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1 """ module for clients to use for easy talking to the dmx
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2 server. sending levels is now a simple call to
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3 dmxclient.outputlevels(..)
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4
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5 client id is formed from sys.argv[0] and the PID. """
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6
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7 import xmlrpclib,os,sys,socket,time
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8 from twisted.web.xmlrpc import Proxy
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9 _dmx=None
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10
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11 _id="%s-%s" % (sys.argv[0].replace('.py','').replace('./',''),os.getpid())
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12
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13 def outputlevels(levellist,twisted=0):
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14 """present a list of dmx channel levels, each scaled from
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15 0..1. list can be any length- it will apply to the first len() dmx
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16 channels.
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17
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18 if the server is not found, outputlevels will block for a
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19 second."""
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20
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21 global _dmx,_id
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22
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23 if _dmx is None:
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24 host = os.getenv('DMXHOST', 'localhost')
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25 url = "http://%s:8030" % host
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26 if not twisted:
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27 _dmx=xmlrpclib.Server(url)
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28 else:
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29 _dmx = Proxy(url)
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30
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31 if not twisted:
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32 try:
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33 _dmx.outputlevels(_id,levellist)
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34 except socket.error,e:
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35 print "dmx server error %s, waiting"%e
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36 time.sleep(1)
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37 except xmlrpclib.Fault,e:
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38 print "outputlevels had xml fault: %s" % e
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39 time.sleep(1)
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40 else:
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41 def err(error):
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42 print "dmx server error",error
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43 time.sleep(1)
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44 d = _dmx.callRemote('outputlevels',_id,levellist)
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45 d.addErrback(err)
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46
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47
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48 dummy = os.getenv('DMXDUMMY')
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49 if dummy:
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50 print "dmxclient: DMX is in dummy mode."
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51 def bogus(*args):
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52 pass
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53 outputlevels = bogus
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