如果重新分配线程对象,是否正在运行的线程可以进行垃圾回收?例如:
class A(threading.Thread) def run(): while True: #Do stuff a = A() a.start() time.sleep(60) a = A()
在这一点上,即使线程A仍然在做东西,解释器可以破坏原始的A()线程吗?如果确实如此,有没有办法防止这种情况发生?
解决方法
我的猜测是否定的.在Python用于跟踪事物的任何结构中仍然存在对线程的引用.我会测试它,但如果它不起作用我会感到惊讶.
编辑检查出来:
#!/usr/bin/env python import threading,time class A(threading.Thread): def __init__(self,name): threading.Thread.__init__(self) self.name=name self.count=0 def run(self): while self.count<10: print self.name,"Running!" time.sleep(1) self.count+=1 a=A("first") a.start() time.sleep(5) a=A("second") a.start()
first Running! first Running! first Running! first Running! first Running! second Running! first Running! second Running! first Running! first Running! second Running! first Running! second Running! first Running! second Running! second Running! second Running! second Running! second Running! second Running!