TCP Server and Client

Table of Contents

• TCP Server
• TCP Client
• Combined TCP Server and Client

TCP Server

This sample demonstrates a simple TCP server.

#include <iostream>
#include <RCF/RCF.hpp>

// Define the I_PrintService RCF interface.
RCF_BEGIN(I_PrintService, "I_PrintService")
    RCF_METHOD_V1(void, Print, const std::string &)
RCF_END(I_PrintService)

// Server implementation of the I_PrintService RCF interface.
class PrintService
{
public:
    void Print(const std::string & s)
    {
        std::cout << "I_PrintService service: " << s << std::endl;
    }
};

int main()
{
    try
    {
        // Initialize RCF.
        RCF::RcfInit rcfInit;

        // Instantiate a RCF server.
        RCF::RcfServer server(RCF::TcpEndpoint("127.0.0.1", 50001));

        // Bind the I_PrintService interface.
        PrintService printService;
        server.bind<I_PrintService>(printService);

        // Start the server.
        server.start();

        std::cout << "Press Enter to exit..." << std::endl;
        std::cin.get();
    }
    catch ( const RCF::Exception & e )
    {
        std::cout << "Error: " << e.getErrorMessage() << std::endl;
    }

    return 0;
}

TCP Client

This sample demonstrates a TCP client. It is intended to be run against the TCP server above.

#include <iostream>
#include <RCF/RCF.hpp>

// Define the I_PrintService RCF interface.
RCF_BEGIN(I_PrintService, "I_PrintService")
    RCF_METHOD_V1(void, Print, const std::string &)
RCF_END(I_PrintService)

int main()
{
    try
    {
        // Initialize RCF.
        RCF::RcfInit rcfInit;

        std::cout << "Calling the I_PrintService Print() method." << std::endl;
        
        // Instantiate a RCF client.
        RcfClient<I_PrintService> client(RCF::TcpEndpoint("127.0.0.1", 50001));

        // Connect to the server and call the Print() method.
        client.Print("Hello World");
    }
    catch ( const RCF::Exception & e )
    {
        std::cout << "Error: " << e.getErrorMessage() << std::endl;
    }
    return 0;
}

Combined TCP Server and Client

This sample demonstrates a simple TCP client and server, communicating within a single process.

#include <iostream>
#include <RCF/RCF.hpp>

// Define the I_PrintService RCF interface.
RCF_BEGIN(I_PrintService, "I_PrintService")
    RCF_METHOD_V1(void, Print, const std::string &)
RCF_END(I_PrintService)

// Server implementation of the I_PrintService RCF interface.
class PrintService
{
public:
    void Print(const std::string & s)
    {
        std::cout << "I_PrintService service: " << s << std::endl;
    }
};

int main()
{
    try
    {
        // Initialize RCF.
        RCF::RcfInit rcfInit;

        // Instantiate a RCF server.
        RCF::RcfServer server( RCF::TcpEndpoint("127.0.0.1", 50001) );

        // Bind the I_PrintService interface.
        PrintService printService;
        server.bind<I_PrintService>(printService);
        
        // Start the server.
        server.start();

        std::cout << "Calling the I_PrintService Print() method." << std::endl;

        // Instantiate a RCF client.
        RcfClient<I_PrintService> client( RCF::TcpEndpoint("127.0.0.1", 50001) );

        // Connect to the server and call the Print() method.
        client.Print("Hello World");
    }
    catch ( const RCF::Exception & e )
    {
        std::cout << "Error: " << e.getErrorMessage() << std::endl;
    }
    
    return 0;
}