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