63 lines
2.0 KiB
C#
63 lines
2.0 KiB
C#
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#if !NETSTANDARD1_3
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namespace Unosquare.Swan.Components
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{
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using System;
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using System.Threading;
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using Abstractions;
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/// <summary>
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/// Use this singleton to wait for a specific <c>TimeSpan</c> or time.
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///
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/// Internally this class will use a <c>Timer</c> and a <c>ManualResetEvent</c> to block until
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/// the time condition is satisfied.
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/// </summary>
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/// <seealso cref="SingletonBase{TimerControl}" />
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public class TimerControl : SingletonBase<TimerControl>
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{
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private readonly Timer _innerTimer;
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private readonly IWaitEvent _delayLock = WaitEventFactory.Create(true);
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/// <summary>
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/// Initializes a new instance of the <see cref="TimerControl"/> class.
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/// </summary>
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protected TimerControl()
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{
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_innerTimer = new Timer(
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x =>
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{
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try
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{
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_delayLock.Complete();
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_delayLock.Begin();
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}
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catch
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{
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// ignore
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}
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},
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null,
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0,
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15);
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}
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/// <summary>
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/// Waits until the time is elapsed.
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/// </summary>
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/// <param name="untilDate">The until date.</param>
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/// <param name="ct">The cancellation token.</param>
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public void WaitUntil(DateTime untilDate, CancellationToken ct = default)
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{
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while (!ct.IsCancellationRequested && DateTime.UtcNow < untilDate)
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_delayLock.Wait();
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}
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/// <summary>
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/// Waits the specified wait time.
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/// </summary>
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/// <param name="waitTime">The wait time.</param>
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/// <param name="ct">The cancellation token.</param>
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public void Wait(TimeSpan waitTime, CancellationToken ct = default) =>
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WaitUntil(DateTime.UtcNow.Add(waitTime), ct);
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}
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}
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#endif
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