70 lines
2.3 KiB
C#
70 lines
2.3 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Runtime
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{
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using System;
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using System.Threading;
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//An AsyncResult that completes as soon as it is instantiated.
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class CompletedAsyncResult : AsyncResult
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{
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public CompletedAsyncResult(AsyncCallback callback, object state)
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: base(callback, state)
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{
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Complete(true);
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}
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[Fx.Tag.GuaranteeNonBlocking]
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public static void End(IAsyncResult result)
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{
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Fx.AssertAndThrowFatal(result.IsCompleted, "CompletedAsyncResult was not completed!");
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AsyncResult.End<CompletedAsyncResult>(result);
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}
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}
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class CompletedAsyncResult<T> : AsyncResult
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{
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T data;
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public CompletedAsyncResult(T data, AsyncCallback callback, object state)
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: base(callback, state)
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{
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this.data = data;
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Complete(true);
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}
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[Fx.Tag.GuaranteeNonBlocking]
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public static T End(IAsyncResult result)
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{
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Fx.AssertAndThrowFatal(result.IsCompleted, "CompletedAsyncResult<T> was not completed!");
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CompletedAsyncResult<T> completedResult = AsyncResult.End<CompletedAsyncResult<T>>(result);
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return completedResult.data;
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}
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}
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class CompletedAsyncResult<TResult, TParameter> : AsyncResult
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{
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TResult resultData;
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TParameter parameter;
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public CompletedAsyncResult(TResult resultData, TParameter parameter, AsyncCallback callback, object state)
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: base(callback, state)
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{
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this.resultData = resultData;
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this.parameter = parameter;
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Complete(true);
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}
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[Fx.Tag.GuaranteeNonBlocking]
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public static TResult End(IAsyncResult result, out TParameter parameter)
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{
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Fx.AssertAndThrowFatal(result.IsCompleted, "CompletedAsyncResult<T> was not completed!");
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CompletedAsyncResult<TResult, TParameter> completedResult = AsyncResult.End<CompletedAsyncResult<TResult, TParameter>>(result);
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parameter = completedResult.parameter;
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return completedResult.resultData;
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}
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}
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}
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