EchoSocketContext.cpp

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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/>.
 */
 
#include "EchoSocketContext.h"
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#include "log/Logger.h"
 
#include <string>
 
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
namespace apps::echo::model {
 
    EchoSocketContext::EchoSocketContext(core::socket::stream::SocketConnection* socketConnection, Role role)
        : core::socket::stream::SocketContext(socketConnection)
        , role(role) {
    }
 
    void EchoSocketContext::onConnected() {
        VLOG(1) << "Echo connected";
 
        if (role == Role::CLIENT) {
            sendToPeer("Hello peer! Nice to see you!!!");
        }
    }
 
    void EchoSocketContext::onDisconnected() {
        VLOG(1) << "Echo disconnected";
    }
 
    bool EchoSocketContext::onSignal([[maybe_unused]] int signum) {
        return true;
    }
 
    std::size_t EchoSocketContext::onReceivedFromPeer() {
        char chunk[4096];
 
        const std::size_t chunklen = readFromPeer(chunk, 4096);
 
        if (chunklen > 0) {
            VLOG(1) << "Data to reflect: " << std::string(chunk, chunklen);
            sendToPeer(chunk, chunklen);
        }
 
        return chunklen;
    }
 
    core::socket::stream::SocketContext* EchoServerSocketContextFactory::create(core::socket::stream::SocketConnection* socketConnection) {
        return new EchoSocketContext(socketConnection, EchoSocketContext::Role::SERVER);
    }
 
    core::socket::stream::SocketContext* EchoClientSocketContextFactory::create(core::socket::stream::SocketConnection* socketConnection) {
        return new EchoSocketContext(socketConnection, EchoSocketContext::Role::CLIENT);
    }
 
} // namespace apps::echo::model