CODEWITHSUNDEEP
pythonobjecttwisted
Blunt
Blunt

Reputation: 21

Use twisted ,how can I keep the client object

Here is my simple twisted server code:

from twisted.internet.protocol import Protocol,Factory
from twisted.internet import reactor

class MultiEcho(Protocol):
    def __init__(self, factory):
        self.recvBuf = ""
        self.factory = factory

    def connectionMade(self):
        self.factory.echoers.append(self)
        print self.factory.echoers

    def dataReceived(self, data):
        self.recvBuf += data
        self.transport.write(data)

    def connectionLost(self, reason):
        self.factory.echoers.remove(self)

class MultiEchoFactory(Factory):
    def __init__(self):
        self.echoers=[]

    def buildProtocol(self, addr):
        return MultiEcho(self)

if __name__ == '__main__':
    reactor.listenTCP(4321, MultiEchoFactory())
    reactor.run()

Use 'telnet 127.0.0.1 4321' ,will print a list:

[<__main__.MultiEcho instance at 0x0000000002EA6B08>]

add another 'telnet 127.0.0.1 4321',the list is:

[<__main__.MultiEcho instance at 0x0000000002EA6B08>, <__main__.MultiEcho instance at 0x0000000002EA6EC8>]

I know a client is a protocol object's instance ,and the list is MultiEchoFactory.echoers,so I want to keep the list, import them in another .py file use list[n].transport.write(somedata).

I try from myserver import MultiEchoFactory,but the MultiEchoFactory.echoers is empty. I also rewrite the code 

class MultiEchoFactory(Factory):
    def __init__(self):
        self.echoers=[]

to

class MultiEchoFactory(Factory):
    echoers=[]

But I still can't use the protocol list in another .py file. So,what should I do?

Upvotes: 2

Views: 121

Answers (1)

myaut
myaut

Reputation: 11504

You need to save it in buildProtocol(), i.e.:

class MultiEchoFactory(Factory):
    echoers=[]

    def buildProtocol(self, addr):
        echoer = MultiEcho(self)
        MultiEchoFactory.echoers.append(echoer)
        return echoer

Upvotes: 1

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