90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
from core.experience import Experience, ExperienceParameter
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import os
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class ExperienceVLC(Experience):
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SERVER_LOG = "vlc_server.log"
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CLIENT_LOG = "vlc_client.log"
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VLC_BIN = "/home/mininet/vlc/vlc"
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PING_OUTPUT = "ping.log"
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def __init__(self, xpParamFile, mpTopo, mpConfig):
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Experience.__init__(self, xpParamFile, mpTopo, mpConfig)
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self.loadParam()
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self.ping()
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Experience.classicRun(self)
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def ping(self):
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self.mpTopo.commandTo(self.mpConfig.client, "rm " + \
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ExperienceVLC.PING_OUTPUT )
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count = self.xpParam.getParam(ExperienceParameter.PINGCOUNT)
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for i in range(0, self.mpConfig.getClientInterfaceCount()):
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cmd = self.pingCommand(self.mpConfig.getClientIP(i),
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self.mpConfig.getServerIP(), n = count)
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self.mpTopo.commandTo(self.mpConfig.client, cmd)
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def pingCommand(self, fromIP, toIP, n=5):
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s = "ping -c " + str(n) + " -I " + fromIP + " " + toIP + \
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" >> " + ExperienceVLC.PING_OUTPUT
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print(s)
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return s
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def loadParam(self):
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"""
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todo : param LD_PRELOAD ??
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"""
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self.file = self.xpParam.getParam(ExperienceParameter.VLCFILE)
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self.time = self.xpParam.getParam(ExperienceParameter.VLCTIME)
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# todo
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# self.random_size = self.xpParam.getParam(ExperienceParameter.VLCRANDOMSIZE)
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def prepare(self):
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Experience.prepare(self)
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self.mpTopo.commandTo(self.mpConfig.client, "rm " + \
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ExperienceVLC.CLIENT_LOG )
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self.mpTopo.commandTo(self.mpConfig.client, "Xvfb :66 &")
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self.mpTopo.commandTo(self.mpConfig.server, "rm " + \
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ExperienceVLC.SERVER_LOG )
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if self.file == "random":
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self.mpTopo.commandTo(self.mpConfig.client,
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"dd if=/dev/urandom of=random bs=1K count=" + \
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self.random_size)
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def getVLCServerCmd(self):
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s = "/etc/init.d/apache2 restart &>" + ExperienceVLC.SERVER_LOG + " "
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print(s)
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return s
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def getVLCClientCmd(self):
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s = "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/mininet/usr/lib/ && sudo ldconfig && " \
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+ ExperienceVLC.VLC_BIN + " -I dummy --x11-display :66" + \
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" --adaptive-logic 3 --no-loop --play-and-exit " + \
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" http://" + self.mpConfig.getServerIP() + \
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"/" + self.file + " 2>&1 | grep -E '(Neb|halp|bandwidth|late|Buffering|buffering)' > " + ExperienceVLC.CLIENT_LOG
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if self.time != "0" :
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s = s + " &"
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print(s)
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return s
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def clean(self):
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Experience.clean(self)
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if self.file == "random":
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self.mpTopo.commandTo(self.mpConfig.client, "rm random*")
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self.mpTopo.commandTo(self.mpConfig.client, "pkill Xvfb")
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#todo use cst
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#self.mpTopo.commandTo(self.mpConfig.server, "killall netcat")
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def run(self):
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cmd = self.getVLCServerCmd()
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self.mpTopo.commandTo(self.mpConfig.server, cmd)
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self.mpTopo.commandTo(self.mpConfig.client, "sleep 1")
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cmd = self.getVLCClientCmd()
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self.mpTopo.commandTo(self.mpConfig.client, cmd)
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if self.time != "0" :
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self.mpTopo.commandTo(self.mpConfig.client, "sleep " + self.time)
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self.mpTopo.commandTo(self.mpConfig.client, "pkill -9 -f vlc")
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self.mpTopo.commandTo(self.mpConfig.client, "sleep 2")
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