Client can endlessly block in stopDetector if the server(s) fail replying F_STOP_ACQUISITION

[alejandrohomsp]

*Distribution:

Ubuntu 20.04

*Detector type:

Eiger

*Software Package Version:

6.0.0

Priority:

Low

*Describe the bug

With the Eiger detector, if the acquisition fails due to a detector head buffer overrun (a very large number of frames not fitting in the detector memory), a F_STOP_ACQUISITION might not be properly acknowledged. This can block the client in an endless loop, requiring a SIGKILL to stop the application.

Expected behavior

sls::Detector API should provide some kind of timeout mechanism. An additional timeout argument to the sls::DataSocket::Receive() family, used by sls::Module::sendToDetector() and co., might help to better deal with this kind of exceptions.

To Reproduce

Force a detector head buffer overrun and then stop the acquisition

Screenshots

Additional context