// Copyright (c) 2014-2022, 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 <boost/logic/tribool_fwd.hpp>
#include <atomic>
#include "cryptonote_basic.h"
#include "verification_context.h"
#include "difficulty.h"
#include "math_helper.h"
#ifdef _WIN32
#include <windows.h>
#endif
namespace cryptonote
{
struct i_miner_handler
{
virtual bool handle_block_found(block& b, block_verification_context &bvc) = 0;
virtual bool get_block_template(block& b, const account_public_address& adr, difficulty_type& diffic, uint64_t& height, uint64_t& expected_reward, const blobdata& ex_nonce, uint64_t &seed_height, crypto::hash &seed_hash) = 0;
protected:
~i_miner_handler(){};
};
typedef std::function<bool(const cryptonote::block&, uint64_t, const crypto::hash*, unsigned int, crypto::hash&)> get_block_hash_t;
/************************************************************************/
/* */
/************************************************************************/
class miner
{
public:
miner(i_miner_handler* phandler, const get_block_hash_t& gbh);
~miner();
bool init(const boost::program_options::variables_map& vm, network_type nettype);
static void init_options(boost::program_options::options_description& desc);
bool set_block_template(const block& bl, const difficulty_type& diffic, uint64_t height, uint64_t block_reward);
bool on_block_chain_update();
bool start(const account_public_address& adr, size_t threads_count, bool do_background = false, bool ignore_battery = false);
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(const get_block_hash_t &gbh, block& bl, const difficulty_type& diffic, uint64_t height, const crypto::hash *seed_hash = NULL);
void pause();
void resume();
void do_print_hashrate(bool do_hr);
bool get_is_background_mining_enabled() const;
bool get_ignore_battery() const;
uint64_t get_min_idle_seconds() const;
bool set_min_idle_seconds(uint64_t min_idle_seconds);
uint8_t get_idle_threshold() const;
bool set_idle_threshold(uint8_t idle_threshold);
uint8_t get_mining_target() const;
bool set_mining_target(uint8_t mining_target);
uint64_t get_block_reward() const { return m_block_reward; }
static constexpr uint8_t BACKGROUND_MINING_DEFAULT_IDLE_THRESHOLD_PERCENTAGE = 90;
static constexpr uint8_t BACKGROUND_MINING_MIN_IDLE_THRESHOLD_PERCENTAGE = 0;
static constexpr uint8_t BACKGROUND_MINING_MAX_IDLE_THRESHOLD_PERCENTAGE = 99;
static constexpr uint16_t BACKGROUND_MINING_DEFAULT_MIN_IDLE_INTERVAL_IN_SECONDS = 10;
static constexpr uint16_t BACKGROUND_MINING_MIN_MIN_IDLE_INTERVAL_IN_SECONDS = 10;
static constexpr uint16_t BACKGROUND_MINING_MAX_MIN_IDLE_INTERVAL_IN_SECONDS = 3600;
static constexpr uint8_t BACKGROUND_MINING_DEFAULT_MINING_TARGET_PERCENTAGE = 40;
static constexpr uint8_t BACKGROUND_MINING_MIN_MINING_TARGET_PERCENTAGE = 1;
static constexpr uint8_t BACKGROUND_MINING_MAX_MINING_TARGET_PERCENTAGE = 100;
static constexpr uint8_t BACKGROUND_MINING_MINER_MONITOR_INVERVAL_IN_SECONDS = 10;
static constexpr uint64_t BACKGROUND_MINING_DEFAULT_MINER_EXTRA_SLEEP_MILLIS = 400; // ramp up
private:
bool worker_thread();
bool request_block_template();
void merge_hr();
void update_autodetection();
struct miner_config
{
uint64_t current_extra_message_index;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(current_extra_message_index)
END_KV_SERIALIZE_MAP()
};
std::atomic<bool> 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;
std::atomic<uint32_t> m_thread_index;
volatile uint32_t m_threads_total;
std::atomic<uint32_t> m_threads_active;
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;
get_block_hash_t m_gbh;
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;
epee::math_helper::once_a_time_seconds<1> m_autodetect_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_total_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;
std::vector<std::pair<uint64_t, uint64_t>> m_threads_autodetect;
boost::thread::attributes m_attrs;
// background mining stuffs ..
bool set_is_background_mining_enabled(bool is_background_mining_enabled);
void set_ignore_battery(bool ignore_battery);
bool background_worker_thread();
std::atomic<bool> m_is_background_mining_enabled;
bool m_ignore_battery;
boost::mutex m_is_background_mining_enabled_mutex;
boost::condition_variable m_is_background_mining_enabled_cond;
std::atomic<bool> m_is_background_mining_started;
boost::mutex m_is_background_mining_started_mutex;
boost::condition_variable m_is_background_mining_started_cond;
boost::thread m_background_mining_thread;
uint64_t m_min_idle_seconds;
uint8_t m_idle_threshold;
uint8_t m_mining_target;
std::atomic<uint64_t> m_miner_extra_sleep;
static bool get_system_times(uint64_t& total_time, uint64_t& idle_time);
static bool get_process_time(uint64_t& total_time);
static uint8_t get_percent_of_total(uint64_t some_time, uint64_t total_time);
static boost::logic::tribool on_battery_power();
std::atomic<uint64_t> m_block_reward;
};
}
