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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include "mongo/db/storage/record_store.h"
namespace mongo {
/**
* Manages the lifetime of a temporary RecordStore. Unless keep() is called, the managed RecordStore
* will be dropped after destruction.
*/
class TemporaryRecordStore {
public:
TemporaryRecordStore(std::unique_ptr<RecordStore> rs) : _rs(std::move(rs)){};
virtual ~TemporaryRecordStore() {}
// Not copyable.
TemporaryRecordStore(const TemporaryRecordStore&) = delete;
TemporaryRecordStore& operator=(const TemporaryRecordStore&) = delete;
// Move constructor.
TemporaryRecordStore(TemporaryRecordStore&& other) = default;
// If called, the RecordStore will not be dropped when the TemporaryRecordStore is destructed.
void keep() {
_keep = true;
}
RecordStore* rs() {
return _rs.get();
}
const RecordStore* rs() const {
return _rs.get();
}
protected:
std::unique_ptr<RecordStore> _rs;
bool _keep = false;
};
} // namespace mongo
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