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I'm using TaskCompletionSource to provide and drive an instance of Task. I would like to be able to set the Task to status Running to indicate that the task is... 'running' however I can't see a way to achieve this via TaskCompletionSource.
Is there a way to do this?
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Run turns something synchronous into a Task (by running it on a separate thread), TaskCompletionSource turns something that is already asynchronous into a Task . "If it is already asynchronous, why does it need to be turned into a Task ?"
To start a task in C#, follow any of the below given ways. Use a delegate to start a task. Task t = new Task(delegate { PrintMessage(); }); t. Start();
Is it safe to pass non-thread-safe objects created on one thread to another using TaskCompletionSource. SetResult()? Yes, as long as the object can be used on a different thread than the one it was created on (of course).
No. There isn't a way.
Whether or not you like my answer, however, it is the correct one. :-)
The following is my opinion, and an attempt to help you feel better.
Task.Status has several states that are only set and useful when the task is a scheduled task. Tasks from TaskCompletionSource are not scheduled tasks. The concept of WaitingToRun, Running, etc. are therefore not applicable in the traditional scheduled task sense. If you did have the ability to set these, you'd have to decide on what semantics to apply to these values, which may conflict with how others interpret them.
Ultimately, I don't think your code should ever make any decisions based on these intermediate states anyway. Doing so sounds like a "code smell".
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