mirror of
https://github.com/tailscale/tailscale.git
synced 2025-02-18 02:48:40 +00:00
cb66952a0d
In prep for tsd.System Tracker plumbing throughout tailscaled, defensively permit all methods on Tracker to accept a nil receiver without crashing, lest I screw something up later. (A health tracking system that itself causes crashes would be no good.) Methods on nil receivers should not be called, so a future change will also collect their stacks (and panic during dev/test), but we should at least not crash in prod. This also locks that in with a test using reflect to automatically call all methods on a nil receiver and check they don't crash. Updates #11874 Updates #4136 Change-Id: I8e955046ebf370ec8af0c1fb63e5123e6282a9d3 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>