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<  User Contributions  ~  Efficient and scalable read-write locker.
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Posted: Wed Aug 15, 2007 3:46 pm Reply with quote
Site Admin Joined: 28 Jun 2006 Posts: 108
Written By: Ulf Wiger,
A read-write locker based on a redundant-master-slave concept. This locker is generally much faster than global -- more so in large networks. Locker nodes are specified as either peers or slaves; one peer is made the master locker (automatically, or manually). All lock negotiation takes place on the master, and lock info is replicated to all the peers (which are standby for the master.) The locker handles both shared and exclusive locks, as well as lock promotion (from shared to exclusive.) This is a slightly modified version of a locker implementation used in the AXD 301 switch. Co-author: Asko Husso <asko.husso@etx.ericsson.se>


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