ClearScript/ClearScript/Util/NativeCallbackTimer.cs at master · QPC-database/ClearScript · GitHub

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// Licensed under the MIT license.

using System;

using System.Threading;

namespace Microsoft.ClearScript.Util

{

internal sealed class NativeCallbackTimer : IDisposable

{

private readonly Timer timer;

private readonly INativeCallback callback;

private readonly InterlockedOneWayFlag disposedFlag = new InterlockedOneWayFlag();

public NativeCallbackTimer(int dueTime, int period, INativeCallback callback)

{

this.callback = callback;

timer = new Timer(OnTimer, null, Timeout.Infinite, Timeout.Infinite);

if ((dueTime != Timeout.Infinite) || (period != Timeout.Infinite))

{

timer.Change(dueTime, period);

}

public bool Change(int dueTime, int period)

{

if (!disposedFlag.IsSet)

{

if (MiscHelpers.Try(out var result, () => timer.Change(dueTime, period)))

{

return result;

}

return false;

}

private void OnTimer(object state)

{

if (!disposedFlag.IsSet)

{

MiscHelpers.Try(callback.Invoke);

}

public void Dispose()

{

if (disposedFlag.Set())

{

timer.Dispose();

callback.Dispose();

}

ClearScript/ClearScript/Util/NativeCallbackTimer.cs at master · QPC-database/ClearScript · GitHub

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