iam*_*der 2 python python-multithreading
问题是我想杀死当前正在运行的所有线程。例如,我有一个调用 for 循环的按钮。突然间我想阻止它。
这是我的代码:
class WorkerThread(threading.Thread):
def __init__(self,t,*args):
super(WorkerThread,self).__init__(target=t,args=(args[0],args[3]))
self.start()
self.join()
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我的实现:
def running(fileopen,methodRun):
#....long task of code are here...
for file in fileTarget:
threads.append(WorkerThread(running,file,count,len(fileTarget),"FindHeader"))
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永远不要试图突然终止一个线程。而是在您的WorkerThread班级中设置一个标志/信号,然后当您希望它停止时,只需设置标志并使线程自行完成即可。
此外,您对如何将threading.Thread. 如果您决定将函数作为线程运行,它应该是:
thread = threading.Thread(target=my_func, args=(arg1, arg2...))
thread.start()
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好吧,在您的情况下,这不适合您的需求,因为您希望线程在请求时停止。所以现在让我们子类threading.Thread,基本上__init__就像python中的构造函数,每次创建实例时它都会被执行。并且您立即start()使用线程然后将其阻塞join(),它在您的 for 循环中所做的threads.append(WorkerThread(running,file,count,len(fileTarget),"FindHeader"))将阻塞直到running完成结束,file然后继续使用另一个file线程,没有使用实际的线程。
你应该把你的running(fileopen,methodRun)进入run():
class WorkerThread(threading.Thread):
def __init__(self,*args):
super(WorkerThread,self).__init__()
self.arg_0 = arg[0]
self.arg_1 = arg[1]
...
self.stop = False
def run(self):
# now self.arg_0 is fileopen, and self.arg_1 is methodRun
# move your running function here
#....long task of code are here...
Try to do self.stop check every small interval, e.g.
...
if self.stop:
return
...
for file in fileTarget:
new_thread = WorkerThread(file, count, len(fileTarget), "FindHeader"))
new_thread.start()
threads.append(new_thread)
# Stop these threads
for thread in threads:
thread.stop = True
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