76 lines
2.2 KiB
C++
Executable file
76 lines
2.2 KiB
C++
Executable file
// Copyright (c) 2011-2016 The Cryptonote developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "BlockIndex.h"
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#include <boost/utility/value_init.hpp>
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#include "CryptoNoteSerialization.h"
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#include "Serialization/SerializationOverloads.h"
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namespace CryptoNote {
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Crypto::Hash BlockIndex::getBlockId(uint32_t height) const {
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assert(height < m_container.size());
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return m_container[static_cast<size_t>(height)];
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}
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std::vector<Crypto::Hash> BlockIndex::getBlockIds(uint32_t startBlockIndex, uint32_t maxCount) const {
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std::vector<Crypto::Hash> result;
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if (startBlockIndex >= m_container.size()) {
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return result;
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}
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size_t count = std::min(static_cast<size_t>(maxCount), m_container.size() - static_cast<size_t>(startBlockIndex));
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result.reserve(count);
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for (size_t i = 0; i < count; ++i) {
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result.push_back(m_container[startBlockIndex + i]);
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}
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return result;
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}
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bool BlockIndex::findSupplement(const std::vector<Crypto::Hash>& ids, uint32_t& offset) const {
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for (const auto& id : ids) {
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if (getBlockHeight(id, offset)) {
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return true;
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}
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}
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return false;
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}
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std::vector<Crypto::Hash> BlockIndex::buildSparseChain(const Crypto::Hash& startBlockId) const {
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assert(m_index.count(startBlockId) > 0);
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uint32_t startBlockHeight;
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getBlockHeight(startBlockId, startBlockHeight);
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std::vector<Crypto::Hash> result;
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size_t sparseChainEnd = static_cast<size_t>(startBlockHeight + 1);
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for (size_t i = 1; i <= sparseChainEnd; i *= 2) {
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result.emplace_back(m_container[sparseChainEnd - i]);
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}
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if (result.back() != m_container[0]) {
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result.emplace_back(m_container[0]);
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}
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return result;
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}
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Crypto::Hash BlockIndex::getTailId() const {
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assert(!m_container.empty());
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return m_container.back();
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}
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void BlockIndex::serialize(ISerializer& s) {
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if (s.type() == ISerializer::INPUT) {
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readSequence<Crypto::Hash>(std::back_inserter(m_container), "index", s);
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} else {
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writeSequence<Crypto::Hash>(m_container.begin(), m_container.end(), "index", s);
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}
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}
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}
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