Process.py

class Process:
	def __init__(self, state, proc_id, arrival_time, cpu_burst_time, num_bursts, io_time):
		'''
		state will be 'READY' or 'RUNNING' or 'BLOCKED'
		'''
		self.state = state
		self.id = proc_id
		self.arrival_time = arrival_time
		self.cpu_burst_time = cpu_burst_time
		self.num_bursts = num_bursts
		self.io_time = io_time
		'''
		calculated parameters
		'''
		self.cpu_comp_time = self.cpu_burst_time
		self.wait_time = 0
		self.turnaround_time = self.cpu_burst_time + self.wait_time
	def __cmp__(self, other):
		if self.cpu_burst_time > other.cpu_burst_time:
			return 1
		elif self.cpu_burst_time < other.cpu_burst_time:
			return -1
		else:
			if self.io_time > other.io_time:
				return 1
			elif self.io_time < other.io_time:
				return -1
			else:
				if self.arrival_time > other.arrival_time:
					return 1
				elif self.arrival_time < other.arrival_time:
					return -1
				else:
					return cmp(self.proc_id, other.proc_id)
	def update_wait_time(self,time):
		self.wait_time += time
	def update_cpu_completion_time(self,time):
		self.cpu_comp_time -= time
	def update_num_bursts(self):
		self.num_bursts -= 1
	def get_cpu_burst_time(self):
		return self.cpu_burst_time
	def get_cpu_completion_time(self):
		return self.cpu_comp_time
	def get_wait_time(self):
		return self.wait_time
	def get_turnaround_time(self):
		return self.turnaround_time