Re: CWinThread termination

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sun, 29 Jul 2007 18:57:18 -0400

Message-ID:

<6KednSq3VoDJhjDbnZ2dnUVZ_sOrnZ2d@comcast.com>

Tech wrote:

Run Function in the thread derived class looks like:
extern CCriticalSection lock;
//======================
Run()
{
lock.Lock(INFINITE); // lock one thread
// time consuming operation here
lock.Unlock();
AfxEndThread(0,TRUE); // end thread
return 1;
}

I need to terminate this thread via user action while the operation is in
progress. There is no memory allocation, other threads, etc. in the ( //
time consuming operation here )

What would be the best way to do that? TerminateThread? then what do I do
about the lock?

You can use a bool or SetEvent to signal the thread to exit. It should
detect the signal and then exit in the normal way. Something like this...

// time consuming operation here
while (!bThreadExit)
{ ...one step or loop of operation
}
lock.Unlock();
return 1;

You should also get rid of AfxEndThread so the return statement can
perform normal stack allocation cleanup.

--
Scott McPhillips [MVP VC++]