/* 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 2016-2017 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 __WORKERS_H__
#define __WORKERS_H__


#include <atomic>
#include <pthread.h>
#include <uv.h>
#include <vector>


#include "net/Job.h"


class Handle;


class Workers
{
public:
    static Job job();
    static void setJob(const Job &job);
    static void start(int threads, int64_t affinity, bool nicehash);
    static void submit();

    static inline bool isOutdated(uint64_t sequence) { return m_sequence.load(std::memory_order_relaxed) != sequence; }
    static inline bool isPaused()                    { return m_paused.load(std::memory_order_relaxed) == 1; }
    static inline uint64_t sequence()                { return m_sequence.load(std::memory_order_relaxed); }
    static inline void pause()                       { m_paused = 1; }

private:
    static void *onReady(void *arg);
    static void onResult(uv_async_t *handle);

    static Job m_job;
    static pthread_rwlock_t m_rwlock;
    static std::atomic<int> m_paused;
    static std::atomic<uint64_t> m_sequence;
    static std::vector<Handle*> m_workers;
    static uv_async_t m_async;
};


#endif /* __WORKERS_H__ */