74 lines
2 KiB
C++
74 lines
2 KiB
C++
/* XMRig
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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_KP_CACHE_H
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#define XMRIG_KP_CACHE_H
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#include "base/tools/Object.h"
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#include <mutex>
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#include <vector>
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namespace xmrig
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{
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class VirtualMemory;
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class KPCache
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{
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public:
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static constexpr size_t l1_cache_size = 16 * 1024;
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static constexpr size_t l1_cache_num_items = l1_cache_size / sizeof(uint32_t);
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static constexpr uint32_t num_dataset_parents = 512;
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XMRIG_DISABLE_COPY_MOVE(KPCache)
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KPCache() = default;
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~KPCache() = default;
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bool init(uint32_t epoch);
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void* data() const;
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size_t size() const { return m_size; }
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uint32_t epoch() const { return m_epoch; }
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const uint32_t* l1_cache() const { return m_DAGCache.data(); }
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static uint64_t cache_size(uint32_t epoch);
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static uint64_t dag_size(uint32_t epoch);
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static void calculate_fast_mod_data(uint32_t divisor, uint32_t &reciprocal, uint32_t &increment, uint32_t& shift);
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static std::mutex s_cacheMutex;
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static KPCache s_cache;
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private:
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std::shared_ptr<VirtualMemory> m_memory;
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size_t m_size = 0;
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uint32_t m_epoch = 0xFFFFFFFFUL;
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std::vector<uint32_t> m_DAGCache;
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};
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} /* namespace xmrig */
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#endif /* XMRIG_KP_CACHE_H */
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