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From "Shai Erera (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2779) Use ReadWriteLock in RAMDirectory
Date Thu, 25 Nov 2010 17:30:14 GMT
Use ReadWriteLock in RAMDirectory
---------------------------------

                 Key: LUCENE-2779
                 URL: https://issues.apache.org/jira/browse/LUCENE-2779
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Store
            Reporter: Shai Erera
            Assignee: Shai Erera
            Priority: Minor
             Fix For: 3.1, 4.0


RAMDirectory synchronizes on its instance in many places to protect access to map of RAMFiles,
in addition to updating the sizeInBytes member. In many places the sync is done for 'read'
purposes, while only in few places we need 'write' access. So I think ReadWriteLock can be
useful.

Also, syncing around sizeInBytes is unnecessary IMO, since it's an AtomicLong ...

I'll post a patch shortly.

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