tomFlowee
0a2e552168
This introduces a new BlockHeader helper class which Block and MutableBlock can both produce, which helps a lot of methods to be ported to no longer be dependent on us using a MutableBlock object, which is too costly to use when we have no intention to alter the block.
133 lines
3.5 KiB
C++
133 lines
3.5 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2009-2010 Satoshi Nakamoto
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* Copyright (C) 2009-2015 The Bitcoin Core developers
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* Copyright (C) 2021 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_MUTABLEBLOCK_H
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#define FLOWEE_PRIMITIVES_MUTABLEBLOCK_H
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#include "primitives/Block.h"
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#include "primitives/transaction.h"
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#include "serialize.h"
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#include "uint256.h"
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/** Nodes collect new transactions into a block, hash them into a hash tree,
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* and scan through nonce values to make the block's hash satisfy proof-of-work
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* requirements. When they solve the proof-of-work, they broadcast the block
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* to everyone and the block is added to the block chain. The first transaction
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* in the block is a special one that creates a new coin owned by the creator
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* of the block.
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*/
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class BlockHeaderFields
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{
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public:
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// header
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int32_t nVersion;
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uint256 hashPrevBlock;
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uint256 hashMerkleRoot;
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uint32_t nTime;
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uint32_t nBits;
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uint32_t nNonce;
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inline BlockHeaderFields() {
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setNull();
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}
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ADD_SERIALIZE_METHODS
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
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READWRITE(this->nVersion);
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nVersion = this->nVersion;
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READWRITE(hashPrevBlock);
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READWRITE(hashMerkleRoot);
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READWRITE(nTime);
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READWRITE(nBits);
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READWRITE(nNonce);
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}
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inline void setNull() {
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nVersion = 0;
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hashPrevBlock.SetNull();
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hashMerkleRoot.SetNull();
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nTime = 0;
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nBits = 0;
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nNonce = 0;
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}
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inline bool isNull() const {
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return (nBits == 0);
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}
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uint256 createHash() const;
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inline int64_t blockTime() const {
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return (int64_t)nTime;
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}
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};
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class MutableBlock : public BlockHeaderFields
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{
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public:
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// network and disk
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std::vector<CTransaction> vtx;
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MutableBlock()
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{
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setNull();
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}
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MutableBlock(const BlockHeaderFields &header)
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{
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setNull();
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*((BlockHeaderFields*)this) = header;
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}
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ADD_SERIALIZE_METHODS
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
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READWRITE(*(BlockHeaderFields*)this);
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READWRITE(vtx);
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}
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void setNull()
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{
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BlockHeaderFields::setNull();
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vtx.clear();
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}
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/**
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* Helper method to convert to the new style (non serializable) class.
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*/
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BlockHeader blockHeader() const
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{
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BlockHeader block;
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block.nVersion = nVersion;
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block.hashPrevBlock = hashPrevBlock;
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block.hashMerkleRoot = hashMerkleRoot;
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block.nTime = nTime;
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block.nBits = nBits;
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block.nNonce = nNonce;
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return block;
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}
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};
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#endif
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