Re: Thread deadlock misery

From:
"Ben Voigt" <rbv@nospam.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Tue, 13 Mar 2007 12:52:43 -0500
Message-ID:
<elsJ1gZZHHA.5080@TK2MSFTNGP04.phx.gbl>
"PaulH" <paul.heil@gmail.com> wrote in message
news:1173805200.294745.94950@q40g2000cwq.googlegroups.com...

I use the AtlCreateThread() call to create the thread. That's why it's
declared that way. If you still think it's wrong, let me know.

static DWORD WINAPI TransmitThread( TTCB* TFP );
m_hTransmitThread = AtlCreateThread( TransmitThread, pTFP );

From ATLBASE.H:

template <typename T>
HANDLE AtlCreateThread(DWORD (WINAPI* pfn)(T *pparam), T *pparam)
{
return CreateThreadT(0, 0, pfn, pparam, 0, 0);
}
template <typename T>
HANDLE CreateThreadT(LPSECURITY_ATTRIBUTES lpsa, DWORD dwStackSize,
DWORD (WINAPI * pfn)(T *pparam),
T *pparam, DWORD dwCreationFlags, LPDWORD pdw)
{
return DefaultThreadTraits::CreateThread(lpsa,
dwStackSize,
(LPTHREAD_START_ROUTINE)pfn,


Yes, this is evil. Don't use it. The only thing you can do with a cast of
a function pointer is cast it back, but CreateThread is going to call it.

pparam,
dwCreationFlags,
pdw);
}

This is the only thread I have that uses the WSA API, so I found it
convenient to put the WSAStartup() and WSACleanup() calls in here.


Ok, good enough. I assumed the corresponding receive thread also used
sockets.

BOOL m_bRunning does need to be volatile, thank you.

Why is sizeof(SOCKADDR) meaningless? DUTAddr->ai_addr is a SOCKADDR*.
The parameter wants to know what size the address pointer is. What do
you recommend I use?


SOCKADDR is assumed to be an incomplete type. The actual buffer will be a
sockaddr_in or sockaddr_in6 or sockaddr_unix or etc.

I think you and alexander may have hit on my problem: dwSleepTime will
never be 0... I'm going to investigate that issue now.

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