167 lines
4.9 KiB
C++
167 lines
4.9 KiB
C++
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018-2020 SChernykh <https://github.com/SChernykh>
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* Copyright 2016-2020 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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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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#ifndef XMRIG_WORKERJOB_H
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#define XMRIG_WORKERJOB_H
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#include <cstring>
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#include "base/net/stratum/Job.h"
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#include "crypto/common/Nonce.h"
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namespace xmrig {
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template<size_t N>
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class WorkerJob
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{
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public:
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inline const Job ¤tJob() const { return m_jobs[index()]; }
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inline uint32_t *nonce(size_t i = 0) { return reinterpret_cast<uint32_t*>(blob() + (i * currentJob().size()) + nonceOffset()); }
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inline uint64_t sequence() const { return m_sequence; }
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inline uint8_t *blob() { return m_blobs[index()]; }
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inline uint8_t index() const { return m_index; }
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inline void add(const Job &job, uint32_t reserveCount, Nonce::Backend backend)
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{
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m_sequence = Nonce::sequence(backend);
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if (currentJob() == job) {
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return;
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}
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if (index() == 1 && job.index() == 0 && job == m_jobs[0]) {
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m_index = 0;
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return;
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}
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save(job, reserveCount, backend);
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}
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inline bool nextRound(uint32_t rounds, uint32_t roundSize)
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{
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m_rounds[index()]++;
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if ((m_rounds[index()] % rounds) == 0) {
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for (size_t i = 0; i < N; ++i) {
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if (!Nonce::next(index(), nonce(i), rounds * roundSize, nonceMask())) {
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return false;
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}
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}
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}
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else {
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for (size_t i = 0; i < N; ++i) {
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*nonce(i) += roundSize;
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}
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}
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return true;
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}
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private:
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inline int32_t nonceOffset() const { return currentJob().nonceOffset(); }
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inline size_t nonceSize() const { return currentJob().nonceSize(); }
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inline uint64_t nonceMask() const { return m_nonce_mask[index()]; }
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inline void save(const Job &job, uint32_t reserveCount, Nonce::Backend backend)
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{
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m_index = job.index();
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const size_t size = job.size();
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m_jobs[index()] = job;
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m_rounds[index()] = 0;
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m_nonce_mask[index()] = job.isNicehash() ? 0xFFFFFFULL : (nonceSize() == sizeof(uint64_t) ? (-1ull >> (job.extraNonce().size() * 4 + 1)): 0xFFFFFFFFULL);
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m_jobs[index()].setBackend(backend);
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for (size_t i = 0; i < N; ++i) {
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memcpy(m_blobs[index()] + (i * size), job.blob(), size);
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Nonce::next(index(), nonce(i), reserveCount, nonceMask());
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}
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}
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alignas(16) uint8_t m_blobs[2][Job::kMaxBlobSize * N]{};
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Job m_jobs[2];
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uint32_t m_rounds[2] = { 0, 0 };
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uint64_t m_nonce_mask[2];
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uint64_t m_sequence = 0;
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uint8_t m_index = 0;
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};
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template<>
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inline uint32_t *xmrig::WorkerJob<1>::nonce(size_t)
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{
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return reinterpret_cast<uint32_t*>(blob() + nonceOffset());
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}
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template<>
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inline bool xmrig::WorkerJob<1>::nextRound(uint32_t rounds, uint32_t roundSize)
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{
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m_rounds[index()]++;
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uint32_t* n = nonce();
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if ((m_rounds[index()] % rounds) == 0) {
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if (!Nonce::next(index(), n, rounds * roundSize, nonceMask())) {
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return false;
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}
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if (nonceSize() == sizeof(uint64_t)) {
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m_jobs[index()].nonce()[1] = n[1];
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}
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}
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else {
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*n += roundSize;
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}
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return true;
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}
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template<>
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inline void xmrig::WorkerJob<1>::save(const Job &job, uint32_t reserveCount, Nonce::Backend backend)
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{
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m_index = job.index();
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m_jobs[index()] = job;
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m_rounds[index()] = 0;
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m_nonce_mask[index()] = job.isNicehash() ? 0xFFFFFFULL : (nonceSize() == sizeof(uint64_t) ? (-1ull >> (job.extraNonce().size() * 4 + 1)): 0xFFFFFFFFULL);
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m_jobs[index()].setBackend(backend);
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memcpy(blob(), job.blob(), job.size());
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Nonce::next(index(), nonce(), reserveCount, nonceMask());
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}
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} // namespace xmrig
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#endif /* XMRIG_WORKERJOB_H */
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