Use ReadWriteLock in RAMDirectory
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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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