mirror of
https://github.com/SChernykh/p2pool.git
synced 2024-12-22 19:39:22 +00:00
302 lines
9 KiB
C++
302 lines
9 KiB
C++
/*
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* This file is part of the Monero P2Pool <https://github.com/SChernykh/p2pool>
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* Copyright (c) 2021 SChernykh <https://github.com/SChernykh>
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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, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 "common.h"
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#include "pool_block.h"
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#include "keccak.h"
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#include "side_chain.h"
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#include "pow_hash.h"
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#include "crypto.h"
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static constexpr char log_category_prefix[] = "PoolBlock ";
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#include "pool_block_parser.inl"
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namespace p2pool {
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PoolBlock::PoolBlock()
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: m_mainChainHeaderSize(0)
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, m_mainChainMinerTxSize(0)
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, m_mainChainOutputsOffset(0)
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, m_mainChainOutputsBlobSize(0)
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, m_majorVersion(0)
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, m_minorVersion(0)
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, m_timestamp(0)
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, m_prevId{}
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, m_nonce(0)
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, m_txinGenHeight(0)
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, m_txkeyPub{}
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, m_extraNonceSize(0)
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, m_extraNonce(0)
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, m_txkeySec{}
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, m_parent{}
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, m_sidechainHeight(0)
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, m_difficulty{}
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, m_cumulativeDifficulty{}
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, m_sidechainId{}
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, m_depth(0)
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, m_verified(false)
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, m_invalid(false)
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, m_broadcasted(false)
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, m_wantBroadcast(false)
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, m_localTimestamp(time(nullptr))
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{
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uv_mutex_init_checked(&m_lock);
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m_mainChainData.reserve(48 * 1024);
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m_outputs.reserve(2048);
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m_transactions.reserve(256);
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m_tmpInts.reserve(m_transactions.capacity() * HASH_SIZE);
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m_sideChainData.reserve(512);
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m_uncles.reserve(8);
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m_tmpTxExtra.reserve(80);
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}
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PoolBlock::PoolBlock(const PoolBlock& b)
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{
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uv_mutex_init_checked(&m_lock);
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operator=(b);
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}
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PoolBlock& PoolBlock::operator=(const PoolBlock& b)
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{
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if (this == &b) {
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return *this;
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}
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const int lock_result = uv_mutex_trylock(&b.m_lock);
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if (lock_result) {
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LOGERR(1, "operator= uv_mutex_trylock failed. Fix the code!");
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}
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m_mainChainData = b.m_mainChainData;
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m_mainChainHeaderSize = b.m_mainChainHeaderSize;
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m_mainChainMinerTxSize = b.m_mainChainMinerTxSize;
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m_mainChainOutputsOffset = b.m_mainChainOutputsOffset;
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m_mainChainOutputsBlobSize = b.m_mainChainOutputsBlobSize;
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m_majorVersion = b.m_majorVersion;
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m_minorVersion = b.m_minorVersion;
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m_timestamp = b.m_timestamp;
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m_prevId = b.m_prevId;
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m_nonce = b.m_nonce;
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m_txinGenHeight = b.m_txinGenHeight;
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m_outputs = b.m_outputs;
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m_txkeyPub = b.m_txkeyPub;
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m_extraNonceSize = b.m_extraNonceSize;
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m_extraNonce = b.m_extraNonce;
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m_transactions = b.m_transactions;
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m_sideChainData = b.m_sideChainData;
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m_minerWallet = b.m_minerWallet;
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m_txkeySec = b.m_txkeySec;
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m_parent = b.m_parent;
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m_uncles = b.m_uncles;
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m_sidechainHeight = b.m_sidechainHeight;
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m_difficulty = b.m_difficulty;
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m_cumulativeDifficulty = b.m_cumulativeDifficulty;
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m_sidechainId = b.m_sidechainId;
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m_tmpTxExtra = b.m_tmpTxExtra;
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m_tmpInts = b.m_tmpInts;
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m_depth = b.m_depth;
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m_verified = b.m_verified;
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m_invalid = b.m_invalid;
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m_broadcasted = b.m_broadcasted;
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m_wantBroadcast = b.m_wantBroadcast;
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m_localTimestamp = time(nullptr);
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if (lock_result == 0) {
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uv_mutex_unlock(&b.m_lock);
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}
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return *this;
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}
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PoolBlock::~PoolBlock()
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{
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uv_mutex_destroy(&m_lock);
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}
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void PoolBlock::serialize_mainchain_data(uint32_t nonce, uint32_t extra_nonce, const hash& sidechain_hash)
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{
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MutexLock lock(m_lock);
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m_mainChainData.clear();
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// Header
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m_mainChainData.push_back(m_majorVersion);
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m_mainChainData.push_back(m_minorVersion);
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writeVarint(m_timestamp, m_mainChainData);
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m_mainChainData.insert(m_mainChainData.end(), m_prevId.h, m_prevId.h + HASH_SIZE);
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m_mainChainData.insert(m_mainChainData.end(), reinterpret_cast<uint8_t*>(&nonce), reinterpret_cast<uint8_t*>(&nonce) + NONCE_SIZE);
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m_mainChainHeaderSize = m_mainChainData.size();
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// Miner tx
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m_mainChainData.push_back(TX_VERSION);
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writeVarint(m_txinGenHeight + MINER_REWARD_UNLOCK_TIME, m_mainChainData);
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m_mainChainData.push_back(1);
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m_mainChainData.push_back(TXIN_GEN);
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writeVarint(m_txinGenHeight, m_mainChainData);
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m_mainChainOutputsOffset = static_cast<int>(m_mainChainData.size());
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writeVarint(m_outputs.size(), m_mainChainData);
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for (TxOutput& output : m_outputs) {
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writeVarint(output.m_reward, m_mainChainData);
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m_mainChainData.push_back(TXOUT_TO_KEY);
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m_mainChainData.insert(m_mainChainData.end(), output.m_ephPublicKey.h, output.m_ephPublicKey.h + HASH_SIZE);
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}
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m_mainChainOutputsBlobSize = static_cast<int>(m_mainChainData.size()) - m_mainChainOutputsOffset;
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m_tmpTxExtra.clear();
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m_tmpTxExtra.push_back(TX_EXTRA_TAG_PUBKEY);
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m_tmpTxExtra.insert(m_tmpTxExtra.end(), m_txkeyPub.h, m_txkeyPub.h + HASH_SIZE);
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m_tmpTxExtra.push_back(TX_EXTRA_NONCE);
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writeVarint(m_extraNonceSize, m_tmpTxExtra);
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m_extraNonce = extra_nonce;
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m_tmpTxExtra.insert(m_tmpTxExtra.end(), reinterpret_cast<uint8_t*>(&m_extraNonce), reinterpret_cast<uint8_t*>(&m_extraNonce) + EXTRA_NONCE_SIZE);
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if (m_extraNonceSize > EXTRA_NONCE_SIZE) {
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m_tmpTxExtra.insert(m_tmpTxExtra.end(), m_extraNonceSize - EXTRA_NONCE_SIZE, 0);
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}
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m_tmpTxExtra.push_back(TX_EXTRA_MERGE_MINING_TAG);
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writeVarint(HASH_SIZE, m_tmpTxExtra);
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m_tmpTxExtra.insert(m_tmpTxExtra.end(), sidechain_hash.h, sidechain_hash.h + HASH_SIZE);
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writeVarint(m_tmpTxExtra.size(), m_mainChainData);
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m_mainChainData.insert(m_mainChainData.end(), m_tmpTxExtra.begin(), m_tmpTxExtra.end());
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m_tmpTxExtra.clear();
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m_mainChainData.push_back(0);
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m_mainChainMinerTxSize = m_mainChainData.size() - m_mainChainHeaderSize;
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writeVarint(m_transactions.size() - 1, m_mainChainData);
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const uint8_t* data = reinterpret_cast<const uint8_t*>(m_transactions.data());
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m_mainChainData.insert(m_mainChainData.end(), data + HASH_SIZE, data + m_transactions.size() * HASH_SIZE);
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}
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void PoolBlock::serialize_sidechain_data()
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{
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MutexLock lock(m_lock);
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m_sideChainData.clear();
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m_sideChainData.reserve((m_uncles.size() + 4) * HASH_SIZE + 11);
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const hash& spend = m_minerWallet.spend_public_key();
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const hash& view = m_minerWallet.view_public_key();
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m_sideChainData.insert(m_sideChainData.end(), spend.h, spend.h + HASH_SIZE);
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m_sideChainData.insert(m_sideChainData.end(), view.h, view.h + HASH_SIZE);
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m_sideChainData.insert(m_sideChainData.end(), m_txkeySec.h, m_txkeySec.h + HASH_SIZE);
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m_sideChainData.insert(m_sideChainData.end(), m_parent.h, m_parent.h + HASH_SIZE);
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writeVarint(m_uncles.size(), m_sideChainData);
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for (const hash& id : m_uncles) {
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m_sideChainData.insert(m_sideChainData.end(), id.h, id.h + HASH_SIZE);
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}
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writeVarint(m_sidechainHeight, m_sideChainData);
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writeVarint(m_difficulty.lo, m_sideChainData);
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writeVarint(m_difficulty.hi, m_sideChainData);
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writeVarint(m_cumulativeDifficulty.lo, m_sideChainData);
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writeVarint(m_cumulativeDifficulty.hi, m_sideChainData);
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}
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bool PoolBlock::get_pow_hash(RandomX_Hasher* hasher, const hash& seed_hash, hash& pow_hash)
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{
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alignas(8) uint8_t hashes[HASH_SIZE * 3];
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uint64_t* second_hash = reinterpret_cast<uint64_t*>(hashes + HASH_SIZE);
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second_hash[0] = 0x14281e7a9e7836bcull;
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second_hash[1] = 0x7d818f8229424636ull;
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second_hash[2] = 0x9165d677b4f71266ull;
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second_hash[3] = 0x8ac9bc64e0a996ffull;
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memset(hashes + HASH_SIZE * 2, 0, HASH_SIZE);
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uint64_t count;
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uint8_t blob[128];
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size_t blob_size = 0;
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{
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MutexLock lock(m_lock);
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if (!m_mainChainHeaderSize || !m_mainChainMinerTxSize || (m_mainChainData.size() < m_mainChainHeaderSize + m_mainChainMinerTxSize)) {
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LOGERR(1, "tried to calculate PoW of uninitialized block");
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return false;
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}
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blob_size = m_mainChainHeaderSize;
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memcpy(blob, m_mainChainData.data(), blob_size);
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uint8_t* miner_tx = m_mainChainData.data() + m_mainChainHeaderSize;
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keccak(miner_tx, static_cast<int>(m_mainChainMinerTxSize) - 1, reinterpret_cast<uint8_t*>(hashes), HASH_SIZE);
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count = m_transactions.size();
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uint8_t* h = reinterpret_cast<uint8_t*>(m_transactions.data());
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keccak(reinterpret_cast<uint8_t*>(hashes), HASH_SIZE * 3, h, HASH_SIZE);
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if (count == 1) {
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memcpy(blob + blob_size, h, HASH_SIZE);
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}
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else if (count == 2) {
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keccak(h, HASH_SIZE * 2, blob + blob_size, HASH_SIZE);
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}
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else {
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size_t i, j, cnt;
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for (i = 0, cnt = 1; cnt <= count; ++i, cnt <<= 1) {}
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cnt >>= 1;
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m_tmpInts.resize(cnt * HASH_SIZE);
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memcpy(m_tmpInts.data(), h, (cnt * 2 - count) * HASH_SIZE);
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for (i = cnt * 2 - count, j = cnt * 2 - count; j < cnt; i += 2, ++j) {
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keccak(h + i * HASH_SIZE, HASH_SIZE * 2, m_tmpInts.data() + j * HASH_SIZE, HASH_SIZE);
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}
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while (cnt > 2) {
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cnt >>= 1;
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for (i = 0, j = 0; j < cnt; i += 2, ++j) {
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keccak(m_tmpInts.data() + i * HASH_SIZE, HASH_SIZE * 2, m_tmpInts.data() + j * HASH_SIZE, HASH_SIZE);
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}
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}
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keccak(m_tmpInts.data(), HASH_SIZE * 2, blob + blob_size, HASH_SIZE);
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}
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}
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blob_size += HASH_SIZE;
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writeVarint(count, [&blob, &blob_size](uint8_t b) { blob[blob_size++] = b; });
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return hasher->calculate(blob, blob_size, seed_hash, pow_hash);
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}
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} // namespace p2pool
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