrays.asList(trace));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
496 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
497
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
498 public String dump()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
499 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
500 return null;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
501 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
502 });
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
503 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
504 else
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
505 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
506 dump.add(thread.getId()+" "+thread.getName()+" "+thread.getState()+" @ "+(trace.length>0?trace[0]:"???")+(idle?" IDLE":""));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
507 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
508 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
509
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
510 AggregateLifeCycle.dumpObject(out,this);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
511 AggregateLifeCycle.dump(out,indent,dump);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
512
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
513 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
514
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
515
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
516 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
517 @Override
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
518 public String toString()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
519 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
520 return _name+"{"+getMinThreads()+"<="+getIdleThreads()+"<="+getThreads()+"/"+getMaxThreads()+","+(_jobs==null?-1:_jobs.size())+"}";
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
521 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
522
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
523 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
524 private Runnable idleJobPoll() throws InterruptedException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
525 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
526 return _jobs.poll(_maxIdleTimeMs,TimeUnit.MILLISECONDS);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
527 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
528
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
529 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
530 private Runnable _runnable = new Runnable()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
531 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
532 public void run()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
533 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
534 boolean shrink=false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
535 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
536 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
537 Runnable job=_jobs.poll();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
538 while (isRunning())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
539 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
540 // Job loop
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
541 while (job!=null && isRunning())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
542 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
543 runJob(job);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
544 job=_jobs.poll();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
545 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
546
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
547 // Idle loop
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
548 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
549 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
550 _threadsIdle.incrementAndGet();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
551
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
552 while (isRunning() && job==null)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
553 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
554 if (_maxIdleTimeMs<=0)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
555 job=_jobs.take();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
556 else
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
557 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
558 // maybe we should shrink?
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
559 final int size=_threadsStarted.get();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
560 if (size>_minThreads)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
561 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
562 long last=_lastShrink.get();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
563 long now=System.currentTimeMillis();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
564 if (last==0 || (now-last)>_maxIdleTimeMs)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
565 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
566 shrink=_lastShrink.compareAndSet(last,now) &&
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
567 _threadsStarted.compareAndSet(size,size-1);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
568 if (shrink)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
569 return;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
570 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
571 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
572 job=idleJobPoll();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
573 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
574 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
575 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
576 finally
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
577 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
578 _threadsIdle.decrementAndGet();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
579 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
580 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
581 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
582 catch(InterruptedException e)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
583 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
584 LOG.ignore(e);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
585 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
586 catch(Exception e)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
587 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
588 LOG.warn(e);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
589 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
590 finally
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
591 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
592 if (!shrink)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
593 _threadsStarted.decrementAndGet();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
594 _threads.remove(Thread.currentThread());
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
595 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
596 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
597 };
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
598
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
599 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
600 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
601 * <p>Runs the given job in the {@link Thread#currentThread() current thread}.</p>
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
602 * <p>Subclasses may override to perform pre/post actions before/after the job is run.</p>
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
603 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
604 * @param job the job to run
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
605 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
606 protected void runJob(Runnable job)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
607 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
608 job.run();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
609 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
610
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
611 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
612 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
613 * @return the job queue
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
614 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
615 protected BlockingQueue<Runnable> getQueue()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
616 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
617 return _jobs;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
618 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
619
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
620 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
621 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
622 * @param id The thread ID to stop.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
623 * @return true if the thread was found and stopped.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
624 * @deprecated Use {@link #interruptThread(long)} in preference
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
625 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
626 @Deprecated
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
627 public boolean stopThread(long id)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
628 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
629 for (Thread thread: _threads)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
630 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
631 if (thread.getId()==id)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
632 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
633 thread.stop();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
634 return true;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
635 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
636 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
637 return false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
638 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
639
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
640 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
641 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
642 * @param id The thread ID to interrupt.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
643 * @return true if the thread was found and interrupted.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
644 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
645 public boolean interruptThread(long id)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
646 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
647 for (Thread thread: _threads)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
648 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
649 if (thread.getId()==id)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
650 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
651 thread.interrupt();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
652 return true;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
653 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
654 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
655 return false;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
656 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
657
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
658 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
659 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
660 * @param id The thread ID to interrupt.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
661 * @return true if the thread was found and interrupted.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
662 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
663 public String dumpThread(long id)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
664 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
665 for (Thread thread: _threads)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
666 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
667 if (thread.getId()==id)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
668 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
669 StringBuilder buf = new StringBuilder();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
670 buf.append(thread.getId()).append(" ").append(thread.getName()).append(" ").append(thread.getState()).append(":\n");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
671 for (StackTraceElement element : thread.getStackTrace())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
672 buf.append(" at ").append(element.toString()).append('\n');
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
673 return buf.toString();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
674 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
675 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
676 return null;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
677 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
678 }