Leaked source code of windows server 2003
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//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1997.
//
// File: N M I N I T . C P P
//
// Contents: Initialization routines for netman.
//
// Notes:
//
// Author: shaunco 27 Jan 1998
//
//----------------------------------------------------------------------------
#include "pch.h"
#pragma hdrstop
#include "nmbase.h"
#include "nminit.h"
static const WCHAR c_szClassObjectRegistrationEvent [] =
L"NetmanClassObjectRegistrationEvent";
//+---------------------------------------------------------------------------
//
// Function: HrNmCreateClassObjectRegistrationEvent
//
// Purpose: Create the named event that will be signaled after
// our class objects have been registered.
//
// Arguments:
// phEvent [out] Returned event handle
//
// Returns: S_OK or a Win32 error code.
//
// Author: shaunco 27 Jan 1998
//
// Notes:
//
HRESULT
HrNmCreateClassObjectRegistrationEvent (
OUT HANDLE* phEvent)
{
Assert (phEvent);
HRESULT hr = S_OK;
// Create the name event and return it.
//
*phEvent = CreateEvent (NULL, FALSE, FALSE,
c_szClassObjectRegistrationEvent);
if (!*phEvent)
{
hr = HrFromLastWin32Error ();
}
TraceHr (ttidError, FAL, hr, FALSE,
"HrNmCreateClassObjectRegistrationEvent");
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrNmWaitForClassObjectsToBeRegistered
//
// Purpose: For the event to be signaled if it can be opened.
//
// Arguments:
// (none)
//
// Returns: S_OK or a Win32 error code.
//
// Author: shaunco 27 Jan 1998
//
// Notes:
//
HRESULT
HrNmWaitForClassObjectsToBeRegistered ()
{
HRESULT hr = S_OK;
// Try to open the named event. If it does not exist,
// that's okay because we've probably already created and destroyed
// it before this function was called.
//
HANDLE hEvent = OpenEvent (SYNCHRONIZE, FALSE,
c_szClassObjectRegistrationEvent);
if (hEvent)
{
// Now wait for the event to be signaled while pumping messages
// as needed. We'll wait for up to 10 seconds. That should be
// plenty of time for the class objects to be registered.
//
while (1)
{
const DWORD cMaxWaitMilliseconds = 10000; // 10 seconds
DWORD dwWait = MsgWaitForMultipleObjects (1, &hEvent, FALSE,
cMaxWaitMilliseconds, QS_ALLINPUT);
if ((WAIT_OBJECT_0 + 1) == dwWait)
{
// We have messages to pump.
//
MSG msg;
while (PeekMessage(&msg,NULL,NULL,NULL,PM_REMOVE))
{
DispatchMessage (&msg);
}
}
else
{
// Wait is satisfied, or we had a timeout, or an error.
//
if (WAIT_TIMEOUT == dwWait)
{
hr = HRESULT_FROM_WIN32 (ERROR_TIMEOUT);
}
else if (0xFFFFFFFF == dwWait)
{
hr = HrFromLastWin32Error ();
}
break;
}
}
CloseHandle (hEvent);
}
TraceHr (ttidError, FAL, hr, FALSE,
"HrNmWaitForClassObjectsToBeRegistered");
return hr;
}