Implements OnMainThreadBlocked. #1280
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added 4 commits
February 5, 2024 09:26
| /// <param name="cancellationToken">An optional cancellation token.</param> | ||
| /// <returns>A task is completed either the slow task is completed, or the input cancellation token is triggered, or the context task blocks the main thread (inside JTF.Run).</returns> | ||
| /// <exception cref="OperationCanceledException">Throw when the cancellation token is triggered or the current task blocks the main thread.</exception> | ||
| public static Task WaitUnlessBlockingMainThreadAsync(this JoinableTaskContext context, Task slowTask, CancellationToken cancellationToken = default) |
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Consider a slightly different signature to be similar to WithCancellation():
CancelIfMainThreadBlockedAsync(this Task slowTask, JoinableTaskContext context, CT)
That would associate it with the Task in Intellisense and imply that it throws an OperationCanceledEx like it currently does.
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I like the order of parameters suggested by Richard, and updated the PR. I would like to hear more feedback on the name of the method itself, so I haven't updated it yet.
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This PR is to address #1273.
It is to allow other feature to detect whether a blocking waiting task is actually blocking the main thread. It could allow code to detect certain deadlocks (for example, blocking to wait solution loading completion but the current task is blocking the solution to load.) Or it could raise the priority of the current task in a throttling queue (like design time build queue etc).