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monero/src/cryptonote_basic/miner.cpp
Dion Ahmetaj 69ab14d91e More robust battery status handling. 
Added an extra path to check for linux power supply status.
Added ignore battery option. If set to true, then when we can't figure out
the power status, we'll assume the system is plugged in.
2017-02-16 14:35:01 -05:00

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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
#include <sstream>
#include <numeric>
#include <boost/utility/value_init.hpp>
#include <boost/interprocess/detail/atomic.hpp>
#include <boost/limits.hpp>
#include "misc_language.h"
#include "include_base_utils.h"
#include "cryptonote_basic_impl.h"
#include "cryptonote_format_utils.h"
#include "file_io_utils.h"
#include "common/command_line.h"
#include "string_coding.h"
#include "storages/portable_storage_template_helper.h"
#include "boost/logic/tribool.hpp"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "miner"
using namespace epee;
#include "miner.h"
extern "C" void slow_hash_allocate_state();
extern "C" void slow_hash_free_state();
namespace cryptonote
{
namespace
{
const command_line::arg_descriptor<std::string> arg_extra_messages = {"extra-messages-file", "Specify file for extra messages to include into coinbase transactions", "", true};
const command_line::arg_descriptor<std::string> arg_start_mining = {"start-mining", "Specify wallet address to mining for", "", true};
const command_line::arg_descriptor<uint32_t> arg_mining_threads = {"mining-threads", "Specify mining threads count", 0, true};
const command_line::arg_descriptor<bool> arg_bg_mining_enable = {"bg-mining-enable", "enable/disable background mining", true, true};
const command_line::arg_descriptor<bool> arg_bg_mining_ignore_battery = {"bg-mining-ignore-battery", "if true, assumes plugged in when unable to query system power status", false, true};
const command_line::arg_descriptor<uint64_t> arg_bg_mining_min_idle_interval_seconds = {"bg-mining-min-idle-interval", "Specify min lookback interval in seconds for determining idle state", miner::BACKGROUND_MINING_DEFAULT_MIN_IDLE_INTERVAL_IN_SECONDS, true};
const command_line::arg_descriptor<uint8_t> arg_bg_mining_idle_threshold_percentage = {"bg-mining-idle-threshold", "Specify minimum avg idle percentage over lookback interval", miner::BACKGROUND_MINING_DEFAULT_IDLE_THRESHOLD_PERCENTAGE, true};
const command_line::arg_descriptor<uint8_t> arg_bg_mining_miner_target_percentage = {"bg-mining-miner-target", "Specificy maximum percentage cpu use by miner(s)", miner::BACKGROUND_MINING_DEFAULT_MINING_TARGET_PERCENTAGE, true};
}
miner::miner(i_miner_handler* phandler):m_stop(1),
m_template(boost::value_initialized<block>()),
m_template_no(0),
m_diffic(0),
m_thread_index(0),
m_phandler(phandler),
m_height(0),
m_pausers_count(0),
m_threads_total(0),
m_starter_nonce(0),
m_last_hr_merge_time(0),
m_hashes(0),
m_do_print_hashrate(false),
m_do_mining(false),
m_current_hash_rate(0),
m_is_background_mining_enabled(false),
m_min_idle_seconds(BACKGROUND_MINING_DEFAULT_MIN_IDLE_INTERVAL_IN_SECONDS),
m_idle_threshold(BACKGROUND_MINING_DEFAULT_IDLE_THRESHOLD_PERCENTAGE),
m_mining_target(BACKGROUND_MINING_DEFAULT_MINING_TARGET_PERCENTAGE),
m_miner_extra_sleep(BACKGROUND_MINING_DEFAULT_MINER_EXTRA_SLEEP_MILLIS)
{
}
//-----------------------------------------------------------------------------------------------------
miner::~miner()
{
stop();
}
//-----------------------------------------------------------------------------------------------------
bool miner::set_block_template(const block& bl, const difficulty_type& di, uint64_t height)
{
CRITICAL_REGION_LOCAL(m_template_lock);
m_template = bl;
m_diffic = di;
m_height = height;
++m_template_no;
m_starter_nonce = crypto::rand<uint32_t>();
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::on_block_chain_update()
{
if(!is_mining())
return true;
return request_block_template();
}
//-----------------------------------------------------------------------------------------------------
bool miner::request_block_template()
{
block bl = AUTO_VAL_INIT(bl);
difficulty_type di = AUTO_VAL_INIT(di);
uint64_t height = AUTO_VAL_INIT(height);
cryptonote::blobdata extra_nonce;
if(m_extra_messages.size() && m_config.current_extra_message_index < m_extra_messages.size())
{
extra_nonce = m_extra_messages[m_config.current_extra_message_index];
}
if(!m_phandler->get_block_template(bl, m_mine_address, di, height, extra_nonce))
{
LOG_ERROR("Failed to get_block_template(), stopping mining");
return false;
}
set_block_template(bl, di, height);
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::on_idle()
{
m_update_block_template_interval.do_call([&](){
if(is_mining())request_block_template();
return true;
});
m_update_merge_hr_interval.do_call([&](){
merge_hr();
return true;
});
return true;
}
//-----------------------------------------------------------------------------------------------------
void miner::do_print_hashrate(bool do_hr)
{
m_do_print_hashrate = do_hr;
}
//-----------------------------------------------------------------------------------------------------
void miner::merge_hr()
{
if(m_last_hr_merge_time && is_mining())
{
m_current_hash_rate = m_hashes * 1000 / ((misc_utils::get_tick_count() - m_last_hr_merge_time + 1));
CRITICAL_REGION_LOCAL(m_last_hash_rates_lock);
m_last_hash_rates.push_back(m_current_hash_rate);
if(m_last_hash_rates.size() > 19)
m_last_hash_rates.pop_front();
if(m_do_print_hashrate)
{
uint64_t total_hr = std::accumulate(m_last_hash_rates.begin(), m_last_hash_rates.end(), 0);
float hr = static_cast<float>(total_hr)/static_cast<float>(m_last_hash_rates.size());
std::cout << "hashrate: " << std::setprecision(4) << std::fixed << hr << ENDL;
}
}
m_last_hr_merge_time = misc_utils::get_tick_count();
m_hashes = 0;
}
//-----------------------------------------------------------------------------------------------------
void miner::init_options(boost::program_options::options_description& desc)
{
command_line::add_arg(desc, arg_extra_messages);
command_line::add_arg(desc, arg_start_mining);
command_line::add_arg(desc, arg_mining_threads);
command_line::add_arg(desc, arg_bg_mining_enable);
command_line::add_arg(desc, arg_bg_mining_ignore_battery);
command_line::add_arg(desc, arg_bg_mining_min_idle_interval_seconds);
command_line::add_arg(desc, arg_bg_mining_idle_threshold_percentage);
command_line::add_arg(desc, arg_bg_mining_miner_target_percentage);
}
//-----------------------------------------------------------------------------------------------------
bool miner::init(const boost::program_options::variables_map& vm, bool testnet)
{
if(command_line::has_arg(vm, arg_extra_messages))
{
std::string buff;
bool r = file_io_utils::load_file_to_string(command_line::get_arg(vm, arg_extra_messages), buff);
CHECK_AND_ASSERT_MES(r, false, "Failed to load file with extra messages: " << command_line::get_arg(vm, arg_extra_messages));
std::vector<std::string> extra_vec;
boost::split(extra_vec, buff, boost::is_any_of("\n"), boost::token_compress_on );
m_extra_messages.resize(extra_vec.size());
for(size_t i = 0; i != extra_vec.size(); i++)
{
string_tools::trim(extra_vec[i]);
if(!extra_vec[i].size())
continue;
std::string buff = string_encoding::base64_decode(extra_vec[i]);
if(buff != "0")
m_extra_messages[i] = buff;
}
m_config_folder_path = boost::filesystem::path(command_line::get_arg(vm, arg_extra_messages)).parent_path().string();
m_config = AUTO_VAL_INIT(m_config);
epee::serialization::load_t_from_json_file(m_config, m_config_folder_path + "/" + MINER_CONFIG_FILE_NAME);
MINFO("Loaded " << m_extra_messages.size() << " extra messages, current index " << m_config.current_extra_message_index);
}
if(command_line::has_arg(vm, arg_start_mining))
{
if(!cryptonote::get_account_address_from_str(m_mine_address, testnet, command_line::get_arg(vm, arg_start_mining)))
{
LOG_ERROR("Target account address " << command_line::get_arg(vm, arg_start_mining) << " has wrong format, starting daemon canceled");
return false;
}
m_threads_total = 1;
m_do_mining = true;
if(command_line::has_arg(vm, arg_mining_threads))
{
m_threads_total = command_line::get_arg(vm, arg_mining_threads);
}
}
// Background mining parameters
// Let init set all parameters even if background mining is not enabled, they can start later with params set
if(command_line::has_arg(vm, arg_bg_mining_enable))
set_is_background_mining_enabled( command_line::get_arg(vm, arg_bg_mining_enable) );
if(command_line::has_arg(vm, arg_bg_mining_ignore_battery))
set_ignore_battery( command_line::get_arg(vm, arg_bg_mining_ignore_battery) );
if(command_line::has_arg(vm, arg_bg_mining_min_idle_interval_seconds))
set_min_idle_seconds( command_line::get_arg(vm, arg_bg_mining_min_idle_interval_seconds) );
if(command_line::has_arg(vm, arg_bg_mining_idle_threshold_percentage))
set_idle_threshold( command_line::get_arg(vm, arg_bg_mining_idle_threshold_percentage) );
if(command_line::has_arg(vm, arg_bg_mining_miner_target_percentage))
set_mining_target( command_line::get_arg(vm, arg_bg_mining_miner_target_percentage) );
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::is_mining() const
{
return !m_stop;
}
//-----------------------------------------------------------------------------------------------------
const account_public_address& miner::get_mining_address() const
{
return m_mine_address;
}
//-----------------------------------------------------------------------------------------------------
uint32_t miner::get_threads_count() const {
return m_threads_total;
}
//-----------------------------------------------------------------------------------------------------
bool miner::start(const account_public_address& adr, size_t threads_count, const boost::thread::attributes& attrs, bool do_background, bool ignore_battery)
{
m_mine_address = adr;
m_threads_total = static_cast<uint32_t>(threads_count);
m_starter_nonce = crypto::rand<uint32_t>();
CRITICAL_REGION_LOCAL(m_threads_lock);
if(is_mining())
{
LOG_ERROR("Starting miner but it's already started");
return false;
}
if(!m_threads.empty())
{
LOG_ERROR("Unable to start miner because there are active mining threads");
return false;
}
if(!m_template_no)
request_block_template();//lets update block template
boost::interprocess::ipcdetail::atomic_write32(&m_stop, 0);
boost::interprocess::ipcdetail::atomic_write32(&m_thread_index, 0);
set_is_background_mining_enabled(do_background);
set_ignore_battery(ignore_battery);
for(size_t i = 0; i != threads_count; i++)
{
m_threads.push_back(boost::thread(attrs, boost::bind(&miner::worker_thread, this)));
}
LOG_PRINT_L0("Mining has started with " << threads_count << " threads, good luck!" );
if( get_is_background_mining_enabled() )
{
m_background_mining_thread = boost::thread(attrs, boost::bind(&miner::background_worker_thread, this));
LOG_PRINT_L0("Background mining controller thread started" );
}
return true;
}
//-----------------------------------------------------------------------------------------------------
uint64_t miner::get_speed() const
{
if(is_mining()) {
return m_current_hash_rate;
}
else {
return 0;
}
}
//-----------------------------------------------------------------------------------------------------
void miner::send_stop_signal()
{
boost::interprocess::ipcdetail::atomic_write32(&m_stop, 1);
}
//-----------------------------------------------------------------------------------------------------
bool miner::stop()
{
MTRACE("Miner has received stop signal");
if (!is_mining())
{
MDEBUG("Not mining - nothing to stop" );
return true;
}
send_stop_signal();
CRITICAL_REGION_LOCAL(m_threads_lock);
// In case background mining was active and the miner threads are waiting
// on the background miner to signal start.
m_is_background_mining_started_cond.notify_all();
for(boost::thread& th: m_threads)
th.join();
// The background mining thread could be sleeping for a long time, so we
// interrupt it just in case
m_background_mining_thread.interrupt();
m_background_mining_thread.join();
MINFO("Mining has been stopped, " << m_threads.size() << " finished" );
m_threads.clear();
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::find_nonce_for_given_block(block& bl, const difficulty_type& diffic, uint64_t height)
{
for(; bl.nonce != std::numeric_limits<uint32_t>::max(); bl.nonce++)
{
crypto::hash h;
get_block_longhash(bl, h, height);
if(check_hash(h, diffic))
{
return true;
}
}
return false;
}
//-----------------------------------------------------------------------------------------------------
void miner::on_synchronized()
{
if(m_do_mining)
{
boost::thread::attributes attrs;
attrs.set_stack_size(THREAD_STACK_SIZE);
start(m_mine_address, m_threads_total, attrs, get_is_background_mining_enabled());
}
}
//-----------------------------------------------------------------------------------------------------
void miner::pause()
{
CRITICAL_REGION_LOCAL(m_miners_count_lock);
++m_pausers_count;
if(m_pausers_count == 1 && is_mining())
MDEBUG("MINING PAUSED");
}
//-----------------------------------------------------------------------------------------------------
void miner::resume()
{
CRITICAL_REGION_LOCAL(m_miners_count_lock);
--m_pausers_count;
if(m_pausers_count < 0)
{
m_pausers_count = 0;
MERROR("Unexpected miner::resume() called");
}
if(!m_pausers_count && is_mining())
MDEBUG("MINING RESUMED");
}
//-----------------------------------------------------------------------------------------------------
bool miner::worker_thread()
{
uint32_t th_local_index = boost::interprocess::ipcdetail::atomic_inc32(&m_thread_index);
MGINFO("Miner thread was started ["<< th_local_index << "]");
MLOG_SET_THREAD_NAME(std::string("[miner ") + std::to_string(th_local_index) + "]");
uint32_t nonce = m_starter_nonce + th_local_index;
uint64_t height = 0;
difficulty_type local_diff = 0;
uint32_t local_template_ver = 0;
block b;
slow_hash_allocate_state();
while(!m_stop)
{
if(m_pausers_count)//anti split workaround
{
misc_utils::sleep_no_w(100);
continue;
}
else if( m_is_background_mining_enabled )
{
misc_utils::sleep_no_w(m_miner_extra_sleep);
while( !m_is_background_mining_started )
{
MGINFO("background mining is enabled, but not started, waiting until start triggers");
boost::unique_lock<boost::mutex> started_lock( m_is_background_mining_started_mutex );
m_is_background_mining_started_cond.wait( started_lock );
if( m_stop ) break;
}
if( m_stop ) continue;
}
if(local_template_ver != m_template_no)
{
CRITICAL_REGION_BEGIN(m_template_lock);
b = m_template;
local_diff = m_diffic;
height = m_height;
CRITICAL_REGION_END();
local_template_ver = m_template_no;
nonce = m_starter_nonce + th_local_index;
}
if(!local_template_ver)//no any set_block_template call
{
LOG_PRINT_L2("Block template not set yet");
epee::misc_utils::sleep_no_w(1000);
continue;
}
b.nonce = nonce;
crypto::hash h;
get_block_longhash(b, h, height);
if(check_hash(h, local_diff))
{
//we lucky!
++m_config.current_extra_message_index;
MGINFO_GREEN("Found block for difficulty: " << local_diff);
if(!m_phandler->handle_block_found(b))
{
--m_config.current_extra_message_index;
}else
{
//success update, lets update config
if (!m_config_folder_path.empty())
epee::serialization::store_t_to_json_file(m_config, m_config_folder_path + "/" + MINER_CONFIG_FILE_NAME);
}
}
nonce+=m_threads_total;
++m_hashes;
}
slow_hash_free_state();
MGINFO("Miner thread stopped ["<< th_local_index << "]");
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::get_is_background_mining_enabled() const
{
return m_is_background_mining_enabled;
}
//-----------------------------------------------------------------------------------------------------
bool miner::get_ignore_battery() const
{
return m_ignore_battery;
}
//-----------------------------------------------------------------------------------------------------
/**
* This has differing behaviour depending on if mining has been started/etc.
* Note: add documentation
*/
bool miner::set_is_background_mining_enabled(bool is_background_mining_enabled)
{
m_is_background_mining_enabled = is_background_mining_enabled;
// Extra logic will be required if we make this function public in the future
// and allow toggling smart mining without start/stop
//m_is_background_mining_enabled_cond.notify_one();
return true;
}
//-----------------------------------------------------------------------------------------------------
void miner::set_ignore_battery(bool ignore_battery)
{
m_ignore_battery = ignore_battery;
}
//-----------------------------------------------------------------------------------------------------
uint64_t miner::get_min_idle_seconds() const
{
return m_min_idle_seconds;
}
//-----------------------------------------------------------------------------------------------------
bool miner::set_min_idle_seconds(uint64_t min_idle_seconds)
{
if(min_idle_seconds > BACKGROUND_MINING_MAX_MIN_IDLE_INTERVAL_IN_SECONDS) return false;
if(min_idle_seconds < BACKGROUND_MINING_MIN_MIN_IDLE_INTERVAL_IN_SECONDS) return false;
m_min_idle_seconds = min_idle_seconds;
return true;
}
//-----------------------------------------------------------------------------------------------------
uint8_t miner::get_idle_threshold() const
{
return m_idle_threshold;
}
//-----------------------------------------------------------------------------------------------------
bool miner::set_idle_threshold(uint8_t idle_threshold)
{
if(idle_threshold > BACKGROUND_MINING_MAX_IDLE_THRESHOLD_PERCENTAGE) return false;
if(idle_threshold < BACKGROUND_MINING_MIN_IDLE_THRESHOLD_PERCENTAGE) return false;
m_idle_threshold = idle_threshold;
return true;
}
//-----------------------------------------------------------------------------------------------------
uint8_t miner::get_mining_target() const
{
return m_mining_target;
}
//-----------------------------------------------------------------------------------------------------
bool miner::set_mining_target(uint8_t mining_target)
{
if(mining_target > BACKGROUND_MINING_MAX_MINING_TARGET_PERCENTAGE) return false;
if(mining_target < BACKGROUND_MINING_MIN_MINING_TARGET_PERCENTAGE) return false;
m_mining_target = mining_target;
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::background_worker_thread()
{
uint64_t prev_total_time, current_total_time;
uint64_t prev_idle_time, current_idle_time;
uint64_t previous_process_time = 0, current_process_time = 0;
m_is_background_mining_started = false;
if(!get_system_times(prev_total_time, prev_idle_time))
{
LOG_ERROR("get_system_times call failed, background mining will NOT work!");
return false;
}
while(!m_stop)
{
try
{
// Commenting out the below since we're going with privatizing the bg mining enabled
// function, but I'll leave the code/comments here for anyone that wants to modify the
// patch in the future
// -------------------------------------------------------------------------------------
// All of this might be overkill if we just enforced some simple requirements
// about changing this variable before/after the miner starts, but I envision
// in the future a checkbox that you can tick on/off for background mining after
// you've clicked "start mining". There's still an issue here where if background
// mining is disabled when start is called, this thread is never created, and so
// enabling after does nothing, something I have to fix in the future. However,
// this should take care of the case where mining is started with bg-enabled,
// and then the user decides to un-check background mining, and just do
// regular full-speed mining. I might just be over-doing it and thinking up
// non-existant use-cases, so if the concensus is to simplify, we can remove all this fluff.
/*
while( !m_is_background_mining_enabled )
{
MGINFO("background mining is disabled, waiting until enabled!");
boost::unique_lock<boost::mutex> enabled_lock( m_is_background_mining_enabled_mutex );
m_is_background_mining_enabled_cond.wait( enabled_lock );
}
*/
// If we're already mining, then sleep for the miner monitor interval.
// If we're NOT mining, then sleep for the idle monitor interval
boost::this_thread::sleep_for(
m_is_background_mining_started ?
boost::chrono::seconds( BACKGROUND_MINING_MINER_MONITOR_INVERVAL_IN_SECONDS ) :
boost::chrono::seconds( get_min_idle_seconds() ) );
}
catch(const boost::thread_interrupted&)
{
MDEBUG("background miner thread interrupted ");
continue; // if interrupted because stop called, loop should end ..
}
boost::tribool battery_powered(on_battery_power());
bool on_ac_power = false;
if(indeterminate( battery_powered ))
{
// name could be better, only ignores battery requirement if we failed
// to get the status of the system
if( m_ignore_battery )
{
on_ac_power = true;
}
}
else
{
on_ac_power = !battery_powered;
}
if( m_is_background_mining_started )
{
// figure out if we need to stop, and monitor mining usage
// If we get here, then previous values are initialized.
// Let's get some current data for comparison.
if(!get_system_times(current_total_time, current_idle_time))
{
MERROR("get_system_times call failed");
continue;
}
if(!get_process_time(current_process_time))
{
MERROR("get_process_time call failed!");
continue;
}
uint64_t total_diff = (current_total_time - prev_total_time);
uint64_t idle_diff = (current_idle_time - prev_idle_time);
uint64_t process_diff = (current_process_time - previous_process_time);
uint8_t idle_percentage = get_percent_of_total(idle_diff, total_diff);
uint8_t process_percentage = get_percent_of_total(process_diff, total_diff);
MGINFO("idle percentage is " << unsigned(idle_percentage) << "\%, miner percentage is " << unsigned(process_percentage) << "\%, ac power : " << on_ac_power);
if( idle_percentage + process_percentage < get_idle_threshold() || !on_ac_power )
{
MGINFO("cpu is " << unsigned(idle_percentage) << "% idle, idle threshold is " << unsigned(get_idle_threshold()) << "\%, ac power : " << on_ac_power << ", background mining stopping, thanks for your contribution!");
m_is_background_mining_started = false;
// reset process times
previous_process_time = 0;
current_process_time = 0;
}
else
{
previous_process_time = current_process_time;
// adjust the miner extra sleep variable
int64_t miner_extra_sleep_change = (-1 * (get_mining_target() - process_percentage) );
int64_t new_miner_extra_sleep = m_miner_extra_sleep + miner_extra_sleep_change;
// if you start the miner with few threads on a multicore system, this could
// fall below zero because all the time functions aggregate across all processors.
// I'm just hard limiting to 5 millis min sleep here, other options?
m_miner_extra_sleep = std::max( new_miner_extra_sleep , (int64_t)5 );
MDEBUG("m_miner_extra_sleep " << m_miner_extra_sleep);
}
prev_total_time = current_total_time;
prev_idle_time = current_idle_time;
}
else if( on_ac_power )
{
// figure out if we need to start
if(!get_system_times(current_total_time, current_idle_time))
{
MERROR("get_system_times call failed");
continue;
}
uint64_t total_diff = (current_total_time - prev_total_time);
uint64_t idle_diff = (current_idle_time - prev_idle_time);
uint8_t idle_percentage = get_percent_of_total(idle_diff, total_diff);
MGINFO("idle percentage is " << unsigned(idle_percentage));
if( idle_percentage >= get_idle_threshold() && on_ac_power )
{
MGINFO("cpu is " << unsigned(idle_percentage) << "% idle, idle threshold is " << unsigned(get_idle_threshold()) << "\%, ac power : " << on_ac_power << ", background mining started, good luck!");
m_is_background_mining_started = true;
m_is_background_mining_started_cond.notify_all();
// Wait for a little mining to happen ..
boost::this_thread::sleep_for(boost::chrono::seconds( 1 ));
// Starting data ...
if(!get_process_time(previous_process_time))
{
m_is_background_mining_started = false;
MERROR("get_process_time call failed!");
}
}
prev_total_time = current_total_time;
prev_idle_time = current_idle_time;
}
}
return true;
}
//-----------------------------------------------------------------------------------------------------
bool miner::get_system_times(uint64_t& total_time, uint64_t& idle_time)
{
#ifdef _WIN32
FILETIME idleTime;
FILETIME kernelTime;
FILETIME userTime;
if ( GetSystemTimes( &idleTime, &kernelTime, &userTime ) != -1 )
{
total_time =
( (((uint64_t)(kernelTime.dwHighDateTime)) << 32) | ((uint64_t)kernelTime.dwLowDateTime) )
+ ( (((uint64_t)(userTime.dwHighDateTime)) << 32) | ((uint64_t)userTime.dwLowDateTime) );
idle_time = ( (((uint64_t)(idleTime.dwHighDateTime)) << 32) | ((uint64_t)idleTime.dwLowDateTime) );
return true;
}
#elif defined(__linux__)
const std::string STR_CPU("cpu");
const std::size_t STR_CPU_LEN = STR_CPU.size();
const std::string STAT_FILE_PATH = "/proc/stat";
if( !epee::file_io_utils::is_file_exist(STAT_FILE_PATH) )
{
LOG_ERROR("'" << STAT_FILE_PATH << "' file does not exist");
return false;
}
std::ifstream stat_file_stream(STAT_FILE_PATH);
if( stat_file_stream.fail() )
{
LOG_ERROR("failed to open '" << STAT_FILE_PATH << "'");
return false;
}
std::string line;
std::getline(stat_file_stream, line);
std::istringstream stat_file_iss(line);
stat_file_iss.ignore(65536, ' '); // skip cpu label ...
uint64_t utime, ntime, stime, itime;
if( !(stat_file_iss >> utime && stat_file_iss >> ntime && stat_file_iss >> stime && stat_file_iss >> itime) )
{
LOG_ERROR("failed to read '" << STAT_FILE_PATH << "'");
return false;
}
idle_time = itime;
total_time = utime + ntime + stime + itime;
return true;
#endif
return false; // unsupported systemm..
}
//-----------------------------------------------------------------------------------------------------
bool miner::get_process_time(uint64_t& total_time)
{
#ifdef _WIN32
FILETIME createTime;
FILETIME exitTime;
FILETIME kernelTime;
FILETIME userTime;
if ( GetProcessTimes( GetCurrentProcess(), &createTime, &exitTime, &kernelTime, &userTime ) != -1 )
{
total_time =
( (((uint64_t)(kernelTime.dwHighDateTime)) << 32) | ((uint64_t)kernelTime.dwLowDateTime) )
+ ( (((uint64_t)(userTime.dwHighDateTime)) << 32) | ((uint64_t)userTime.dwLowDateTime) );
return true;
}
#elif defined(__linux__) && defined(_SC_CLK_TCK)
struct tms tms;
if ( times(&tms) != (clock_t)-1 )
{
total_time = tms.tms_utime + tms.tms_stime;
return true;
}
#endif
return false; // unsupported system..
}
//-----------------------------------------------------------------------------------------------------
uint8_t miner::get_percent_of_total(uint64_t other, uint64_t total)
{
return (uint8_t)( ceil( (other * 1.f / total * 1.f) * 100) );
}
//-----------------------------------------------------------------------------------------------------
boost::logic::tribool miner::on_battery_power()
{
#ifdef _WIN32
SYSTEM_POWER_STATUS power_status;
if ( GetSystemPowerStatus( &power_status ) != 0 )
{
return boost::logic::tribool(power_status.ACLineStatus != 1);
}
#elif defined(__linux__)
// i've only tested on UBUNTU, these paths might be different on other systems
// need to figure out a way to make this more flexible
std::string power_supply_path = "";
const std::string POWER_SUPPLY_STATUS_PATHS[] =
{
"/sys/class/power_supply/ACAD/online",
"/sys/class/power_supply/AC/online"
};
for(const std::string& path : POWER_SUPPLY_STATUS_PATHS)
{
if( epee::file_io_utils::is_file_exist(path) )
{
power_supply_path = path;
break;
}
}
if( power_supply_path.empty() )
{
LOG_ERROR("Couldn't find battery/power status file, can't determine if plugged in!");
return boost::logic::tribool(boost::logic::indeterminate);;
}
std::ifstream power_stream(power_supply_path);
if( power_stream.fail() )
{
LOG_ERROR("failed to open '" << power_supply_path << "'");
return boost::logic::tribool(boost::logic::indeterminate);;
}
return boost::logic::tribool( (power_stream.get() != '1') );
#endif
LOG_ERROR("couldn't query power status");
return boost::logic::tribool(boost::logic::indeterminate);
}
}
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