77 lines
3.5 KiB
C#
77 lines
3.5 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT License.
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// See the LICENSE file in the project root for more information.
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using System.Reactive.Disposables;
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namespace System.Reactive.Concurrency
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{
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/// <summary>
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/// Provides a set of extension methods for virtual time scheduling.
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/// </summary>
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public static class VirtualTimeSchedulerExtensions
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{
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/// <summary>
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/// Schedules an action to be executed at <paramref name="dueTime"/>.
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/// </summary>
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/// <typeparam name="TAbsolute">Absolute time representation type.</typeparam>
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/// <typeparam name="TRelative">Relative time representation type.</typeparam>
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/// <param name="scheduler">Scheduler to execute the action on.</param>
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/// <param name="dueTime">Relative time after which to execute the action.</param>
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/// <param name="action">Action to be executed.</param>
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/// <returns>The disposable object used to cancel the scheduled action (best effort).</returns>
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/// <exception cref="ArgumentNullException"><paramref name="scheduler"/> or <paramref name="action"/> is <c>null</c>.</exception>
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public static IDisposable ScheduleRelative<TAbsolute, TRelative>(this VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TRelative dueTime, Action action)
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where TAbsolute : IComparable<TAbsolute>
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{
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if (scheduler == null)
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{
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throw new ArgumentNullException(nameof(scheduler));
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}
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if (action == null)
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{
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throw new ArgumentNullException(nameof(action));
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}
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// As stated in Scheduler.Simple.cs,
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// an anonymous delegate will allow delegate caching.
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// Watch https://github.com/dotnet/roslyn/issues/5835 for compiler
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// support for caching delegates from method groups.
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return scheduler.ScheduleRelative(action, dueTime, static (_, a) => Invoke(a));
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}
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/// <summary>
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/// Schedules an action to be executed at <paramref name="dueTime"/>.
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/// </summary>
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/// <typeparam name="TAbsolute">Absolute time representation type.</typeparam>
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/// <typeparam name="TRelative">Relative time representation type.</typeparam>
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/// <param name="scheduler">Scheduler to execute the action on.</param>
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/// <param name="dueTime">Absolute time at which to execute the action.</param>
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/// <param name="action">Action to be executed.</param>
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/// <returns>The disposable object used to cancel the scheduled action (best effort).</returns>
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/// <exception cref="ArgumentNullException"><paramref name="scheduler"/> or <paramref name="action"/> is <c>null</c>.</exception>
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public static IDisposable ScheduleAbsolute<TAbsolute, TRelative>(this VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TAbsolute dueTime, Action action)
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where TAbsolute : IComparable<TAbsolute>
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{
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if (scheduler == null)
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{
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throw new ArgumentNullException(nameof(scheduler));
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}
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if (action == null)
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{
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throw new ArgumentNullException(nameof(action));
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}
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return scheduler.ScheduleAbsolute(action, dueTime, static (_, a) => Invoke(a));
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}
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private static IDisposable Invoke(Action action)
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{
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action();
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return Disposable.Empty;
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}
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}
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}
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