/* XMRig
 * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
 * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
 * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
 * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
 * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
 * Copyright 2017-2019 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
 * Copyright 2018      Lee Clagett <https://github.com/vtnerd>
 * Copyright 2018-2019 tevador     <tevador@gmail.com>
 * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
 * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef XMRIG_RX_CACHE_H
#define XMRIG_RX_CACHE_H


#include <cstdint>


#include "base/tools/Buffer.h"
#include "base/tools/Object.h"
#include "crypto/common/HugePagesInfo.h"
#include "crypto/randomx/configuration.h"


struct randomx_cache;


namespace xmrig
{


class RxCache
{
public:
    XMRIG_DISABLE_COPY_MOVE_DEFAULT(RxCache)

    RxCache(bool hugePages, uint32_t nodeId);
    RxCache(uint8_t *memory);
    ~RxCache();

    inline bool isJIT() const               { return m_jit; }
    inline const Buffer &seed() const       { return m_seed; }
    inline randomx_cache *get() const       { return m_cache; }
    inline size_t size() const              { return maxSize(); }

    bool init(const Buffer &seed);
    HugePagesInfo hugePages() const;

    static inline constexpr size_t maxSize() { return RANDOMX_CACHE_MAX_SIZE; }

private:
    void create(uint8_t *memory);

    bool m_jit              = true;
    Buffer m_seed;
    randomx_cache *m_cache  = nullptr;
    std::shared_ptr<VirtualMemory> m_memory;
};


} /* namespace xmrig */


#endif /* XMRIG_RX_CACHE_H */