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monero/src/cryptonote_core/miner.cpp
Riccardo Spagni f4b69d553a
year updated in license
2015-01-02 18:52:46 +02:00

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// Copyright (c) 2014-2015, 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 <boost/foreach.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"
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};
}
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)
{
}
//-----------------------------------------------------------------------------------------------------
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);
}
//-----------------------------------------------------------------------------------------------------
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);
LOG_PRINT_L0("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);
}
}
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)
{
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);
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!" )
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()
{
send_stop_signal();
CRITICAL_REGION_LOCAL(m_threads_lock);
BOOST_FOREACH(boost::thread& th, m_threads)
th.join();
m_threads.clear();
LOG_PRINT_L0("Mining has been stopped, " << m_threads.size() << " finished" );
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);
}
}
//-----------------------------------------------------------------------------------------------------
void miner::pause()
{
CRITICAL_REGION_LOCAL(m_miners_count_lock);
++m_pausers_count;
if(m_pausers_count == 1 && is_mining())
LOG_PRINT_L2("MINING PAUSED");
}
//-----------------------------------------------------------------------------------------------------
void miner::resume()
{
CRITICAL_REGION_LOCAL(m_miners_count_lock);
--m_pausers_count;
if(m_pausers_count < 0)
{
m_pausers_count = 0;
LOG_PRINT_RED_L0("Unexpected miner::resume() called");
}
if(!m_pausers_count && is_mining())
LOG_PRINT_L2("MINING RESUMED");
}
//-----------------------------------------------------------------------------------------------------
bool miner::worker_thread()
{
uint32_t th_local_index = boost::interprocess::ipcdetail::atomic_inc32(&m_thread_index);
LOG_PRINT_L0("Miner thread was started ["<< th_local_index << "]");
log_space::log_singletone::set_thread_log_prefix(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;
}
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;
LOG_PRINT_GREEN("Found block for difficulty: " << local_diff, LOG_LEVEL_0);
if(!m_phandler->handle_block_found(b))
{
--m_config.current_extra_message_index;
}else
{
//success update, lets update config
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();
LOG_PRINT_L0("Miner thread stopped ["<< th_local_index << "]");
return true;
}
//-----------------------------------------------------------------------------------------------------
}
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