State.h

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/*
 * SNode.C - a slim toolkit for network communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef CORE_SOCKET_STATE_H
#define CORE_SOCKET_STATE_H
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <string>
 
#endif // DOXYGEN_SHOULD_SKIP_THIS
 
namespace core::socket {
 
    class State {
    public:
        constexpr static int OK = 0;
        constexpr static int DISABLED = 1;
        constexpr static int ERROR = 2;
        constexpr static int FATAL = 3;
        constexpr static int NO_RETRY = 4;
 
#ifdef SNODEC_INTREE_BUILD
#define STATE_OK State(core::socket::State::OK, __FILE__, __LINE__)
#define STATE_DISABLED State(core::socket::State::DISABLED, __FILE__, __LINE__)
#define STATE_ERROR State(core::socket::State::ERROR, __FILE__, __LINE__)
#define STATE_FATAL State(core::socket::State::FATAL, __FILE__, __LINE__)
 
#define STATE(state, errnum, errstr) State((state), __FILE__, __LINE__, (errnum), (errstr))
#endif
 
        State(const int& state, const std::string& file, const int& line);
        State(const int& state, const std::string& file, const int& line, int errnum, const std::string& errstr);
 
        operator int() const;
 
        bool operator==(const int& state) const;
        State& operator=(int state);
 
        State& operator|=(int state);
        State& operator&=(int state);
        State& operator^=(int state);
 
        State operator|(int state);
        State operator&(int state);
        State operator^(int state);
 
        std::string what() const;
        std::string where() const;
 
    private:
        int state;
        std::string file;
        int line = 0;
 
        int errnum;
        std::string errstr;
    };
 
} // namespace core::socket
 
#endif // CORE_SOCKET_STATE_H