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C# TaskCompletionSource.TrySetCanceledWithBackgroundContinuations方法代碼示例

本文整理匯總了C#中Nito.AsyncEx.TaskCompletionSource.TrySetCanceledWithBackgroundContinuations方法的典型用法代碼示例。如果您正苦於以下問題:C# TaskCompletionSource.TrySetCanceledWithBackgroundContinuations方法的具體用法?C# TaskCompletionSource.TrySetCanceledWithBackgroundContinuations怎麽用?C# TaskCompletionSource.TrySetCanceledWithBackgroundContinuations使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在Nito.AsyncEx.TaskCompletionSource的用法示例。


在下文中一共展示了TaskCompletionSource.TrySetCanceledWithBackgroundContinuations方法的3個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的C#代碼示例。

示例1: ConfigureTopologyAsync

        public static async Task ConfigureTopologyAsync(this Link @this,
            Func<ILinkTopologyConfig, Task> configure, CancellationToken cancellationToken)
        {            
            var completion = new TaskCompletionSource();
            if (cancellationToken.IsCancellationRequested)
            {
                completion.TrySetCanceled();
                await completion.Task;
                return;                
            }

            using (@this.CreateTopologyConfigurator(configure, () =>
            {
                completion.TrySetResultWithBackgroundContinuations();
                return Task.FromResult((object) null);
            }, ex =>
            {
                completion.TrySetExceptionWithBackgroundContinuations(ex);
                return Task.FromResult((object) null);
            }))
            {
                IDisposable registration = null;
                try
                {
                    registration = cancellationToken.Register(() =>
                    {
                        completion.TrySetCanceledWithBackgroundContinuations();                    
                    });
                }
                catch (ObjectDisposedException)
                {
                    // Cancellation source already disposed                  
                }

                if (cancellationToken.IsCancellationRequested)
                {
                    completion.TrySetCanceledWithBackgroundContinuations();
                }

                try
                {
                    await completion.Task
                        .ConfigureAwait(false);
                }
                finally
                {
                    registration?.Dispose();
                }
            }
        }
開發者ID:rabbit-link,項目名稱:rabbit-link,代碼行數:50,代碼來源:LinkExtensions.cs

示例2: TrySetCanceledWithBackgroundContinuations_RunsOnAnotherThread

        public void TrySetCanceledWithBackgroundContinuations_RunsOnAnotherThread()
        {
            AsyncContext.Run(async () =>
            {
                var unitTestThreadId = Thread.CurrentThread.ManagedThreadId;
                int continuationThreadId = unitTestThreadId;
                var tcs = new TaskCompletionSource();
                var continuation = tcs.Task.ContinueWith(_ => { continuationThreadId = Thread.CurrentThread.ManagedThreadId; },
                    CancellationToken.None, TaskContinuationOptions.ExecuteSynchronously, TaskScheduler.Default);

                tcs.TrySetCanceledWithBackgroundContinuations();
                await continuation;

                Assert.AreNotEqual(unitTestThreadId, continuationThreadId);
            });
        }
開發者ID:Lakerfield,項目名稱:AsyncEx,代碼行數:16,代碼來源:TaskCompletionSourceExtensionsUnitTests.cs

示例3: TrySetCanceledWithBackgroundContinuationsTResult_RunsOnAnotherThread

        public void TrySetCanceledWithBackgroundContinuationsTResult_RunsOnAnotherThread()
        {
            Test.Async(async () =>
            {
                var unitTestThreadId = Thread.CurrentThread.ManagedThreadId;
                int continuationThreadId = unitTestThreadId;
                var tcs = new TaskCompletionSource<int>();
                var continuation = tcs.Task.ContinueWith(_ => { continuationThreadId = Thread.CurrentThread.ManagedThreadId; },
                    TaskContinuationOptions.ExecuteSynchronously);

                tcs.TrySetCanceledWithBackgroundContinuations();
                await continuation;

                Assert.AreNotEqual(unitTestThreadId, continuationThreadId);
            });
        }
開發者ID:Lakerfield,項目名稱:AsyncEx,代碼行數:16,代碼來源:TaskCompletionSourceExtensionsUnitTests.cs


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