ControllerThread.h

/*
 * This file is part of LSST M1M3 support system package.
 *
 * Developed for the Vera C. Rubin Telescope and Site System.
 * This product includes software developed by the LSST Project
 * (https://www.lsst.org).
 * See the COPYRIGHT file at the top-level directory of this distribution
 * for details of code ownership.
 *
 * 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 <https://www.gnu.org/licenses/>.
 */
 
#ifndef CONTROLLERTHREAD_H_
#define CONTROLLERTHREAD_H_
 
#include <Command.h>
 
#include <condition_variable>
#include <mutex>
#include <queue>
 
namespace LSST {
namespace M1M3 {
namespace SS {

class ControllerThread {
public:
    ControllerThread();
    ~ControllerThread();

    static ControllerThread &get();
 
    void run();
    void stop();

    void enqueue(Command *command);
 
private:
    ControllerThread &operator=(const ControllerThread &) = delete;
    ControllerThread(const ControllerThread &) = delete;
 
    void _clear();
    void _execute(Command *command);
 
    bool _keepRunning;
    std::mutex _mutex;
    std::queue<Command *> _queue;
    std::condition_variable _cv;
};
 
} /* namespace SS */
} /* namespace M1M3 */
} /* namespace LSST */
 
#endif /* CONTROLLERTHREAD_H_ */