class Process:
  def __init__(self,pnum,pstate,ptime,pio,ppri):
    self.num = pnum     # an integer
    self.state = pstate # this is a string
    self.time = ptime   # an integer
    self.slice = ptime  # an integer
    self.iotime = pio   # an integer
    self.timetoio = ptime+1   # an integer
    self.pri = ppri     # an integer
    self.twait = 0      # an integer
    self.trun = 0       # an integer
    self.history = []   # a sequence
  
  def __str__(self):
    s = "(%d: %s, time:%d io:%d slice:%d wait:%d run:%d)" % \
         (self.num,self.state,self.time,self.iotime,self.slice,\
          self.twait,self.trun)
    s = s + "\n  " + str(self.history)
    return s
  
  def statechange(self,t,s):
    self.state = s
    self.history.append((t,s))
  def tick(self):
    if self.state == 'running':
      self.time = self.time - 1
      self.slice = self.slice - 1
      self.timetoio = self.timetoio - 1
      self.trun = self.trun + 1
    elif self.state == 'ready':
      self.twait = self.twait + 1
  

class ProcessTable:
  def __init__(self):
    self.pt = {}
  def __str__(self):
    keylist = self.pt.keys()
    s = ""
    for i in keylist:
      s = s + str(self.pt[i]) + "\n"
    return s
PT = ProcessTable()
def ProcessCreate(pnum,ptime,pio,ppri):
  global ProcessTable
  newProc = Process(pnum,'created',ptime,pio,ppri)
  PT.pt[pnum] = newProc
  return newProc
def tick():
  global ProcessTable
  keylist = PT.pt.keys()
  for i in keylist:
    PT.pt[i].tick()
  return
def ProcessTablePrint():
  global ProcessTable
  keylist = PT.pt.keys()
  for i in keylist:
    print "process",i,PT.pt[i]
  return