Potential leak in notify.go

[hhheiaenia]

In file https://github.com/lib/pq/blob/master/notify.go#L585,
I notice that when the if condition is met, the Wait() blocks the goroutine and waits for a single.
So I was wondering that is there something that prevents the goroutine from being woken up?
Could the unblock signal always unblock the goroutine?

[johto]

So I was wondering that is there something that prevents the goroutine from being woken up?

The listenerConnMain goroutine should eventually wake it up.

Could the unblock signal always unblock the goroutine?

I'm not sure I understand what you're asking here. Could you explain in a bit more detail?