mirror of
https://github.com/ton-blockchain/ton
synced 2025-02-13 11:42:18 +00:00
62 lines
1.9 KiB
C++
62 lines
1.9 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 "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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class CellLoader;
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class CellStorer;
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} // namespace vm
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namespace vm {
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class ExtCellCreator {
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public:
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virtual ~ExtCellCreator() = default;
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virtual td::Result<Ref<Cell>> ext_cell(Cell::LevelMask level_mask, td::Slice hash, td::Slice depth) = 0;
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};
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class DynamicBagOfCellsDb {
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public:
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virtual ~DynamicBagOfCellsDb() = default;
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virtual td::Result<Ref<DataCell>> load_cell(td::Slice hash) = 0;
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struct Stats {
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td::int64 cells_total_count{0};
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td::int64 cells_total_size{0};
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void apply_diff(Stats diff) {
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cells_total_count += diff.cells_total_count;
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cells_total_size += diff.cells_total_size;
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}
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};
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virtual void inc(const Ref<Cell> &old_root) = 0;
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virtual void dec(const Ref<Cell> &old_root) = 0;
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virtual td::Status prepare_commit() = 0;
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virtual Stats get_stats_diff() = 0;
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virtual td::Status commit(CellStorer &) = 0;
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// restart with new loader will also reset stats_diff
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virtual td::Status set_loader(std::unique_ptr<CellLoader> loader) = 0;
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static std::unique_ptr<DynamicBagOfCellsDb> create();
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};
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} // namespace vm
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