通过清理杀死子进程

Question

是否有办法杀死我的应用程序的子进程并执行其清理（调用解构函数和atexit函数），类似于exit(exit_code) ，但是在另一个进程上呢？

Answer 1

If you are on windows, you probably start your child processes by CreateProcess, which has a PROCESS_INFORMATION as the last parameter.

CreateProcess on MSDN

Process Information on MSDN

Option 1:

This process information contains a handle to the process started in the hProcess member.

You can store this handle and use it to kill your child processes.

Insert You probably want to send WM_CLOSE and / or WM_QUIT? to "cleanly" end the process:

Here is a KB Article on what to do KB how to cleanly kill win32 processes

** End Insert**

Option 2:

Here is an discussion on how to properly kill a process tree: Terminate a process tree on windows

Answer 2

There's no simple Win32 API for that kind of thing. The OS doesn't care what language your program's source code was written in, the compiled program appears to it as just a sequence of CPU instructions plus data.

The cleanest way would be to establish some kind of a communication channel between the processes (eg via shared memory) and simply request process termination.

You can achieve the same by starting the child process as a debugged process and then using debug APIs to alter the child's behavior, but that's too intrusive and not very straightforward to implement.