def constructor(name, startMac, endMac, isGlobal=True, save=True):
self = MacRange()
try:
#Default constructor
EthernetUtils.checkValidMac(startMac)
EthernetUtils.checkValidMac(endMac)
self.startMac = startMac.upper()
self.endMac = endMac.upper()
self.name = name
self.isGlobal = isGlobal
#Create an iterator
it = EthernetUtils.getMacIterator(self.startMac, self.endMac)
self.nextAvailableMac = it.getNextMac()
#Number of Slots
try:
self.numberOfSlots = EthernetUtils.getNumberOfSlotsInRange(
startMac, endMac)
except Exception as e:
print "Exception doing slot calculation" + str(e)
self.numberOfSlots = -1
self.doSave = save
if save:
self.save()
except Exception as e:
print e
raise e
return self
def addExcludedMac(self, macStr, comment=""):
'''
Add an MAC to the exclusion list
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
#Check is not already allocated
if not self.__isMacAvailable(macStr):
raise Exception("Mac already allocated or marked as excluded")
#then forbidd
if not EthernetUtils.isMacInRange(macStr, self.startMac,
self.endMac):
raise Exception("Mac is not in range")
newMac = MacSlot.excludedMacFactory(self, macStr, comment)
self.macs.add(newMac)
#if was nextSlot shift
if self.nextAvailableMac == macStr:
try:
it = EthernetUtils.getMacIterator(self.nextAvailableMac,
self.endMac)
while True:
mac = it.getNextMac()
if self.__isMacAvailable(mac):
break
self.nextAvailableMac = mac
except Exception as e:
self.nextAvailableMac = None
self.autoSave()
def allocateMac(self):
'''
Allocates an MAC address of the range
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
#Implements first fit algorithm
if self.nextAvailableMac == None:
raise Exception("Could not allocate any Mac")
newMac = MacSlot.macFactory(self, self.nextAvailableMac)
self.macs.add(newMac)
#Try to find new slot
try:
it = EthernetUtils.getMacIterator(self.nextAvailableMac,
self.endMac)
while True:
mac = it.getNextMac()
if self.__isMacAvailable(mac):
break
self.nextAvailableMac = mac
except Exception as e:
self.nextAvailableMac = None
self.autoSave()
return newMac
def constructor(name,startMac,endMac,isGlobal=True,save=True): self = MacRange() try: #Default constructor EthernetUtils.checkValidMac(startMac) EthernetUtils.checkValidMac(endMac) self.startMac = startMac.upper() self.endMac = endMac.upper() self.name = name self.isGlobal= isGlobal #Create an iterator it= EthernetUtils.getMacIterator(self.startMac,self.endMac) self.nextAvailableMac = it.getNextMac() #Number of Slots try: self.numberOfSlots = EthernetUtils.getNumberOfSlotsInRange(startMac,endMac) except Exception as e: print "Exception doing slot calculation"+str(e) self.numberOfSlots = -1 self.doSave = save if save: self.save() except Exception as e: print e raise e return self
def addExcludedMac(self,macStr,comment=""):
'''
Add an MAC to the exclusion list
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
#Check is not already allocated
if not self.__isMacAvailable(macStr):
raise Exception("Mac already allocated or marked as excluded")
#then forbidd
if not EthernetUtils.isMacInRange(macStr,self.startMac,self.endMac):
raise Exception("Mac is not in range")
newMac = MacSlot.excludedMacFactory(self,macStr,comment)
self.macs.add(newMac)
#if was nextSlot shift
if self.nextAvailableMac == macStr:
try:
it= EthernetUtils.getMacIterator(self.nextAvailableMac,self.endMac)
while True:
mac = it.getNextMac()
if self.__isMacAvailable(mac):
break
self.nextAvailableMac= mac
except Exception as e:
self.nextAvailableMac = None
self.autoSave()
def allocateMac(self):
'''
Allocates an MAC address of the range
'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
#Implements first fit algorithm
if self.nextAvailableMac == None:
raise Exception("Could not allocate any Mac")
newMac = MacSlot.macFactory(self,self.nextAvailableMac)
self.macs.add(newMac)
#Try to find new slot
try:
it= EthernetUtils.getMacIterator(self.nextAvailableMac,self.endMac)
while True:
mac = it.getNextMac()
if self.__isMacAvailable(mac):
break
self.nextAvailableMac = mac
except Exception as e:
self.nextAvailableMac = None
self.autoSave()
return newMac
def rebasePointer(self):
'''Used when pointer has lost track mostly due to bug #'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
print "Rebasing pointer of range: " + str(self.id)
print "Current pointer point to: " + self.nextAvailableMac
try:
it = EthernetUtils.getMacIterator(self.startMac, self.endMac)
while True:
mac = it.getNextMac()
if self.__isMacAvailable(mac):
break
self.nextAvailableMac = mac
except Exception as e:
self.nextAvailableMac = None
print "Pointer will be rebased to: " + self.nextAvailableMac
self.save()
def rebasePointer(self):
'''Used when pointer has lost track mostly due to bug #'''
with MutexStore.getObjectLock(self.getLockIdentifier()):
print "Rebasing pointer of range: "+str(self.id)
print "Current pointer point to: "+self.nextAvailableMac
try:
it= EthernetUtils.getMacIterator(self.startMac,self.endMac)
while True:
mac = it.getNextMac()
if self.__isMacAvailable(mac):
break
self.nextAvailableMac= mac
except Exception as e:
self.nextAvailableMac = None
print "Pointer will be rebased to: "+self.nextAvailableMac
self.save()
