Draft: Resolve "(io) Added missing check before sending message to improve robustness in grabber_proxy"
requested to merge 1259-io-added-missing-check-before-sending-message-to-improve-robustness-in-grabber_proxy into dev
Description
Several methods in grabber_proxy class are retrieving shared_ptr<signal<...>> without testing if empty. This can be problematic in some cases (rare)
Results
Simply do not use the signal if empty using an early exit of the method.
How to test it?
I don't have a deterministic method for causing the problem. But it can only get better, no ? :)
Related issue(s)
Closes #1259