def processOutgoingpackets (self):
for faceName , face in self.outputFaces.items():
if not self.facesFlags[faceName]:
face.append("0")
self.facesFlags[faceName] = True
logging.debug(self.name + " ++ " + faceName + " " + str(face))
def forwardInterestPacketNoCache(self, interestPacket, faceName):
self.residualPower -= 1
interestName = interestPacket.name
outgoingFaceName = self.fib[interestName]
# we must forward interest
if self.pit.__contains__(interestName):
containsEntryFlag = False
table = self.pit[interestName]
self.cacheMiss += 1
for array in table:
if array[0] == faceName and array[1] == outgoingFaceName:
containsEntryFlag = True
if not containsEntryFlag:
table.append([faceName, outgoingFaceName, interestPacket.freshness])
# it is forward
logging.debug(self.name + ": forward interest packet " + interestName + " to " + outgoingFaceName)
print (
self.name + ": forward interest packet " + interestName + " to " + outgoingFaceName + " pit contains")
self.sendOut(interestPacket, outgoingFaceName)
else:
# it is forward
self.cacheMiss += 1
logging.debug(self.name + ": forward interest packet " + interestName + " to " + outgoingFaceName)
print (
self.name + ": forward interest packet " + interestName + " to " + outgoingFaceName + " pit doesn't contain")
self.sendOut(interestPacket, outgoingFaceName)
self.pit[interestName] = []
self.pit[interestName].append([faceName, outgoingFaceName, interestPacket.freshness])
def forwardDataPacketPcasting(self, dataPacket, faceName):
self.residualPower -= 1
interestName = dataPacket.name
if self.pit.__contains__(interestName):
table = self.pit[interestName]
ntable = []
for array in table:
if array[1] == faceName and self.getFreshness(dataPacket) > array[2]:
logging.debug(self.name + ": data packet " + dataPacket.name + " forwarded to " + array[0])
self.sendOut(dataPacket, array[0])
else:
ntable.append(array)
if ntable == []:
self.pit.pop(interestName)
else:
self.pit[interestName] = ntable
print self.name , " pacasting "
fu = (float(self.residualPower)/self.totalPower + float(self.residualCacheSize)/self.memorySize + self.getFreshness(dataPacket))/3
probability = int(fu * 100)
rand = random.randint(0 , 100)
print "residualPower/totalPower: " , float(self.residualPower)/self.totalPower , " residualCacheSize/memorySize: " , float(self.residualCacheSize)/self.memorySize , " Freshness: " , self.getFreshness(dataPacket)
print "fu: " , fu , "probability: " , probability , " rand: " , rand
if rand < probability:
self.cacheManagementByFrequency(dataPacket)
def sendOut (self , packet , faceName): # forward functions use this function
self.residualPower -= 1
queue = self.outputFaces[faceName]
queue.append(packet)
self.facesFlags[faceName] = True
logging.debug( self.name+ ": packet "+ packet.name+ " sent out to "+ faceName)
if packet.__class__ is InterestPacket:
self.numberOfInterestPacket+=1
else:
self.numberOfDataPacket+=1
def wrapper_debug(*args, **kwargs):
args_repr = [repr(a) for a in args] # 1
#kwargs_repr = [f"{k}={v!r}" for k, v in kwargs.items()] # 2
#signature = ", ".join(args_repr + kwargs_repr) # 3
#print(f"Calling {func.__name__}({signature})")
logging.debug("====>calling function " + func.__name__)
# print ("====>calling function " + func.__name__ )
value = func(*args, **kwargs)
logging.debug(" ")
# print ( " ")
#print(f"{func.__name__!r} returned {value!r}") # 4
return value
def forwardDataPacketNoCache(self, dataPacket, faceName):
self.residualPower -= 1
interestName = dataPacket.name
if self.pit.__contains__(interestName):
table = self.pit[interestName]
ntable = []
for array in table:
if array[1] == faceName and self.getFreshness(dataPacket) > array[2]:
logging.debug(self.name + ": data packet " + dataPacket.name + " forwarded to " + array[0])
self.sendOut(dataPacket, array[0])
else:
ntable.append(array)
if ntable == []:
self.pit.pop(interestName)
else:
self.pit[interestName] = ntable
def processIncomingPackets(self):
for faceName, face in self.inputFaces.items():
self.facesFlags[faceName] = False
for faceName, face in self.inputFaces.items():
#logging.debug(self.name + " -- " + faceName + " " + str(face))
packet = face.popleft()
if packet != "0":
self.inputLoad += 1
if packet.__class__ is DataPacket: # it is data
if packet.name == self.interestName:
logging.debug(
self.name +
" : my data Recieved ****") # it must be changed
now = time.timeInSeconds
self.totalWaitingTime += now - self.lastRequestTimeInsec
self.numberOfresponses += 1
else:
self.forwardDataPacket(packet, faceName)
else:
self.forwardInterestPacket(packet, faceName)
def forwardInterestPacket(self, interestPacket, faceName):
self.residualPower -= 1
interestName = interestPacket.name
outgoingFaceName = self.fib[interestName]
if self.cs.__contains__(interestName) and interestPacket.freshness < self.getFreshness(self.cs[interestName]['packet']):
logging.debug(self.name + ": sending interest packet " + interestPacket.name + " back from cs (CACHE HIT!)")
print (self.name + ": sending interest packet " + interestPacket.name + " " + str(self.getFreshness(self.cs[interestName]['packet'])) + " back from cs (CACHE HIT!)")
self.sendOut(self.cs[interestName]['packet'], faceName)
self.cs[interestName]['lastAccess'] = time.timeInSeconds
self.cs[interestName]['hitRatio'] += 1
self.cacheHit += 1
# we must forward interest
elif self.pit.__contains__(interestName):
containsEntryFlag = False
table = self.pit[interestName]
self.cacheMiss += 1
for array in table:
if array[0] == faceName and array[1] == outgoingFaceName:
containsEntryFlag = True
if not containsEntryFlag:
table.append([faceName, outgoingFaceName, interestPacket.freshness])
# it is forward
logging.debug(self.name + ": forward interest packet " + interestPacket.name + " to " + outgoingFaceName)
print (self.name + ": forward interest packet " + interestPacket.name + " to " + outgoingFaceName + " pit contains")
self.sendOut(interestPacket, outgoingFaceName)
else:
# it is forward
self.cacheMiss += 1
logging.debug(self.name + ": forward interest packet " + interestPacket.name + " to " + outgoingFaceName)
print (
self.name + ": forward interest packet " + interestPacket.name + " to " + outgoingFaceName + " pit doesn't contain")
self.sendOut(interestPacket, outgoingFaceName)
self.pit[interestName] = []
self.pit[interestName].append([faceName, outgoingFaceName, interestPacket.freshness])
def forwardDataPacketPathCache(self, dataPacket, faceName):
self.residualPower -= 1
interestName = dataPacket.name
if self.pit.__contains__(interestName):
table = self.pit[interestName]
ntable = []
for array in table:
if array[1] == faceName and self.getFreshness(dataPacket) > array[2]:
logging.debug(self.name + ": data packet " + dataPacket.name + " forwarded to " + array[0])
self.sendOut(dataPacket, array[0])
else:
ntable.append(array)
if ntable == []:
self.pit.pop(interestName)
else:
self.pit[interestName] = ntable
fu = float(self.residualCacheSize)/dataPacket.pathCache
probability = int ( fu * 100)
rand = random.randint(0, 100)
print "fu: " , fu , " probability: " , probability , " rand: " , rand , " dataPacket.pathCache: " , dataPacket.pathCache
if rand < probability:
self.cacheManagementByFrequency(dataPacket)
def requestGenerator(self): # this function needs to get time of the day!
lr = self.lastRequestTime
if self.lastRequestTime == None:
rand = random.randint(5, 50)
if timeComparator("00:00:" + str(rand)) == -1:
npacket = InterestPacket(self.interestName, 0.5,
time.timeInSeconds)
self.sendRequest(npacket)
self.lastRequestTime = getTime()
self.lastRequestTimeInsec = time.timeInSeconds
rand = random.randint(20, 60)
self.nextRequestTime = addTime(rand, getTime(), 1)
else:
if timeComparator(self.nextRequestTime) == -1:
npacket = InterestPacket(self.interestName, 0.5,
time.timeInSeconds)
self.sendRequest(npacket)
self.lastRequestTime = getTime()
self.lastRequestTimeInsec = time.timeInSeconds
rand = random.randint(20, 60)
self.nextRequestTime = addTime(rand, getTime(), 1)
if lr != self.lastRequestTime:
logging.debug(self.name + " " + self.lastRequestTime)
def simulationLoop(self):
while True:
logging.debug("------------------ countLoop: " + str(self.countLoop) + "-------------------------------" )
print ("------------------ countLoop: " + str(self.countLoop) + "-------------------------------" )
self.countLoop+=1
plusSimulationTime()
for name , node in self.allNodes.items():
node.processIncomingPacketsPathCache()
for name , node in self.allNodes.items():
#print (node.__class__)
if node.__class__ is Producer:
node.updateState()
else:
node.requestGenerator()
for name , node in self.allNodes.items():
node.processOutgoingpackets()
# for name , node in self.allNodes.items():
# print name ," residual power: ", node.residualPower
terminate = False
for name , node in self.allNodes.items():
if node.residualPower <=0:
terminate = True
if terminate :
break
if self.countLoop > 1000:
break
print "---------------------------------"
print "final loop count :" , self.countLoop
print "------Power------"
sum = 0
for name, node in self.allNodes.items():
sum += node.residualPower
mid = sum/self.allNodes.__len__()
print "mid residual power :" , mid
print "------Latancy------"
for name , node in self.consumers.items():
latancy = node.totalWaitingTime / node.numberOfresponses
self.midLatency += latancy
print name , " avg latancy: " , latancy
self.midLatency/= self.consumers.__len__()
print "mid latancy: " , self.midLatency
print "------Cache Hit------"
for name , node in self.allNodes.items():
if node.cacheHit + node.cacheMiss != 0:
cacheHit = float(node.cacheHit)/(node.cacheHit + node.cacheMiss)
else:
cacheHit = 0
print name , " : cacheHit:" , node.cacheHit ," cacheMiss: ", node.cacheMiss ," Real cache hit: " , cacheHit
self.totalCache +=node.cacheHit + node.cacheMiss
self.totalCacheHit += node.cacheHit
print "total Cache hit = " , (float(self.totalCacheHit) / self.totalCache)/ self.allNodes.__len__()
print "------#Packets------"
for name , node in self.allNodes.items():
print name ," #interest: " , node.numberOfInterestPacket , " #dataPacket: " , node.numberOfDataPacket
self.totalPackets+= node.numberOfDataPacket + node.numberOfInterestPacket
print "total #packets: " , self.totalPackets
for name, node in self.allNodes.items():
if node.inputLoad > self.maxLoad:
self.maxLoad = node.inputLoad
self.avgLoad+= node.inputLoad
print "max Input load: " , self.maxLoad , "avg Input load: " , self.avgLoad/self.allNodes.__len__()