client.h

// Copyright 2023 The SOLA authors
//
// This file is part of DAISI.
//
// DAISI 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; version 2.
//
// DAISI 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 DAISI. If not, see
// <https://www.gnu.org/licenses/>.
//
// SPDX-License-Identifier: GPL-2.0-only
 
#ifndef DAISI_NETWORK_TCP_CLIENT_H_
#define DAISI_NETWORK_TCP_CLIENT_H_
 
#include <cstdint>
#include <functional>
#include <memory>
#include <string>
 
#include "network_tcp/definitions.h"
#include "network_tcp/framing_manager.h"
#include "ns3/socket.h"
 
namespace daisi::network_tcp {
 
struct ClientCallbacks {
  std::function<void(const std::string &msg)> new_msg_cb;
  std::function<void()> connected_cb;
  std::function<void()> disconnected_cb;
};
 
class Client {
public:
  Client(ClientCallbacks callbacks, const Endpoint &endpoint);
 
  Client(const Ipv4 &own_ip, ClientCallbacks callbacks, const Endpoint &endpoint);
 
  ~Client();
 
  // Forbid copy/move operations
  Client(const Client &) = delete;
  Client &operator=(const Client &) = delete;
  Client(const Client &&) = delete;
  Client &operator=(Client &&) = delete;
 
  void send(const std::string &msg);
 
  uint16_t getPort() const;
 
  Ipv4 getIP() const;
 
  bool isConnected() const;
 
private:
  void readFromSocket(ns3::Ptr<ns3::Socket> socket);
  void processPacket(ns3::Ptr<ns3::Packet> packet);
 
  void closedSocket(ns3::Ptr<ns3::Socket>);
  void connectedSuccessful(ns3::Ptr<ns3::Socket>);
  void connectionFailed(ns3::Ptr<ns3::Socket>);
 
  ns3::Ptr<ns3::Socket> socket_;
 
  bool connected_ = false;
 
  FramingManager manager_;
 
  Ipv4 ip_;
  uint16_t port_;
 
  const ClientCallbacks callbacks_;
};
}  // namespace daisi::network_tcp
 
#endif  // DAISI_NETWORK_TCP_CLIENT_H_