fix: avoids deadlock when requesting info on disconnected inlet

sccn / liblsl

C++ lsl library for multi-modal time-synched data transmission over the local network

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Closed crazy-eddie closed 4 months ago

crazy-eddie commented 5 months ago

Adds test to for calling info on a disconnected stream_inlet to testing/ext/discovery.cpp
Fixes deadlock that occurred by checking return value of buffer.connect and throwing a system_error based on the error_code in buffer if the check fails.

issue: sccn/liblsl#201