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diff --git a/src/cryptonote_basic/miner.h b/src/cryptonote_basic/miner.h
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+// Copyright (c) 2014-2016, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
+
+#pragma once 
+
+#include <boost/program_options.hpp>
+#include <atomic>
+#include "cryptonote_basic.h"
+#include "difficulty.h"
+#include "math_helper.h"
+
+
+namespace cryptonote
+{
+
+  struct i_miner_handler
+  {
+    virtual bool handle_block_found(block& b) = 0;
+    virtual bool get_block_template(block& b, const account_public_address& adr, difficulty_type& diffic, uint64_t& height, const blobdata& ex_nonce) = 0;
+  protected:
+    ~i_miner_handler(){};
+  };
+
+  /************************************************************************/
+  /*                                                                      */
+  /************************************************************************/
+  class miner
+  {
+  public: 
+    miner(i_miner_handler* phandler);
+    ~miner();
+    bool init(const boost::program_options::variables_map& vm, bool testnet);
+    static void init_options(boost::program_options::options_description& desc);
+    bool set_block_template(const block& bl, const difficulty_type& diffic, uint64_t height);
+    bool on_block_chain_update();
+    bool start(const account_public_address& adr, size_t threads_count, const boost::thread::attributes& attrs);
+    uint64_t get_speed() const;
+    uint32_t get_threads_count() const;
+    void send_stop_signal();
+    bool stop();
+    bool is_mining() const;
+    const account_public_address& get_mining_address() const;
+    bool on_idle();
+    void on_synchronized();
+    //synchronous analog (for fast calls)
+    static bool find_nonce_for_given_block(block& bl, const difficulty_type& diffic, uint64_t height);
+    void pause();
+    void resume();
+    void do_print_hashrate(bool do_hr);
+
+  private:
+    bool worker_thread();
+    bool request_block_template();
+    void  merge_hr();
+    
+    struct miner_config
+    {
+      uint64_t current_extra_message_index;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE(current_extra_message_index)
+      END_KV_SERIALIZE_MAP()
+    };
+
+
+    volatile uint32_t m_stop;
+    epee::critical_section m_template_lock;
+    block m_template;
+    std::atomic<uint32_t> m_template_no;
+    std::atomic<uint32_t> m_starter_nonce;
+    difficulty_type m_diffic;
+    uint64_t m_height;
+    volatile uint32_t m_thread_index; 
+    volatile uint32_t m_threads_total;
+    std::atomic<int32_t> m_pausers_count;
+    epee::critical_section m_miners_count_lock;
+
+    std::list<boost::thread> m_threads;
+    epee::critical_section m_threads_lock;
+    i_miner_handler* m_phandler;
+    account_public_address m_mine_address;
+    epee::math_helper::once_a_time_seconds<5> m_update_block_template_interval;
+    epee::math_helper::once_a_time_seconds<2> m_update_merge_hr_interval;
+    std::vector<blobdata> m_extra_messages;
+    miner_config m_config;
+    std::string m_config_folder_path;    
+    std::atomic<uint64_t> m_last_hr_merge_time;
+    std::atomic<uint64_t> m_hashes;
+    std::atomic<uint64_t> m_current_hash_rate;
+    epee::critical_section m_last_hash_rates_lock;
+    std::list<uint64_t> m_last_hash_rates;
+    bool m_do_print_hashrate;
+    bool m_do_mining;
+
+  };
+}
+
+
+