学完线程,摸索着写了个线程池,有待完善

首先是工作线程类

import threading

class TaskThread(threading.Thread):
    def __init__(self):
        super(TaskThread,self).__init__()
        self.e = threading.Event()
        self.setDaemon(True)

    def run(self):
        while True:
            try:
                self.task.doAction()
            except Exception,e:
                print e
            finally:
                self.e.clear()
                self.e.wait()
                
    def addTask(self,task):
        self.task = task

然后是线程池类

import threading

from Queue import Queue
from TaskThread import TaskThread

class ThreadPool(object):
    __instance = None
    __lock = threading.Lock()

    def __init__():
        pass

    def __call__(self):
        self.run()

    @classmethod
    def getInstance(self):
        self.__lock.acquire()
        if not self.__instance:
            self.__instance = super(ThreadPool,self).__new__(self)
        self.__lock.release()
        
        return self.__instance

    def initPool(self,pool_max_size = 10,task_queue_size = 100):
        self.pool = []
        self.tasks = Queue(task_queue_size)

        for i in range(pool_max_size):    
            self.pool.append(TaskThread())

    def run(self):
        while True:
            th = None
            
            for t in self.pool:
                if not t.e.isSet():
                    th = t
                    break

            if th is not None:
                try:
                    task = self.tasks.get(0)
                except:
                    pass
                else:
                    th.addTask(task)
                    th.e.set()

                    if not th.isAlive():
                        th.start()
                    
    def addTask(self,task,timeout = 0):
        try:
            self.tasks.put(task,timeout)
            return True
        except:
            return False

粗略的测试了下,没有发现什么问题,只是目前有几个问题比较纠结:
1、要不要把ThreadPool类写成单例,因为照现在写法,继承threading.Thread之后不能start,只能依靠另外起一条线程来执行run方法
2、工作线程类执行绑定方法的时候是直接调用约定方法还是用__call__
3、总觉得目前的设计怪怪的,想继续拆分几个类出来,但又有过度设计之嫌

明天开始研究gui了,初步选定wxPython,哈哈,理我完成"神器"的目标又进一步了...