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

zano/libdevcore/Worker.h

@@ -0,0 +1,79 @@
+/*
+    This file is part of progminer.
+
+    progminer 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.
+
+    progminer 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 progminer.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file Worker.h
+ * @author Gav Wood <i@gavwood.com>
+ * @date 2014
+ */
+
+#pragma once
+
+#include <signal.h>
+#include <atomic>
+#include <cassert>
+#include <string>
+#include <thread>
+
+#include "Guards.h"
+
+extern bool g_exitOnError;
+
+namespace dev
+{
+enum class WorkerState
+{
+    Starting,
+    Started,
+    Stopping,
+    Stopped,
+    Killing
+};
+
+class Worker
+{
+public:
+    Worker(std::string _name) : m_name(std::move(_name)) {}
+
+    Worker(Worker const&) = delete;
+    Worker& operator=(Worker const&) = delete;
+
+    virtual ~Worker();
+
+    /// Starts worker thread; causes startedWorking() to be called.
+    void startWorking();
+
+    /// Triggers worker thread it should stop
+    void triggerStopWorking();
+
+    /// Stop worker thread; causes call to stopWorking() and waits till thread has stopped.
+    void stopWorking();
+
+    /// Whether or not this worker should stop
+    bool shouldStop() const { return m_state != WorkerState::Started; }
+
+    std::string name() { return m_name; }
+
+private:
+    virtual void workLoop() = 0;
+
+    std::string m_name;
+
+    mutable Mutex x_work;                 ///< Lock for the network existence.
+    std::unique_ptr<std::thread> m_work;  ///< The network thread.
+    std::atomic<WorkerState> m_state = {WorkerState::Starting};
+};
+
+}  // namespace dev