progminer zano miner fork https://github.com/hyle-team/progminer

zano/libpoolprotocols/testing/SimulateClient.cpp

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+#include <libdevcore/Log.h>
+#include <chrono>
+
+#include "SimulateClient.h"
+
+using namespace std;
+using namespace std::chrono;
+using namespace dev;
+using namespace eth;
+
+SimulateClient::SimulateClient(unsigned const& block, float const& difficulty)
+  : PoolClient(), Worker("sim"), m_block(block), m_difficulty(difficulty)
+{
+}
+
+SimulateClient::~SimulateClient() = default;
+
+void SimulateClient::connect()
+{
+    // Initialize new session
+    m_connected.store(true, memory_order_relaxed);
+    m_session = unique_ptr<Session>(new Session);
+    m_session->subscribed.store(true, memory_order_relaxed);
+    m_session->authorized.store(true, memory_order_relaxed);
+
+    if (m_onConnected)
+        m_onConnected();
+
+    // No need to worry about starting again.
+    // Worker class prevents that
+    startWorking();
+}
+
+void SimulateClient::disconnect()
+{
+    cnote << "Simulation results : " << EthWhiteBold << "Max "
+          << dev::getFormattedHashes((double)hr_max, ScaleSuffix::Add, 6) << " Mean "
+          << dev::getFormattedHashes((double)hr_mean, ScaleSuffix::Add, 6) << EthReset;
+    
+    m_conn->addDuration(m_session->duration());
+    m_session = nullptr;
+    m_connected.store(false, memory_order_relaxed);
+
+    if (m_onDisconnected)
+        m_onDisconnected();
+}
+
+void SimulateClient::submitHashrate(uint64_t const& rate, string const& id)
+{
+    (void)rate;
+    (void)id;
+}
+
+void SimulateClient::submitSolution(const Solution& solution)
+{
+    // This is a fake submission only evaluated locally
+    std::chrono::steady_clock::time_point submit_start = std::chrono::steady_clock::now();
+    bool accepted =
+        EthashAux::eval(solution.work.epoch, solution.work.block, solution.work.header, solution.nonce).value <=
+        solution.work.boundary;
+    std::chrono::milliseconds response_delay_ms =
+        std::chrono::duration_cast<std::chrono::milliseconds>(
+            std::chrono::steady_clock::now() - submit_start);
+
+    if (accepted)
+    {
+        if (m_onSolutionAccepted)
+            m_onSolutionAccepted(response_delay_ms, solution.midx, false);
+    }
+    else
+    {
+        if (m_onSolutionRejected)
+            m_onSolutionRejected(response_delay_ms, solution.midx);
+    }
+}
+
+// Handles all logic here
+void SimulateClient::workLoop()
+{
+    m_start_time = std::chrono::steady_clock::now();
+
+    // apply exponential sliding average
+    // ref: https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
+
+    WorkPackage current;
+    current.seed = h256::random();  // We don't actually need a real seed as the epoch
+                                    // is calculated upon block number (see poolmanager)
+    current.header = h256::random();
+    current.block = m_block;
+    current.boundary = h256(dev::getTargetFromDiff(m_difficulty));
+    m_onWorkReceived(current);  // submit new fake job
+
+    cnote << "Using block " << m_block << ", difficulty " << m_difficulty;
+
+    while (m_session)
+    {
+        float hr = Farm::f().HashRate();
+        hr_max = std::max(hr_max, hr);
+        hr_mean = hr_alpha * hr_mean + (1.0f - hr_alpha) * hr;
+
+        this_thread::sleep_for(chrono::milliseconds(200));
+    }
+}

zano/libpoolprotocols/testing/SimulateClient.h

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+#pragma once
+
+#include <iostream>
+
+#include <libdevcore/Worker.h>
+#include <libethcore/EthashAux.h>
+#include <libethcore/Farm.h>
+#include <libethcore/Miner.h>
+
+#include "../PoolClient.h"
+
+using namespace std;
+using namespace dev;
+using namespace eth;
+
+class SimulateClient : public PoolClient, Worker
+{
+public:
+    SimulateClient(unsigned const& block, float const& difficulty);
+    ~SimulateClient() override;
+
+    void connect() override;
+    void disconnect() override;
+
+    bool isPendingState() override { return false; }
+    string ActiveEndPoint() override { return ""; };
+
+    void submitHashrate(uint64_t const& rate, string const& id) override;
+    void submitSolution(const Solution& solution) override;
+
+private:
+
+    void workLoop() override;
+    unsigned m_block;
+    float m_difficulty;
+    std::chrono::steady_clock::time_point m_start_time;
+
+    float hr_alpha = 0.45f;
+    float hr_max = 0.0f;
+    float hr_mean = 0.0f;
+};