Added algo performance calibration (benchmarking) functionality

src/workers/Benchmark.h

@@ -0,0 +1,51 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2016-2018 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright 2018 MoneroOcean      <https://github.com/MoneroOcean>, <support@moneroocean.stream>
+ *
+ *   This program 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.
+ *
+ *   This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+#include "common/xmrig.h"
+#include "interfaces/IJobResultListener.h"
+#include "core/Controller.h"
+
+class Benchmark : public IJobResultListener {
+    const uint64_t m_bench_secs = 5; // time in seconds to benchmark each perf algo
+    bool m_is_benchmark_time; // true is we benchmark some perf algo now
+    xmrig::PerfAlgo m_pa;  // current perf algo we benchmark
+    uint64_t m_hash_count; // number of hashes calculated for current perf algo
+    uint64_t m_time_start; // time of measurements start for current perf algo (in ms)
+    xmrig::Controller* m_controller; // to get access to config and network
+
+    uint64_t get_now() const; // get current time in ms
+
+    void onJobResult(const JobResult&) override; // onJobResult is called after each computed benchmark hash
+
+    public:
+        Benchmark() : m_is_benchmark_time(false) {}
+        virtual ~Benchmark() {}
+
+        void set_controller(xmrig::Controller* controller) { m_controller = controller; }
+        void start_perf_bench(const xmrig::PerfAlgo); // start benchmark for specified perf algo
+};