jakehemmerle c25ff34b5b fix(daemon): prevent orphan daemons via file locking ...

Add syscall.Flock() exclusive lock in daemon.Run() to prevent TOCTOU
race condition where concurrent 'gt daemon start' commands could spawn
multiple daemons. Only the first to acquire the lock succeeds; others
exit cleanly. Lock is per-town (in townRoot/daemon/daemon.lock) so
multiple GT instances from different directories work independently.

Also detect race losers in runDaemonStart() by comparing spawned PID
with PID file, reporting 'already running' instead of false success.

2026-01-04 15:30:57 -05:00

7.0 KiB

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