Move MatterControl source code into a subdirectory
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2007 changed files with 13 additions and 8 deletions
93
original/MatterControlLib/Utilities/LimitCallFrequency.cs
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93
original/MatterControlLib/Utilities/LimitCallFrequency.cs
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/*
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Copyright (c) 2015, Lars Brubaker
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MatterHackers.MatterControl.Utilities
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{
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public class LimitCallingFrequency
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{
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private Action functionToCall;
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private double minimumTimeBeforeRepeatSeconds;
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private Stopwatch timeSinceLastCall = new Stopwatch();
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private bool waitingToUpdate = false;
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public LimitCallingFrequency(double minimumTimeBeforeRepeatSeconds, Action functionToCall)
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{
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this.minimumTimeBeforeRepeatSeconds = minimumTimeBeforeRepeatSeconds;
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this.functionToCall = functionToCall;
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}
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public void CallEvent()
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{
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if (!waitingToUpdate)
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{
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if (!timeSinceLastCall.IsRunning
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|| timeSinceLastCall.Elapsed.TotalSeconds > minimumTimeBeforeRepeatSeconds)
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{
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// we can call it right now
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functionToCall?.Invoke();
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timeSinceLastCall.Restart();
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}
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else // we need to wait for the time to elapse then call the function
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{
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waitingToUpdate = true;
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Task.Run(() => WaitForTimeAndCallFunction());
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}
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}
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}
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public void CallOccured()
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{
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waitingToUpdate = false;
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timeSinceLastCall.Restart();
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}
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private void WaitForTimeAndCallFunction()
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{
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while (timeSinceLastCall.Elapsed.TotalSeconds < minimumTimeBeforeRepeatSeconds)
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{
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Thread.Sleep(1);
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if (!waitingToUpdate)
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{
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return;
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}
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}
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functionToCall?.Invoke();
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waitingToUpdate = false;
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timeSinceLastCall.Restart();
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}
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}
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}
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