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From "Dmitriy Setrakyan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-637) Implement IgniteReadWriteLock data structure
Date Sun, 29 Mar 2015 20:40:52 GMT
Dmitriy Setrakyan created IGNITE-637:

             Summary: Implement IgniteReadWriteLock data structure
                 Key: IGNITE-637
                 URL: https://issues.apache.org/jira/browse/IGNITE-637
             Project: Ignite
          Issue Type: Bug
          Components: data structures
            Reporter: Dmitriy Setrakyan

We need to add {{IgniteReentrantReadWriteLock}} data structure in addition to other data structures
provided by Ignite. {{IgniteReentrantReadWriteLock}} should have similar API to {{java.util.concurrent.locks.ReentrantReadWriteLock}}
class in JDK.

As an example, you can see how [IgniteCountDownLatch|https://github.com/apache/incubator-ignite/blob/master/modules/core/src/main/java/org/apache/ignite/IgniteCountDownLatch.java]
is implemented in [GridCacheCountDownLatchImpl|https://github.com/apache/incubator-ignite/blob/master/modules/core/src/main/java/org/apache/ignite/internal/processors/datastructures/GridCacheCountDownLatchImpl.java]

In general we need to have an entity in ATOMIC cache storing number of readers and writers
and allow user threads to block whenever needed to wait for a lock.

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