Calling destructor with kill command

[hvpp]

Hi everybody,

I have to work on a big application. This application consists in several processes.

The processes are launched with a batch file (START command).
When the administrator wants to stop the application, another batch file is launched. It contains KILL commands :
KILL process1
KILL process2
and so on.

It seems that the destructor of each application is not called.

Can someone confirm that last point ? If so, how can I do to detect the end of an application ?

Thanks.

[NMTop40]

A normal kill sends a message to the process - in Windows it is a WM_QUIT message, in console programming it is a signal SIGTERM.

Windows will normally handle the WM_QUIT message, but a SIGTERM has no standard handler and you have to write one.

Actually, I once implemented it by getting the SIGTERM to throw an exception! The main execution caught it because I did try..catch for this exception in main.

A hard kill (-9 in UNIX, or shutting down via Task Manager in NT when it is "not responding") will not send the application a message at all but will shut it down and no code, destructors or otherwise, will be called.


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[hvpp]

Thanks for your reply.

I have another question then. If the application allocates memory during execution, can I suppose that Windows will free automatically the objects allocated when the application will be killed ? If so, I don't have to worry about memory leak problems.

Thanks again.

[NMTop40]

Heap memory is allocated by the heap manager, per-process. When your program shuts down, this memory will be freed automatically (on any operating system, as long as that operating system doesn't have bugs).

I don't know what happens about memory allocated with GlobAlloc (on Windows).


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