dc9d70de65
Summary: Optimistic transactions supporting begin/commit/rollback semantics. Currently relies on checking the memtable to determine if there are any collisions at commit time. Not yet implemented would be a way of enuring the memtable has some minimum amount of history so that we won't fail to commit when the memtable is empty. You should probably start with transaction.h to get an overview of what is currently supported. Test Plan: Added a new test, but still need to look into stress testing. Reviewers: yhchiang, igor, rven, sdong Reviewed By: sdong Subscribers: adamretter, MarkCallaghan, leveldb, dhruba Differential Revision: https://reviews.facebook.net/D33435
34 lines
961 B
C++
34 lines
961 B
C++
// Copyright (c) 2015, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#ifndef ROCKSDB_LITE
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#include "rocksdb/db.h"
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#include "rocksdb/options.h"
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#include "rocksdb/utilities/optimistic_transaction_db.h"
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namespace rocksdb {
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class OptimisticTransactionDBImpl : public OptimisticTransactionDB {
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public:
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explicit OptimisticTransactionDBImpl(DB* db)
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: OptimisticTransactionDB(db), db_(db) {}
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~OptimisticTransactionDBImpl() {}
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OptimisticTransaction* BeginTransaction(
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const WriteOptions& write_options,
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const OptimisticTransactionOptions& txn_options) override;
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DB* GetBaseDB() override { return db_.get(); }
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private:
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std::unique_ptr<DB> db_;
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};
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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