如何使用Twisted守护自定义反应器（txnet）

Question

I'm using txnet in an application to monitor if some servers are up, it has a web interface so the reactor along with listenICMP for ping requests (is the reactor provided in txnet) also listenTCP for the web server. My question is about how to daemonize with twistd. Twisted.internet.application provide according to the api:

TCPServer, TCPClient, UNIXServer, UNIXClient, SSLServer, SSLClient, UDPServer, UDPClient, UNIXDatagramServer, UNIXDatagramClient, MulticastServer

I'm guessing i have to implement my own service, but i cand find a nice example on doing this, best explanation online probably krondo tutorial daemonology but it has no references on change the reactor. Summaring: What is the best choice in order to daemonize something like this?:

import json
from txnet.reactor import reactor
from twisted.web import server, resource
from twisted.internet.protocol import DatagramProtocol

result = {}
class PingProtocol(DatagramProtocol):

    ICMP_ECHOREPLY = 0

    def datagramReceived(self, datagram, address):
        ip, port = address
        result[ip] = True

class WebServer(resource.Resource):

    def __init__(self):
        resource.Resource.__init__(self)
        self.putChild('', self)

    def render_GET(self, request):
        str = json.dumps(result)
        result.clear()
        return str

wserver = WebServer()
reactor.listenTCP(8081, server.Site(wserver))
reactor.listenICMP(0, PingProtocol())
reactor.run()

I know that listenUDP probably do the work here, but this is a simplified version, i really need to listenICMP.

Answer 1

By writing a twistd plugin you can make use of all features twistd provides, including daemonization. Here is an example .