Python SocketServer多线程同步实现指南

#coding=gbk
__author__ = 'kaikai'

import Queue
import threading
import time
import SocketServer

#全局线程锁
threadLock = threading.Lock()#全局数据队列
data = Queue.Queue()
#工作线程类，
class testThead(threading.Thread):
  global data
 def __init__(self):
    threading.Thread.__init__(self)

  def begin_test(self):
    self.start()

  def run(self):
    global threadLock
    
    threadLock.acquire()

    # 从队列中取出连接和数据
    if data.qsize()>0:
      this_receive = data.get()
    else:
      print "data size is empty !"
      return

    # 解析数据，获得连接和数据
    # 使用当前数据的conn
    this_conn = this_receive.keys()[0]
    this_data = this_receive[this_conn]

    # 释放锁
    threadLock.release()

  def send_msg(self,conn,msg):
    try:
      conn.sendall(msg)
    except Exception as e:
      print "send " + str(msg) +"fail !!!!!!!!!!!!!!"

  def recv_msg(self,conn):
    try:
      recv_msg = conn.recv(2048)
      return recv_msg
    except Exception as e:

      print " recv msg fail !!!!!!!!!!"
      return None

# 每有一个客户端生成一个线程。所有线程调用同一个测试线程，如果测试线程在锁定中，则进入等待。
class MyServer(SocketServer.BaseRequestHandler):

  def send_msg(self,conn,msg):
    try:
      conn.sendall(msg)
    except Exception as e:
      print "send " + str(msg) +"fail !!!!!!!!!!!!!!"
  def recv_msg(self,conn):
    try:
      recv_msg = conn.recv(2048)
      return recv_msg
    except Exception as e:

      print " recv msg fail !!!!!!!!!!"

  def handle(self):
    global data
    # 获得连接
    conn = self.request

    print "client connect!"

    # 循环接受客户端数据
    while True:
      # 接受客户端发送过来的参数
      receive_data = self.recv_msg(conn)

      print receive_data
      # 如果参数为空，返回报错 结束循环
      if not receive_data:
        print "can not get data form client ! "
        break

      print "data size put before: " + str(data.qsize())
      # 将连接和数据添加到队列中 放入连接可以保证在另一个线程中直接使用连接给相应客户端发送或者接受数据。同时保证数据与客户端的一一对应
      data.put({conn:receive_data})

      print "data size put aftter: " + str(data.qsize())
      # 初始化测试线程
      testThead_this = testThead()
      # 开始测试线程
      testThead_this.begin_test()
      # testThead_this.start()
      # 等待测试线程执行结束
      testThead_this.join()

      print "this test end "

if __name__ == "__main__" :
  try:
    server = SocketServer.ThreadingTCPServer(('192.168.100.100',56780),MyServer)
    server.timeout = 100
    print "Server run success !!!! "

    server.serve_forever()

  except Exception as e:
    print "Server run failed !!!!\n  error: " + str(e)