def setUp(self):
self.memory = MemoryManager()
self.STS = Scheduler()
self.STS.set_as_fifo()
self.LTS = LTScheduler(self.STS, self.memory)
self.pcb = PCB(0, 2049, None)
self.pcb2 = PCB(0, 1, None)
class Kernel:
def __init__(self, policy_scheduler, hdd, policy_memory):
self._console = Console()
self._hdd = hdd
self._fileSystem = self._hdd.generate_file_system()
self._memoryManager = MemoryManager(self)
self._memoryManager.set_policy(policy_memory)
self._creatorPCB = PCBCreator()
self._scheduler = Scheduler()
self._scheduler.set_policy(policy_scheduler)
policy_memory.set_memory_manager(self._memoryManager)
self._long_term_scheduler = LTScheduler(self._scheduler, self._memoryManager)
self._ioQueue = IOQueue(self._memoryManager, self._scheduler)
self._handler = Handler()
self._lock = Semaphore(0)
self._cpu = CPU(self)
self._ioQueue.start()
def run(self, program_name):
print("Running " + program_name + "...")
program = self._fileSystem.get_program(program_name)
instructions = [item for sublist in (map(lambda x: x.get_data(), program.fetch_blocks())) for item in sublist]
pcb = self._creatorPCB.create_pcb(len(instructions), program, self._memoryManager.get_policy().get_info_holder(program))
self._long_term_scheduler.init_process(pcb)
def handle_this(self, interruption):
self._handler.handle(interruption)
self._lock.release()
def get_memory_manager(self):
return self._memoryManager
def get_scheduler(self):
return self._scheduler
def get_io_queue(self):
return self._ioQueue
def get_lock(self):
return self._lock
def __init__(self, policy_scheduler, hdd, policy_memory):
self._console = Console()
self._hdd = hdd
self._fileSystem = self._hdd.generate_file_system()
self._memoryManager = MemoryManager(self)
self._memoryManager.set_policy(policy_memory)
self._creatorPCB = PCBCreator()
self._scheduler = Scheduler()
self._scheduler.set_policy(policy_scheduler)
policy_memory.set_memory_manager(self._memoryManager)
self._long_term_scheduler = LTScheduler(self._scheduler, self._memoryManager)
self._ioQueue = IOQueue(self._memoryManager, self._scheduler)
self._handler = Handler()
self._lock = Semaphore(0)
self._cpu = CPU(self)
self._ioQueue.start()
class LongTermSchedulerTest(unittest.TestCase):
#Arrange
def setUp(self):
self.memory = MemoryManager()
self.STS = Scheduler()
self.STS.set_as_fifo()
self.LTS = LTScheduler(self.STS, self.memory)
self.pcb = PCB(0, 2049, None)
self.pcb2 = PCB(0, 1, None)
def test_trying_to_init_process_and_it_pass(self):
self.LTS.init_process(self.pcb2)
self.assertEquals(self.LTS.amount_programs_waiting(), 0, "Process SHOULD pass")
def test_trying_to_init_process_and_it_pass(self):
self.LTS.init_process(self.pcb)
self.assertEquals(self.LTS.amount_programs_waiting(), 1, "Process SHOULD NOT pass")
def releasing_process_from_waiting_queue(self):
self.LTS.init_pending_process(2049)
self.assertEquals(self.LTS.amount_programs_waiting(), 0, "Process SHOULD pass")