modif struct svnwindows@3001

1 files changed, 0 insertions, 1414 deletions

diff --git a/Bus/IvyFileMon/DelayedDirectoryChangeHandler.cpp b/Bus/IvyFileMon/DelayedDirectoryChangeHandler.cpp
deleted file mode 100644
index 1c4daf0..0000000
--- a/Bus/IvyFileMon/DelayedDirectoryChangeHandler.cpp
+++ /dev/null
@@ -1,1414 +0,0 @@
-// DelayedDirectoryChangeHandler.cpp: implementation of the CDelayedDirectoryChangeHandler2 class.

-//

-//////////////////////////////////////////////////////////////////////

-

-#include "stdafx.h"

-#include "DirectoryChanges.h"

-#include "DelayedDirectoryChangeHandler.h"

-#include <process.h>//for _beginthreadex

-

-#include <shlwapi.h>				 // for PathMatchSpec

-#pragma comment( lib, "shlwapi.lib") // function

-

-

-#ifdef _DEBUG

-#undef THIS_FILE

-static char THIS_FILE[]=__FILE__;

-#define new DEBUG_NEW

-#endif

-

-#define UWM_DELAYED_DIRECTORY_NOTIFICATION (WM_APP+1024)

-

-

-HINSTANCE GetInstanceHandle()

-{

-	return (HINSTANCE)GetModuleHandle(NULL);

-	// ASSERT( AfxGetInstanceHandle() == (HINSTANCE)GetModuleHandle(NULL) ); <-- true for building .exe's 

-	//NOTE: In Dll's using shared MFC, AfxGetInstanceHandle() != (HINSTANCE)GetModuleHandle(NULL)...

-	//don't know if this is the case for dll's using static MFC

-}

-static inline bool IsEmptyString(LPCTSTR sz)

-{

-	return (bool)(sz==NULL || *sz == 0);

-}

-/*********************************************************

-  PathMatchSpec() requires IE 4.0 or greater on NT...

-  if running on NT 4.0 w/ out IE 4.0, then uses this function instead.

-

-  Based on code by Jack Handy:

-  http://www.codeproject.com/string/wildcmp.asp

-

-  Changed slightly to match the PathMatchSpec signature, be unicode compliant & to ignore case by myself.

-  

-*********************************************************/

-

-#define _TESTING_WILDCMP_ONLY_ 

-

-BOOL STDAPICALLTYPE wildcmp(LPCTSTR string, LPCTSTR wild ) 

-{

-	const TCHAR *cp, *mp;

-	cp = mp = NULL;

-	

-	while ((*string) && (*wild != _T('*'))) 

-	{

-		if ((_toupper(*wild) != _toupper(*string)) && (*wild != _T('?'))) 

-		{

-			return FALSE;

-		}

-		wild++;

-		string++;

-	}

-		

-	while (*string) 

-	{

-		if (*wild == _T('*')) 

-		{

-			if (!*++wild) 

-			{

-				return TRUE;

-			}

-			mp = wild;

-			cp = string+1;

-		} 

-		else 

-		if ((_toupper(*wild) == _toupper(*string)) || (*wild == _T('?'))) 

-		{

-			wild++;

-			string++;

-		} 

-		else 

-		{

-			wild = mp;

-			string = cp++;

-		}

-	}

-		

-	while (*wild == _T('*')) 

-	{

-		wild++;

-	}

-	return (!*wild)? TRUE : FALSE;

-}

-

-//////////////////////////////////////////////////////////////////////////

-//

-//CDirChangeNotification member functions:

-//

-CDirChangeNotification::CDirChangeNotification(CDelayedDirectoryChangeHandler *	pDelayedHandler, DWORD dwPartialPathOffset)

-:m_pDelayedHandler( pDelayedHandler )

-,m_szFileName1(NULL)

-,m_szFileName2(NULL)

-,m_dwError(0UL)

-,m_dwPartialPathOffset(dwPartialPathOffset)

-{

-	ASSERT( pDelayedHandler );

-}

-

-CDirChangeNotification::~CDirChangeNotification()

-{

-	if( m_szFileName1 ) free(m_szFileName1), m_szFileName1 = NULL;

-	if( m_szFileName2 ) free(m_szFileName2), m_szFileName2 = NULL;

-}

-

-void CDirChangeNotification::DispatchNotificationFunction()

-{

-	ASSERT( m_pDelayedHandler );

-	if( m_pDelayedHandler )

-		m_pDelayedHandler->DispatchNotificationFunction( this );

-}

-

-void CDirChangeNotification::PostOn_FileAdded(LPCTSTR szFileName)

-{

-	ASSERT( szFileName );

-	m_eFunctionToDispatch	= eOn_FileAdded;

-	m_szFileName1			= _tcsdup( szFileName) ;

-	//

-	// post the message so it'll be dispatch by another thread.

-	PostNotification();

-

-}

-void CDirChangeNotification::PostOn_FileRemoved(LPCTSTR szFileName)

-{

-	ASSERT( szFileName );

-	m_eFunctionToDispatch	= eOn_FileRemoved;

-	m_szFileName1			= _tcsdup( szFileName) ;

-	//

-	// post the message so it'll be dispatched by another thread.

-	PostNotification();

-	

-}

-void CDirChangeNotification::PostOn_FileNameChanged(LPCTSTR szOldName, LPCTSTR szNewName)

-{

-	ASSERT( szOldName && szNewName );

-

-	m_eFunctionToDispatch	= eOn_FileNameChanged;

-	m_szFileName1			= _tcsdup( szOldName) ;

-	m_szFileName2			= _tcsdup( szNewName) ;

-	//

-	// post the message so it'll be dispatched by another thread.

-	PostNotification();

-	

-}

-

-void CDirChangeNotification::PostOn_FileModified(LPCTSTR szFileName)

-{

-	ASSERT( szFileName );

-

-	m_eFunctionToDispatch	= eOn_FileModified;

-	m_szFileName1			= _tcsdup( szFileName );

-	//

-	// post the message so it'll be dispatched by another thread.

-	PostNotification();

-}

-

-void CDirChangeNotification::PostOn_ReadDirectoryChangesError(DWORD dwError, LPCTSTR szDirectoryName)

-{

-	ASSERT( szDirectoryName );

-

-	m_eFunctionToDispatch = eOn_ReadDirectoryChangesError;

-	m_dwError			  = dwError;

-	m_szFileName1		  = _tcsdup(szDirectoryName);

-	//

-	// post the message so it'll be dispatched by the another thread.

-	PostNotification();

-	

-}

-

-void CDirChangeNotification::PostOn_WatchStarted(DWORD dwError, LPCTSTR szDirectoryName)

-{

-	ASSERT( szDirectoryName );

-

-	m_eFunctionToDispatch = eOn_WatchStarted;

-	m_dwError			  =	dwError;

-	m_szFileName1		  = _tcsdup(szDirectoryName);

-

-	PostNotification();

-}

-

-void CDirChangeNotification::PostOn_WatchStopped(LPCTSTR szDirectoryName)

-{

-	ASSERT( szDirectoryName );

-

-	m_eFunctionToDispatch = eOn_WatchStopped;

-	m_szFileName1		  = _tcsdup(szDirectoryName);

-

-	PostNotification();

-}

-

-void CDirChangeNotification::PostNotification()

-{

-	ASSERT( m_pDelayedHandler );

-	if( m_pDelayedHandler )

-		m_pDelayedHandler->PostNotification( this );

-}

-

-static LRESULT CALLBACK DelayedNotificationWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

-//

-//	This is the wndproc for the notification window

-//

-//	it's here to dispatch the notifications to the client

-//

-{

-	if( message == UWM_DELAYED_DIRECTORY_NOTIFICATION )

-	{

-		CDirChangeNotification * pNotification = reinterpret_cast<CDirChangeNotification*>(lParam);

-		ASSERT(  pNotification );

-		if( pNotification )

-		{

-			DWORD dwEx(0);

-			__try{

-				pNotification->DispatchNotificationFunction();

-			}

-			__except(dwEx = GetExceptionCode(), EXCEPTION_EXECUTE_HANDLER){

-				//An exception was raised:

-				//

-				//	Likely cause: there was a problem creating the CDelayedDirectoryChangeHandler::m_hWatchStoppedDispatchedEvent object

-				//	and the change handler object was deleted before the notification could be dispatched to this function.

-				//

-				//  or perhaps, somebody's implementation of an overridden function caused an exception

-				TRACE(_T("Following exception occurred: %d -- File: %s Line: %d\n"), dwEx, _T(__FILE__), __LINE__);

-			}

-		}

-		

-		return 0UL;

-	}

-	else

-		return DefWindowProc(hWnd,message,wParam,lParam);

-}

-

-//////////////////////////////////////////////////////////////////////

-// Construction/Destruction

-//////////////////////////////////////////////////////////////////////

-//

-//CDelayedNotificationWindow static member vars:

-//

-long CDelayedNotificationWindow::s_nRefCnt = 0L;

-HWND CDelayedNotificationWindow::s_hWnd = NULL;

-BOOL CDelayedNotificationWindow::s_bRegisterWindow = FALSE;

-//

-//

-long CDelayedNotificationWindow::AddRef()//creates window for first time if necessary

-{

-	if( InterlockedIncrement(&s_nRefCnt) == 1

-		||	!::IsWindow( s_hWnd ) )

-	{

-		TRACE(_T("CDelayedNotificationWindow -- Creating the notification window\n"));

-		VERIFY( CreateNotificationWindow() );

-	}

-	return s_nRefCnt;

-}

-

-long CDelayedNotificationWindow::Release()//destroys window for last time if necessary

-{

-	long nRefCnt = -1;

-	if( (nRefCnt = InterlockedDecrement(&s_nRefCnt)) == 0 )

-	{

-		//no body else using the window so destroy it?

-		TRACE(_T("CDelayedNotificationWindow -- Destroying the notification window\n"));

-		DestroyWindow( s_hWnd );

-		s_hWnd = NULL;

-	}

-	return nRefCnt;

-}

-BOOL CDelayedNotificationWindow::RegisterWindowClass(LPCTSTR szClassName)

-//

-//	registers our own window class to use as the hidden notification window.

-//

-{

-	WNDCLASS wc = {0};

-	

-	wc.style = 0;

-	wc.hInstance		= GetInstanceHandle();

-	wc.lpszClassName	= szClassName;

-	wc.hbrBackground	= (HBRUSH)GetStockObject( WHITE_BRUSH );

-	wc.lpfnWndProc		= DelayedNotificationWndProc;

-	

-	ATOM ant = RegisterClass( &wc );

-	if( ant == NULL )

-	{

-		TRACE(_T("CDirChangeNotification::RegisterWindowClass - RegisterClass failed: %d\n"), GetLastError());

-	}

-	return (BOOL)(ant!= NULL);

-	

-}

-

-BOOL CDelayedNotificationWindow::CreateNotificationWindow()

-//

-//	Create the hidden notification windows.

-//

-{

-	TCHAR szClassName[] = _T("Delayed_Message_Sender");

-	if( !s_bRegisterWindow )

-		s_bRegisterWindow = RegisterWindowClass(szClassName);

-	s_hWnd 	= CreateWindowEx(0, szClassName, _T("DelayedWnd"),0,0,0,0,0, NULL, 0, 

-							GetInstanceHandle(), NULL);

-	if( s_hWnd == NULL )

-	{

-		TRACE(_T("Unable to create notification window! GetLastError(): %d\n"), GetLastError());

-		TRACE(_T("File: %s Line: %d\n"), _T(__FILE__), __LINE__);

-	}

-	

-	return (BOOL)(s_hWnd != NULL);

-}

-void CDelayedNotificationWindow::PostNotification(CDirChangeNotification * pNotification)

-//

-//	Posts a message to a window created in the main 

-//	thread.

-//	The main thread catches this message, and dispatches it in 

-//	the context of the main thread.

-//

-{

-	ASSERT( pNotification );

-	ASSERT( s_hWnd );

-	ASSERT( ::IsWindow( s_hWnd ) );

-

-	PostMessage(s_hWnd, 

-				UWM_DELAYED_DIRECTORY_NOTIFICATION, 

-				0, 

-				reinterpret_cast<LPARAM>( pNotification ));

-

-//  if you don't want the notification delayed, 

-//  

-//	if( false )

-//	{

-//		pNotification->DispatchNotificationFunction();

-//	}

-}

-

-/////////////////////////////////////////////////////////

-//	CDelayedNoticationThread

-//

-long	CDelayedNotificationThread::s_nRefCnt = 0L;

-HANDLE	CDelayedNotificationThread::s_hThread = NULL;

-DWORD	CDelayedNotificationThread::s_dwThreadID = 0UL;

-

-void CDelayedNotificationThread::PostNotification(CDirChangeNotification * pNotification)

-{

-	ASSERT( s_hThread != NULL );

-	ASSERT( s_dwThreadID != 0 );

-

-	if(

-		!PostThreadMessage(s_dwThreadID, 

-						   UWM_DELAYED_DIRECTORY_NOTIFICATION, 

-						   0, 

-						   reinterpret_cast<LPARAM>(pNotification))

-	  )

-	{

-		//Note, this can sometimes fail.

-		//Will fail if: s_dwThreadID references a invalid thread id(the thread has died for example)

-		// OR will fail if the thread doesn't have a message queue.

-		//

-		//	This was failing because the thread had not been fully started by the time PostThreadMessage had been called

-		//

-		//Note: if this fails, it creates a memory leak because

-		//the CDirChangeNotification object that was allocated and posted

-		//to the thread is actually never going to be dispatched and then deleted.... it's

-		//hanging in limbo.....

-

-		//

-		//	The fix for this situation was to force the thread that starts

-		//	this worker thread to wait until the worker thread was fully started before

-		//	continueing.  accomplished w/ an event... also.. posting a message to itself before signalling the 

-		//  'spawning' thread that it was started ensured that there was a message pump

-		//  associated w/ the worker thread by the time PostThreadMessage was called.

-		TRACE(_T("PostThreadMessage() failed while posting to thread id: %d! GetLastError(): %d%s\n"), s_dwThreadID, GetLastError(), GetLastError() == ERROR_INVALID_THREAD_ID? _T("(ERROR_INVALID_THREAD_ID)") : _T(""));

-	}

-}

-

-bool CDelayedNotificationThread::StartThread()

-{

-	TRACE(_T("CDelayedNotificationThread::StartThread()\n"));

-	ASSERT( s_hThread == NULL 

-		&&	s_dwThreadID == 0 );

-	s_hThread = (HANDLE)_beginthreadex(NULL,0, 

-								ThreadFunc, this, 0, (UINT*) &s_dwThreadID);

-	if( s_hThread )

-		WaitForThreadStartup();

-

-	return s_hThread == NULL ? false : true;

-

-}

-

-bool CDelayedNotificationThread::StopThread()

-{

-	TRACE(_T("CDelayedNotificationThread::StopThread()\n"));

-	if( s_hThread != NULL 

-	&&	s_dwThreadID != 0 )

-	{

-		PostThreadMessage(s_dwThreadID, WM_QUIT, 0,0);

-

-		WaitForSingleObject(s_hThread, INFINITE);

-		CloseHandle(s_hThread);

-		s_hThread	 = NULL;

-		s_dwThreadID = 0UL;

-		return true;

-	}

-	return true;//already shutdown

-}

-

-UINT __stdcall CDelayedNotificationThread::ThreadFunc(LPVOID lpvThis)

-{

-	//UNREFERENCED_PARAMETER( lpvThis );

-	//

-	//	Implements a simple message pump

-	//

-	CDelayedNotificationThread * pThis = reinterpret_cast<CDelayedNotificationThread*>(lpvThis);

-	ASSERT( pThis );

-

-	//

-	//	Insure that this thread has a message queue by the time another

-	//	thread gets control and tries to use PostThreadMessage

-	//	problems can happen if someone tries to use PostThreadMessage

-	//	in between the time pThis->SignalThreadStartup() is called,

-	//	and the first call to GetMessage();

-

-	::PostMessage(NULL, WM_NULL, 0,0);//if this thread didn't have a message queue before this, it does now.

-

-

-	//

-	//

-	//	Signal that this thread has started so that StartThread can continue.

-	//

-	if( pThis ) pThis->SignalThreadStartup();

-

-	TRACE(_T("CDelayedNotificationThread::ThreadFunc() ThreadID: %d -- Starting\n"), GetCurrentThreadId());

-	MSG msg;

-	do{

-		while( GetMessage(&msg, NULL, 0,0) )//note GetMessage() can return -1, but only if i give it a bad HWND.(HWND for another thread for example)..i'm not giving an HWND, so no problemo here.

-		{

-			if( msg.message == UWM_DELAYED_DIRECTORY_NOTIFICATION )

-			{

-				CDirChangeNotification * pNotification = 

-								reinterpret_cast<CDirChangeNotification *>( msg.lParam );

-				DWORD dwEx(0UL);

-

-				__try{

-				if( pNotification )

-					pNotification->DispatchNotificationFunction();

-				}

-				__except(dwEx = GetExceptionCode(), EXCEPTION_EXECUTE_HANDLER){

-				//An exception was raised:

-				//

-				//	Likely causes: 

-				//		* There was a problem creating the CDelayedDirectoryChangeHandler::m_hWatchStoppedDispatchedEvent object

-				//			and the change handler object was deleted before the notification could be dispatched to this function.

-				//

-				//		* Somebody's implementation of an overridden virtual function caused an exception

-				TRACE(_T("The following exception occurred: %d -- File: %s Line: %d\n"), dwEx, _T(__FILE__), __LINE__);

-				}

-			}

-			else

-			if( msg.message == WM_QUIT )

-			{

-				break;

-			}

-		}

-	}while( msg.message != WM_QUIT );

-	TRACE(_T("CDelayedNotificationThread::ThreadFunc() exiting. ThreadID: %d\n"), GetCurrentThreadId());

-	return 0;

-}

-

-long CDelayedNotificationThread::AddRef()

-{

-	if( InterlockedIncrement(&s_nRefCnt) == 1 )

-	{

-		VERIFY( StartThread() );

-	}

-	return s_nRefCnt;

-}

-long CDelayedNotificationThread::Release()

-{

-	if( InterlockedDecrement(&s_nRefCnt) <= 0 )

-	{

-		s_nRefCnt = 0;

-		VERIFY( StopThread() );

-	}

-	return s_nRefCnt;

-}

-

-///////////////////////////////////////////////////////

-//static member data for CDelayedDirectoryChangeHandler

-HINSTANCE CDelayedDirectoryChangeHandler::s_hShlwapi_dll = NULL;//for the PathMatchSpec() function

-BOOL CDelayedDirectoryChangeHandler::s_bShlwapi_dllExists = TRUE;

-long CDelayedDirectoryChangeHandler::s_nRefCnt_hShlwapi = 0L;

-FUNC_PatternMatchSpec CDelayedDirectoryChangeHandler::s_fpPatternMatchSpec = wildcmp;//default

-///////////////////////////////////////////////////////

-//construction destruction

-CDelayedDirectoryChangeHandler::CDelayedDirectoryChangeHandler(CDirectoryChangeHandler * pRealHandler, bool bAppHasGUI, LPCTSTR szIncludeFilter, LPCTSTR szExcludeFilter, DWORD dwFilterFlags)

-: m_pDelayNotifier( NULL )

- ,m_pRealHandler( pRealHandler )

- ,m_szIncludeFilter(NULL)

- ,m_szExcludeFilter(NULL)

- ,m_dwFilterFlags( dwFilterFlags )

- ,m_dwPartialPathOffset( 0UL )

- ,m_hWatchStoppedDispatchedEvent(NULL)

- ,m_nNumIncludeFilterSpecs(0)

- ,m_nNumExcludeFilterSpecs(0)

-{

-

-

-	ASSERT( m_pRealHandler ); 

-

-	InitializePathMatchFunc( szIncludeFilter, szExcludeFilter );

-

-	//

-	// See that we're 

-	//

-

-

-	m_hWatchStoppedDispatchedEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL);//AUTO-RESET, not initially signalled

-	ASSERT( m_hWatchStoppedDispatchedEvent );

-	

-	if( bAppHasGUI )

-	{

-		//

-		//	The value true was passed to the CDirectoryChangeWatcher constructor.

-		//	It's assumed that your app has a gui, that is, it implements

-		//	a message pump.  To delay the notification to another thread,

-		//	we'll use a hidden notification window.

-		//

-		m_pDelayNotifier = new CDelayedNotificationWindow();

-	}

-	else

-	{

-		// The value 'false' was passed to the CDirectoryChangeWatcher constructor.

-		//

-		// Your app has no message pump... use a class that implements one for you

-		// in a worker thread.

-		//

-		// Notifications will be executed in this worker thread.

-		//

-		m_pDelayNotifier = new CDelayedNotificationThread();

-	}

-}

-

-CDelayedDirectoryChangeHandler::~CDelayedDirectoryChangeHandler()

-{

-	if( m_pRealHandler )

-		delete m_pRealHandler, m_pRealHandler = NULL;

-	if( m_pDelayNotifier )

-		delete m_pDelayNotifier, m_pDelayNotifier = NULL;

-

-	if( m_hWatchStoppedDispatchedEvent )

-		CloseHandle(m_hWatchStoppedDispatchedEvent), m_hWatchStoppedDispatchedEvent = NULL;

-

-	if( m_szIncludeFilter ){

-		if( m_nNumIncludeFilterSpecs == 1 )

-			free(m_szIncludeFilter);

-		else

-		{

-			TCHAR ** ppTmp = (TCHAR**)m_szIncludeFilter;

-			for(int i(0); i < m_nNumIncludeFilterSpecs; ++i)

-			{

-				free( *ppTmp++ );

-			}

-			free( m_szIncludeFilter );

-		}

-		m_szIncludeFilter = NULL;

-		m_nNumIncludeFilterSpecs;

-	}

-	if( m_szExcludeFilter ) {

-		if( m_nNumExcludeFilterSpecs == 1 )

-			free(m_szExcludeFilter);

-		else{

-			TCHAR ** ppTmp = (TCHAR**)m_szExcludeFilter;

-			for(int i(0); i < m_nNumExcludeFilterSpecs; ++i)

-			{

-				free( *ppTmp++ );

-			}

-			free( m_szExcludeFilter );

-		}

-		m_szExcludeFilter = NULL;

-		m_nNumExcludeFilterSpecs = 0;

-	}

-

-	UninitializePathMatchFunc();

-}

-

-BOOL CDelayedDirectoryChangeHandler::_PathMatchSpec(LPCTSTR szPath, LPCTSTR szPattern)

-{

-	if( s_fpPatternMatchSpec )

-	{

-		return s_fpPatternMatchSpec(szPath, szPattern);

-	}

-	ASSERT( FALSE );

-	return TRUE;//everything matches.

-}

-

-BOOL CDelayedDirectoryChangeHandler::InitializePathMatchFunc(LPCTSTR szIncludeFilter, LPCTSTR szExcludeFilter)

-//

-//

-//	To support the Include and Exclude filters, the PathMatchSpec function is used.

-//	PathMatchSpec is only supported on NT4.0 if IE 4.0 is installed.

-//

-//	for the case where this code is running on NT 4.0 w/out IE 4.0, we use

-//	a different function: wildcmp ()

-//

-//

-//	This function attempts to load shlwapi.dll dynamically and find the PathMatchSpec function.

-//

-//	if the function PathMatchSpec can't be found, the function pointer s_fpPathMatchSpec is set to wildcmp.

-//

-//

-//	Note:  wildcmp doesn't support multiple file specs separated by a semi-colon

-//	as PathMatchSpec does.... we'll support it by parsing them 

-//	when we want to test the filters, we'll call the pattern matching functions multiple times...

-//

-{

-

-	//

-	//	Copy the include/exclude filters if specified...

-	//

-	//

-	if( IsEmptyString(szIncludeFilter) 

-	&&	IsEmptyString(szExcludeFilter) )

-	{

-		return TRUE;//both the include && exclude filters aren't specified

-					//no need to initialize the pattern matching function....

-					//if filters are never used, then

-					//one less dll is loaded.

-	}

-

-#ifdef _TESTING_WILDCMP_ONLY_

-	s_hShlwapi_dll = NULL;

-	s_bShlwapi_dllExists = FALSE;

-	return InitializePatterns(szIncludeFilter, szExcludeFilter);

-#endif

-

-

-	if( s_hShlwapi_dll != NULL )

-	{

-		ASSERT( s_fpPatternMatchSpec != NULL );

-		InterlockedIncrement(&s_nRefCnt_hShlwapi);

-

-		return InitializePatterns(szIncludeFilter, szExcludeFilter);

-	}

-	else{

-		if( s_bShlwapi_dllExists == TRUE )//either the dll exists, or we haven't tried loading it yet...

-		{

-			//The pattern match function hasn't been initialized yet....

-			//

-		

-			s_hShlwapi_dll = ::LoadLibrary(_T("Shlwapi.dll"));

-			if( s_hShlwapi_dll == NULL )

-			{

-				s_bShlwapi_dllExists = FALSE;//don't try loading this dll again.

-				s_fpPatternMatchSpec = wildcmp;//even though it's set buy default, and this code will only get here once, set it just for fun.

-

-				return InitializePatterns(szIncludeFilter, szExcludeFilter);

-				

-			}

-			else

-			{

-				//Shlwapi.dll was found....check it for PathMatchSpec()

-#ifdef UNICODE 

-				s_fpPatternMatchSpec = (FUNC_PatternMatchSpec)::GetProcAddress(s_hShlwapi_dll, "PathMatchSpecW");

-#else

-				s_fpPatternMatchSpec = (FUNC_PatternMatchSpec)::GetProcAddress(s_hShlwapi_dll, "PathMatchSpecA");

-#endif

-	

-				if( s_fpPatternMatchSpec != NULL )

-				{

-					//UsesRealPathMatchSpec() will now return true.

-					//we're on NT w/ IE 4.0 or greater...(or Win2k/XP)

-					InterlockedIncrement(&s_nRefCnt_hShlwapi);

-					return InitializePatterns(szIncludeFilter, szExcludeFilter);

-				}

-				else

-				{

-					//we found shlwapi.dll, but it didn't have PathMatchSpec()

-					::FreeLibrary( s_hShlwapi_dll );

-					s_hShlwapi_dll = NULL;

-					s_bShlwapi_dllExists = FALSE;

-

-					//instead of using PathMatchSpec()

-					//we'll use wildcmp()

-					s_fpPatternMatchSpec = wildcmp;

-					//UsesRealPathMatchSpec() will now return false w/out asserting.

-

-					return InitializePatterns(szIncludeFilter, szExcludeFilter);

-				}

-			}

-			

-		}

-	}

-	return (s_fpPatternMatchSpec != NULL);

-}

-

-BOOL CDelayedDirectoryChangeHandler::InitializePatterns(LPCTSTR szIncludeFilter, LPCTSTR szExcludeFilter)

-{

-	ASSERT( !IsEmptyString(szIncludeFilter)   //one of these must have something in it, 

-		||  !IsEmptyString(szExcludeFilter) );//or else this function shouldn't be called.

-

-	if( s_hShlwapi_dll != NULL )

-	{

-		//we're using Shlwapi.dll's PathMatchSpec function....

-		//we're running on NT4.0 w/ IE 4.0 installed, or win2k/winXP(or greater)

-		//

-		//	Copy the include/exclude filters if specified...

-		//

-		//

-		// we're using the real PathMatchSpec() function which

-		//	supports multiple pattern specs...(separated by a semi-colon)

-		//	so there's only one filter spec as far as my code is concerned.

-		//

-		if( !IsEmptyString(szIncludeFilter) )

-		{

-			m_szIncludeFilter = _tcsdup(szIncludeFilter);

-			ASSERT( m_szIncludeFilter );

-			m_nNumIncludeFilterSpecs = 1;

-		}

-		if( !IsEmptyString(szExcludeFilter) )

-		{

-			m_szExcludeFilter = _tcsdup(szExcludeFilter);	

-			ASSERT( m_szExcludeFilter );

-			m_nNumExcludeFilterSpecs = 1;

-		}	

-	}

-	else

-	{

-		//shlwapi.dll isn't on this machine.... can happen on NT4.0 w/ out IE 4.0 installed.

-		ASSERT( s_bShlwapi_dllExists == FALSE );

-

-		//

-		//	we're using the function wildcmp() instead of PathMatchSpec..

-		//

-		//	this means that multiple pattern specs aren't supported...

-		// in order to support them, we'll tokenize the string into multiple

-		// pattern specs and test the string multiple times(once per pattern spec) 

-		// in order to support multiple patterns.

-		//

-		//

-		//	m_szIncludeFilter & m_szExclude filter will be used like TCHAR**'s instead of TCHAR*'s

-		//

-

-		m_nNumIncludeFilterSpecs = 0;

-		if( !IsEmptyString(szIncludeFilter) )

-		{

-			TCHAR * szTmpFilter = _tcsdup(szIncludeFilter);

-			TCHAR * pTok = _tcstok( szTmpFilter, _T(";"));

-			while( pTok )

-			{

-				m_nNumIncludeFilterSpecs++;

-				pTok = _tcstok(NULL, _T(";"));

-			}

-			if( m_nNumIncludeFilterSpecs == 1 )

-				m_szIncludeFilter = _tcsdup(szIncludeFilter);

-			else

-			{   //allocate room for pointers .. one for each token...

-				m_szIncludeFilter = (TCHAR*)malloc( m_nNumIncludeFilterSpecs * sizeof(TCHAR*));

-

-				free(szTmpFilter);

-				szTmpFilter = _tcsdup(szIncludeFilter);

-				pTok = _tcstok(szTmpFilter, _T(";"));

-				TCHAR ** ppTmp = (TCHAR**)m_szIncludeFilter;

-				while(pTok)

-				{

-					*ppTmp = _tcsdup(pTok);

-					ppTmp++;

-					pTok = _tcstok(NULL, _T(";"));

-				}

-			}

-

-			free(szTmpFilter);

-		}

-

-		//

-		//	Do the same for the Exclude filter...

-		//

-		m_nNumExcludeFilterSpecs = 0;

-		if( !IsEmptyString(szExcludeFilter) )

-		{

-			TCHAR * szTmpFilter = _tcsdup(szExcludeFilter);

-			TCHAR * pTok = _tcstok( szTmpFilter, _T(";"));

-			while( pTok )

-			{

-				m_nNumExcludeFilterSpecs++;

-				pTok = _tcstok(NULL, _T(";"));

-			}

-			if( m_nNumExcludeFilterSpecs == 1 )

-				m_szExcludeFilter = _tcsdup(szExcludeFilter);

-			else

-			{   //allocate room for pointers .. one for each token...

-				m_szExcludeFilter = (TCHAR*)malloc( m_nNumExcludeFilterSpecs * sizeof(TCHAR*));

-

-				free(szTmpFilter);

-				szTmpFilter = _tcsdup(szExcludeFilter);

-

-				pTok = _tcstok(szTmpFilter, _T(";"));

-				TCHAR ** ppTmp = (TCHAR**)m_szExcludeFilter;

-				while(pTok)

-				{

-					*ppTmp = _tcsdup(pTok);

-					ppTmp++;

-					pTok = _tcstok(NULL, _T(";"));

-				}

-			}

-			free(szTmpFilter);

-		}

-

-	}

-

-	return (m_szExcludeFilter!= NULL || (m_szIncludeFilter != NULL));

-}

-void CDelayedDirectoryChangeHandler::UninitializePathMatchFunc()

-{

-	if( s_bShlwapi_dllExists == TRUE 

-	&&  s_hShlwapi_dll != NULL )

-	{

-		if( InterlockedDecrement(&s_nRefCnt_hShlwapi) <= 0)

-		{

-			s_nRefCnt_hShlwapi = 0;

-			FreeLibrary( s_hShlwapi_dll );

-			s_hShlwapi_dll = NULL;

-			s_fpPatternMatchSpec = wildcmp;

-		}

-	}

-}

-

-bool CDelayedDirectoryChangeHandler::UsesRealPathMatchSpec() const

-//are we using PathMatchSpec() or wildcmp()?

-{

-	if( s_hShlwapi_dll != NULL && s_fpPatternMatchSpec != NULL )

-		return true;

-	if( s_hShlwapi_dll == NULL && s_fpPatternMatchSpec != NULL )

-		return false;

-

-	ASSERT( FALSE );//this function was called before InitializePathMatchFunc()

-	//oops!

-	return false;

-}

-static inline bool HasTrailingBackslash(const CString & str )

-{

-	if( str.GetLength() > 0 

-	&&	str[ str.GetLength() - 1 ] == _T('\\') )

-		return true;

-	return false;

-}

-void CDelayedDirectoryChangeHandler::SetPartialPathOffset(const CString & strWatchedDirName)

-{

-	if( m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_CHECK_PARTIAL_PATH )

-	{

-		//set the offset to 

-		if( HasTrailingBackslash( strWatchedDirName ) )

-			m_dwPartialPathOffset = strWatchedDirName.GetLength();

-		else

-			m_dwPartialPathOffset = strWatchedDirName.GetLength() + 1;

-	}

-	else

-		m_dwPartialPathOffset = 0;

-}

-

-CDirChangeNotification * CDelayedDirectoryChangeHandler::GetNotificationObject()

-//

-//	Maybe in future I'll keep a pool of these 

-//	objects around to increase performance...

-//	using objects from a cache will be faster 

-//	than allocated and destroying a new one each time.

-//	

-//  

-{

-	ASSERT( m_pRealHandler );

-	return new CDirChangeNotification(this, m_dwPartialPathOffset);//helps support FILTERS_CHECK_PARTIAL_PATH

-}

-

-void CDelayedDirectoryChangeHandler::DisposeOfNotification(CDirChangeNotification * pNotification)

-{

-	delete pNotification;

-}

-

-//These functions are called when the directory to watch has had a change made to it

-void CDelayedDirectoryChangeHandler::On_FileAdded(const CString & strFileName)

-{

-	CDirChangeNotification * p = GetNotificationObject();

-	ASSERT( p );

-	if( p ) p->PostOn_FileAdded( strFileName );

-}

-

-void CDelayedDirectoryChangeHandler::On_FileRemoved(const CString & strFileName)

-{

-	CDirChangeNotification * p = GetNotificationObject();

-	ASSERT( p );

-	if( p ) p->PostOn_FileRemoved( strFileName );

-}

-

-void CDelayedDirectoryChangeHandler::On_FileModified(const CString & strFileName)

-{

-	CDirChangeNotification * p = GetNotificationObject();

-	ASSERT( p );

-	if( p ) p->PostOn_FileModified( strFileName );

-}

-

-void CDelayedDirectoryChangeHandler::On_FileNameChanged(const CString & strOldFileName, const CString & strNewFileName)

-{

-	CDirChangeNotification * p = GetNotificationObject();	

-	ASSERT( p );

-	if( p ) p->PostOn_FileNameChanged( strOldFileName, strNewFileName );

-}

-

-void CDelayedDirectoryChangeHandler::On_ReadDirectoryChangesError(DWORD dwError, const CString & strDirectoryName)

-{

-	CDirChangeNotification * p = GetNotificationObject();

-	ASSERT( p );

-	if( p ) p->PostOn_ReadDirectoryChangesError( dwError, strDirectoryName );

-}

-

-void CDelayedDirectoryChangeHandler::On_WatchStarted(DWORD dwError, const CString & strDirectoryName)

-{

-	if( !(m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_NO_WATCHSTART_NOTIFICATION))

-	{

-		CDirChangeNotification * p = GetNotificationObject();

-

-		if( p ) p->PostOn_WatchStarted(dwError, strDirectoryName);

-	}

-}

-

-void CDelayedDirectoryChangeHandler::On_WatchStopped(const CString & strDirectoryName)

-{

-	if( !(m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_NO_WATCHSTOP_NOTIFICATION))

-	{

-		CDirChangeNotification * p = GetNotificationObject();

-

-		if( p ){

-			if( m_hWatchStoppedDispatchedEvent )

-				::ResetEvent(m_hWatchStoppedDispatchedEvent);

-

-			p->PostOn_WatchStopped( strDirectoryName );

-

-			//	Wait that this function has been dispatched to the other thread

-			//	before continueing.  This object may be getting deleted

-			//	soon after this function returns, and before the function can be

-			//	dispatched to the other thread....

-			WaitForOnWatchStoppedDispatched();

-		}

-	}

-}

-

-

-void CDelayedDirectoryChangeHandler::PostNotification(CDirChangeNotification * pNotification)

-{

-	if( m_pDelayNotifier )

-		m_pDelayNotifier->PostNotification( pNotification );

-}

-

-inline bool IsNonFilterableEvent( CDirChangeNotification::eFunctionToDispatch eEvent)

-// Helper function

-//	For filtering events..... these functions can not be filtered out.

-//

-{

-	if(	eEvent == CDirChangeNotification::eOn_WatchStarted 

-	||	eEvent == CDirChangeNotification::eOn_WatchStopped

-	||	eEvent == CDirChangeNotification::eOn_ReadDirectoryChangesError )

-	{

-		return true;

-	}

-	else

-		return false;

-}

-DWORD GetPathOffsetBasedOnFilterFlags(CDirChangeNotification * pNot, DWORD dwFilterFlags)

-{

-	

-	ASSERT( pNot && dwFilterFlags != 0 );

-	//helps support the filter options FILTERS_CHECK_FULL_PATH, FILTERS_CHECK_PARTIAL_PATH, and FILTERS_CHECK_FILE_NAME_ONLY

-

-	DWORD dwFileNameOffset = 0;//offset needed to support FILTERS_CHECK_FULL_PATH

-	if( dwFilterFlags & CDirectoryChangeWatcher::FILTERS_CHECK_FILE_NAME_ONLY )

-	{

-		//set the offset to support FILTERS_CHECK_FILE_NAME_ONLY

-		TCHAR * pSlash  = _tcsrchr(pNot->m_szFileName1, _T('\\'));

-		if( pSlash )

-			dwFileNameOffset = (++pSlash - pNot->m_szFileName1);

-

-		//

-		//	Because file name change notifications take place in the same directory,

-		//	the same dwFileNameOffset can be used for the szNewFileName(pNot->m_szFileName2)

-		//	when checking the filter against the new file name.

-		//

-	}

-	else

-	if( dwFilterFlags & CDirectoryChangeWatcher::FILTERS_CHECK_PARTIAL_PATH)

-	{

-		//

-		//	partial path offset is the offset 

-		//	from the beginning of the file name, 

-		//	to the end of the watched directory path...

-		//	ie: If you're watching "C:\Temp"

-		//		and the file C:\Temp\SubFolder\FileName.txt" is changed,

-		//		the partial path offset will give you "SubFolder\FileName.txt"

-		//		when this is checked against the include/exclude filter.

-		//

-		dwFileNameOffset = pNot->m_dwPartialPathOffset;

-	}

-	//else

-	//if( m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_CHECK_FULL_PATH )

-	//	dwFileNameOffset = 0;

-	

-	return dwFileNameOffset;

-}

-

-bool CDelayedDirectoryChangeHandler::NotifyClientOfFileChange(CDirChangeNotification * pNot)

-//

-//

-//	Perform the tests to see if the client wants to be notified of this

-//	file change notification.

-//

-//	Tests performed:

-//

-//	Event test:		Not all events can be filtered out.

-//					On_ReadDirectoryChangesError

-//					cannot be filtered out.

-//	Filter flags test:  User can specify flags so that no tests are performed....all notifications are sent to the user.

-//

-//	Filter test:	Test the notification file name against include and exclude filters.

-//

-//					Only files changes matching the INCLUDE filter will be passed to the client.

-//					By not specifying an include filter, all file changes are passed to the client.

-//	

-//				    Any files matching the EXCLUDE filter will not be passed to the client.

-//

-//

-//					Note: For the file name change event:

-//							If the old file name does not pass the tests for the include and exclude filter

-//							but the NEW file name does pass the test for the filters, then the client IS notified.

-//

-//	Client test:	The CDirectoryChangeHandler derived class is given a chance to filter the event by calling

-//					CDirectoryChangeHandler::On_FilterNotification()

-//

-//	RETURN VALUE:

-//	If this function returns true, the notification function is called.

-//	If it returns false, the notification is ignored.

-//			The client is notified by calling CDirectoryChangeHandler's virtual functions On_FileAdded(),On_FileRemoved(), etc.

-{

-	ASSERT( pNot );

-	ASSERT( m_pRealHandler );

-

-	//

-	//	Some events can't be ignored, or filtered out.

-	//

-

-	if( ((m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_DONT_USE_ANY_FILTER_TESTS) == CDirectoryChangeWatcher::FILTERS_DONT_USE_ANY_FILTER_TESTS)

-	||	IsNonFilterableEvent( pNot->m_eFunctionToDispatch ) )

-	{

-		// Either this is a non-filterable event, or we're not using any filters...

-		// client is notified of all events..

-		return true;

-	}

-

-	//

-	//	See if user wants to test CDirectoryChangeHandler::On_FilterNotification()

-	//	before tests are performed against the file name, and filter specifications

-	//

-	if( (m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_TEST_HANDLER_FIRST )//specified that CDirectoryChangeHandler::On_FilterNotification is to be called before any other filter tests

-	&&	!(m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_DONT_USE_HANDLER_FILTER)//and did not specify that this CDirectoryChangeHandler::On_FilterNotification is not to be called..

-	&&	!m_pRealHandler->On_FilterNotification(pNot->m_eFunctionToDispatch, pNot->m_szFileName1, pNot->m_szFileName2) )

-	{

-		//

-		//	Client specified to test handler first, and it didn't pass the test... don't notify the client.

-		//

-		return false;

-	}

-	//else

-	//

-	//	this file change passed the user test, continue testing

-	//	to see if it passes the filter tests.

-

-	DWORD dwFileNameOffset = GetPathOffsetBasedOnFilterFlags(pNot, m_dwFilterFlags);

-

-	//

-	//	See if the changed file matches the include or exclude filter

-	//	Only allow notifications for included files 

-	//	that have not been exluded.

-	//

-	if(!(m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_DONT_USE_FILTERS) )

-	{

-		if( false == IncludeThisNotification(pNot->m_szFileName1 + dwFileNameOffset)

-		||	true == ExcludeThisNotification(pNot->m_szFileName1 + dwFileNameOffset) )

-		{

-			if( pNot->m_eFunctionToDispatch != CDirChangeNotification::eOn_FileNameChanged )

-				return false;

-			else{

-				//Special case for file name change:

-				//

-				// the old file name didn't pass the include/exclude filter

-				// but if the new name passes the include/exclude filter, 

-				// we will pass it on to the client...

-

-				if( false == IncludeThisNotification(pNot->m_szFileName2 + dwFileNameOffset) 

-				||	true == ExcludeThisNotification(pNot->m_szFileName2 + dwFileNameOffset) )

-				{

-					// the new file name didn't pass the include/exclude filter test either

-					// so don't pass the notification on...

-					return false;

-				}

-

-			}

-		}

-

-	}

-	

-	//

-	//	Finally, let the client determine whether or not it wants this file notification

-	//	if this test has not already been performed...

-	//

-

-	if( (m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_TEST_HANDLER_FIRST) 

-	||	(m_dwFilterFlags & CDirectoryChangeWatcher::FILTERS_DONT_USE_HANDLER_FILTER) )

-	{

-		//	if we got this far, and this flag was specified, 

-		//	it's already passed this test,

-		//  or we're not checking it based on the filter flag FILTERS_DONT_USE_HANDLER_FILTER....

-		return true;

-	}

-	else

-	{

-		if( m_pRealHandler->On_FilterNotification(pNot->m_eFunctionToDispatch,

-											  pNot->m_szFileName1,

-											  pNot->m_szFileName2) )

-		{

-			return true;

-		}

-		else

-		{

-			//else  client's derived CDirectoryChangeHandler class chose 

-			//		not to be notified of this file change

-			return false;

-		}

-	}

-		

-	

-}

-

-bool CDelayedDirectoryChangeHandler::IncludeThisNotification(LPCTSTR szFileName)

-//

-//	The Include filter specifies which file names we should allow to notifications

-//	for... otherwise these notifications are not dispatched to the client's code.

-//

-//	Tests the file name to see if it matches a filter specification

-//

-//	RETURN VALUES:

-//		

-//		true : notifications for this file are to be included...

-//			   notifiy the client by calling the appropriate CDirectoryChangeHandler::On_Filexxx() function.

-//		false: this file is not included.... do not notifiy the client...

-//

-{

-	ASSERT( szFileName );

-

-	if( m_szIncludeFilter == NULL ) // no filter specified, all files pass....

-		return true;

-	if( m_nNumIncludeFilterSpecs == 1 )

-	{

-		return _PathMatchSpec(szFileName, m_szIncludeFilter)? true : false;

-	}

-	else

-	{

-		TCHAR ** ppTmp = (TCHAR**)m_szIncludeFilter;

-		for(int i(0); i < m_nNumIncludeFilterSpecs; ++i )

-		{

-			if( _PathMatchSpec(szFileName, *ppTmp++) )

-				return true;

-		}

-		return false;

-	}

-

-	return false;

-}

-

-bool CDelayedDirectoryChangeHandler::ExcludeThisNotification(LPCTSTR szFileName)

-//

-//	Tests the file name to see if it matches a filter specification

-//	if this function returns true, it means that this notification

-//	is NOT to be passed to the client.... changes to this kind of file

-//	are not

-//

-//	RETURN VALUES:

-//		

-//		true :   notifications for this file are to be filtered out(EXCLUDED)...

-//				 do not notifify the client code.

-//		false:   notifications for this file are NOT to be filtered out

-//

-//

-{

-

-	ASSERT( szFileName );

-

-	if( m_szExcludeFilter == NULL ) // no exclude filter... nothing is excluded...

-		return false;

-	if( m_nNumExcludeFilterSpecs == 1 )

-	{

-		if( _PathMatchSpec(szFileName, m_szExcludeFilter) )

-			return true;//exclude this notification...

-		return false;

-	}

-	else

-	{

-		TCHAR ** ppTmp = (TCHAR**)m_szExcludeFilter;

-		for(int i(0); i < m_nNumExcludeFilterSpecs; ++i )

-		{

-			if( _PathMatchSpec(szFileName, *ppTmp++) )

-				return true;//exclude this one...

-		}

-		return false;//didn't match any exclude filters...don't exclude it

-	}

-/**

-	if( m_szExcludeFilter == NULL //no exclude filter specified, not excluding anything....

-	||	!PathMatchSpec(szFileName, m_szExcludeFilter) )//or didn't match filter pattern.. this is not excluded...

-	{

-		return false;

-	}

-	return true;

-***/

-	

-}

-

-void CDelayedDirectoryChangeHandler::DispatchNotificationFunction(CDirChangeNotification * pNotification)

-/*****************************************************

-	This function is called when we want the notification to execute.

-

-	

-******************************************************/

-{

-	ASSERT( m_pRealHandler );

-	ASSERT( pNotification );

-	if( pNotification && m_pRealHandler )

-	{

-		//

-		//	Allow the client to ignore the notification

-		//

-		//

-		if( NotifyClientOfFileChange(pNotification))

-		{

-			switch( pNotification->m_eFunctionToDispatch )

-			{

-			case CDirChangeNotification::eOn_FileAdded:

-				

-				m_pRealHandler->On_FileAdded( pNotification->m_szFileName1 ); 

-				break;

-				

-			case CDirChangeNotification::eOn_FileRemoved:

-				

-				m_pRealHandler->On_FileRemoved( pNotification->m_szFileName1 );

-				break;

-				

-			case CDirChangeNotification::eOn_FileNameChanged:

-				

-				m_pRealHandler->On_FileNameChanged( pNotification->m_szFileName1, pNotification->m_szFileName2 );

-				break;

-				

-			case CDirChangeNotification::eOn_FileModified:

-				

-				m_pRealHandler->On_FileModified( pNotification->m_szFileName1 );

-				break;

-				

-			case CDirChangeNotification::eOn_ReadDirectoryChangesError:

-				

-				m_pRealHandler->On_ReadDirectoryChangesError( pNotification->m_dwError, pNotification->m_szFileName1 );

-				break;

-				

-			case CDirChangeNotification::eOn_WatchStarted:

-		

-				m_pRealHandler->On_WatchStarted(pNotification->m_dwError, pNotification->m_szFileName1);

-				break;

-		

-			case CDirChangeNotification::eOn_WatchStopped:

-				

-				try{

-					//

-					//	The exception handler is just in case of the condition described in DirectoryChanges.h

-					//	in the comments for On_WatchStopped()

-					//

-					m_pRealHandler->On_WatchStopped(pNotification->m_szFileName1);

-

-				}catch(...){

-					MessageBeep( 0xffff );

-					MessageBeep( 0xffff );

-			#ifdef DEBUG

-					MessageBox(NULL,_T("An RTFM Exception was raised in On_WatchStopped() -- see Comments for CDirectoryChangeHandler::On_WatchStopped() in DirectoryChanges.h."), _T("Programmer Note(DEBUG INFO):"), MB_ICONEXCLAMATION | MB_OK);

-			#endif

-				}

-				//

-				//	Signal that the On_WatchStopped() function has been dispatched.

-				//

-				if( m_hWatchStoppedDispatchedEvent )

-					SetEvent(m_hWatchStoppedDispatchedEvent);

-				break;

-			case CDirChangeNotification::eFunctionNotDefined:

-			default:

-				break;

-			}//end switch()

-		}

-	}	

-	if( pNotification )						 //		

-		DisposeOfNotification(pNotification);// deletes or releases the notification object from memory/use

-											 //

-}

-

-BOOL CDelayedDirectoryChangeHandler::WaitForOnWatchStoppedDispatched( )

-//

-//	When shutting down, m_pRealHandler->On_WatchStopped() will be called.

-//	Because it's possible that this object will be deleted before the notification

-//	can be dispatched to the other thread, we have to wait until we know that it's been executed

-//	before returning control.

-//

-//	This function signals that the function has been dispatched to the other

-//	thread and it will be safe to delete this object once this has returned.

-//

-{

-	ASSERT( m_hWatchStoppedDispatchedEvent );

-	DWORD dwWait = WAIT_FAILED;

-	if( m_hWatchStoppedDispatchedEvent )

-	{

-

-		if( m_bAppHasGUI == false )

-		{

-			//

-			//	The function will be dispatched to another thread...

-			//	just wait for the event to be signalled....

-			do{

-				dwWait	= WaitForSingleObject(m_hWatchStoppedDispatchedEvent, 5000);//wait five seconds

-				if( dwWait != WAIT_OBJECT_0 )

-				{

-					TRACE(_T("WARNING: Possible Deadlock detected! ThreadID: %d File: %s Line: %d\n"), GetCurrentThreadId(), _T(__FILE__), __LINE__);

-				}

-			}while( dwWait != WAIT_OBJECT_0 );

-		}

-		else

-		{

-			//

-			//	Note to self:  This thread doesn't have a message Q, and therefore can't attach to 

-			//	receive messages and process them... MsgWaitForMultipleObjects won't wake up for messages 

-			//	unless i attach myself the the other threads input Q....

-			//	just use MsgWaitForMultipleObjects() in place of WaitForSingleObject in the places where it's used...

-			//

-			do{

-				dwWait = MsgWaitForMultipleObjects(1, &m_hWatchStoppedDispatchedEvent, 

-												   FALSE, 5000, 

-												   QS_ALLEVENTS);//wake up for all events, sent messages, posted messages etc.

-				switch(dwWait)

-				{

-				case WAIT_OBJECT_0:

-					{

-						//

-						// The event has become signalled

-						//

-						

-					}break;

-				case WAIT_OBJECT_0 + 1: 

-					{

-						//

-						//	There is a message in this thread's queue, so 

-						//	MsgWaitForMultipleObjects returned.

-						//	Process those messages, and wait again.

-

-						MSG msg;

-						while( PeekMessage(&msg, NULL, 0,0, PM_REMOVE ) ) 

-						{

-							if( msg.message != WM_QUIT)

-							{

-								TranslateMessage(&msg);

-								DispatchMessage(&msg);

-							}

-							else

-							{

-								/****

-								NOTE: putting WM_QUIT back in the Q caused problems. forget about it.

-								****/

-								break;

-							}

-						}

-					}break;

-				case WAIT_TIMEOUT:

-					{

-						TRACE(_T("WARNING: Possible Deadlock detected! ThreadID: %d File: %s Line: %d\n"), GetCurrentThreadId(), _T(__FILE__), __LINE__);

-					}break;

-				}

-			}while( dwWait != WAIT_OBJECT_0 );

-			ASSERT( dwWait == WAIT_OBJECT_0 );

-		}

-

-	}

-	else

-	{

-		TRACE(_T("WARNING: Unable to wait for notification that the On_WatchStopped function has been dispatched to another thread.\n"));

-		TRACE(_T("An Exception may occur shortly.\n"));

-		TRACE(_T("File: %s Line: %d"), _T( __FILE__ ), __LINE__);

-	

-	}

-

-

-	return (dwWait == WAIT_OBJECT_0 );

-}

-

-void CDelayedDirectoryChangeHandler::SetChangedDirectoryName(const CString & strChangedDirName)

-{

-	ASSERT( m_pRealHandler );

-	CDirectoryChangeHandler::SetChangedDirectoryName(strChangedDirName);

-	if( m_pRealHandler )

-		m_pRealHandler->SetChangedDirectoryName( strChangedDirName );

-}

-const CString & CDelayedDirectoryChangeHandler::GetChangedDirectoryName() const

-{

-	if( m_pRealHandler )

-		return m_pRealHandler->GetChangedDirectoryName();

-	return CDirectoryChangeHandler::GetChangedDirectoryName();

-}
\ No newline at end of file