lock_con=threading.Condition([Lock/Rlock]): 锁是可选选项,不传人锁,对象自动创建一个RLock()。 wait():条件不满足时调用,线程会释放锁并进入等待阻塞; notify():条件创造后调用,通知等待池激活一个线程; notifyAll():条件创造后调用,通知等待池激活所有线程。 实例代码: importthreading,timefromrandomimportra...
class Consumer(threading.Thread): def run(self): global products while True: with condition: if not products: # 如果仓库为空,则等待 print("仓库为空,消费者等待...") condition.wait() # 消费者等待 else: product = products.pop(0) print(f"消费了产品 {product}, 当前库存: {len(products)}...
self.condition.notify_all()finally:# 释放锁 self.condition.release()# 存钱 defdeposit(self,deposit_amount):# 加锁 self.condition.acquire()try:# 如果已经存款了,则等待取款ifself.__deposit_flag:self.condition.wait()else:self._balance=self._balance+deposit_amountprint(threading.current_thread().g...
condLock = threading.Condition() for i in range(maxSubThreadNumber): subThreadIns = threading.Thread(target=task) subThreadIns.start() while currentRunThreadNumber < maxSubThreadNumber: notifyNumber = int( input("Please enter the number of threads that need to be notified to run:")) with ...
notify() # 释放锁 cndition.release() if __name__ == '__main__': cndition = threading.Condition() t1 = threading.Thread(target=fun, args=(cndition,)) t2 = threading.Thread(target=fun2, args=(cndition,)) t1.start() t2.start() 结果: thread2 acquires lock. thread1 acquires ...
Condition类是用来处理复杂线程的同步问题的。 __init__(self, lock=None) 初始化时候可以传入一个Lock对象,或者默认会生成一个RLock对象。 Condition提供了Lock类中的acquire()方法和release()方法 notify(self, n=1) 唤醒n个等待的线程 notify_all(self) 唤醒所有等待的线程 ...
con.notify()#完成生成后唤醒waiting状态的线程,#从waiting池中挑选一个线程,通知其调用acquire方法尝试取到锁con.release() time.sleep(1) count= 500con=threading.Condition()deftest():foriinrange(2): p=Producer() p.start()foriinrange(5): ...
threading.Semaphore(1)defincrease_counter():global counterwith counter_semaphore: counter += 1# 使用 Condition 实现线程同步counter = counter_condition = threading.Condition()defincrease_counter():global counterwith counter_condition: counter += 1 counter_condition.notify_all()上面代码中,使用...
python threading 是否完成 python threading condition,Condition的处理流程如下:首先acquire一个条件变量,然后判断一些条件。如果条件不满足则wait;如果条件满足,进行一些处理改变条件后,通过notify方法通知其他线程,其他处于wait状态的线程接到通知后会重新判断条
Python 提供两个模块进行多线程的操作,分别是thread和threading 前者是比较低级的模块,用于更底层的操作,一般应用级别的开发不常用。 因此,我们使用threading来举个例子: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importtimeimportthreadingclassMyThread(threading.Thread):defrun(self):foriinrange(5):print...