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rocksdb/utilities/transactions/optimistic_transaction_db_i...

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
// This source code is also licensed under the GPLv2 license found in the
// COPYING file in the root directory of this source tree.
#pragma once
#ifndef ROCKSDB_LITE
#include "rocksdb/db.h"
#include "rocksdb/options.h"
#include "rocksdb/utilities/optimistic_transaction_db.h"
namespace rocksdb {
class OptimisticTransactionDBImpl : public OptimisticTransactionDB {
public:
explicit OptimisticTransactionDBImpl(DB* db, bool take_ownership = true)
: OptimisticTransactionDB(db), db_(db), db_owner_(take_ownership) {}
~OptimisticTransactionDBImpl() {
if (!db_owner_) {
db_.release();
}
}
Transaction* BeginTransaction(const WriteOptions& write_options,
const OptimisticTransactionOptions& txn_options,
Transaction* old_txn) override;
DB* GetBaseDB() override { return db_.get(); }
private:
std::unique_ptr<DB> db_;
bool db_owner_;
void ReinitializeTransaction(Transaction* txn,
const WriteOptions& write_options,
const OptimisticTransactionOptions& txn_options =
OptimisticTransactionOptions());
};
} // namespace rocksdb
#endif // ROCKSDB_LITE