def listen_tcp(
bind_addresses: Collection[str],
port: int,
factory: ServerFactory,
reactor: IReactorTCP = reactor,
backlog: int = 50,
) -> List[Port]:
"""
Create a TCP socket for a port and several addresses
Returns:
list of twisted.internet.tcp.Port listening for TCP connections
"""
r = []
for address in bind_addresses:
try:
r.append(reactor.listenTCP(port, factory, backlog, address))
except error.CannotListenError as e:
check_bind_error(e, address, bind_addresses)
# IReactorTCP returns an object implementing IListeningPort from listenTCP,
# but we know it will be a Port instance.
return r # type: ignore[return-value]
from twisted.internet.interfaces import IReactorTCP
from twisted.internet.protocol import Protocol, Factory
class SimpleLogger(Protocol):
def connectionMade(self):
print('got connection from %s' % self.transport.client)
def connectionLost(self, reason):
print('%s disconnected' % self.transport.client)
def dataReceived(self, data):
print(data)
factory = Factory()
factory.protocol = SimpleLogger
IReactorTCP.listenTCP(1234, factory)
IReactorTCP.Run()
