def fifo(self):
'''
@return: a FIFO kernel
'''
self.imanager = InterruptorManager()
self.cpu = CPU(self.ram, self.imanager, self.condition, self.mmu)
self.queue = OwnQueue(self.condition)
self.scheduler = Scheduler(self.cpu, self.queue, -1, self.condition)
return self.__build(self.queue, self.scheduler)
def withPriority(self):
'''
@return: a Priority kernel
'''
self.imanager = InterruptorManager()
self.cpu = CPU(self.ram, self.imanager, self.condition, self.mmu)
self.func = lambda pcb1, pcb2: pcb1.getPriority() >= pcb2.getPriority()
self.queue = OwnHeap(self.condition, self.func)
self.scheduler = Scheduler(self.cpu, self.queue, -1, self.condition)
return self.__build(self.queue, self.scheduler)
def roundRobin(self, quantum):
'''
@return: given a <quantum>, returns a Round Robbin configured kernel, with quantum <quantum>
'''
self.imanager = InterruptorManager()
self.cpu = CPU(self.ram, self.imanager, self.condition, self.mmu)
self.queue = OwnQueue(self.condition)
self.scheduler = Scheduler(self.cpu, self.queue, quantum,
self.condition)
return self.__build(self.queue, self.scheduler)
def roundRobin_withPriority(self, quantum):
'''
@return: given a <quantum> it returns a Priority-RR kernel with quantum <quantum>
'''
self.imanager = InterruptorManager()
self.cpu = CPU(self.ram, self.imanager, self.condition, self.mmu)
self.func = lambda pcb1, pcb2: pcb1.getPriority() >= pcb2.getPriority()
self.queue = OwnHeap(self.condition, self.func)
self.scheduler = Scheduler(self.cpu, self.queue, quantum,
self.condition)
return self.__build(self.queue, self.scheduler)
def setUp(self):
self.scheduler = Mock()
self.cpu = Mock()
self.disco = Mock()
self.condition = Mock()
self.pcbTable = Mock()
self.iodelivery = Mock()
self.ram = Mock()
self.aPCB = Mock()
when(self.pcbTable).getPCB(0).thenReturn(self.aPCB)
self.cod = 4
self.data = [self.aPCB, self.cod]
self.imanager = InterruptorManager(self.ram, self.scheduler,
self.disco, self.iodelivery,
self.condition, self.pcbTable)
def setUp(self):
# miscellaneous
self.semaphore = Condition()
self.disk = HardDisk()
self.comparator = lambda pcb1, pcb2: pcb1.getPriority() > pcb2.getPriority() # the greater, the better
self.readyQueue = OwnHeap(self.semaphore, self.comparator)
# hardware
self.memory = RAM(1000)
self.mmu = MMU(1,self.memory)
self.ioDelivery = IODelivery()
self.progLoader = ProgramLoader(self.memory, self.disk, self.readyQueue,self.mmu)
self.imanager = InterruptorManager()
self.cpu = CPU(self.memory, self.imanager, self.semaphore,self.mmu)
self.scheduler = Scheduler(self.cpu, self.readyQueue , 5, self.semaphore)
# devices
self.spooler = Device('printer', self.imanager)
self.screen = Device('screen', self.imanager)
self.ioDelivery.newDevice(self.spooler)
self.ioDelivery.newDevice(self.screen)
# im
self.imanager.setScheduler(self.scheduler)
self.imanager.setDisk(self.disk)
self.imanager.setMmu(self.mmu)
self.imanager.setIODelivery(self.ioDelivery)
# loading programs
self.ioInstruction = InstIO('directory', 0)
self.cpuInstruction = InstCPU('1+1')
self.prog1 = Program('ls')
self.prog2 = Program('pwd')
self.prog1.addInstruction(self.cpuInstruction)
self.prog2.addInstruction(self.ioInstruction)
self.disk.setProgram(self.prog1)
self.disk.setProgram(self.prog2)
