mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include "td/db/KeyValue.h"
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#include "vm/db/DynamicBagOfCellsDb.h"
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#include "vm/cells.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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namespace vm {
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using KeyValue = td::KeyValue;
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using KeyValueReader = td::KeyValueReader;
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class CellLoader {
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public:
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struct LoadResult {
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public:
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enum { Ok, NotFound } status{NotFound};
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Ref<DataCell> &cell() {
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DCHECK(status == Ok);
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return cell_;
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}
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td::int32 refcnt() const {
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return refcnt_;
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}
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Ref<DataCell> cell_;
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td::int32 refcnt_{0};
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};
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CellLoader(std::shared_ptr<KeyValueReader> reader);
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td::Result<LoadResult> load(td::Slice hash, bool need_data, ExtCellCreator &ext_cell_creator);
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private:
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std::shared_ptr<KeyValueReader> reader_;
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};
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class CellStorer {
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public:
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CellStorer(KeyValue &kv);
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td::Status erase(td::Slice hash);
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td::Status set(td::int32 refcnt, const DataCell &cell);
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private:
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KeyValue &kv_;
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};
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} // namespace vm
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