Question

我有一个Moxa device从串行数据创建Tcp-ip消息并通过LAN发送给我。我需要用python服务器听他特定的external-ip（172.16.0.77）。我试着这样做：

    BUFFER_SIZE = 10000  # Normally 1024, but we want fast response
    HOST = self.TCP_IP  #(172.16.0.77)
    PORT = self.TCP_PORT              # Arbitrary non-privileged port
    s = None
    for res in socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC,
                                  socket.SOCK_STREAM, 0, socket.AI_PASSIVE):
        af, socktype, proto, canonname, sa = res
        try:
            s = socket.socket(af, socktype, proto)
        except socket.error as msg:
            print msg
            s = None
            continue
        try:
            s.bind(sa)
            s.listen(1)
        except socket.error as msg:
            print msg
            s.close()
            s = None
            continue
        break
    if s is None:
        print 'could not open socket'
    while s:
        print s.getsockname()
        conn, addr = s.accept()
        print 'Connection address:', addr
        data = conn.recv(BUFFER_SIZE)
        if data:
            self.emit(QtCore.SIGNAL("SamplesRecive"),data)
        conn.close()

我得到：[Errno 10049]请求的地址在其上下文中无效，无法打开套接字我需要将服务划分为许多Moxa设备，因此我无法使用socket.INADDR_ANY

有什么想法吗？

Answer 1

socket.INADDR_ANY等于socket.bind('0.0.0.0')

如果绑定到＆＃34; 0.0.0.0＆＃34;可以听所有接口（可用）

Moxa TCP示例：

import socket,time
import thread

#Example client
class _client :
    def __init__(self):
        self.status = False
    def run(self,clientsock,addr):
        while 1 :
            try:
                data = clientsock.recv(BUFF)
                if data :
                    #do something with data
                    time.sleep(.1)
                    if self.status == False:
                        clientsock.close()
                        break
                    clientsock.send(next_query)


             except Exception,e :
                print e
                break
client = _client()
ADDR = ("0.0.0.0", 45500) #so you need port how to decode raw socket data ?
serversock = socket(AF_INET, SOCK_STREAM)
serversock.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
serversock.setsockopt(IPPROTO_TCP, TCP_NODELAY, 1)#gain 50ms tcp delay
serversock.bind(ADDR)
serversock.listen(10)

While True :
    clientsock, addr = serversock.accept()
    if addr[0] == device_1_IP:
        client.status = True
        #start device1 thread(moxa is TCP client mode)
        thread.start_new_thread(client.run, (clientsock, addr))
        #if client.status = False you will be close connection.

但我的提议是＆＃34;使用带有TCP服务器模式的moxa＆＃34;

我在120设备上使用了4x5450i 3x5250而没有任何错误。

试图绑定到特定的外部ip :: [Errno 10049]请求的地址在其上下文中无效无法打开socket-（python 2.7）

1 个答案: