@Fox said in Как проверить, используются ли данные A в каком-либо потоке?:
I don't see the point in this, I have described to you several solutions to your problem. If you fundamentally need to get the old data in the thread after restarting, use an object in a global variable or a database.
Yeh, I'm waiting for it, I just hope you give me an example of it.