class Server():
def __init__(self, servicename, ip_addr, port,
workdir, argv, autostart=False,
statuschange=None, evaluator=default_evaluator,
pyruntimevars=None):
self.continueloop = True
self.daemon = None
self.servicename = servicename
self.ip_addr = ip_addr
self.port = port
self.workdir = workdir
self.argv = argv
self.plcobj = None
self.servicepublisher = None
self.autostart = autostart
self.statuschange = statuschange
self.evaluator = evaluator
self.pyruntimevars = pyruntimevars
def Loop(self):
while self.continueloop:
self.Start()
def Restart(self):
self.Stop()
def Quit(self):
self.continueloop = False
if self.plcobj is not None:
self.plcobj.StopPLC()
self.plcobj.UnLoadPLC()
self.Stop()
def Start(self):
pyro.initServer()
self.daemon = pyro.Daemon(host=self.ip_addr, port=self.port)
self.plcobj = PLCObject(self.workdir, self.daemon, self.argv,
self.statuschange, self.evaluator,
self.pyruntimevars)
uri = self.daemon.connect(self.plcobj, "PLCObject")
print _("Pyro port :"), self.port
print _("Pyro object's uri :"), uri
# Beremiz IDE detects daemon start by looking
# for self.workdir in the daemon's stdout.
# Therefore don't delete the following line
print _("Current working directory :"), self.workdir
# Configure and publish service
# Not publish service if localhost in address params
if self.servicename is not None and \
self.ip_addr is not None and \
self.ip_addr != "localhost" and \
self.ip_addr != "127.0.0.1":
print _("Publishing service on local network")
self.servicepublisher = ServicePublisher.ServicePublisher()
self.servicepublisher.RegisterService(self.servicename, self.ip_addr, self.port)
self.plcobj.AutoLoad()
if self.plcobj.GetPLCstatus()[0] != "Empty":
if self.autostart:
self.plcobj.StartPLC()
self.plcobj.StatusChange()
sys.stdout.flush()
self.daemon.requestLoop()
self.daemon.sock.close()
def Stop(self):
if self.plcobj is not None:
self.plcobj.StopPLC()
if self.servicepublisher is not None:
self.servicepublisher.UnRegisterService()
self.servicepublisher = None
self.daemon.shutdown(True)
class Server(object):
def __init__(self,
servicename,
ip_addr,
port,
workdir,
argv,
statuschange=None,
evaluator=default_evaluator,
pyruntimevars=None):
self.continueloop = True
self.daemon = None
self.servicename = servicename
self.ip_addr = ip_addr
self.port = port
self.workdir = workdir
self.argv = argv
self.servicepublisher = None
self.statuschange = statuschange
self.evaluator = evaluator
self.pyruntimevars = pyruntimevars
self.plcobj = PLCObject(self)
def _to_be_published(self):
return self.servicename is not None and \
self.ip_addr is not None and \
self.ip_addr != "localhost" and \
self.ip_addr != "127.0.0.1"
def PrintServerInfo(self):
print(_("Pyro port :"), self.port)
# Beremiz IDE detects LOCAL:// runtime is ready by looking
# for self.workdir in the daemon's stdout.
print(_("Current working directory :"), self.workdir)
if self._to_be_published():
print(_("Publishing service on local network"))
sys.stdout.flush()
def PyroLoop(self, when_ready):
while self.continueloop:
Pyro.config.PYRO_MULTITHREADED = 0
pyro.initServer()
self.daemon = pyro.Daemon(host=self.ip_addr, port=self.port)
# pyro never frees memory after connection close if no timeout set
# taking too small timeout value may cause
# unwanted diconnection when IDE is kept busy for long periods
self.daemon.setTimeout(60)
self.daemon.connect(self.plcobj, "PLCObject")
if self._to_be_published():
self.servicepublisher = ServicePublisher.ServicePublisher()
self.servicepublisher.RegisterService(self.servicename,
self.ip_addr, self.port)
when_ready()
self.daemon.requestLoop()
self.daemon.sock.close()
def Restart(self):
self._stop()
def Quit(self):
self.continueloop = False
if self.plcobj is not None:
self.plcobj.StopPLC()
self.plcobj.UnLoadPLC()
self._stop()
def _stop(self):
if self.plcobj is not None:
self.plcobj.StopPLC()
if self.servicepublisher is not None:
self.servicepublisher.UnRegisterService()
self.servicepublisher = None
self.daemon.shutdown(True)
def AutoLoad(self):
self.plcobj.AutoLoad()
if self.plcobj.GetPLCstatus()[0] == "Stopped":
if autostart:
self.plcobj.StartPLC()
self.plcobj.StatusChange()