TomZ
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2018 Tom Zander <tomz@freedommail.ch>
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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/FastBlock.h>
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#include <primitives/FastTransaction.h>
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UnspentOutputData::UnspentOutputData(const UnspentOutput &uo)
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: m_uo(uo)
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{
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if (!uo.isValid())
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return;
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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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return;
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auto block = blockDb->loadBlock(blockIndex->GetBlockPos());
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if (!block.isFullBlock())
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return;
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assert(block.size() > uo.offsetInBlock());
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std::int64_t outputValue = -1;
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Tx::Iterator iter(block, uo.offsetInBlock());
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int outputs = 0;
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auto type = iter.next();
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while (type != Tx::End) {
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if (type == Tx::TxVersion) {
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m_txVer = iter.intData();
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} else if (type == Tx::OutputValue) {
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outputValue = static_cast<std::int64_t>(iter.longData());
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} else if (type == Tx::OutputScript) {
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if (outputs++ == outIndex()) {
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m_outputValue = outputValue;
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m_outputScript = iter.byteData();
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break;
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}
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}
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type = iter.next();
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}
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}
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