SignalHandler.hpp

Go to the documentation of this file.

/*
 *
 * ---
 *
 *  Copyright (C) 2021 Anselm Schmidt (ans[ät]ohai.su)
 *
 *  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 in addition to the terms of any
 *  licences already herein identified.
 *
 *  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/>.
 *
 * ---
 *
 * SignalHandler.hpp
 *
 * Handles interrupting signals.
 *
 *  Created on: Dec 11, 2021
 *      Author: ans
 */

#ifndef MAIN_SIGNALHANDLER_HPP_
#define MAIN_SIGNALHANDLER_HPP_

#include <csignal>  // sigaction, sigemptyset/signal, SIGINT, SIGTERM, std::sig_atomic_t

namespace crawlservpp::Main {

    class SignalHandler {
    public:

        SignalHandler();

        virtual ~SignalHandler() = default;


    protected:

        void tick();


        static void signal(int signalNumber);

        virtual void shutdown(std::sig_atomic_t signal) = 0;


    private:
        static volatile std::sig_atomic_t interruptionSignal;
    };

} /* namespace crawlservpp::Main */

#endif /* MAIN_SIGNALHANDLER_HPP_ */