Josh Bleecher Snyder f7bbdc31a0 device: fix data race in peer.timersActive ...

Found by the race detector and existing tests.

To avoid introducing a lock into this hot path,
calculate and cache whether any peers exist.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>

2021-01-07 14:49:44 +01:00

6.9 KiB

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