IDE: Make ST code generation more verbose, since it can be really long in case of big programs, and it is better to let the user know build is still in progress.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz runtime.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING.Runtime file for copyrights details.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from __future__ import absolute_import
from __future__ import print_function
import socket
import threading
import zeroconf
service_type = '_Beremiz._tcp.local.'
class ServicePublisher(object):
def __init__(self, protocol):
# type: fully qualified service type name
self.serviceproperties = {
'description': 'Beremiz remote PLC',
'protocol': protocol
}
self.name = None
self.ip_32b = None
self.port = None
self.server = None
self.service_name = None
self.retrytimer = None
def RegisterService(self, name, ip, port):
try:
self._RegisterService(name, ip, port)
except Exception:
self.retrytimer = threading.Timer(2, self.RegisterService, [name, ip, port])
self.retrytimer.start()
def _RegisterService(self, name, ip, port):
# name: fully qualified service name
self.service_name = '%s.%s' % (name, service_type)
self.name = name
self.port = port
if ip == "0.0.0.0":
print("MDNS brodcasted on all interfaces")
interfaces = zeroconf.InterfaceChoice.All
ip = self.gethostaddr()
else:
interfaces = [ip]
self.server = zeroconf.Zeroconf(interfaces=interfaces)
print("MDNS brodcasted service address :" + ip)
self.ip_32b = socket.inet_aton(ip)
self.server.register_service(
zeroconf.ServiceInfo(service_type,
self.service_name,
self.ip_32b,
self.port,
properties=self.serviceproperties))
self.retrytimer = None
def UnRegisterService(self):
if self.retrytimer is not None:
self.retrytimer.cancel()
if self.server is not None:
self.server.unregister_service(
zeroconf.ServiceInfo(service_type,
self.service_name,
self.ip_32b,
self.port,
properties=self.serviceproperties))
self.server.close()
self.server = None
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 Exception:
pass
return socket.gethostbyname(socket.gethostname())