FWIW, GNU's movemail locking first tries to do the "dotlock" (what TB does now), and only does kernel locking if the access isn't permitted.
The kernel locking is done with file descriptors holding a write lock.
FWIW, GNU's movemail locking first tries to do the "dotlock" (what TB does now), and only does kernel locking if the access isn't permitted.
The kernel locking is done with file descriptors holding a write lock.