On Thu, Dec 16, 2010 at 2:06 AM, Itamar Turner-Trauring <ita...@itamarst.org > wrote:
> On Wed, 2010-12-15 at 18:07 +0200, Pandelis Theodosiou wrote: > > I'm trying to make a Multicast client. > > > > I've tried the simple script found in: > > http://twistedmatrix.com/documents/10.1.0/core/howto/udp.html#auto3 > > > > While it shows no errors, it doesn't receive any data. How can I check > > what the problem is? > > You didn't do the necessary joinGroup() call, which is in the original > example. > > I made many trials, and one was like this: from twisted.internet.protocol import DatagramProtocol from twisted.internet import reactor from twisted.application.internet import MulticastServer class MulticastClientUDP(DatagramProtocol): def startProtocol(self): self.transport.joinGroup('233.75.215.44') def datagramReceived(self, datagram, address): print "Received:" + repr(datagram) # Trying to receive from 233.75.215.44, on our dynamically allocated port reactor.listenUDP(60044, MulticastClientUDP()) reactor.run() But datagramReceived is never called. Am I doing something wrong? Is there any other method that should be called so I start listening on that group? I've also tried to use listenMulticast instead of listenUDP but then I realized this is if I need more than one application to listen/write to the multicast port and I don't need that. pandelis
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