From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri, 23 Aug 1996 17:38:06 -0400
From: Rob Pike rob@plan9.bell-labs.com
Subject: RWlock adt in alef
Topicbox-Message-UUID: 4b6d98ec-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19960823213806.i3prkAji9kOCzk8OO-Z8haPH19NM-k02dzgXhsHU2F0@z>

Looks like it fell through the cracks.  It's unimplemented.

-rob