30 lines
1.3 KiB
C#
30 lines
1.3 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="TaskExtensions.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.Util {
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using System;
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using System.Threading.Tasks;
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// Contains helper methods for dealing with Tasks
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internal static class TaskExtensions {
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// Throws the exception that faulted a Task, similar to what 'await' would have done.
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// Useful for synchronous methods which have a Task instance they know to be already completed
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// and where they want to let the exception propagate upward.
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public static void ThrowIfFaulted(this Task task) {
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Debug.Assert(task.IsCompleted, "The Task passed to this method must be marked as completed so that this method doesn't block.");
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task.GetAwaiter().GetResult();
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}
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// Gets a WithinCancellableCallbackTaskAwaiter from a Task.
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public static WithinCancellableCallbackTaskAwaitable WithinCancellableCallback(this Task task, HttpContext context) {
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return new WithinCancellableCallbackTaskAwaitable(context, task.GetAwaiter());
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}
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}
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}
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