72 lines
2.1 KiB
C#
72 lines
2.1 KiB
C#
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//
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// System.Data.Common.TaskHelper.cs
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//
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// Copyright (C) 2013 Pēteris Ņikiforovs
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#if NET_4_5
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using System;
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using System.Threading.Tasks;
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namespace System.Data.Common {
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static class TaskHelper
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{
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internal static Task CreateCanceledTask ()
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{
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TaskCompletionSource<object> tsc = new TaskCompletionSource<object> ();
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tsc.SetCanceled ();
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return tsc.Task;
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}
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internal static Task<T> CreateCanceledTask<T> ()
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{
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TaskCompletionSource<T> tsc = new TaskCompletionSource<T> ();
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tsc.SetCanceled ();
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return tsc.Task;
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}
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internal static Task CreateExceptionTask (Exception e)
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{
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TaskCompletionSource<object> tsc = new TaskCompletionSource<object> ();
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tsc.SetException (e);
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return tsc.Task;
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}
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internal static Task<T> CreateExceptionTask<T> (Exception e)
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{
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TaskCompletionSource<T> tsc = new TaskCompletionSource<T> ();
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tsc.SetException (e);
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return tsc.Task;
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}
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internal static Task CreateVoidTask ()
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{
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TaskCompletionSource<object> tsc = new TaskCompletionSource<object> ();
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tsc.SetResult (null);
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return tsc.Task;
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}
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}
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}
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#endif
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