open_source / socket-cpp

  #include <iostream>
  #include <string>

  #include "socket-cpp/tcp_connector.h"
  #include "socket-cpp/version.h"

  
  using namespace std;
  using namespace std::chrono;
  
  int main(int argc, char* argv[])
  {
  	cout << "Sample TCP echo client for 'sockpp' "

  		<< osdev::components::socket-cpp::SOCKPP_VERSION << '\n' << endl;

  
  	string host = (argc > 1) ? argv[1] : "localhost";
  	in_port_t port = (argc > 2) ? atoi(argv[2]) : 12345;
  

  	osdev::components::socket-cpp::socket_initializer sockInit;

  
  	// Implicitly creates an inet_address from {host,port}
  	// and then tries the connection.
  

  	osdev::components::socket-cpp::tcp_connector conn({host, port});

  	if (!conn) {
  		cerr << "Error connecting to server at "

  			<< osdev::components::socket-cpp::inet_address(host, port)

  			<< "\n\t" << conn.last_error_str() << endl;
  		return 1;
  	}
  
  	cout << "Created a connection from " << conn.address() << endl;
  
      // Set a timeout for the responses
      if (!conn.read_timeout(seconds(5))) {
          cerr << "Error setting timeout on TCP stream: "
                  << conn.last_error_str() << endl;
      }
  
  	string s, sret;
  	while (getline(cin, s) && !s.empty()) {
  		if (conn.write(s) != ssize_t(s.length())) {
  			cerr << "Error writing to the TCP stream: "
  				<< conn.last_error_str() << endl;
  			break;
  		}
  
  		sret.resize(s.length());
  		ssize_t n = conn.read_n(&sret[0], s.length());
  
  		if (n != ssize_t(s.length())) {
  			cerr << "Error reading from TCP stream: "
  				<< conn.last_error_str() << endl;
  			break;
  		}
  
  		cout << sret << endl;
  	}
  
  	return (!conn) ? 1 : 0;
  }