tomFlowee
008eb35f95
The IDE include checker got to the point where it is actually useful and this removes a lot of unneeded includes. Naturally, especially for headers like util.h, this may mean we need to re-add includes in consuming cpp files that bloats the diff a bit.
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2017,2019 Tom Zander <tom@flowee.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FLOWEE_PRIMITIVES_FASTUNDOBLOCK_H
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#define FLOWEE_PRIMITIVES_FASTUNDOBLOCK_H
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#include <streaming/ConstBuffer.h>
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#include <streaming/MessageParser.h>
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#include <undo.h>
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#include <deque>
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class CBlockUndo;
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class FastUndoBlock
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{
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public:
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struct Item {
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/// Create a new item that was inserted into the UTXO, that when undone will be removed
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Item (const uint256 &prevTxId, int outputIndex)
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: prevTxId(prevTxId), outputIndex(outputIndex) {}
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/// Create a new item that was deleted from the UTXO, that when undo will be re-inserted.
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Item (const uint256 &prevTxId, int outputIndex, int blockHeight, int offsetInBlock)
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: prevTxId(prevTxId), outputIndex(outputIndex), blockHeight(blockHeight), offsetInBlock(offsetInBlock) {}
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Item() {}
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bool isInsert() const {
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return blockHeight == -1;
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}
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bool isValid() const {
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return !prevTxId.IsNull();
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}
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uint256 prevTxId;
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int outputIndex = -1;
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int blockHeight = -1;
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int offsetInBlock = -1;
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};
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FastUndoBlock(const Streaming::ConstBuffer &rawBlock);
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FastUndoBlock(const FastUndoBlock &other) = default;
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/// return the total size of this block.
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inline int size() const {
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return m_data.size();
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}
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/// \internal
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inline Streaming::ConstBuffer data() const {
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return m_data;
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}
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Item nextItem();
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void restartStream();
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private:
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Streaming::ConstBuffer m_data;
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Streaming::MessageParser m_parser;
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};
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class UndoBlockBuilder {
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public:
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UndoBlockBuilder(const uint256 &blockId, const std::shared_ptr<Streaming::BufferPool> &pool);
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void append(const std::deque<FastUndoBlock::Item> &items);
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std::deque<Streaming::ConstBuffer> finish() const;
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private:
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std::shared_ptr<Streaming::BufferPool> m_pool;
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std::deque<Streaming::ConstBuffer> m_data;
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};
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#endif
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