Marek Miklewicz
a570635d23
If mkdir(queue.lock) failed for a reason other than "already exists" (e.g. a permissions or disk problem on the data directory), is_dir() was false, so the loop `continue`d before ever reaching the tries>=40 retry-limit check or the usleep(), spinning at full CPU forever instead of failing with a clear error. Move the staleness check inside an is_dir() guard instead of using continue to skip past the retry-limit logic, so the bounded-retry behavior applies regardless of why mkdir failed.