python 多线程优先队列Queue
发布时间:2020-12-17 17:20:10 所属栏目:Python 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 Queue模块允许创建指定长度的队列. 下面是Queue模块的常用方法: get():删除并返回队列中的一个项目 put(): 添加项目到队列 qsize() : 返回队列中元素
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考
Queue模块允许创建指定长度的队列. 下面是Queue模块的常用方法:
get():删除并返回队列中的一个项目 put(): 添加项目到队列 qsize() : 返回队列中元素的个数 empty(): 队列为空返回True否则返回False full(): 队列已满返回True,负责返回False #!/usr/bin/python import Queue import threading import time exitFlag = 0 class myThread (threading.Thread): def __init__(self,threadID,name,q): threading.Thread.__init__(self) self.threadID = threadID self.name = name self.q = q def run(self): print "Starting " + self.name process_data(self.name,self.q) print "Exiting " + self.name def process_data(threadName,q): while not exitFlag: queueLock.acquire() if not workQueue.empty(): data = q.get() queueLock.release() print "%s processing %s" % (threadName,data) else: queueLock.release() time.sleep(1) threadList = ["Thread-1","Thread-2","Thread-3"] nameList = ["One","Two","Three","Four","Five"] queueLock = threading.Lock() workQueue = Queue.Queue(10) threads = [] threadID = 1 # Create new threads for tName in threadList: thread = myThread(threadID,tName,workQueue) thread.start() threads.append(thread) threadID += 1 # Fill the queue queueLock.acquire() for word in nameList: workQueue.put(word) queueLock.release() # Wait for queue to empty while not workQueue.empty(): pass # Notify threads it's time to exit exitFlag = 1 # Wait for all threads to complete for t in threads: t.join() print "Exiting Main Thread" 输出结果如下: Starting Thread-1 Starting Thread-2 Starting Thread-3 Thread-1 processing One Thread-2 processing Two Thread-3 processing Three Thread-1 processing Four Thread-2 processing Five Exiting Thread-3 Exiting Thread-1 Exiting Thread-2 Exiting Main Thread 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |