Re: [Discuss-gnuradio] "max recursion depth exceeded" error solved and new problem playing sound

[W. David Li]

It turned out I forgot to init the top block. So this problem is gone.
The new problem is I can't make the receiving machine to play a sound. 

The client is sending a sine waveform like this:

class Client2(gr.top_block): 

    def __init__(self, addr, port):

        gr.top_block.__init__(self, 'client2')
        self._locatie    = (addr, port)
        self._clientsock = socket (AF_INET, SOCK_STREAM)
        self._clientsock.connect(self._locatie)

        self._src = gr.sig_source_f(44100, gr.GR_SIN_WAVE, 500, 0.8)
        self._file_sink = gr.file_descriptor_sink(gr.sizeof_float,
self._clientsock.fileno())


    def connect(self):
        try:
            self.connect(self._src, self._file_sink)
        except Exception, e:
            print 'client2 connect failure:',e

    def run_client(self):
        self.run()
        print ' client is running '

    def stop_client(self):
        self.stop()
        self.clientsock.close()
        print ' client is stopped '

if __name__ == '__main__':

    address = sys.argv[1]
    port    = int(sys.argv[2])
    print ' Trying to connect to:', address, port
    c = Client2(address, port)
    c.run_client()

    while True: pass

    #c.stop_client()
    print ' Done sending waveform to server!'

And the server on the receiving machine is receiving like this:


class Server2(gr.top_block):

    def __init__(self):

        gr.top_block.__init__(self, 'server2')
        self._serversock = socket(AF_INET, SOCK_STREAM)
        #serversock.bind has to use "" for other clients not on
        #the same host
        self._serversock.bind(("", 12345))
        self._serversock.listen(1)

        print 'Ready to receive sin-wave file'
        sys.stdout.flush()


    def start_listen(self):


        self._clientsock, self._clientaddr = self._serversock.accept()
        print 'Got client connection', self._clientsock,
self._clientaddr
        sys.stdout.flush()

        try:

            self._filesrc = gr.file_descriptor_source(gr.sizeof_float,
self._clientsock.fileno())
            self._audio_sink = audio.sink(44100)
            self.connect(self._filesrc, self._audio_sink)

        except Exception, e:
            print ' Error in start_listen: ', e

    def run_server(self):
        self.run()
        



if __name__ == '__main__':

    
    s = Server2()
    s.start_listen()
    s.run_server()

 




On Thu, 2008-03-06 at 16:00 -0800, Johnathan Corgan wrote:
> On 3/6/08, W. David Li <address@hidden> wrote:
> 
> >  I got this error when connecting a file_descriptor source to an audio
> >  sink in a top_block. Any ideas what might have gone wrong?
> 
> That error can happen if you try to access a method name of a
> hierarhical block that doesn't exist.  Look for a typo.
>