twisted.internet

问题 Below code snippet is the celery setup I have, Here I am running a twisted reactor in each child celery worker process. import os from threading import Thread from celery import Celery from twisted.internet import threads, reactor from celery import signals from twisted.internet.defer import inlineCallbacks, returnValue from twisted.internet.task import LoopingCall app = Celery('tasks', broker='pyamqp://guest@localhost//') @signals.worker_process_init.connect def configure_infrastructure(*

问题 This is an extension of my question here: python twisted: enforcing a single connection per id I'm trying to enforce a singe connection per id. If a new connection comes in with the same id as an existing connection, I try to kill the old one and replace it with the new one. I do that by pausing the new one, killing the old one, then un-pausing the new one. I made the assumption that after pausing the transport on a connection I wouldn't get any further calls to dataReceived() but this doesn

问题 I wish to add more protocols and factories after reactor runs. I couldn't find documentation which says this is allowed. When I make reactor.run before reactor.connectTCP, the program hangs around buildProtocol in factory. Is it possible to add reactor.connectTCP to the reactor after reactor.run? 回答1: Yes, you can start or stop listening on a TCP port at any time in Twisted. However, code like reactor.run() reactor.listenTCP(...) won't work because run() only returns when the reactor has been

问题 I have this twisted client, which connects with a twisted server having an index. I ran this client from command-line. It worked fine. Now I modified it to run in loop (see main() ) so that I can keep querying. But the client runs only once. Next time it simply says connection lost \n Connection lost - goodbye! . What am i doing wrong? In the loop I am reconnecting to the server, it that wrong? from twisted.internet import reactor from twisted.internet import protocol from settings import AS

问题 i am designing an ssl server where i am using twisted for it with ssl and it requires client certificate authentication to continue to the program , when i verify the ssl certificate of the client it returns True but i want to pass the commanname and emailaddress in the client certificate so that i can get settings for that specific client in the handler class, so can you help me ? from OpenSSL import SSL from twisted.internet import ssl, reactor from twisted.internet.protocol import Factory,

问题 so I have a twisted server I built, and I was wondering what is the best way to limit the number of simultaneous connections? Is having my Factory return None the best way? When I do this, I throw a lot of exceptions like: exceptions.AttributeError: 'NoneType' object has no attribute 'makeConnection' I would like someway to have the clients just sit in queue until the current connection number goes back down, but I don't know how to do that asynchronously. Currently I am using my factory do

问题 If I have for example this simple TCP server: from twisted.internet import reactor from twisted.web.resource import Resource from twisted.web.server import Site from resources import SomeResource logging.info("Starting server...") root = Resource() root.putChild("test", SomeResource()) reactor.listenTCP(8080, Site(root)) reactor.run() With SomeResource which has the render_GET and render_POST methods for example. Then I know I can just send a POST/GET to hostname:8080/test But now I want to

问题 Would it be possible to write a twisted-powered application that opens an interactive shell, e.g. to tweak the business objects served via the twisted protocol layer? My current problem is that the reactor.run() blocks the application, and the IPython.embed() is only run after the reactor has finished. 回答1: Unless you specifically need extras that are only in ipython, you really should check out manhole (twistedmatrix example code) It lets you access a python interactive shell that is

问题 I have a twisted server using SSL sockets and using certificates to identify the different clients that connect to the server. I'd like to enforce the state where there is only one connection by each possible id. The two ways I can think of is to keep track of connected ids and then not allow a second connection by the same id or allow the second connection and immediately terminate the first. I'm trying to do the later but am having some issues (I'll explain my choice at the end) I'm storing

问题 In twisted, getProcessOutput method could get 'ps' shell command ouput by using getProcessOutupt('ps', 'aux') and return a defer. my question is how to run command like "ps aux | grep 'some keyword' | awk '{...}'" in getProcessOutput. for example getProcessOutput("ps aux | grep 'some keyword' | awk '{...}'") . any suggestions would be appreciated. 回答1: use getProcessOutput('/bin/sh', ('-c', cmd)) . cmd is your shell command. try it :-) 来源： https://stackoverflow.com/questions/28957258/twisted