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83 lines
2.7 KiB
83 lines
2.7 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum 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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cpp-ethereum 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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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file EthashSealEngine.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*
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* Determines the PoW algorithm.
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*/
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#include "EthashSealEngine.h"
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#include "EthashCPUMiner.h"
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#include "EthashGPUMiner.h"
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#include "EthashCUDAMiner.h"
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using namespace std;
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using namespace dev;
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using namespace eth;
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EthashSealEngine::EthashSealEngine()
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{
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map<string, GenericFarm<EthashProofOfWork>::SealerDescriptor> sealers;
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sealers["cpu"] = GenericFarm<EthashProofOfWork>::SealerDescriptor{&EthashCPUMiner::instances, [](GenericMiner<EthashProofOfWork>::ConstructionInfo ci){ return new EthashCPUMiner(ci); }};
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#if ETH_ETHASHCL
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sealers["opencl"] = GenericFarm<EthashProofOfWork>::SealerDescriptor{&EthashGPUMiner::instances, [](GenericMiner<EthashProofOfWork>::ConstructionInfo ci){ return new EthashGPUMiner(ci); }};
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#endif
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#if ETH_ETHASHCUDA
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sealers["cuda"] = GenericFarm<EthashProofOfWork>::SealerDescriptor{ &EthashCUDAMiner::instances, [](GenericMiner<EthashProofOfWork>::ConstructionInfo ci){ return new EthashCUDAMiner(ci); } };
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#endif
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m_farm.setSealers(sealers);
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}
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strings EthashSealEngine::sealers() const
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{
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return {
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"cpu"
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#if ETH_ETHASHCL
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, "opencl"
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#endif
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#if ETH_ETHASHCUDA
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, "cuda"
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#endif
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};
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}
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void EthashSealEngine::generateSeal(BlockInfo const& _bi)
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{
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m_sealing = Ethash::BlockHeader(_bi);
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m_farm.setWork(m_sealing);
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m_farm.start(m_sealer);
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m_farm.setWork(m_sealing); // TODO: take out one before or one after...
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bytes shouldPrecompute = option("precomputeDAG");
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if (!shouldPrecompute.empty() && shouldPrecompute[0] == 1)
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Ethash::ensurePrecomputed((unsigned)_bi.number());
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}
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void EthashSealEngine::onSealGenerated(std::function<void(bytes const&)> const& _f)
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{
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m_farm.onSolutionFound([=](EthashProofOfWork::Solution const& sol)
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{
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// cdebug << m_farm.work().seedHash << m_farm.work().headerHash << sol.nonce << EthashAux::eval(m_farm.work().seedHash, m_farm.work().headerHash, sol.nonce).value;
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m_sealing.m_mixHash = sol.mixHash;
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m_sealing.m_nonce = sol.nonce;
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if (!m_sealing.preVerify())
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return false;
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RLPStream ret;
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m_sealing.streamRLP(ret);
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_f(ret.out());
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return true;
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});
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}
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