def __init__(self):
Process.__init__(self, {'parent' : None, 'name' : 'root', 'priority' : configs.ROOT_PRIORITY })
# init kernel
kernel_data.BLOCKED_PROCESSES = ProcessQueue()
kernel_data.READY_PROCESSES = ProcessQueue()
kernel_data.RESOURCES = ResourceList()
kernel_data.ACTIVE_PROCESS = self
# create static resources
for resource in [InputDevice, OutputDevice, UserMemory, ExternalMemory,
Terminate, EnoughSpace, Channel3, Channel1, Channel2, KernelMemory]:
kernel.create_resource(resource, self)
# create dynamic resources
# for that many files in tasks folder create task_at_input resource
counter = 0
for file in os.listdir('tasks'):
kernel.create_resource(TaskAtInput, self, {'file_path' : 'tasks/' + str(file) })
counter += 1
# create child processes
for process in [Interrupt, Print]:
kernel.create_process(process, self)
#create resources if there are tasks to execute
if kernel_data.RESOURCES.is_instance_created(TaskAtInput):
for process in [Read, ParseTask, JobToDisk, JobToMem, Manager]:
kernel.create_process(process, self)
# create tasks_found resource
if counter != 0:
kernel.create_resource(TasksFound, self, {'count' : counter})
def __init__(self, opts = {}):
opts['name'] = 'vm_' + str(kernel_data.PID)
opts['priority'] = configs.LOADER_PRIORITY
Process.__init__(self, opts)
self.cs_length = opts['cs_length']
self.ds_length = opts['ds_length']
self.addresses = opts['addresses']
# state
self.ic = None
self.num = self.ds_length + 1 # skip DATA SEGMENT
# prepare DS
for i in range(1, self.ds_length):
data = user_memory.fetch(self.addresses[i])
if data[0:2] != "DW":
processor.pi = 2
kernel.create_resource(InterruptEvent, self, {'process' : self })
else:
user_memory.write(to_hex(to_int(data[2:4])), self.addresses[i])
def __init__(self, opts={}):
opts['name'] = 'vm_' + str(kernel_data.PID)
opts['priority'] = configs.LOADER_PRIORITY
Process.__init__(self, opts)
self.cs_length = opts['cs_length']
self.ds_length = opts['ds_length']
self.addresses = opts['addresses']
# state
self.ic = None
self.num = self.ds_length + 1 # skip DATA SEGMENT
# prepare DS
for i in range(1, self.ds_length):
data = user_memory.fetch(self.addresses[i])
if data[0:2] != "DW":
processor.pi = 2
kernel.create_resource(InterruptEvent, self, {'process': self})
else:
user_memory.write(to_hex(to_int(data[2:4])), self.addresses[i])
def __init__(self, opts={}):
opts['name'] = 'job_to_disk_' + str(kernel_data.PID)
opts['priority'] = configs.LOADER_PRIORITY
Process.__init__(self, opts)
def __init__(self, opts = {}):
opts['name'] = 'read_' + str(kernel_data.PID)
opts['priority'] = configs.LOADER_PRIORITY
Process.__init__(self, opts)
def __init__(self, opts={}):
opts['name'] = 'print_' + str(kernel_data.PID)
opts['priority'] = configs.PRINT_PRIORITY
Process.__init__(self, opts)
def __init__(self, opts = {}):
opts['name'] = 'interrupt_' + str(kernel_data.PID)
opts['priority'] = configs.INTERRUPT_PRIORITY
Process.__init__(self, opts)
def __init__(self, opts={}):
opts['name'] = 'interrupt_' + str(kernel_data.PID)
opts['priority'] = configs.INTERRUPT_PRIORITY
Process.__init__(self, opts)
def __init__(self, opts = {}):
opts['name'] = 'print_' + str(kernel_data.PID)
opts['priority'] = configs.PRINT_PRIORITY
Process.__init__(self, opts)