How to avoid Selector.Wait() hanging mainloop?

[Haikarainen]

I decided to learn networking with SFML's networking package, by creating a server for a game i'm working on.

The serverpart is fine atm, and the client is not implemented in the game yet because im writing it in a separate project to debug the server before implementing the code into the game.

To the point: I have a mainloop on the client, wich simply recieves packets from the server throu a selector. But it freezes the mainloop at;
if(this->Selector.Wait()){ HERE IT FREEZES ... codeblabla. .. }

I tried making it without a selector first, then it freezed at Socket.Receive(), i basically just want to recieve packets while updating other code(in this example  updating a sf::RenderWindow).

I am not requesting that you write the code for me, i simply want a push in the right direction.

Code for Server: http://fredrik.haikarainen.se/server.cpp
Code for Client: http://fredrik.haikarainen.se/client.cpp

Thanks in advance, would love to know how to get around this !  

[Laurent]

Sockets are blocking by default, which means that a call to Receive() won't return until the socket receives some data.

You must either receive data in a separate thread, or switch your sockets to non-blocking mode.

[Haikarainen]

I got it, solved with setting blocket to 0 on all sockets (after connecting, wouldnt connect otherwise :S solution?), throwing away the selector and  :

Code: [Select]


sf::Packet p;
sf::Socket::Status status = this->Socket.Receive(p);
switch(status){
case sf::Socket::Disconnected:
std::cout << "Server disconnected.\n";
this->Connected = false;
return false;
break;
case sf::Socket::Error:
std::cout << "Connection error.\n";
this->Connected = false;
return false;
break;
case sf::Socket::NotReady:
break;
case sf::Socket::Done:
std::string ms;
p >> ms;
std::cout << "Server: " << ms << "\n";
break;
}
[/code]

[Haikarainen]

Sockets are blocking by default, which means that a call to Receive() won't return until the socket receives some data.

You must either receive data in a separate thread, or switch your sockets to non-blocking mode.

Thanks for the fast reply got it just as you wrote tho, thanks anyway.

And btw; kudos on your work with SFML, never seen such dedication and awesome code before! Thanks for teaching me basics of game/network-programming

[Laurent]

wouldnt connect otherwise :S solution?

Which version of SFML are you using?

[Haikarainen]

wouldnt connect otherwise :S solution?

Which version of SFML are you using?

2.0