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/** @file
* \brief Fichero de implementación de un cliente
* \author Imanol Barba Sabariego
* \date 13/06/2013
*
* En este fichero se implementa un cliente para poder usar con el servidor creado, usando la clase Socket.
*/
#include "Socket.h"
#include <iostream>
#include "SocketException.h"
#include <sstream>
#include <signal.h>
#include <cstdlib>
#include <sys/time.h>
using namespace std;
bool connected, finished;
//! Método para terminar el cliente
/*! Este método se usa para terminar el cliente immediatamente en el caso que el servidor cierre la conexión de forma inesperada, capturando
el signal SIGPIPE. */
void exitClient(int signal/*!<Parámetro que captura el signal recibido*/)
{
cout << "Server connection terminated unexpectedly" << endl << "Exiting" << endl;
exit(-1);
}
bool connect(Socket& s)
{
string host;
int port;
cout << "Hostname: ";
cin >> host;
cout << "Port: ";
cin >> port;
cin.ignore();
try
{
s.Connect(host,port);
cout << "Connected" << endl;
connected = true;
}
catch(SocketException& e)
{
cout << e.description() << endl;
}
}
void speedTest(Socket& s)
{
string data = "", answer;
double size;
double start, duration;
cout << "Size in MB: ";
cin >> size;
cin.ignore();
for(long int i = 0; i < size*1e6; i++ )
{
data += (char)( 65 + i % 26);
}
cout << "Data generated, commencing transfer" << endl;
struct timeval st, ed;
gettimeofday(&st, NULL);
s << data;
cout << "Data sent" << endl;
s >> answer;
gettimeofday(&ed, NULL);
start = (st.tv_sec) + (st.tv_usec) / 1e6;
duration = ((ed.tv_sec) + (ed.tv_usec) / 1e6) - start;
if(answer == "ACK")
{
cout << "Transferred " << size << " MB in " << duration << " seconds" << endl;
cout << "Data rate: " << size/duration << " MB/s" << endl;
}
}
//! Método principal del cliente
/*! Este método inicializa el Socket, establece la conexión y realiza las acciones que se le hayan programado para comunicarse con el servidor.*/
int main()
{
signal(SIGPIPE, exitClient);
signal(SIGINT, exitClient);
Socket s;
connected = finished = false;
string send, recv;
s.Create();
while (!exit)
{
connect(s);
while(connected)
{
cout << "> ";
getline(cin,send);
if(cin.eof())
{
send = "/disconnect";
}
try
{
s << send;
if(send == "/disconnect")
{
s >> recv;
if(recv == "OK")
{
cout << "Disconnecting" << endl;
s.Close();
connected = false;
}
}
else if(send == "/exit")
{
s >> recv;
if(recv == "OK")
{
cout << "Exiting" << endl;
s.Close();
connected = false;
finished = true;
}
}
else if(send == "/test")
{
speedTest(s);
}
else
{
s >> recv;
cout << "Received: " << recv << endl;
}
}
catch(SocketException& e)
{
cout << e.description() << endl;
cout << "Exiting" << endl;
s.Close();
return -1;
}
}
}
}
/* TO-DO
*
* spawn 2 IO threads
* connect/disconnect commands
* list nicks
* unicast message
*/
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