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NativeCallbackTimer.cs
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56 lines (48 loc) · 1.51 KB
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// Copyright (c) Microsoft Corporation. All rights reserved.
// 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();
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, static ctx => ctx.timer.Change(ctx.dueTime, ctx.period), (timer, dueTime, period)))
{
return result;
}
}
return false;
}
private void OnTimer(object _)
{
if (!disposedFlag.IsSet)
{
MiscHelpers.Try(static callback => callback.Invoke(), callback);
}
}
public void Dispose()
{
if (disposedFlag.Set())
{
timer.Dispose();
callback.Dispose();
}
}
}
}