59 lines
1.7 KiB
C#
59 lines
1.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.ServiceModel;
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using System.Threading;
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namespace MonoTests.Features.Contracts
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{
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// Define a service contract.
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[ServiceContract (Namespace = "http://MonoTests.Features.Contracts")]
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public interface IAsyncPattern
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{
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[OperationContractAttribute (AsyncPattern = true)]
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IAsyncResult BeginAsyncMethod (AsyncCallback callback, object asyncState);
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int EndAsyncMethod (IAsyncResult result);
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// TODO: Need to investigate asyn methods that have ref/out params that are not necessarily first
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// e.g. how does foo(in, ref, out, in) map to AsyncPattern?
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}
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public class AsyncPatternServer : IAsyncPattern
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{
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// Simple async result implementation.
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class CompletedAsyncResult<T> : IAsyncResult
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{
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T data;
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object state;
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public CompletedAsyncResult (T data, object state) { this.data = data; this.state = state; }
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public T Data { get { return data; } }
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#region IAsyncResult Members
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public object AsyncState { get { return (object) state; } }
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public WaitHandle AsyncWaitHandle { get { throw new Exception ("The method or operation is not implemented."); } }
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public bool CompletedSynchronously { get { return true; } }
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public bool IsCompleted { get { return true; } }
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#endregion
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}
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public IAsyncResult BeginAsyncMethod (AsyncCallback callback, object asyncState) {
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IAsyncResult result = new CompletedAsyncResult<int> (3, asyncState);
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new Thread (new ThreadStart (
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delegate {
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callback (result);
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})).Start ();
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return result;
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}
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public int EndAsyncMethod (IAsyncResult r) {
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return ((CompletedAsyncResult<int>) r).Data;
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}
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}
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}
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