author | lbessard |
Mon, 23 Mar 2009 16:26:13 +0100 | |
changeset 323 | 9f07f0d429df |
parent 262 | 141a7145c099 |
child 606 | 780bd150ebba |
permissions | -rwxr-xr-x |
#!/usr/bin/env python # -*- coding: utf-8 -*- #This file is part of Beremiz, a Integrated Development Environment for #programming IEC 61131-3 automates supporting plcopen standard and CanFestival. # #Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD # #See COPYING file for copyrights details. # #This library is free software; you can redistribute it and/or #modify it under the terms of the GNU General Public #License as published by the Free Software Foundation; either #version 2.1 of the License, or (at your option) any later version. # #This library is distributed in the hope that it will be useful, #but WITHOUT ANY WARRANTY; without even the implied warranty of #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU #General Public License for more details. # #You should have received a copy of the GNU General Public #License along with this library; if not, write to the Free Software #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA import Zeroconf, socket class ServicePublisher(): def __init__(self): # type: fully qualified service type name self.service_type = '_PYRO._tcp.local.' # properties: dictionary of properties (or a string holding the bytes for the text field) self.serviceproperties = {'description':'Beremiz remote PLC'} self.name = None self.ip_32b = None self.port = None self.server = None self.service_name = None def RegisterService(self, name, ip, port): # name: fully qualified service name self.service_name = 'Beremiz_%s.%s'%(name,self.service_type) self.name = name self.port = port # No ip params -> get host ip if ip == "": ip = self.gethostaddr() print "My IP is :"+ip self.server = Zeroconf.Zeroconf(ip) # address: IP address as unsigned short, network byte order self.ip_32b = socket.inet_aton(ip) self.server.registerService( Zeroconf.ServiceInfo(self.service_type, self.service_name, self.ip_32b, self.port, properties = self.serviceproperties)) def UnRegisterService(self): self.server.unregisterService( Zeroconf.ServiceInfo(self.service_type, self.service_name, self.ip_32b, self.port, properties = self.serviceproperties)) self.server.close() del self.server def gethostaddr(self, dst = '224.0.1.41'): s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) try: s.connect((dst, 7)) (host, port) = s.getsockname() s.close() if host != '0.0.0.0': return host except error: pass return socket.gethostbyname(socket.gethostname())