: string | ; | ||||
: string | ; | ||||
: Core.Std.Daemon.Fd_redirection.t | ; | ||||
: Core.Std.Daemon.Fd_redirection.t | ; |
acquire_lock_exn slot
locks slot
. This can be used from within another program to
ensure that no server is running while, e.g., an offline backup is run.
Due to the semantics of the underlying Lock_file.create
call, this lock is only
released when the process exits. To release earlier, delete the lock file manually.
*