mirror of
https://github.com/danog/ton.git
synced 2024-12-02 17:38:33 +01:00
66 lines
1.7 KiB
C++
66 lines
1.7 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
|
|
#include "td/db/KeyValue.h"
|
|
#include "vm/db/DynamicBagOfCellsDb.h"
|
|
#include "vm/cells.h"
|
|
|
|
#include "td/utils/Slice.h"
|
|
#include "td/utils/Status.h"
|
|
|
|
namespace vm {
|
|
using KeyValue = td::KeyValue;
|
|
using KeyValueReader = td::KeyValueReader;
|
|
|
|
class CellLoader {
|
|
public:
|
|
struct LoadResult {
|
|
public:
|
|
enum { Ok, NotFound } status{NotFound};
|
|
|
|
Ref<DataCell> &cell() {
|
|
DCHECK(status == Ok);
|
|
return cell_;
|
|
}
|
|
|
|
td::int32 refcnt() const {
|
|
return refcnt_;
|
|
}
|
|
|
|
Ref<DataCell> cell_;
|
|
td::int32 refcnt_{0};
|
|
};
|
|
CellLoader(std::shared_ptr<KeyValueReader> reader);
|
|
td::Result<LoadResult> load(td::Slice hash, bool need_data, ExtCellCreator &ext_cell_creator);
|
|
|
|
private:
|
|
std::shared_ptr<KeyValueReader> reader_;
|
|
};
|
|
|
|
class CellStorer {
|
|
public:
|
|
CellStorer(KeyValue &kv);
|
|
td::Status erase(td::Slice hash);
|
|
td::Status set(td::int32 refcnt, const DataCell &cell);
|
|
|
|
private:
|
|
KeyValue &kv_;
|
|
};
|
|
} // namespace vm
|