2016-01-18 15:33:29 +00:00
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// 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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2015-12-09 13:19:03 +00:00
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#include "MinerManager.h"
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#include <System/EventLock.h>
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#include <System/InterruptedException.h>
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#include <System/Timer.h>
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#include "Common/StringTools.h"
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#include "CryptoNoteConfig.h"
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#include "CryptoNoteCore/CryptoNoteTools.h"
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#include "CryptoNoteCore/CryptoNoteFormatUtils.h"
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#include "CryptoNoteCore/TransactionExtra.h"
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#include "Rpc/HttpClient.h"
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#include "Rpc/CoreRpcServerCommandsDefinitions.h"
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#include "Rpc/JsonRpc.h"
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using namespace CryptoNote;
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namespace Miner {
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namespace {
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MinerEvent BlockMinedEvent() {
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MinerEvent event;
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event.type = MinerEventType::BLOCK_MINED;
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return event;
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}
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MinerEvent BlockchainUpdatedEvent() {
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MinerEvent event;
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event.type = MinerEventType::BLOCKCHAIN_UPDATED;
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return event;
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}
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}
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MinerManager::MinerManager(System::Dispatcher& dispatcher, const CryptoNote::MiningConfig& config, Logging::ILogger& logger) :
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m_dispatcher(dispatcher),
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m_logger(logger, "MinerManager"),
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m_contextGroup(dispatcher),
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m_config(config),
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m_miner(dispatcher, logger),
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m_blockchainMonitor(dispatcher, m_config.daemonHost, m_config.daemonPort, m_config.scanPeriod, logger),
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m_eventOccurred(dispatcher),
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m_httpEvent(dispatcher),
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m_lastBlockTimestamp(0) {
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m_httpEvent.set();
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}
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MinerManager::~MinerManager() {
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}
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void MinerManager::start() {
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m_logger(Logging::DEBUGGING) << "starting";
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BlockMiningParameters params;
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for (;;) {
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m_logger(Logging::INFO) << "requesting mining parameters";
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try {
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params = requestMiningParameters(m_dispatcher, m_config.daemonHost, m_config.daemonPort, m_config.miningAddress);
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} catch (ConnectException& e) {
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m_logger(Logging::WARNING) << "Couldn't connect to daemon: " << e.what();
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System::Timer timer(m_dispatcher);
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timer.sleep(std::chrono::seconds(m_config.scanPeriod));
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continue;
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}
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adjustBlockTemplate(params.blockTemplate);
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break;
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}
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startBlockchainMonitoring();
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startMining(params);
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eventLoop();
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}
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void MinerManager::eventLoop() {
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size_t blocksMined = 0;
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for (;;) {
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m_logger(Logging::DEBUGGING) << "waiting for event";
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MinerEvent event = waitEvent();
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switch (event.type) {
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case MinerEventType::BLOCK_MINED: {
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m_logger(Logging::DEBUGGING) << "got BLOCK_MINED event";
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stopBlockchainMonitoring();
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if (submitBlock(m_minedBlock, m_config.daemonHost, m_config.daemonPort)) {
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m_lastBlockTimestamp = m_minedBlock.timestamp;
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if (m_config.blocksLimit != 0 && ++blocksMined == m_config.blocksLimit) {
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m_logger(Logging::INFO) << "Miner mined requested " << m_config.blocksLimit << " blocks. Quitting";
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return;
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}
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}
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BlockMiningParameters params = requestMiningParameters(m_dispatcher, m_config.daemonHost, m_config.daemonPort, m_config.miningAddress);
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adjustBlockTemplate(params.blockTemplate);
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startBlockchainMonitoring();
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startMining(params);
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break;
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}
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case MinerEventType::BLOCKCHAIN_UPDATED: {
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m_logger(Logging::DEBUGGING) << "got BLOCKCHAIN_UPDATED event";
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stopMining();
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stopBlockchainMonitoring();
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BlockMiningParameters params = requestMiningParameters(m_dispatcher, m_config.daemonHost, m_config.daemonPort, m_config.miningAddress);
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adjustBlockTemplate(params.blockTemplate);
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startBlockchainMonitoring();
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startMining(params);
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break;
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}
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default:
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assert(false);
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return;
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}
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}
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}
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MinerEvent MinerManager::waitEvent() {
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while(m_events.empty()) {
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m_eventOccurred.wait();
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m_eventOccurred.clear();
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}
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MinerEvent event = std::move(m_events.front());
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m_events.pop();
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return event;
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}
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void MinerManager::pushEvent(MinerEvent&& event) {
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m_events.push(std::move(event));
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m_eventOccurred.set();
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}
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void MinerManager::startMining(const CryptoNote::BlockMiningParameters& params) {
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m_contextGroup.spawn([this, params] () {
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try {
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m_minedBlock = m_miner.mine(params, m_config.threadCount);
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pushEvent(BlockMinedEvent());
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} catch (System::InterruptedException&) {
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} catch (std::exception& e) {
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m_logger(Logging::ERROR) << "Miner context unexpectedly finished: " << e.what();
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}
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});
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}
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void MinerManager::stopMining() {
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m_miner.stop();
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}
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void MinerManager::startBlockchainMonitoring() {
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m_contextGroup.spawn([this] () {
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try {
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m_blockchainMonitor.waitBlockchainUpdate();
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pushEvent(BlockchainUpdatedEvent());
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} catch (System::InterruptedException&) {
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} catch (std::exception& e) {
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m_logger(Logging::ERROR) << "BlockchainMonitor context unexpectedly finished: " << e.what();
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}
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});
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}
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void MinerManager::stopBlockchainMonitoring() {
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m_blockchainMonitor.stop();
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}
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bool MinerManager::submitBlock(const Block& minedBlock, const std::string& daemonHost, uint16_t daemonPort) {
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try {
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HttpClient client(m_dispatcher, daemonHost, daemonPort);
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COMMAND_RPC_SUBMITBLOCK::request request;
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request.emplace_back(Common::toHex(toBinaryArray(minedBlock)));
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COMMAND_RPC_SUBMITBLOCK::response response;
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System::EventLock lk(m_httpEvent);
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JsonRpc::invokeJsonRpcCommand(client, "submitblock", request, response);
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m_logger(Logging::INFO) << "Block has been successfully submitted. Block hash: " << Common::podToHex(get_block_hash(minedBlock));
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return true;
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} catch (std::exception& e) {
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m_logger(Logging::WARNING) << "Couldn't submit block: " << Common::podToHex(get_block_hash(minedBlock)) << ", reason: " << e.what();
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return false;
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}
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}
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BlockMiningParameters MinerManager::requestMiningParameters(System::Dispatcher& dispatcher, const std::string& daemonHost, uint16_t daemonPort, const std::string& miningAddress) {
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try {
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HttpClient client(dispatcher, daemonHost, daemonPort);
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COMMAND_RPC_GETBLOCKTEMPLATE::request request;
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request.wallet_address = miningAddress;
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request.reserve_size = 0;
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COMMAND_RPC_GETBLOCKTEMPLATE::response response;
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System::EventLock lk(m_httpEvent);
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JsonRpc::invokeJsonRpcCommand(client, "getblocktemplate", request, response);
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if (response.status != CORE_RPC_STATUS_OK) {
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throw std::runtime_error("Core responded with wrong status: " + response.status);
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}
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BlockMiningParameters params;
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params.difficulty = response.difficulty;
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if(!fromBinaryArray(params.blockTemplate, Common::fromHex(response.blocktemplate_blob))) {
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throw std::runtime_error("Couldn't deserialize block template");
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}
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m_logger(Logging::DEBUGGING) << "Requested block template with previous block hash: " << Common::podToHex(params.blockTemplate.previousBlockHash);
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return params;
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} catch (std::exception& e) {
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m_logger(Logging::WARNING) << "Couldn't get block template: " << e.what();
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throw;
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}
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}
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void MinerManager::adjustBlockTemplate(CryptoNote::Block& blockTemplate) const {
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if (m_config.firstBlockTimestamp == 0) {
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//no need to fix timestamp
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return;
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}
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if (m_lastBlockTimestamp == 0) {
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blockTemplate.timestamp = m_config.firstBlockTimestamp;
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} else if (m_lastBlockTimestamp != 0 && m_config.blockTimestampInterval != 0) {
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blockTemplate.timestamp = m_lastBlockTimestamp + m_config.blockTimestampInterval;
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}
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}
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} //namespace Miner
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