Hi, Im kind of new to this and I have a problem...
Im using asynchronous non-blocking sockets on my Gnutella, and just after I make a successfull connection, I send a ping, receive pongs, and then the socket disconnects. Im using plain send() and recv() calls and a main poll cycle which constantly checks for incoming packets. Im not sure if the problem is that Im getting out of sync or that I should send pings more often to keep the connection alive. Im also getting lots of query, pongs, pings, etc which I (guess) successfully broadcast. Just after that, the socket resets the connection.

eg. a poll tells me I have incoming data to handle, and then my receive function receives 0 bytes. Why's that?

Thanks

please someone!!! im almost on deadline for this project...

What client are you connecting to and what protocol version are you using?

those two things does not mach to each other.

thanks, maybe Im a bit confused about how are asynchronous sockets implemented. I've read everything I've found about gnutella, and I really cant figure out how this is actually done. So I decided to do it my way...dunno if what Im doing has a name.
Sorry about reinventing the wheel, I really have to.
So is what Im doing fully wrong, Im headin the wrong way?

tshdos:
Im using 0.4 handshaking, and Im connecting to a localhost with mutella, which parses me a bunch of pongs (from internet) to which I connect (so I dont know what clients Im connecting to)..

Im really afraid bout having to start my gnutella over again and make things right this time..
so, please could somebody give me a clear explanation of how asynchronous sockets work? pleezzzzzz

You really should use 0.6 handshaking. Its not much more difficult and everyone else is using it.

See
http://cvs.sourceforge.net/cgi-bin/v...ella/Draft.txt
Click the first "(view)"

I don't have a good answear to your question. I suppose you do aswear any pings you receive?

/Tor

Here you can find s.th. about network programming. Maybe this will help you.
http://www.ecst.csuchico.edu/~beej/guide/net/html/

thanx guys!
yes, Im answering pings and Im currently workin to see whether my pongs are OK