mirror of
https://github.com/danog/ton.git
synced 2024-12-03 09:58:01 +01:00
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
|
|
This file is part of TON Blockchain Library.
|
|
|
|
TON Blockchain Library is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
TON Blockchain Library 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
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Copyright 2017-2019 Telegram Systems LLP
|
|
*/
|
|
#pragma once
|
|
|
|
#if !TDDB_USE_ROCKSDB
|
|
#error "RocksDb is not supported"
|
|
#endif
|
|
|
|
#include "td/db/KeyValue.h"
|
|
#include "td/utils/Status.h"
|
|
|
|
namespace rocksdb {
|
|
class OptimisticTransactionDB;
|
|
class Transaction;
|
|
class WriteBatch;
|
|
class Snapshot;
|
|
class Statistics;
|
|
} // namespace rocksdb
|
|
|
|
namespace td {
|
|
class RocksDb : public KeyValue {
|
|
public:
|
|
static Status destroy(Slice path);
|
|
RocksDb clone() const;
|
|
static Result<RocksDb> open(std::string path);
|
|
|
|
Result<GetStatus> get(Slice key, std::string &value) override;
|
|
Status set(Slice key, Slice value) override;
|
|
Status erase(Slice key) override;
|
|
Result<size_t> count(Slice prefix) override;
|
|
|
|
Status begin_transaction() override;
|
|
Status commit_transaction() override;
|
|
Status abort_transaction() override;
|
|
Status flush() override;
|
|
|
|
Status begin_snapshot();
|
|
Status end_snapshot();
|
|
|
|
std::unique_ptr<KeyValueReader> snapshot() override;
|
|
std::string stats() const override;
|
|
|
|
RocksDb(RocksDb &&);
|
|
RocksDb &operator=(RocksDb &&);
|
|
~RocksDb();
|
|
|
|
private:
|
|
std::shared_ptr<rocksdb::OptimisticTransactionDB> db_;
|
|
std::shared_ptr<rocksdb::Statistics> statistics_;
|
|
|
|
std::unique_ptr<rocksdb::Transaction> transaction_;
|
|
std::unique_ptr<rocksdb::WriteBatch> write_batch_;
|
|
class UnreachableDeleter {
|
|
public:
|
|
template <class T>
|
|
void operator()(T *) {
|
|
UNREACHABLE();
|
|
}
|
|
};
|
|
std::unique_ptr<const rocksdb::Snapshot, UnreachableDeleter> snapshot_;
|
|
|
|
explicit RocksDb(std::shared_ptr<rocksdb::OptimisticTransactionDB> db,
|
|
std::shared_ptr<rocksdb::Statistics> statistics);
|
|
};
|
|
} // namespace td
|