Messages

1

Network / Re: Starting with Packet and Udp Socket

« on: September 03, 2015, 05:05:03 pm »

This was the error ! It's now working...
I'm so sorry to annoyed you with that as I'm starting in POO !
Thanks.
NB: Is there a way to put the topic on "resolve" or something like that ?

2

Network / Re: Starting with Packet and Udp Socket

« on: September 03, 2015, 07:18:27 am »

I am using any specific port on my computer for sending and receiving as it is client side.
But I use, in my constructor :

mySocket socket(12800);

Then, I am trying to send a packet via the port 12800 of my server :

m_socket.send(sendPacket, m_address, m_port)

Thanks.

3

Network / Re: Starting with Packet and Udp Socket

« on: September 03, 2015, 12:21:57 am »

I disabled my firewall for test, as I did for my anti-virus. But this isn't working.
I also tryed

sf::IpAddress m_address("127.0.0.1");

without more success.
Thanks.

4

Network / Re: Starting with Packet and Udp Socket

« on: September 02, 2015, 11:49:14 pm »

Of course I did !
There is not a single packet exiting my computer. And so it's not for the receiver.

5

Network / Re: Starting with Packet and Udp Socket

« on: September 02, 2015, 11:27:05 pm »

I just receive it simply (on the server) by doing that :

void createSocket(){
    unsigned short bindPort = 12800;
    unsigned short clientPort;
    int ret = 0;
    sf::UdpSocket socket;
    sf::IpAddress clientAddr;
    sf::Packet packet;
    Map mainMap;

    if (socket.bind(bindPort) != sf::Socket::Done){
        if (sf::Socket::Error) std::cout << "An unexpected error happened : Fatal Error !" << std::endl;
        if (sf::Socket::NotReady) std::cout << "The socket is not ready to send/receive data yet !" << std::endl;
    }

    std::cout << "The socket has been build and is ready to listen on port : " << bindPort << std::endl;

    while(1){
        packet.clear();
        socket.receive(packet, clientAddr, clientPort);
        std::cout << "A packet as been receive !" << std::endl;
        std::string header = readFromPacket(packet);
        ret = callFunction(packet, header, clientAddr, clientPort, mainMap, socket);
    }
}

But again, as it is UDP socket, I don't see how the receive method I use on my server could influence the fact that I can't send an UDP packet on the client side.

port 12 800 is open on the server. I didn't open port on the client as I didn't do it with python when i worked with socket (it was working :/ )

Btw, I want to communicate over computer who are not on the same network. But if it was the case, why an address like 82.236 is bad ? It will just take a little more time, isn't it ?


Thanks,
Xavier

6

Network / Re: Starting with Packet and Udp Socket

« on: September 02, 2015, 06:40:44 pm »

Where do you do receiving? You only show sending code.
Also if you use this, sf::Socket::AnyPort, on both server and client, there's no guarantee you will pick the correct port when trying to connect. Use a known socket something like 51234.

On the server side, it is fix to the port 12800.
I'm only showing sending code because as I can't send anything actually, I don't see the point to show receving code. Btw, my question stay, could the failure during sending packet be causes by a not working server ? As it is Udp packet, it couldn't be the case, but just to be sure.

7

Network / Re: Starting with Packet and Udp Socket

« on: September 02, 2015, 12:11:31 am »

I didn't find the solution.
As the server i'm working on is not fully working too, I would like to know if the failed to send the packet could be due to the unability from the server to receive the packet correctly ?
This appears strange to me but as far as I know, Udp is not secure, and then, do not need to know if the packet was receive (and then if the server really exists)
Thanks.

8

Network / [SOLVED] Starting with Packet and Udp Socket

« on: August 30, 2015, 09:29:38 pm »

Hello,

I am starting with SFML and networking. I' am trying to send a simple packet to a server but this does not work.
I know I am still a newbie, so if there is some huge and stupid errors, please take the time to explain me or to redirect me.

Here is my socket object (Udp):

#include <iostream>
#include "SFML/Network.hpp"
#include "decode.hpp"
#include "receive.hpp"

mySocket::mySocket(unsigned short port){
        unsigned short m_port = port;
        std::string m_error = "not error";
        sf::UdpSocket m_socket;
        sf::Packet m_packet;
        sf::IpAddress m_address("82.236.48.119");
}

int mySocket::buildSocket(bool blocking){               // return 0 if everything ok. else, -1
        m_socket.setBlocking(blocking);
        if(m_socket.bind(sf::Socket::AnyPort) != sf::Socket::Done){
                m_error = "Error in function buildSocket : Unable to find a port \n";
                return 0;
        }
        return 1;
}

sf::Packet mySocket::returnPacket(){            // return the packet
        return m_packet;
}

std::string mySocket::error(){
        return m_error;
}

int mySocket::sendPacket(sf::Packet& sendPacket){               // return 0 if there was an error. else, 1

        if(m_socket.send(sendPacket, m_address, m_port) != sf::Socket::Done){
                m_error = "Error in function sendPacket : Unable to send th packet";
                return 0;
        }
        m_error = "It's working !";
        return 1;
}

 

Here is my function :

void sendMessages(){
    mySocket socket(12800);
    sf::Packet packet;
    socket.buildSocket(false);

    std::string myString = "connection";
    while(1){
        Sleep(2000);
        packet << myString;
        std::string erreur = socket.error();
        std::cout << erreur << std::endl;
        socket.sendPacket(packet);
    }
}

Expected output :

It's working !

Actual output :

Error in function sendPacket : Unable to send th packet

Thanks,
Xavier