Python Twisted TCP套接字如何设置TCP_NODELAY（禁用Nagle的算法）？ [英] Python Twisted TCP socket how to set TCP_NODELAY (Disable Nagle's algorithm)?

问题描述

我有一个正在进行中的实时多人游戏（目前在应用商店中： https://itunes.apple.com/us/app/blewp!-eat-or-be-eaten-mmo/id996122625?mt=8 ），并且我同时使用TCP和UDP发送实时消息（TCP用于需要可靠性的消息，例如玩家死亡），并且我的服务器端是用python编写的，服务器使用Twisted。我经常不得不快速发送小数据包，并且禁用数据包排队（Nagle的算法）应该有助于使数据包更快到达。

I have a real-time multiplayer game in continued development (It's currently live on the app store: https://itunes.apple.com/us/app/blewp!-eat-or-be-eaten-mmo/id996122625?mt=8), and I use both TCP and UDP for sending real-time messages (TCP for messages that need reliability, like players dieing), and my server-side is written in python, using Twisted for the server. I often have to send small packets quickly, and disabling packet queuing (Nagle's algo.) should help get packs to arrive faster.

我对twisted进行了一些研究，发现此设置在abstract.FileDescriptor下处于twisted（文档链接： http://twistedmatrix.com/documents/8.1.0/api/twisted.internet.tcp.Connection.html ）

I did some research on twisted, and found that this setting is under abstract.FileDescriptor in twisted (documentation link: http://twistedmatrix.com/documents/8.1.0/api/twisted.internet.tcp.Connection.html)

我是Twisted的新手，所以有人可以告诉我如何为TCP协议服务器实际调用此设置吗？我找不到在哪里可以访问FileDescriptor。 :(

I'm quite new to Twisted, so could someone tell me how to actually call this setting, for a TCP Protocol server? I couldn't find where the FileDescriptor is accessable. :(

示例代码行会很不错，建议总是很受欢迎；）

A line of example code would be nice, advice is always appreciated ;)

这是一个我做一个简单的例子来帮助解释这个问题：

Here is a simple example I made to help explain the question:

class TCPProtocol(Protocol):

    def connectionMade(self):
        #add to list of connected clients
        factory.clients.append(self)
        '''HELP HERE PLEASE!!!'''
        '''EG.  self.NO_DELAY=True HOW DO I SET THIS?'''


    def dataReceived(self, data):
        pass

    def sendData(self, data):
        self.transport.write(data)



#setup factory and TCP protocol class
factory = Factory()
factory.protocol = TCPProtocol
factory.clients = []
reactor.listenTCP(1959, factory)

推荐答案

协议对象的 self.transport 就是您要查找的 FileDescriptor 。这段代码应该执行您想要的操作：

A Protocol object has a self.transport that is the FileDescriptor you're looking for. This code should do what you want:

class TCPProtocol(Protocol):

    def connectionMade(self):
        # add to list of connected clients
        factory.clients.append(self)
        self.transport.setTcpNoDelay(True)

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