import psutil
p = psutil.Process(pid)
p.suspend()  #掛起進(jìn)程
p.resume()  #恢復(fù)進(jìn)程

Process:
import threading
from time import ctime, sleep
import ThreadInReadAndWriteProblem
import multiprocessing
import os
class Process(multiprocessing.Process):  
  def __init__(self):
    multiprocessing.Process.__init__(self) #手動(dòng)實(shí)現(xiàn)父類
    pid = os.getpid()
  def run(self):
    print '當(dāng)前運(yùn)行進(jìn)程PID : %s ' %self.pid  #子線程的id與父進(jìn)程的pid相同 屬于 同一個(gè)進(jìn)程
    for i in range(0,5):
      r = ThreadInReadAndWriteProblem.Reader()
      w = ThreadInReadAndWriteProblem.Writer()
      w.start()
      r.start()
 print '進(jìn)程阻塞'
    sleep(10)  #總共運(yùn)行時(shí)間10秒
Reader&Writer
import threading
from time import ctime, sleep
import os
mutex = threading.Lock()  #互斥鎖 
mutex_readercount = threading.Lock() #計(jì)數(shù)時(shí)的互斥 計(jì)算當(dāng)前正在讀的數(shù)目
readerCount = 0 number = 0
#不滿足條件的 進(jìn)入阻塞狀態(tài)
class Reader(threading.Thread):    #讀者
  def __init__(self):
    threading.Thread.__init__(self) #繼承父類構(gòu)造函數(shù)
  def run(self):
    global mutex
    global readerCount
    #print '線程PID: %s ' %os.getpid()
    while True:
       mutex_readercount.acquire()
       readerCount +=1
       if readerCount == 1:
         print '讀者進(jìn)程等待中，編號(hào)%s' %(self.name)
         mutex.acquire() == False   # 第一個(gè)需要申請(qǐng)
       mutex_readercount.release()
       print '開始讀 , 讀者編號(hào) %s ,現(xiàn)在時(shí)間是 %s' %(self.name,ctime())
       sleep(2)
       print '完成讀 , 讀者編號(hào) %s , 現(xiàn)在時(shí)間是 %s' %(self.name,ctime())
       mutex_readercount.acquire()
       readerCount -= 1
       if readerCount == 0:  #所有讀者均完成
          print '最后一個(gè)讀者完成讀 '
          mutex.release()
       mutex_readercount.release()
class Writer(threading.Thread):   #寫者
  def __init__(self):
    threading.Thread.__init__(self)
  def run(self):
    global mutex
    global writerCount
    #print '線程PID： %s' %os.getpid()
    while True:
      print '寫者進(jìn)程等待中 編號(hào)： %s' %(self.name)
      mutex.acquire()       
      print '開始寫 編號(hào)：%s 現(xiàn)在時(shí)間是： %s ' %(self.name,ctime())
      sleep(5)
      print '結(jié)束寫 編號(hào): %s 現(xiàn)在時(shí)間是 %s' %(self.name,ctime())
      mutex.release()

import ThreadInReadAndWriteProblem
import SingleProcessSchedulerMultiprocess
import psutil
import Scheduler
from time import ctime, sleep
def main():
  p = SingleProcessSchedulerMultiprocess.Process()
  p.start()
  sleep(3)
  stop(p.pid)
  print '進(jìn)程掛起 %s' %ctime()
  sleep(5)
  wake(p.pid)
  print '喚醒進(jìn)程 %s' %ctime()
def stop(pid):
    print '進(jìn)程暫停 進(jìn)程編號(hào) %s ' %(pid)
    p = psutil.Process(pid)
    p.suspend()
def wake(pid):
    print '進(jìn)程恢復(fù) 進(jìn)程編號(hào) %s ' %(pid)
    p = psutil.Process(pid)
    p.resume()
if __name__ == '__main__':
  main()