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POTimer behavior when execution takes longer than span?
 

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    <p>I'm writing windows service which will process "something" every couple minutes.</p> <p>Here is some code:</p> <pre><code>public Service() { this.InitializeComponent(); this.ServiceName = Name; this.CanPauseAndContinue = true; this.CanShutdown = true; this.eventLog.Source = Name; // initialize timer this.timer.Elapsed += this.TimerElapsed; } private void TimerElapsed(object sender, ElapsedEventArgs e) { eventLog.WriteEntry("Starting syncronization...", EventLogEntryType.Information); if (this.processor.PrepareToRun()) { this.processor.Run(); } } </code></pre> <p>I wonder what will happen if <code>this.processor.Run()</code> will take long time and next <code>TimerElapsed</code> event will be raised? Will it skip? Will it wait and run ASAP after finished? Should I consider those scenarios and code for them?</p> <p>I'm using <code>System.Timers.Timer</code></p> <p><strong>EDIT</strong>:</p> <pre><code>private void TimerElapsed(object sender, ElapsedEventArgs e) { eventLog.WriteEntry("Starting syncronization...", EventLogEntryType.Information); try { this.timer.Stop(); if (this.processor.PrepareToRun()) { this.processor.Run(); } } catch (Exception ex) { LoggingAndNotifications.LogAndNotify(ex); } finally { this.timer.Start(); } } </code></pre> <p><strong>EDIT 2</strong></p> <pre><code>public Service() { this.InitializeComponent(); this.ServiceName = Name; this.CanPauseAndContinue = true; this.CanShutdown = true; this.eventLog.Source = Name; // initialize timer this.timer.AutoReset = false; this.timer.Elapsed += this.TimerElapsed; } private void TimerElapsed(object sender, ElapsedEventArgs e) { eventLog.WriteEntry("Starting syncronization...", EventLogEntryType.Information); try { if (this.processor.PrepareToRun()) { this.processor.Run(); } } catch (Exception ex) { LoggingAndNotifications.LogAndNotify(ex); throw; } finally { this.timer.Start(); } } </code></pre>
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