Aucbvax.2776
fa.unix-wizards
utzoo!decvax!ucbvax!unix-wizards
Fri Aug 21 14:26:02 1981

>From decvax!duke!unc!smb@Berkeley Fri Aug 21 14:13:28 1981
In real life: Steven M. Bellovin, U. of North Carolina at Chapel Hill
To: unix-wizards
Subject: lock drivers

has anyone build a locking machine use the multiplexor?  Processes could
write messages like

	LOCK /usr/spool/mail/someone SHR

etc.; the process could respond when the resource was available.  A close
on the lockfile would be an indication to release all locks held there.