fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Cheng Chang 0ea7db768e Abstract out LockManager interface (#7532) ... Summary: In order to be able to introduce more locking protocols, we need to abstract out the locking subsystem in TransactionDB into a set of interfaces. PR https://github.com/facebook/rocksdb/pull/7013 introduces interface `LockTracker`. This PR is a follow up to take the first step to abstract out a `LockManager` interface. Further modifications to the interface may be needed when introducing the first implementation of range lock. But the idea here is to put the range lock implementation based on range tree under the `utilities/transactions/lock/range/range_tree`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7532 Test Plan: point_lock_manager_test Reviewed By: ajkr Differential Revision: D24238731 Pulled By: cheng-chang fbshipit-source-id: 2a9458cd8b3fb008d9529dbc4d3b28c24631f463		4 years ago
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point_lock_manager.cc	Abstract out LockManager interface (#7532)	4 years ago
point_lock_manager.h	Abstract out LockManager interface (#7532)	4 years ago
point_lock_manager_test.cc	Abstract out LockManager interface (#7532)	4 years ago
point_lock_tracker.cc	Abstract out LockManager interface (#7532)	4 years ago
point_lock_tracker.h	Abstract out LockManager interface (#7532)	4 years ago