WIP: Delegate unsubscribe from events to Tango C++ (PyTango#292) (!1091) · Merge requests · taurus-org / taurus

Zbigniew Reszela requested to merge github/fork/reszelaz/pytango292_donot_unsub into develop Mar 18, 2020

Tango C++ unsubscribe from any subscribed event in the DeviceProxy destructor. As workaround for PyTango#292 do not call unsubscribes in Taurus. Just mark the event type as unsubscribed so eventual event callbacks are ignored in push_event.

This PR is one of the options to workaround https://github.com/tango-controls/pytango/issues/292. It still does not work properly. I found the Sardana testsuite hung in the following situation" no_unsub_bt.txt and no_unsub_py-bt.txt

. I plan to push another option with delegating the unsubscribe to a worker thread.

WIP: Delegate unsubscribe from events to Tango C++ (PyTango#292)

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