light9 Changeset - 2c25a69c084d

Changeset - 2c25a69c084d

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drewp - 22 years ago 2003-06-13 13:59:08

now tracks update frequencies of the server and each client
now tracks update frequencies of the server and each client
now forgets clients that haven't submitted a value in 5sec

refactored sendlevels into a few methods

new cmdline option --fast-updates to dump every DMX transmission to the console

1 file changed with 91 insertions and 25 deletions:

light8/dmxserver.py

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light8/dmxserver.py

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@@ @@ -17,7 +17,6 @@ clients shall connect to the xmlrpc serv @@
 server is port 8030; xmlrpc method is called outputlevels(pid,levellist).
 todo:
   save dmx on quit and restore on restart
   if parport fails, run in dummy mode (and make an option for that too)
@@ @@ -27,62 +26,129 @@ from __future__ import division @@
 from twisted.internet import reactor
 from twisted.web import xmlrpc, server
 import sys,time
 from optik import OptionParser
 from io import ParportDMX
 from updatefreq import Updatefreq
 class XMLRPCServe(xmlrpc.XMLRPC):
     def __init__(self):
+    def __init__(self,options):
         xmlrpc.XMLRPC.__init__(self)
         self.clientlevels={} # clientPID : list of levels
         self.clientlevels={} # clientID : list of levels
         self.lastseen={} # clientID : time last seen
         self.clientfreq={} # clientID : updatefreq
         self.combinedlevels=[] # list of levels, after max'ing the clients
         self.clientschanged=1 # have clients sent anything since the last send?
         self.options=options
         print "starting parport connection"
         self.parportdmx=ParportDMX()
         self.parportdmx.golive()
         # start the loop
         self.updatefreq=Updatefreq()
         self.num_unshown_updates=None
         self.lastshownlevels=None
         self.sendlevels()
     def purgeclients(self):
         """forget about any clients who haven't sent levels in a while
         (5 seconds)"""
         now=time.time()
         for cid,lastseen in self.lastseen.items():
             if lastseen<now-5:
                 print "forgetting client %s (no activity for 5sec)" % cid
                 del self.clientlevels[cid]
                 del self.lastseen[cid]
                 del self.clientfreq[cid]
     def sendlevels(self):
-        reactor.callLater(.02,self.sendlevels)
+        reactor.callLater(1/20,self.sendlevels)
         if self.clientschanged:
             # recalc levels
             oldlevels=self.combinedlevels[:]
             self.combinedlevels=[]
             for chan in range(0,self.parportdmx.dimmers):
                 x=0
                 for clientlist in self.clientlevels.values():
                     if len(clientlist)>chan:
                         x=max(x,clientlist[chan])
                 self.combinedlevels.append(x)
             if self.num_unshown_updates is None or (self.combinedlevels!=oldlevels and
                                                     self.num_unshown_updates>10):
             self.purgeclients()
             self.calclevels()
             if (self.num_unshown_updates is None or # first time
                 self.options.fast_updates or # show always
                 (self.combinedlevels!=self.lastshownlevels and # changed
                  self.num_unshown_updates>10)): # not too frequent
                 self.num_unshown_updates=0
                 print "Levels:","".join(["% 2d "%x for x in self.combinedlevels])
                 self.printlevels()
                 self.lastshownlevels=self.combinedlevels[:]
             else:
                 self.num_unshown_updates+=1
         if (self.num_unshown_updates-1)%100==0:
             sys.stdout.write("dmxserver up at %s   \r"%time.strftime("%H:%M:%S"))
             sys.stdout.flush()
         # now send combinedlevels (they'll get divided by 100)
         if (self.num_unshown_updates-1)%50==0:
             self.printstats()
         self.sendlevels_dmx()
     def calclevels(self):
         """combine all the known client levels into self.combinedlevels"""
         self.combinedlevels=[]
         for chan in range(0,self.parportdmx.dimmers):
             x=0
             for clientlist in self.clientlevels.values():
                 if len(clientlist)>chan:
                     # clamp client levels to 0..1
                     cl=max(0,min(1,clientlist[chan]))
                     x=max(x,cl)
             self.combinedlevels.append(x)
     def printlevels(self):
         """write all the levels to stdout"""
         print "Levels:","".join(["% 2d "%(x*100) for
                                  x in self.combinedlevels])
     def printstats(self):
         """print the clock, freq, etc, with a \r at the end"""
         sys.stdout.write("dmxserver up at %s, [server %s] "%
                          (time.strftime("%H:%M:%S"),
                           str(self.updatefreq),
                           ))
         for cid,freq in self.clientfreq.items():
             sys.stdout.write("[%s %s] " % (cid,str(freq)))
         sys.stdout.write("\r")
         sys.stdout.flush()
     def sendlevels_dmx(self):
         """output self.combinedlevels to dmx, and keep the updates/sec stats"""
         # they'll get divided by 100
         if self.parportdmx:
             self.parportdmx.sendlevels([l*100 for l in self.combinedlevels])
             self.parportdmx.sendlevels([l*100 for l in self.combinedlevels])
         self.updatefreq.update()
     def xmlrpc_echo(self,x):
         return x
     def xmlrpc_outputlevels(self,pid,levellist):
         self.clientlevels[pid]=levellist
     def xmlrpc_outputlevels(self,cid,levellist):
         """send a unique id for your client (name+pid maybe), then
         the variable-length dmx levellist (scaled 0..1)"""
         self.clientlevels[cid]=levellist
         self.clientschanged=1
         if cid not in self.lastseen:
             print "hello new client %s" % cid
             self.clientfreq[cid]=Updatefreq()
         self.lastseen[cid]=time.time()
         self.clientfreq[cid].update()
         return "ok"
 parser=OptionParser()
 parser.add_option("-f","--fast-updates",action='store_true',
                   help=('display all dmx output to stdout instead '
                         'of the usual reduced output'))
 (options,songfiles)=parser.parse_args()
 print "starting xmlrpc server on port 8030"
 reactor.listenTCP(8030,server.Site(XMLRPCServe()))
+reactor.listenTCP(8030,server.Site(XMLRPCServe(options)))
 reactor.run()

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