How to use DispatchQueue.isExecuting

[jet...@web.de]

Hello,

I have a DispatchQueue on which I invoked execute several times. All the runnables that were passed on to the execute method sleep for a long time. This way the current executed runnable while sleeping prevents the runnables in the queue from running. So I thought that this would result in DispatchQueue.isExecuting() returning true when there are still runnables waiting in the queue, but it returns false. What I basically am looking for is a way to figure out whether the queue is idle or not.

Thanks for any hints,
Oliver

[Hiram Chirino]

isExecuting returns true if it's executing on the current thread. The
only way you can do that is by enabling queue profiling using:

dispatchQueue.profile(true);

and then looking at the metrics of the queue like:

size = dispatchQueue.metrics().enqueued - dispatchQueue.metrics().dequeued;

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Hiram Chirino

Engineering | Red Hat, Inc.

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