rtl_tcp exit on usb hotplug

[porkiedev]

Hello :)
This repo has by far the absolute best when it comes to rtl_tcp. So much so that I working on building a rtl_tcp server in my backyard off of a discone antenna for remote listening in the house.
However, My personal experience with USB is that the connector is loose and causes communication losses sometimes.
I setup a systemctl service on my Raspberry Pi 2B to run rtl_tcp on boot and auto-restart, with the intention being that if I want to hotswap SDRs or a dongle is bumped, I wouldn't have to SSH into the pi to restart the service. However, during a hotplug event it appears that rtl_tcp just throws a bunch of angry words at me and then sits there repeating the same set of buffers over and over.

So, for the feature request;
The option to have rtl_tcp exit when a hotplug event occurs would be awesome, that way systemctl could catch the exit code auto-restart the service. If this can't be implemented here, a direction to go for implementing it myself would be great (I'm not good at C).

Thanks again for this awesome fork of librtlsdr :)