Re: NT Service with ADO

From:
"Kurt" <junk@junk.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 9 Jun 2006 12:25:30 -0500
Message-ID:
<eCuKqn#iGHA.4508@TK2MSFTNGP05.phx.gbl>
I don't know the socket class you are using but doesn't the listen function
block your main thread?

"almc" <antonio.carvalho@eloinformatica.pt> wrote in message
news:op.tav2c5nqy9hu51@dcspcantonioc.elodecisor.local...

Na , Kurt <junk@junk.com> escreveu:

Without seeing any code it's hard to say, are you trying to open a
connection in your startup routine? Did you call CoInitialize?


Yes, I'm calling the CoInitialize for each thread that I start.
This is my startup routine..

----- begin
void ServiceMain(DWORD /*dwArgc*/, LPTSTR* /*lpszArgv*/)
{
WSAStartup(MAKEWORD(1,1), &m_wsData); // Fill in WSA info
if (m_wsData.wVersion==0)
{
ReportStatusToSCM(SERVICE_STOPPED, ::GetLastError(), 0, 1, 0);
return;
}

//register our control handler
RegisterCtrlHandler();

//Pretend that starting up takes some time
ReportStatusToSCM(SERVICE_START_PENDING, NO_ERROR, 0, 1, 0);
ReportStatusToSCM(SERVICE_RUNNING, NO_ERROR, 0, 1, 0);

//Report to the event log that the service has started successfully
m_EventLogSource.Report(EVENTLOG_INFORMATION_TYPE,
CNTS_MSG_SERVICE_STARTED, m_sDisplayName);

AfxBeginThread(ThreadWork, this, THREAD_PRIORITY_BELOW_NORMAL);

//The tight loop which constitutes the service
while (!GetWantStop())
{
//As a demo, we just do a message beep
CSocketListener lstnr;
lstnr.Listen(this);
Sleep(500);
}

//Pretend that closing down takes some time
ReportStatusToSCM(SERVICE_STOP_PENDING, NO_ERROR, 0, 1, 0);
Sleep(1000);
ReportStatusToSCM(SERVICE_STOPPED, NO_ERROR, 0, 1, 0);

//Report to the event log that the service has stopped successfully
m_EventLogSource.Report(EVENTLOG_INFORMATION_TYPE,
CNTS_MSG_SERVICE_STOPPED, m_sDisplayName);
}
---- end

The thread pointed by ThreadWork, is the one that actualy uses the ADO
Connection; as you can also see, there is a cycle with a socket listener,
for some user interface for special tasks.

I hope it is enough...

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