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using System;
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using System.Threading;
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using System.Diagnostics;
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using System.ServiceModel;
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using System.ServiceModel.Description;
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namespace MQFilter
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{
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[System.ComponentModel.DesignerCategory("Code")]
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class PumpService : System.ServiceProcess.ServiceBase
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{
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public const int SECONDS_BETWEEN_RUN = 10;
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const int INTERVAL = 5;
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TimeSpan m_delay = new TimeSpan(0, 0, 0, INTERVAL, 0);
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private Thread m_thread = null;
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private static ManualResetEvent m_shutdownEvent = new ManualResetEvent(false);
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FilterController filterController = null;
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protected void InitializeComponent()
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{
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// Initialize the operating properties for the service.
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this.CanPauseAndContinue = false;
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this.CanShutdown = true;
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this.CanHandleSessionChangeEvent = true;
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this.ServiceName = "DaoMqPump2";
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}
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// Start the service.
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protected override void OnStart(string[] args)
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{
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try
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{
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//first load transports
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filterController = FilterController.getInstance();
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//finally start the worker thread
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// create our threadstart object to wrap our delegate method
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ThreadStart ts = new ThreadStart(this.ServiceWorkerMethod);
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// create the manual reset event and
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// set it to an initial state of unsignaled
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m_shutdownEvent = new ManualResetEvent(false);
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// create the worker thread
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m_thread = new Thread(ts);
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// go ahead and start the worker thread
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m_thread.Start();
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}
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catch (Exception e)
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{
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EventLog.WriteEntry("MQFilter", "Error starting DaoMqPump2: " + e.Message, EventLogEntryType.Error);
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throw e;
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}
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}
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// Stop this service.
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protected override void OnStop()
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{
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// New in .NET Framework version 2.0.
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this.RequestAdditionalTime(10000);
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// signal the event to shutdown
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m_shutdownEvent.Set();
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// wait for the thread to stop giving it 10 seconds
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m_thread.Join(10000);
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// call the base class
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base.OnStop();
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this.ExitCode = 0;
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}
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public void ServiceWorkerMethod()
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{
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bool bSignaled = false;
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int count = 20; //count starts high so we get to pump during the first iteration
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try
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{
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do
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{
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// Block if the service is paused or is shutting down.
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bSignaled = m_shutdownEvent.WaitOne(m_delay, true);
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// if we were signaled to shutdow, exit the loop
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if (bSignaled == true)
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break;
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count ++;
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int elapsed = INTERVAL * count;
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if (elapsed >= SECONDS_BETWEEN_RUN) // only run every SECONDS_BETWEEN_RUN'th second
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{
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filterController.transportAllMessages();
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count = 0;//reset counter
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}
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}
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while (true);
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}
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catch (ThreadAbortException)
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{
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// Another thread has signalled that this worker
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// thread must terminate. Typically, this occurs when
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// the main service thread receives a service stop
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// command.
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// Write a trace line indicating that the worker thread
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// is exiting. Notice that this simple thread does
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// not have any local objects or data to clean up.
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}
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}
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}
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}
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