Question

尝试将用C ++编写的服务器转换为Python。服务器被编写为异步/非阻塞。在C ++中有用的东西似乎不想在Python中为我工作

我正在使用PyQT4。我阅读Python你必须创建事件循环或类似的东西，任何想法都非常感激

我应该提一下似乎不起作用的是，从不调用类服务器中的 incomingConnection 函数。

*欢呼声

import sys
from PyQt4.QtCore import *
from PyQt4.QtNetwork import *


class Client(QObject):
    def __init__(self, parent=None):
        QObject.__init__(self)
        QThreadPool.globalInstance().setMaxThreadCount(15)

    def SetSocket(self, Descriptor):
        self.socket = QTcpSocket(self)
        self.connect(self.socket, SIGNAL("connected()"), SLOT(self.connected()))
        self.connect(self.socket, SIGNAL("disconnected()"), SLOT(self.disconnected()))
        self.connect(self.socket, SIGNAL("readyRead()"), SLOT(self.readyRead()))

        self.socket.setSocketDescriptor(Descriptor)
        print "Client Connected from IP %s" % self.socket.peerAddress().toString()

    def connected(self):
        print "Client Connected Event"

    def disconnected(self):
        print "Client Disconnected"

    def readyRead(self):
        msg = self.socket.readAll()
        print msg


class Server(QObject):
    def __init__(self, parent=None):
        QObject.__init__(self)

    def incomingConnection(self, handle):
        print "incoming"
        self.client = Client(self)
        self.client.SetSocket(handle)

    def StartServer(self):
        self.server = QTcpServer()
        if self.server.listen(QHostAddress("0.0.0.0"), 8888):
            print "Server is awake"    
        else:
            print "Server couldn't wake up"


def main():
    app = QCoreApplication(sys.argv)
    Server().StartServer()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

Answer 1

incomingConnection未被调用，因为调用了QTcpServer函数的基本实现。因为incomingConnection是一个虚函数，你只需要将你的分配给QTcpServer的incomingConnection属性，如下所示：

class Server(QObject):
    def __init__(self, parent=None):
        QObject.__init__(self)

    def incomingConnection(self, handle):
        print "incoming"
        self.client = Client(self)
        self.client.SetSocket(handle)

    def StartServer(self):
        self.server = QTcpServer()
        self.server.incomingConnection = self.incomingConnection
        if self.server.listen(QHostAddress("0.0.0.0"), 8888):
            print "Server is awake"    
        else:
            print "Server couldn't wake up"

你可以查看PySide的文档，因为它比PyQt更加pythonic，目前只在这里托管： http://srinikom.github.com/pyside-docs/

PyQT4异步QTcpServer（如何创建事件循环）

1 个答案: