51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2018-2026 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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#include "BlocksDB.h"
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#include "UnspentOutputData.h"
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#include "chain.h"
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#include <primitives/Block.h>
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#include <primitives/Tx.h>
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UnspentOutputData UnspentOutputData::fromUtxoDB(const UnspentOutput &uo)
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{
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if (!uo.isValid())
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throw std::runtime_error("invalid UnspentOutput");
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assert(uo.offsetInBlock() > 80);
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Blocks::DB *blockDb = Blocks::DB::instance();
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auto blockIndex = blockDb->headerChain()[uo.blockHeight()];
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if (blockIndex == nullptr)
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throw std::runtime_error("Invalid blockheight");
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auto block = blockDb->loadBlock(blockIndex->GetBlockPos());
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if (!block.isFullBlock())
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throw std::runtime_error("Missing block");
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assert(block.size() > uo.offsetInBlock());
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Tx::Iterator iter(block, uo.offsetInBlock());
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iter.next();
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assert(iter.tag() == Tx::TxVersion);
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auto prevTxVersion = iter.intData();
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auto answer = UnspentOutputData(iter.nextOutput(uo.outIndex()));
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answer.blockHeight = uo.blockHeight();
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answer.isCoinbase = uo.offsetInBlock() < 100;
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answer.prevTxVersion = prevTxVersion;
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return answer;
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}
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