Module lock 

Locks (spec/sync/README.md §7): advisory O_EXCL lock files under .omgbase/ holding {"pid": <holder>, "ts": <ms>}; a lock whose holder is dead (or whose body is unparsable — §9) is stolen. The writer lock polls; the watch lease is try-only.

Structs

WatchLease

The watch lease (watch.lock): held by a live watcher for its lifetime.

WriterLock

The workspace writer lock (writer.lock), released on drop.

WriterLockOptions

How long a writer waits, and how often it polls.

Constants

WATCH_LEASE

watch.lock.

WRITER_LOCK

writer.lock.

Functions

pid_alive

Whether pid is alive: kill(pid, 0) succeeds, or fails with EPERM (alive but not ours).

read_holder_pid

The holder pid recorded in a lock file, or None when the file is missing, unreadable or not {"pid": n}.

with_writer_lock

Run f holding the writer lock; released even when f fails.