tcpecho.cpp
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#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;
}