Feature request: Start and Stop recording with buffer

[JonasHablitzel]

Hello,

as i unterstand, this package allows me to save messages from the past to a rosbag.
For my usecase i want to save old messages and also all messages after i triggered rosbag_sanpshot, till i stop the measurement again.
In my current implemention, i trigger the snapshot buffer write after i started a normal rosbag record process.
This has clear issues in my opinion. (Overlapping/lost messages. write overhead)

Because of that my question is if rosbag_snapshot currently supports this use case?
And if it doesn"t support this use case if this feature would be out of scope of this package or could be a possible feature?

Thanks in advance,

Jonas