Include

Use

To use TTP2 in your project you need to include it in first.
After including TTP2 to your project you can start to program the server.

1. Create a server tcp socket is set non blocking (SOCK_NONBLOCK):

   sockaddr_in serverAddress;
   serverAddress.sin_family = AF_INET;
   serverAddress.sin_port = htons(PORT);
   serverAddress.sin_addr.s_addr = inet_addr(IP);
   
   int serverSocket = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
   if(bind(serverSocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress)) < 0) {
      std::wcout << "Bind failed!" << std::endl;
      return -1;
   }

2. TTP2 operates internally using epoll; therefore, client accepts should also be handled with epoll.
3. Now you can create an instance of the ServerSessionController

   auto serverSessionController = std::make_shared<ServerSessionController>(serverSocket, clientSocket);

4. Create a networkingSession thread

   std::thread networkingSession([serverSessionController]() {
     serverSessionController->networkingSession();
   });

5. Take a look at the full implementation here

Done! It is almost the same with the client:

1. Create a client tcp socket like such:

   int serverSocket = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
   
    sockaddr_in serverAddress;
    serverAddress.sin_family = AF_INET;
    serverAddress.sin_port = htons(PORT);
    serverAddress.sin_addr.s_addr = inet_addr(IP);
   
    int connectionResult = connect(serverSocket, (struct sockaddr*) &serverAddress, sizeof(serverAddress));
    
    if (connectionResult < 0 && errno != EINPROGRESS) {
        std::wcout << "Connection failed!" << std::endl;
        return -1;
    }

2. Create an instance of the ClientSessionController

   auto clientSessionController = std::make_shared<ClientSessionController>(serverSocket);

3. Create a networkingSession thread

   std::thread networkThread([clientSessionController]() {
     clientSessionController->networkingSession();
   });

4. Take a look at the full implementation here

Now you can enjoy TTP2 with the functions provided below:

1. Common:

   • void networkingSession();

   • bool isConnected()

   • void disconnect()

   • bool hasRequest()

   • bool hasResponse()

   • Packet popRequest()

   • Packet popResponse()

   • int getRequestQueueSize()

   • int getResponseQueueSize()

   • void pushResponse(Packet)

   • void pushRequest(Packet request)

   • int sendMessage(int socket, int id, int method, std::string payload)

   • int sendPacket(int socket, Packet packet)

   • Packet receiveMessage(int socket)

   • Packet

     struct Packet {
        int id;
        int method;
        std::string payload;  
     };

2. ClientSessionController specific:

   • ClientSessionController();
   • ClientSessionController(int &socket);

3. ServerSessionController specific:

   • ServerSessionController();
   • ServerSessionController(int serverSocket, int clientSocket);
   • std::string getLocalIpAddress(std::string interface);

Test

To test the TTP2 protocol you need to start the server first using:

nix run .#server

After that you can start the client with:

nix run .#client