The SAS/SHARE lock manager facility enables
multiple clients
to share the same SAS file at the same time. The lock manager must evaluate
each incoming client request for access to SAS data objects against a set
of complex locking rules. It grants or denies each new incoming request for
access to the data object while monitoring the status of all other client
activities. The lock manager grants access to the wanted data object by locking
the data object, thus keeping out all other requests for the data object until
the operation has completed or the lock has been cleared explicitly.
Note: The term operation refers to any
SAS procedure, statement, or command. ![[cautionend]](../common/images/cautend.gif)
Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
