Re: Can CWinThread::SuspendThread suspend yourself?

I'm not sure if this is a generic coding bug (e.g. buffer overflow
somewhere), a violation of a Win32 constraint on SuspendThread, a
violation of an MFC constraint on CWinThread::SuspendThread, or a bug in
Visual Studio 2005's version of MFC or in Windows XP or where.

CWinThread *T = AfxBeginThread(f, p);

UINT f(LPVOID p) {
 // do some stuff
 T->SuspendThread();
 // when someone resumes us, we continue
}

Running in debug mode under control of Visual Studio 2005, about 66% of
the time this runs silently, but about 33% of the time it gets an
exception on an assert in afxwin2.inl, which makes no sense to me. It
seems that m_hThread is non-NULL as it should be, and the assert complains
that a memory read failed at a highly suspicious memory address. The
memory address varies but is always a very small multiple of 4, looking
very suspiciously like a handle value not a memory address, making me
wonder who's trying to read memory there.

While typing this message I observed that __cdecl is missing from the
declaration of f. But Visual Studio 2005 didn't issue any error message
about the call to AfxBeginThread. I don't think I know the real problem
yet.