Incorrect (?) uptime

[xrisk]

Nyx seems to be showing me the “real" uptime of my relay, that is the time since I started it. However, since I have a dynamic address, the effective uptime (the value I see on Onionoo and in Tor logs) is not equivalent to that value. Is there any way I can see that instead?

[atagar]

Hi xrisk. Nyx gets the uptime from tor itself (tor's 'GETINFO uptime' command). What you're asking for is the duration you had an address rather than the process uptime. I'm unaware of a mechanism for Nyx to get that offhand, but if you'd care to make a patch I'd be happy to take a look.

[xrisk]

I do notice lines like this in the Nyx logs:

 18:02:49 [NOTICE] Heartbeat: Tor's uptime is 22:24 hours, with 379 circuits open. I've sent 31.67 GB and received 31.67 GB. 

(Note, uptime as reported by Nyx is 7 days as this point)

I will try looking into the Tor source code to see how these are emitted. Do you have any introductory materials for hacking on Tor?