Timeout cancellation of Task.Wait() method in C#
In this code, MessageLoopWorker.Run
is started on a new thread with a message pump, and the DoWorkAsync
task is executed on this thread. Then wait for the task on the main thread, blocking the main thread until the task is completed.
In order to cancel the task after timeout, you can use the CancellationToken
class. CancellationToken
class allows you to propagate cancellation requests from one thread to another.
Here's how to modify your code to cancel the task after timeout:
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In this code, we create a CancellationTokenSource
and pass it CancellationToken
to the MessageLoopWorker.Run
method. We also set a timer to cancel the token after 5 seconds. If the task completes successfully before timing out, we will get the result. If the task is cancelled, we capture OperationCanceledException
. Finally, we release the using
and CancellationTokenSource
resources using the Timer
statement to ensure the resources are handled correctly. Additionally, a AggregateException
handler has been added to catch and handle other exceptions that may arise in the DoWorkAsync
task.
This improved version uses using
statements for proper resource management, preventing resource leaks. The addition of AggregateException
handling makes the code more robust. Remember to handle the inner exceptions appropriately within the AggregateException
catch block, such as logging them or taking other corrective actions.
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