SubProtocolFactorySelector.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 WEB_WEBSOCKET_CLIENT_SUBPROTOCOLSELECTOR_H
#define WEB_WEBSOCKET_CLIENT_SUBPROTOCOLSELECTOR_H
 
#include "web/websocket/SubProtocolFactorySelector.h"
 
namespace web::websocket {
    template <typename SubProtocolT>
    class SubProtocolFactory;
 
    namespace client {
        class SubProtocol;
    } // namespace client
} // namespace web::websocket
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include <string>
 
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
namespace web::websocket::client {
 
    class SubProtocolFactorySelector
        : public web::websocket::SubProtocolFactorySelector<web::websocket::SubProtocolFactory<web::websocket::client::SubProtocol>> {
    public:
        SubProtocolFactorySelector(const SubProtocolFactorySelector&) = delete;
 
        SubProtocolFactorySelector& operator=(const SubProtocolFactorySelector&) = delete;
 
    private:
        using Super = web::websocket::SubProtocolFactorySelector<web::websocket::SubProtocolFactory<web::websocket::client::SubProtocol>>;
 
    public:
        static SubProtocolFactorySelector* instance();
 
        ~SubProtocolFactorySelector() override;
 
        static void allowDlOpen();
 
        template <typename SubProtocolFactory>
        static void link(const std::string& subProtocolName, SubProtocolFactory* (*getSubProtocolFactory)()) {
            SubProtocolFactorySelector::instance()->Super::link(subProtocolName, getSubProtocolFactory);
        }
 
    private:
        SubProtocolFactory* load(const std::string& subProtocolName) override;
 
        SubProtocolFactorySelector() = default;
    };
 
} // namespace web::websocket::client
 
extern template class web::websocket::SubProtocolFactorySelector<web::websocket::SubProtocolFactory<web::websocket::client::SubProtocol>>;
 
#endif // WEB_WEBSOCKET_CLIENT_SUBPROTOCOLSELECTOR_H