[Twisted-Python] UDP with multiple connections
Simon Pickles
sipickles at hotmail.com
Thu Oct 11 13:32:46 MDT 2007
My problem is my app needs to be a server to many clients (thru TCP -
twisted.protocols.basic) but a client to a further server, to which it
passes occasional information.
Is this possible through twisted, since I need two threads, one with the
server reactor.run() and one with the client connection listenTCP()?
At present using UDP for the client connection, if I call reactor.run()
after listenUDP(), I get:
Traceback (most recent call last):
File "E:\Dev\Python\Lib\threading.py", line 460, in __bootstrap
self.run()
File "G:\_Dev\Gateway 20071011\gatewayClient.py", line 59, in run
reactor.run()
File "E:\Dev\Python\lib\site-packages\twisted\internet\posixbase.py",
line 219, in run
self.startRunning(installSignalHandlers=installSignalHandlers)
File "E:\Dev\Python\lib\site-packages\twisted\internet\posixbase.py",
line 215, in startRunning
self._handleSignals()
File "E:\Dev\Python\lib\site-packages\twisted\internet\posixbase.py",
line 185, in _handleSignals
signal.signal(signal.SIGTERM, self.sigTerm)
ValueError: signal only works in main thread
If I don't call reactor.run(), it works. I can still send and recieve.
What then, is the role of the reactor? I thought it started the
listening loop?
Thanks
Simon
Jean-Paul Calderone wrote:
> On Thu, 11 Oct 2007 19:24:02 +0100, Simon Pickles
> <sipickles at hotmail.com> wrote:
>> [snip]
>
> Hi,
>
> http://twistedmatrix.com/projects/core/documentation/howto/servers.html
>
> Hope this helps,
>
> Jean-Paul
>
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