Write locks in Acedb

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#2834

From: Henry J. Cobb
Date: Thu, 23 Sep 1993 10:59

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	The semaphore system in Acedb seems to be slightly misused, and
anyway won't scale over NFS mounts.

	NFS guarantees only one atomic action (without the presence of
lockd, which is not universal):  File creation.

	So is there any objection to throwing out the Semaphores and other
junk and replacing this with a simple:

	open( lockfile, O_RDWR | O_CREATE | O_EXCL) or fail in
sessionClose()?
--
	Henry J. Cobb	hcobb@fly2.berkeley.edu	SFB Tyrant

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From: hcobb@fly2.berkeley.edu (Henry J. Cobb)
Newsgroups: bionet.software.acedb
Subject: Write locks in Acedb
Followup-To: bionet.software.acedb
Date: 23 Sep 93 10:59:46
Organization: University of California, Berkeley
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