Question

我已经编写了一个基于Twisted的服务器，我也想使用twisted来测试它。

但是我想写一个负载测试同时启动一堆请求。

但是我相信我没有得到Twisted的概念，主要是客户端，因为我遇到了这个问题：

    from twisted.internet import reactor, protocol
from threading import Thread
from twisted.protocols.basic import LineReceiver

__author__="smota"
__date__ ="$30/10/2009 17:17:50$"

class SquitterClient(LineReceiver):

    def connectionMade(self):
        self.sendLine("message from " % threading.current_thread().name);
        pass

    def connectionLost(self, reason):
        print "connection lost"

    def sendMessage(self, msg):
        for m in [ "a", "b", "c", "d", "e"]:
            self.sendLine(msg % " - " % m);

class SquitterClientFactory(protocol.ClientFactory):
    protocol = SquitterClient

    def clientConnectionFailed(self, connector, reason):
        print "Connection failed - goodbye!"
        reactor.stop()

    def clientConnectionLost(self, connector, reason):
        print "Connection lost - goodbye!"
        reactor.stop()

def createAndRun():
    f = SquitterClientFactory()
    reactor.connectTCP("localhost", 4010, f)
    reactor.run(installSignalHandlers=0)

# this connects the protocol to a server runing on port 8000
def main():
    for n in range(0,10):
        th=Thread(target=createAndRun)
        th.start()

# this only runs if the module was *not* imported
if __name__ == '__main__':
    main()

socket_client.py:35：   弃用警告：反应堆已经   跑！不推荐使用此行为   自Twisted 8.0
  reactor.run（installSignalHandlers = 0）

我错过了什么？

如何测试？

谢谢，

塞缪尔

Answer 1

您失败的直接原因是您尝试多次调用reactor上的run（）。你应该只调用一次run（）。我想你期望有多个反应堆，每个都在自己的线程中，但实际上你只有一个。不好的是，拥有多个反应堆是困难的或不可能的 - 好处是它也是不必要的。实际上你甚至不需要多个线程。您可以在一个反应堆中多路复用多个客户端连接，就像监听多个连接一样容易。

修改示例代码，类似以下内容应该有效。关键的想法是你不需要多个反应堆来同时做事。唯一可能与常规Python实现并发的是I / O.

from twisted.internet import reactor, protocol
from twisted.protocols.basic import LineReceiver

__author__="smota"
__date__ ="$30/10/2009 17:17:50$"

class SquitterClient(LineReceiver):
    def connectionMade(self):
        self.messageCount = 0
        # The factory provides a reference to itself, we'll use it to enumerate the clients
        self.factory.n += 1
        self.name = "Client %d" %self.factory.n

        # Send initial message, and more messages a bit later
        self.sendLine("Client %s starting!" % self.name);
        reactor.callLater(0.5, self.sendMessage, "Message %d" %self.messageCount)

    def connectionLost(self, reason):
        print "connection lost"

    def sendMessage(self, msg):
        for m in [ "a", "b", "c", "d", "e"]:
            self.sendLine("Copy %s of message %s from client %s!" % (m, msg, self.name))
        if self.factory.stop:
            self.sendLine("Client %s disconnecting!" % self.name)
            self.transport.loseConnection()
        else:
            self.messageCount += 1
            reactor.callLater(0.5, self.sendMessage, "Message %d" %self.messageCount)

class SquitterClientFactory(protocol.ClientFactory):
    protocol = SquitterClient

    def __init__(self):
        self.n = 0
        self.stop = False

    def stopTest():
        self.stop = True

    def clientConnectionFailed(self, connector, reason):
        print "Connection failed - goodbye!"

    def clientConnectionLost(self, connector, reason):
        print "Connection lost - goodbye!"

# this connects the protocol to a server running on port 8000
def main():
    # Create 10 clients

    f = SquitterClientFactory()
    for i in range(10):
        reactor.connectTCP("localhost", 8000, f)

    # Schedule end of test in 10 seconds
    reactor.callLater(10, f.stopTest)

    # And let loose the dogs of war
    reactor.run()

# this only runs if the module was *not* imported
if __name__ == '__main__':
    main()

测试扭曲的应用 - 加载客户端

1 个答案: