如何保证在c ++中进程退出或被杀死时执行某些代码？

Question

Could anyone tell me how to ensure some code in my program gets executed when its process exits or gets killed?

The destroyer only gets called when it exits normally. But I want my code get executed when it's killed by a system shutdown or task manager.

The platform is Windows and I don't mind using platform specific code if it's needed.

Answer 1

You can't. What if the user pulls out the power cord?

Answer 2

Ending a task from Task Manager or from a Windows shutdown will both give the process a chance to shutdown gracefully by sending messages such as WM_CLOSE , which you can use to close down your process gracefully. However, as per @immibis answer, there are scenarios where this cannot be guaranteed.

Answer 3

假设程序正在以或多或少的控制方式崩溃，也许atexit是最好的选择