Re: WinSock SendData -> unknown Exception
On Feb 18, 4:31 pm, Joseph M. Newcomer <newco...@flounder.com> wrote:
It turns out that the timeSetEvent documentation does not say that the cal=
lback occurs in
a separate thread. This is a documentation failure, because the callbac=
k really is called
in a separate thread.
=
joe
On Mon, 18 Feb 2008 04:08:00 -0800 (PST), clinisbut <clinis...@gmail.com> =
wrote:
On Feb 16, 2:00 am, Joseph M. Newcomer <newco...@flounder.com> wrote:
I question the fundamental decision to use an ActiveX control to do som=
ething as simple as
socket handling. I believe the control does synchronous I/O.
Yeah, sure! but does another issue...
Could you report ALL the values of the COleDispatchException object? =
Most especially the
m_wCode.
m_wCode = 0
I think that's the only value I've left behind.
I'm having another trouble and is happening when I call the same
function from a multimedia timer. But this time I'm getting a "First
chance exception in XXX.exe (MSWINSCK.OCX): 0xC0000005: Access
Violation".
I think it has to do with the variant type. Debugging this last error,
I found that program crashes in function (called automatically from
mWinsock.sendData):
void COleDispatchDriver::InvokeHelperV(DISPID dwDispID, WORD
wFlags, VARTYPE vtRet, void* pvRet, const BYTE* pbParamInfo, va_l=
ist
argList)
{
//BLABLABLABLA
SCODE sc = m_lpDispatch->Invoke(dwDispID, IID_N=
ULL, 0, wFlags,
&dispparams, pvarResult, &excepInfo, &nArgErr); //<---This is where
error occours!!!
}
Maybe has something to do with MMTimer? this is how I implement it:
void CALLBACK CUart3Dlg::StartTimer( UINT wTimerID, UINT msg, DWORD
dwUser, DWORD dw1, DWORD dw2 )
{
CUart3Dlg* obj = (CUart3Dlg*) dwUser;
obj->Timer_SendData( wTimerID );
}
void CUart3Dlg::Timer_SendData( UINT wTimerID )
{
if( buffer_out.size() > 0 )
{
if( ui_retry_counter<MAX_RETRY_COUNT )
{
//Some operations
}
else
{
std::vector<unsigned char> o=
ut_tcp;
//fead out_tcp with data
//...........
Send_TCP( out_tcp ); <--This =
calls my m_Winsock.sendData( v );
}
}
}
Joseph M. Newcomer [MVP]
email: newco...@flounder.com
Web:http://www.flounder.com
MVP Tips:http://www.flounder.com/mvp_tips.htm
So will have similar problems using CAsynsocket?? What you suggest
then to work with sockets?