umqtt.simple: add ping_response_received for ping handling #850
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Signed-off-by: Thomas Crescenzi <[email protected]>
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Currently when using
pingthe response is swallowed which makes it not particularly useful. This PR adds a flagping_response_receivedto the client which is set toTrueif a response has been received inwait_msg. I've been using this approach in a personal project without any issues and it's not particularly invasive so I wanted to propose it as a solution to #332.Another possible approach is to actually respond in
wait_msgwith an actual ping response however I'm not certain how that would interact with subscriptions and those currently usingwait_msgso this approach was taken in order to not be breaking while still being useful.