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pass dmx choice into dmxserver Ignore-this: 182e13858be1aa68fc956e345dbbf8ed
author Drew Perttula <drewp@bigasterisk.com>
date Fri, 07 Jun 2013 07:13:24 +0000
parents a301a0039c66
children 527b592b482a
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rev   line source
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a301a0039c66 buildout and rdflib updates
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1 #!bin/python
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2 """
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3
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4 this is the only process to talk to the dmx hardware. other clients
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5 can connect to this server and present dmx output, and this server
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6 will max ('pile-on') all the client requests.
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7
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8 this server has a level display which is the final set of values that
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9 goes to the hardware.
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10
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11 clients shall connect to the xmlrpc server and send:
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12
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13 their PID (or some other cookie)
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14
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15 a length-n list of 0..1 levels which will represent the channel
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16 values for the n first dmx channels.
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17
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18 server is port 8030; xmlrpc method is called outputlevels(pid,levellist).
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19
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20 todo:
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21 save dmx on quit and restore on restart
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22 if parport fails, run in dummy mode (and make an option for that too)
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23 """
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24
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25 from __future__ import division
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26 from twisted.internet import reactor
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27 from twisted.web import xmlrpc, server
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28 import sys,time,os
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29 from optparse import OptionParser
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30 import run_local
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31 from light9.io import ParportDMX, UsbDMX
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32
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33 from light9.updatefreq import Updatefreq
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34 from light9 import networking
0
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35
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36 class XMLRPCServe(xmlrpc.XMLRPC):
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37 def __init__(self,options):
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38
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39 xmlrpc.XMLRPC.__init__(self)
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40
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41 self.clientlevels={} # clientID : list of levels
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42 self.lastseen={} # clientID : time last seen
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43 self.clientfreq={} # clientID : updatefreq
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44
0
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45 self.combinedlevels=[] # list of levels, after max'ing the clients
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46 self.clientschanged=1 # have clients sent anything since the last send?
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47 self.options=options
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48 self.lastupdate=0 # time of last dmx send
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49 self.laststatsprint=0 # time
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50
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51 # desired seconds between sendlevels() calls
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52 self.calldelay=1/options.updates_per_sec
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53
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54 print "starting parport connection"
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55 self.parportdmx = UsbDMX(port=options.dmx_device)
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56 if os.environ.get('DMXDUMMY',0):
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57 self.parportdmx.godummy()
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58 else:
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59 self.parportdmx.golive()
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60
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61
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62 self.updatefreq=Updatefreq() # freq of actual dmx sends
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63 self.num_unshown_updates=None
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64 self.lastshownlevels=None
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65 # start the loop
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66 self.sendlevels()
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67
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68 # the other loop
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69 self.purgeclients()
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70
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71 def purgeclients(self):
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72
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73 """forget about any clients who haven't sent levels in a while.
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74 this runs in a loop"""
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75
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76 purge_age=10 # seconds
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77
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78 reactor.callLater(1,self.purgeclients)
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79
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80 now=time.time()
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81 cids = self.lastseen.keys()
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82 for cid in cids:
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83 lastseen=self.lastseen[cid]
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84 if lastseen < now - purge_age:
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85 print ("forgetting client %s (no activity for %s sec)" %
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86 (cid,purge_age))
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87 try:
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88 del self.clientlevels[cid]
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89 except KeyError:
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90 pass
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91 del self.clientfreq[cid]
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92 del self.lastseen[cid]
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93
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94 def sendlevels(self):
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95
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96 """sends to dmx if levels have changed, or if we havent sent
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97 in a while"""
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98
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99 reactor.callLater(self.calldelay,self.sendlevels)
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100
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101 if self.clientschanged:
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102 # recalc levels
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103
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104 self.calclevels()
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105
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106 if (self.num_unshown_updates is None or # first time
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107 self.options.fast_updates or # show always
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108 (self.combinedlevels!=self.lastshownlevels and # changed
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109 self.num_unshown_updates>5)): # not too frequent
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110 self.num_unshown_updates=0
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111 self.printlevels()
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112 self.lastshownlevels=self.combinedlevels[:]
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113 else:
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114 self.num_unshown_updates+=1
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115
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116 if time.time()>self.laststatsprint+2:
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117 self.laststatsprint=time.time()
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118 self.printstats()
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119
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120 # used to be a fixed 1 in here, for the max delay between
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121 # calls, instead of calldelay
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122 if self.clientschanged or time.time() > self.lastupdate + self.calldelay:
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123 self.lastupdate=time.time()
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124 self.sendlevels_dmx()
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125
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126 self.clientschanged=0 # clear the flag
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127
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128 def calclevels(self):
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129 """combine all the known client levels into self.combinedlevels"""
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130 self.combinedlevels=[]
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131 for chan in range(0,self.parportdmx.dimmers):
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132 x=0
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133 for clientlist in self.clientlevels.values():
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134 if len(clientlist)>chan:
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135 # clamp client levels to 0..1
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136 cl=max(0,min(1,clientlist[chan]))
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137 x=max(x,cl)
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138 self.combinedlevels.append(x)
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139
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140 def printlevels(self):
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141 """write all the levels to stdout"""
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142 print "Levels:","".join(["% 2d "%(x*100) for
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143 x in self.combinedlevels])
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144
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145 def printstats(self):
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146 """print the clock, freq, etc, with a \r at the end"""
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147
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148 sys.stdout.write("dmxserver up at %s, [polls %s] "%
118
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149 (time.strftime("%H:%M:%S"),
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150 str(self.updatefreq),
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151 ))
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152 for cid,freq in self.clientfreq.items():
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153 sys.stdout.write("[%s %s] " % (cid,str(freq)))
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154 sys.stdout.write("\r")
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155 sys.stdout.flush()
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156
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157 def sendlevels_dmx(self):
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158 """output self.combinedlevels to dmx, and keep the updates/sec stats"""
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159 # they'll get divided by 100
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160 if self.parportdmx:
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161 self.parportdmx.sendlevels([l*100 for l in self.combinedlevels])
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162 self.updatefreq.update()
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163
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164 def xmlrpc_echo(self,x):
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165 return x
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166
118
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167 def xmlrpc_outputlevels(self,cid,levellist):
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168 """send a unique id for your client (name+pid maybe), then
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169 the variable-length dmx levellist (scaled 0..1)"""
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170 if levellist!=self.clientlevels.get(cid,None):
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171 self.clientlevels[cid]=levellist
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172 self.clientschanged=1
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173 self.trackClientFreq(cid)
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174 return "ok"
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175
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176 def xmlrpc_currentlevels(self, cid):
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177 """get a list of levels we're currently sending out. All
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178 channels beyond the list you get back, they're at zero."""
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179 # if this is still too slow, it might help to return a single
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180 # pickled string
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181 self.trackClientFreq(cid)
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182 trunc = self.combinedlevels[:]
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183 i = len(trunc) - 1
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184 if i < 0:
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185 return []
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186 while trunc[i] == 0 and i >= 0:
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187 i -= 1
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188 if i < 0:
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189 return []
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190 trunc = trunc[:i+1]
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191 return trunc
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192
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193 def trackClientFreq(self, cid):
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194 if cid not in self.lastseen:
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195 print "hello new client %s" % cid
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196 self.clientfreq[cid]=Updatefreq()
118
2c25a69c084d now tracks update frequencies of the server and each client
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197 self.lastseen[cid]=time.time()
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198 self.clientfreq[cid].update()
353
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199
352
9d1f323fb3d3 new bin/lightsim tied to dmxserver
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200
118
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201 parser=OptionParser()
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202 parser.add_option("-f","--fast-updates",action='store_true',
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203 help=('display all dmx output to stdout instead '
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204 'of the usual reduced output'))
134
f2f73a2171e6 many adjustments to the loops and timing
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205 parser.add_option("-r","--updates-per-sec",type='float',default=20,
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206 help=('dmx output frequency'))
876
e263c4bd73f9 pass dmx choice into dmxserver
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207 parser.add_option("-d","--dmx-device", default='/dev/dmx0',
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208 help='dmx device name')
419
632539a8c30e dmxserver now takes -n/--dummy
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209 parser.add_option("-n", "--dummy", action="store_true",
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210 help="dummy mode, same as DMXDUMMY=1 env variable")
118
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211 (options,songfiles)=parser.parse_args()
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212
134
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drewp
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213 print options
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214
419
632539a8c30e dmxserver now takes -n/--dummy
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215 if options.dummy:
632539a8c30e dmxserver now takes -n/--dummy
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216 os.environ['DMXDUMMY'] = "1"
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217
623
46d319974176 move networking settings to config.n3
drewp@bigasterisk.com
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218 port = networking.dmxServer.port
210
f41004d5a507 factored out some networking, new show/ layout, curvecalc works
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219 print "starting xmlrpc server on port %s" % port
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220 reactor.listenTCP(port,server.Site(XMLRPCServe(options)))
0
45b12307c695 Initial revision
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221 reactor.run()
45b12307c695 Initial revision
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222