mirror of https://gitee.com/bigwinds/arangodb
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief helper for cache suite
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2017 ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Daniel H. Larkin
|
|
/// @author Copyright 2017, ArangoDB GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef UNITTESTS_CACHE_TRANSACTIONAL_STORE_H
|
|
#define UNITTESTS_CACHE_TRANSACTIONAL_STORE_H
|
|
|
|
#include "Basics/Common.h"
|
|
#include "Basics/StringBuffer.h"
|
|
#include "Cache/Manager.h"
|
|
#include "Cache/TransactionalCache.h"
|
|
|
|
#include <rocksdb/db.h>
|
|
#include <rocksdb/options.h>
|
|
#include <rocksdb/utilities/transaction.h>
|
|
#include <rocksdb/utilities/transaction_db.h>
|
|
|
|
#include <chrono>
|
|
|
|
namespace arangodb {
|
|
namespace cache {
|
|
|
|
class TransactionalStore {
|
|
public:
|
|
struct Document {
|
|
uint64_t key;
|
|
uint64_t timestamp;
|
|
uint64_t sequence;
|
|
|
|
Document();
|
|
Document(uint64_t k);
|
|
void advance();
|
|
void clear();
|
|
bool empty() const;
|
|
};
|
|
|
|
struct Transaction {
|
|
arangodb::cache::Transaction* cache;
|
|
rocksdb::Transaction* rocks;
|
|
|
|
Transaction(arangodb::cache::Transaction* c, rocksdb::Transaction* r);
|
|
};
|
|
|
|
public:
|
|
TransactionalStore(Manager* manager);
|
|
~TransactionalStore();
|
|
|
|
Cache* cache();
|
|
|
|
TransactionalStore::Transaction* beginTransaction(bool readOnly);
|
|
bool commit(TransactionalStore::Transaction* tx);
|
|
bool rollback(TransactionalStore::Transaction* tx);
|
|
|
|
bool insert(TransactionalStore::Transaction* tx, Document const& document);
|
|
bool update(TransactionalStore::Transaction* tx, Document const& document);
|
|
bool remove(TransactionalStore::Transaction* tx, uint64_t key);
|
|
Document lookup(TransactionalStore::Transaction* tx, uint64_t key);
|
|
|
|
private:
|
|
static std::atomic<uint32_t> _sequence;
|
|
Manager* _manager;
|
|
std::shared_ptr<Cache> _cache;
|
|
|
|
arangodb::basics::StringBuffer _directory;
|
|
uint32_t _id;
|
|
rocksdb::TransactionDB* _db;
|
|
rocksdb::ReadOptions _readOptions;
|
|
rocksdb::WriteOptions _writeOptions;
|
|
rocksdb::TransactionOptions _txOptions;
|
|
};
|
|
|
|
}; // end namespace cache
|
|
}; // end namespace arangodb
|
|
|
|
#endif
|