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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file Miner.cpp
* @author Alex Leverington <nessence@gmail.com>
* @author Gav Wood <i@gavwood.com>
* @date 2014
*/
#include "Miner.h"
#include "State.h"
using namespace std;
using namespace dev;
using namespace dev::eth;
Miner::Miner(MinerHost* _host, unsigned _id):
m_host(_host),
m_id(_id)
{
}
void Miner::start()
{
if (!m_host)
return;
Guard l(x_work);
if (!m_work)
{
m_stop = false;
m_work.reset(new thread([&]()
{
setThreadName(("miner-" + toString(m_id)).c_str());
m_miningStatus = Preparing;
while (!m_stop)
work();
}));
}
}
void Miner::stop()
{
Guard l(x_work);
if (m_work)
{
m_stop = true;
m_work->join();
m_work.reset(nullptr);
}
}
void Miner::work()
{
// Do some mining.
if ((m_pendingCount || m_host->force()) && m_miningStatus != Mined)
{
if (m_miningStatus == Preparing)
{
m_miningStatus = Mining;
m_host->setupState(m_mineState);
m_pendingCount = m_mineState.pending().size();
{
Guard l(x_mineInfo);
m_mineProgress.best = (double)-1;
m_mineProgress.hashes = 0;
m_mineProgress.ms = 0;
}
}
// Mine for a while.
MineInfo mineInfo = m_mineState.mine(100, m_host->turbo());
{
Guard l(x_mineInfo);
m_mineProgress.best = min(m_mineProgress.best, mineInfo.best);
m_mineProgress.current = mineInfo.best;
m_mineProgress.requirement = mineInfo.requirement;
m_mineProgress.ms += 100;
m_mineProgress.hashes += mineInfo.hashes;
m_mineHistory.push_back(mineInfo);
}
if (mineInfo.completed)
{
m_mineState.completeMine();
m_host->onComplete();
m_miningStatus = Mined;
}
else
m_host->onProgressed();
}
else
{
this_thread::sleep_for(chrono::milliseconds(100));
}
}