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 C++ Code 

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// MFCLeakerTest.cpp : Defines the class behaviors for the application. // #include "stdafx.h" #include "MFCLeakerTest.h" #include "MFCLeakerTestDlg.h" #include "MemLeakDetect.h" // CMFCLeakerTestApp BEGIN_MESSAGE_MAP(CMFCLeakerTestApp, CWinApp)     ON_COMMAND(ID_HELP, CWinApp::OnHelp) END_MESSAGE_MAP() // CMFCLeakerTestApp construction CMFCLeakerTestApp::CMFCLeakerTestApp() {     CLeakMemory *pMem;     pMem = new CLeakMemory();     // TODO: add construction code here,     // Place all significant initialization in InitInstance } // Detect Memory Leaks #ifdef _DEBUG CMemLeakDetect memLeakDetect; #endif // The one and only CMFCLeakerTestApp object CMFCLeakerTestApp theApp; // CMFCLeakerTestApp initialization BOOL CMFCLeakerTestApp::InitInstance() {     // InitCommonControls() is required on Windows XP if an application     // manifest specifies use of ComCtl32.dll version 6 or later to enable     // visual styles.  Otherwise, any window creation will fail.     InitCommonControls();     CWinApp::InitInstance();     AfxEnableControlContainer();     ... }

 

 

 C++ Code ：*.h

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/*************************************************************  Author     : David A. Jones  File Name  : MemLeakDetect.h  Date       : July 30, 2004  Synopsis   :                     A trace memory feature for source code to trace and             find memory related bugs.   Future     :                 1) Memory corruption                 2) Freeing memory without allocating                 3) Freeing memory twice                 4) Not Freeing memory at all                 5) over running memory boundardies         July 2009: Tim Stevens (UNICODE/ANSI 32 bit only, more secure CRT with VS 2008).         Feb  2011: Doug Rogers, Igor Jambrek, OfekSH & tim. (Compiles as 64 & 32 bit).         Based on http://www.codeproject.com/cpp/MemLeakDetect.asp ****************************************************************/ /* Compiles clean in Visual Studio 2008 SP1 in 32 & 64 UNICODE and MultiByte builds. By default, disabled in Release mode, since it relies on the Debug MS  Runtime DLLs, the licence terms of which only allow redistribution in  Release mode. However, if you do want to use it in Release mode, then comment out the "#ifdef _DEBUG" lines that guard the complete MemLeakDetect.h & .cpp files,  and link against the Debug runtimes (e.g. /MTd instead of /MT) in Release mode. Please don't use precompiled headers for this file. To catch most malloc/free or new/delete leaks, simply add this  block of code (& #define MEMORY_LEAK_CHECK) at the application level: #ifdef _DEBUG     #ifdef MEMORY_LEAK_CHECK         #include "MemLeakDetect.h"         static CMemLeakDetect memLeakDetect;     #endif #endif A typical leak might be:     int *pfoo = new int[1000]; Then forgetting to do     delete [] pfoo; Then when running under a debugger, if there is a leak, you'll get this kind of  output in the Output pane. You'll also get files with names like "mldetector-(AppName.exe)_Feb16-2011__21-53-43.log" written to your %TEMP% directory: Memory Leak(1)-------------------> Memory Leak <0xBC> bytes(86) occurance(0) c:\code\ta2svn\sandbox\pjh\software\common\memleakdetect.cpp(201): 0x0044B7C3->CMemLeakDetect::addMemoryTrace() c:\code\ta2svn\sandbox\pjh\software\common\memleakdetect.cpp(140): 0x0044B4B2->catchMemoryAllocHook() 0x0012D874->_malloc_dbg() 0x0012D874->_malloc_dbg() 0x0012D874->_malloc_dbg() 0x0012D874->malloc() 0x0012D874->??2@YAPAXI@Z() f:\dd\vctools\crt_bld\self_x86\crt\src\newaop.cpp(7): 0x004B4D1E->operator new[]() c:\code\ta2svn\sandbox\pjh\software\hw_app\hw_app.cpp(145): 0x00442276->wmain() f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c(579): 0x004B56C8->__tmainCRTStartup() f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c(399): 0x004B550F->wmainCRTStartup() 0x0012D874->RegisterWaitForInputIdle() ----------------------------------------------------------- Total 1 Memory Leaks: 86 bytes Total Alocations 276 You can then double-click in the Output pane on the leak ((145) in the example above) and be taken to the source line which caused the leak. */ #if !defined(MEMLEAKDETECT_H) #define MEMLEAKDETECT_H #ifdef _DEBUG #define _CRTDBG_MAP_ALLOC #include <map> #define _CRTBLD #include <windows.h> #include <..\crt\src\dbgint.h> #include <imagehlp.h> #include <crtdbg.h> #pragma comment( lib, "imagehlp.lib" ) using namespace std; // if you want to use the custom stackwalker otherwise // comment this line out #define MLD_CUSTOMSTACKWALK         1 // #define MLD_MAX_NAME_LENGTH         256 #define MLD_MAX_TRACEINFO           63 #define MLD_TRACEINFO_EMPTY         _T("") #define MLD_TRACEINFO_NOSYMBOL      _T("?(?)") #ifdef  MLD_CUSTOMSTACKWALK #define MLD_STACKWALKER             symStackTrace2 #else #define MLD_STACKWALKER             symStackTrace #endif #define AfxTrace MyTrace #ifndef _WIN64 typedef DWORD ADDR; typedef PIMAGEHLP_SYMBOL IMAGE_SYM; typedef IMAGEHLP_LINE IMAGE_LN; #else typedef DWORD64 ADDR; typedef PIMAGEHLP_SYMBOL64 IMAGE_SYM; typedef IMAGEHLP_LINE64 IMAGE_LN; #endif class CMemLeakDetect {     public:         typedef struct  {                 ADDRESS             addrPC;                 ADDRESS             addrFrame;                      } STACKFRAMEENTRY;         typedef struct tagAllocBlockInfo         {             //  Added constructor to zero memory - thanks to bugfix from OfekSH.                 tagAllocBlockInfo() { ZeroMemory(traceinfo, sizeof(traceinfo) ); }                 void*               address;                  size_t              size;                 TCHAR               fileName[MLD_MAX_NAME_LENGTH];                 DWORD               lineNumber;                 DWORD               occurance;                 STACKFRAMEENTRY     traceinfo[MLD_MAX_TRACEINFO];         } AllocBlockInfo;         //typedef int POSITION;         typedef map<lpvoid,>                KEYMAP;         typedef map<lpvoid,>::iterator  POSITION;         typedef pair<lpvoid,>           KEYVALUE;         class CMapMem         {             public:                 KEYMAP          m_Map;                 POSITION        m_Pos;                 inline BOOL Lookup(LPVOID pAddr,  AllocBlockInfo& aInfo) {                      m_Pos = m_Map.find(pAddr);                     //                     if (m_Pos == m_Map.end())                     {                         return FALSE;                     }                     //                     pAddr = m_Pos->first;                     aInfo = m_Pos->second;                     return TRUE;                 };                 inline POSITION end() {                      return m_Map.end();                  };                 inline void RemoveKey(LPVOID pAddr) {                                           m_Map.erase(pAddr);                 };                 inline void RemoveAll() {                     m_Map.clear();                 };                 void SetAt(LPVOID pAddr, AllocBlockInfo& aInfo) {                     m_Map[pAddr] = aInfo;                 };                 inline POSITION GetStartPosition() {                      POSITION pos = m_Map.begin();                      return pos;                 };                 inline void GetNextAssoc(POSITION& pos, LPVOID& rAddr, AllocBlockInfo& aInfo) {                     rAddr = pos->first;                     aInfo = pos->second;                     pos++;                 };                 void InitHashTable(int preAllocEntries, BOOL flag)  {                      preAllocEntries    = NULL;                      flag               = NULL;                 };         };         CMemLeakDetect();         ~CMemLeakDetect();         void Init();         void End();         void addMemoryTrace(void* addr,  size_t asize,  TCHAR *fname, DWORD lnum);         void redoMemoryTrace(void* addr,  void* oldaddr, size_t asize,  TCHAR *fname, DWORD lnum);         void removeMemoryTrace(void* addr, void* realdataptr);         void cleanupMemoryTrace();         void dumpMemoryTrace();         //         //CMap<lpvoid,> m_AllocatedMemoryList;         CMapMem          m_AllocatedMemoryList;     DWORD memoccurance;     bool  isLocked;     //     private:         typedef USHORT (WINAPI *CaptureStackBackTraceType)(__in ULONG, __in ULONG, __out PVOID*, __out_opt PULONG);         HMODULE m_k32;         CaptureStackBackTraceType m_func;         BOOL initSymInfo(TCHAR* lpUserPath);         BOOL cleanupSymInfo();         void symbolPaths( TCHAR* lpszSymbolPaths);         void symStackTrace(STACKFRAMEENTRY* pStacktrace);         void symStackTrace2(STACKFRAMEENTRY* pStacktrace);         BOOL symFunctionInfoFromAddresses(ADDR fnAddress, ADDR stackAddress, TCHAR *lpszSymbol, UINT BufSizeTCHARs);         BOOL symSourceInfoFromAddress(ADDR address, TCHAR* lpszSourceInfo);         BOOL symModuleNameFromAddress(ADDR address, TCHAR* lpszModule);         HANDLE              m_hProcess;         PIMAGEHLP_SYMBOL    m_pSymbol;         DWORD               m_dwsymBufSize; }; #endif #endif

 

 C++ Code : *.cpp

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/*************************************************************  Author     : David A. Jones  File Name  : MemLeakDetect.h  Date       : July 30, 2004  Synopsis                     A trace memory feature for source code to trace and             find memory related bugs.  ****************************************************************/ // See MemLeakDetect.h for full history. // Based on http://www.codeproject.com/cpp/MemLeakDetect.asp #ifdef _DEBUG #include <tchar.h> #include "MemLeakDetect.h" #include <fstream> #include <time.h> #include <psapi.h>                  // Only needed for GetModuleBaseName(). #pragma comment(lib, "Psapi.lib")   // Only needed for GetModuleBaseName(). //#pragma warning(disable:4312) // 'type cast' : conversion from 'long' to 'void *' of greater size //#pragma warning(disable:4313) //#pragma warning(disable:4267) #pragma warning(disable:4100)   // Unreferenced formal parameter. static CMemLeakDetect*  g_pMemTrace         = NULL; static _CRT_ALLOC_HOOK  pfnOldCrtAllocHook  = NULL; static int catchMemoryAllocHook(int allocType,                           void   *userData,                           size_t size,                           int    blockType,                           long   requestNumber,            const unsigned char   *filename, // Can't be UNICODE                          int    lineNumber) ; static int MyTrace(LPCTSTR lpszFormat, ...); static void DeleteOldTempFiles(const TCHAR dir[], const TCHAR type[], int DaysAge); static int MyTrace(LPCTSTR lpszFormat, ...) {     va_list args;     va_start( args, lpszFormat); #ifndef UNICODE     char buffer[1024];     vsprintf_s( buffer, lpszFormat, args );     return _CrtDbgReport(_CRT_WARN,NULL,NULL,NULL,buffer); #else     TCHAR buffer[1024];     vswprintf_s( buffer, lpszFormat, args );     char fmtbuf[1024] ;     WideCharToMultiByte(CP_ACP, 0, buffer, -1,         fmtbuf, 1024, NULL, NULL ) ;     return _CrtDbgReport(_CRT_WARN,NULL,NULL,NULL,fmtbuf); #endif } static int catchMemoryAllocHook(int allocType,                           void   *userData,                           size_t size,                           int    blockType,                           long   requestNumber,            const unsigned char   *filename,  // Can't be UNICODE                          int    lineNumber) {     _CrtMemBlockHeader *pCrtHead;     long prevRequestNumber; #ifdef UNICODE     wchar_t Wname[1024] ;     Wname[0] = L'\0' ; #endif     // internal C library internal allocations     if ( blockType == _CRT_BLOCK )     {         return( TRUE );     }     // check if someone has turned off mem tracing     if  ((( _CRTDBG_ALLOC_MEM_DF & _crtDbgFlag) == 0) &&          (( allocType            == _HOOK_ALLOC)     ||              ( allocType         == _HOOK_REALLOC)))     {         if (pfnOldCrtAllocHook)         {             pfnOldCrtAllocHook(allocType, userData, size, blockType, requestNumber, filename, lineNumber);         }         return TRUE;     }     // protect if mem trace is not initialized     if (g_pMemTrace == NULL)     {         if (pfnOldCrtAllocHook)         {             pfnOldCrtAllocHook(allocType, userData, size, blockType, requestNumber, filename, lineNumber);         }         return TRUE;     }     // protect internal mem trace allocs     if (g_pMemTrace->isLocked)     {         if (pfnOldCrtAllocHook)         {             pfnOldCrtAllocHook(allocType, userData, size, blockType, requestNumber, filename, lineNumber);         }         return( TRUE);     }     // lock the function     g_pMemTrace->isLocked = true;     // #ifdef UNICODE     int len ;     if (NULL != filename)     {         len = (int)strlen((char *)filename) + 1 ;         MultiByteToWideChar(CP_ACP, 0, (char *)filename, len, Wname, len) ;     }     else         len = 0 ; #else     #define Wname (char*)filename #endif     if (allocType == _HOOK_ALLOC)     {         g_pMemTrace->addMemoryTrace((void *) requestNumber, size, Wname, lineNumber);     }     else     if (allocType == _HOOK_REALLOC)     {         if (_CrtIsValidHeapPointer(userData))         {             pCrtHead = pHdr(userData);             prevRequestNumber = pCrtHead->lRequest;             //             if (pCrtHead->nBlockUse == _IGNORE_BLOCK)             {                 if (pfnOldCrtAllocHook)                 {                     pfnOldCrtAllocHook(allocType, userData, size, blockType, requestNumber, filename, lineNumber);                 }                 goto END;             }             g_pMemTrace->redoMemoryTrace((void *) requestNumber, (void *) prevRequestNumber, size, Wname, lineNumber);         }     }     else     if (allocType == _HOOK_FREE)     {         if (_CrtIsValidHeapPointer(userData))         {             pCrtHead = pHdr(userData);             requestNumber = pCrtHead->lRequest;             //             if (pCrtHead->nBlockUse == _IGNORE_BLOCK)             {                 if (pfnOldCrtAllocHook)                 {                     pfnOldCrtAllocHook(allocType, userData, size, blockType, requestNumber, filename, lineNumber);                 }                 goto END;             }             g_pMemTrace->removeMemoryTrace((void *) requestNumber, userData);         }     } END:     // unlock the function     g_pMemTrace->isLocked = false;     return TRUE; } void CMemLeakDetect::addMemoryTrace(void* addr,  size_t asize,  TCHAR *fname, DWORD lnum) {     AllocBlockInfo ainfo;     //     if (m_AllocatedMemoryList.Lookup(addr, ainfo))     {         // already allocated         AfxTrace(_T("ERROR!CMemLeakDetect::addMemoryTrace() Address(0x%p) already allocated\n"), addr);         return;     }     //     ainfo.address       = addr;     ainfo.lineNumber    = lnum;     ainfo.size          = asize;     ainfo.occurance     = memoccurance++;     MLD_STACKWALKER(&ainfo.traceinfo[0]);     //     if (fname)         _tcsncpy_s(&ainfo.fileName[0], MLD_MAX_NAME_LENGTH, fname, MLD_MAX_NAME_LENGTH);     else       ainfo.fileName[0] = 0;     //     m_AllocatedMemoryList.SetAt(addr, ainfo); }; void CMemLeakDetect::redoMemoryTrace(void* addr,  void* oldaddr, size_t asize,  TCHAR *fname, DWORD lnum) {     AllocBlockInfo ainfo;     if (m_AllocatedMemoryList.Lookup(oldaddr,(AllocBlockInfo &) ainfo))     {         m_AllocatedMemoryList.RemoveKey(oldaddr);     }     else     {         AfxTrace(_T("ERROR!CMemLeakDetect::redoMemoryTrace() didnt find Address(0x%08X) to free\n"), oldaddr);     }     //     ainfo.address       = addr;     ainfo.lineNumber    = lnum;     ainfo.size          = asize;     ainfo.occurance     = memoccurance++;     MLD_STACKWALKER(&ainfo.traceinfo[0]);     //     if (fname)         _tcsncpy_s(&ainfo.fileName[0], MLD_MAX_NAME_LENGTH, fname, MLD_MAX_NAME_LENGTH);     else       ainfo.fileName[0] = 0;     m_AllocatedMemoryList.SetAt(addr, ainfo); }; void CMemLeakDetect::removeMemoryTrace(void* addr, void* realdataptr) {     AllocBlockInfo ainfo;     //     if (m_AllocatedMemoryList.Lookup(addr,(AllocBlockInfo &) ainfo))     {         m_AllocatedMemoryList.RemoveKey(addr);     }     else     {        //freeing unallocated memory         AfxTrace(_T("ERROR!CMemLeakDetect::removeMemoryTrace() didnt find Address(0x%08X) to free\n"), addr);     } }; void CMemLeakDetect::cleanupMemoryTrace() {     m_AllocatedMemoryList.RemoveAll(); }; void CMemLeakDetect::dumpMemoryTrace() {     POSITION            pos;     LPVOID              addr;     AllocBlockInfo      ainfo;     TCHAR               buf[MLD_MAX_NAME_LENGTH];     TCHAR               fileName[MLD_MAX_NAME_LENGTH];     TCHAR               symInfo[MLD_MAX_NAME_LENGTH];     TCHAR               srcInfo[MLD_MAX_NAME_LENGTH];     size_t              totalSize                       = 0;     int                 numLeaks                        = 0;     STACKFRAMEENTRY*    p                               = 0;     ofstream myfile; #ifdef UNICODE         char dest[1024] ; #endif     struct tm timeinfo;     __time64_t long_time;     _time64(&long_time);     // Convert to local time.     _localtime64_s(&timeinfo, &long_time);     TCHAR TempDir[MAX_PATH];     TCHAR ProcName[MAX_PATH];     GetTempPath(MAX_PATH, TempDir);     ProcName[0] = _T('\0');     GetModuleBaseName(GetCurrentProcess(), NULL, ProcName, sizeof(ProcName)/sizeof(TCHAR));     _stprintf_s(fileName, MLD_MAX_NAME_LENGTH, _T("%smldetector-(%s)_"), TempDir, ProcName);      _tcsftime(buf,MLD_MAX_NAME_LENGTH, _T("%b%d-%Y__%H-%M-%S.log"),&timeinfo);     _tcscat_s(fileName,MLD_MAX_NAME_LENGTH, buf);     myfile.open (fileName);      DeleteOldTempFiles(TempDir, _T("mldetector-(*.log"), 7);     //     _tcscpy_s(symInfo, MLD_MAX_NAME_LENGTH, MLD_TRACEINFO_NOSYMBOL);     _tcscpy_s(srcInfo, MLD_MAX_NAME_LENGTH, MLD_TRACEINFO_NOSYMBOL);     //     pos = m_AllocatedMemoryList.GetStartPosition();     //     while(pos != m_AllocatedMemoryList.end())     {         numLeaks++;         _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("Memory Leak(%d)------------------->\n"), numLeaks);         AfxTrace(buf); #ifdef UNICODE         WideCharToMultiByte( CP_ACP, 0, buf, -1, dest, 1024, NULL, NULL );         myfile << dest; #else         myfile << buf; #endif         //         m_AllocatedMemoryList.GetNextAssoc(pos, (LPVOID &) addr, (AllocBlockInfo&) ainfo);         if (ainfo.fileName[0] != NULL)         {             _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("Memory Leak <0x%p> bytes(%d) occurance(%d) %s(%d)\n"),                      ainfo.address, ainfo.size, ainfo.occurance, ainfo.fileName, ainfo.lineNumber);         }         else         {             _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("Memory Leak <0x%p> bytes(%d) occurance(%d)\n"),                      ainfo.address, ainfo.size, ainfo.occurance);         }         //         AfxTrace(buf); #ifdef UNICODE         WideCharToMultiByte( CP_ACP, 0, buf, -1, dest, 1024, NULL, NULL );         myfile << dest; #else         myfile << buf; #endif         //         p = &ainfo.traceinfo[0];         while(p[0].addrPC.Offset)         {             symFunctionInfoFromAddresses( p[0].addrPC.Offset, p[0].addrFrame.Offset, symInfo, MLD_MAX_NAME_LENGTH);             symSourceInfoFromAddress(     p[0].addrPC.Offset, srcInfo );             _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("%s->%s()\n"), srcInfo, symInfo);             AfxTrace(_T("%s->%s()\n"), srcInfo, symInfo); #ifdef UNICODE         WideCharToMultiByte( CP_ACP, 0, buf, -1, dest, 1024, NULL, NULL );         myfile << dest; #else         myfile << buf; #endif             p++;         }         totalSize += ainfo.size;     }     _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("\n-----------------------------------------------------------\n"));     AfxTrace(buf); #ifdef UNICODE         WideCharToMultiByte( CP_ACP, 0, buf, -1, dest, 1024, NULL, NULL );         myfile << dest; #else         myfile << buf; #endif     if(!totalSize)      {         _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("No Memory Leaks Detected for %d Allocations\n\n"), memoccurance);         AfxTrace(buf); #ifdef UNICODE         WideCharToMultiByte( CP_ACP, 0, buf, -1, dest, 1024, NULL, NULL );         myfile << dest; #else         myfile << buf; #endif     }     else     {         _stprintf_s(buf, MLD_MAX_NAME_LENGTH, _T("Total %d Memory Leaks: %d bytes Total Alocations %d\n\n"), numLeaks, totalSize, memoccurance);     }     AfxTrace(buf); #ifdef UNICODE     WideCharToMultiByte( CP_ACP, 0, buf, -1, dest, 1024, NULL, NULL );     const TCHAR *umb = _T("Unicode");     myfile << dest; #else     myfile << buf;     const TCHAR *umb = _T("Multibyte"); #endif #ifdef _WIN64     const TCHAR *w64 = _T("64 bit"); #else     const TCHAR *w64 = _T("32 bit"); #endif #ifdef NDEBUG     const TCHAR *dbg = _T("release build."); #else     const TCHAR *dbg = _T("debug build."); #endif     _stprintf_s(TempDir, MAX_PATH, _T("%s %s %s\n"), umb, w64, dbg); #ifdef UNICODE     WideCharToMultiByte( CP_ACP, 0, TempDir, -1, dest, 1024, NULL, NULL );     myfile << dest;     AfxTrace(TempDir); #else     myfile << TempDir;     AfxTrace(TempDir); #endif     myfile.close(); } void CMemLeakDetect::Init() {     m_func = (CaptureStackBackTraceType)(GetProcAddress( m_k32 = LoadLibrary(_T("kernel32.dll")), "RtlCaptureStackBackTrace"));     m_dwsymBufSize      = (MLD_MAX_NAME_LENGTH + sizeof(PIMAGEHLP_SYMBOL));     m_hProcess          = GetCurrentProcess();     m_pSymbol               = (IMAGE_SYM)GlobalAlloc( GMEM_FIXED, m_dwsymBufSize);     m_AllocatedMemoryList.InitHashTable(10211, TRUE);     initSymInfo( NULL );     isLocked                = false;     g_pMemTrace         = this;     pfnOldCrtAllocHook  = _CrtSetAllocHook( catchMemoryAllocHook );  } void CMemLeakDetect::End() {     isLocked                = true;     _CrtSetAllocHook(pfnOldCrtAllocHook);     dumpMemoryTrace();     cleanupMemoryTrace();     cleanupSymInfo();     GlobalFree(m_pSymbol);     g_pMemTrace             = NULL;     FreeLibrary(m_k32); } CMemLeakDetect::CMemLeakDetect() {     Init(); } CMemLeakDetect::~CMemLeakDetect() {     End(); } // PRIVATE STUFF void CMemLeakDetect::symbolPaths( TCHAR* lpszSymbolPath) {     TCHAR lpszPath[MLD_MAX_NAME_LENGTH];    // Creating the default path where the dgbhelp.dll is located    // ".;%_NT_SYMBOL_PATH%;%_NT_ALTERNATE_SYMBOL_PATH%;%SYSTEMROOT%;%SYSTEMROOT%\System32;"     _tcscpy_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T(".;..\\;..\\..\\"));     // environment variable _NT_SYMBOL_PATH     if ( GetEnvironmentVariable(_T("_NT_SYMBOL_PATH"), lpszPath, MLD_MAX_NAME_LENGTH ))     {         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T(";"));         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, lpszPath );     }     // environment variable _NT_ALTERNATE_SYMBOL_PATH     if ( GetEnvironmentVariable( _T("_NT_ALTERNATE_SYMBOL_PATH"), lpszPath, MLD_MAX_NAME_LENGTH ))     {         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T(";"));         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, lpszPath );     }     // environment variable SYSTEMROOT     if ( GetEnvironmentVariable( _T("SYSTEMROOT"), lpszPath, MLD_MAX_NAME_LENGTH ) )     {         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T(";"));         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, lpszPath);         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T(";"));         // SYSTEMROOT\System32         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, lpszPath );         _tcscat_s( lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T("\\System32"));     } } BOOL CMemLeakDetect::cleanupSymInfo() {     return SymCleanup( GetCurrentProcess() ); } // Initializes the symbol files BOOL CMemLeakDetect::initSymInfo( TCHAR* lpszUserSymbolPath ) {     TCHAR   lpszSymbolPath[MLD_MAX_NAME_LENGTH];     DWORD   symOptions = SymGetOptions();     symOptions |= SYMOPT_LOAD_LINES;      symOptions &= ~SYMOPT_UNDNAME;     SymSetOptions( symOptions );     // Get the search path for the symbol files     symbolPaths( lpszSymbolPath);     //     if (lpszUserSymbolPath)     {         _tcscat_s(lpszSymbolPath, MLD_MAX_NAME_LENGTH, _T(";"));         _tcscat_s(lpszSymbolPath, MLD_MAX_NAME_LENGTH, lpszUserSymbolPath);     } #ifdef UNICODE     int len = (int)_tcslen(lpszSymbolPath) + 1 ;     char dest[1024] ;     WideCharToMultiByte( CP_ACP, 0, lpszSymbolPath, -1, dest, len, NULL, NULL );     BOOL bret = SymInitialize( GetCurrentProcess(), dest, TRUE); #else     BOOL bret = SymInitialize( GetCurrentProcess(), lpszSymbolPath, TRUE) ; #endif     return bret; } /*void CMemLeakDetect::symStackTrace(STACKFRAMEENTRY* pStacktrace ) {     STACKFRAME     callStack;     BOOL           bResult;     CONTEXT        context;     HANDLE         hThread  = GetCurrentThread();     // get the context     memset( &context, NULL, sizeof(context) );     context.ContextFlags = CONTEXT_FULL;     if ( !GetThreadContext( hThread, &context ) )     {     //   AfxTrace("Call stack info(thread=0x%X) failed.\n", hThread );        return;     }     //initialize the call stack     memset( &callStack, NULL, sizeof(callStack) );     callStack.AddrPC.Offset    = context.Eip;     callStack.AddrStack.Offset = context.Esp;     callStack.AddrFrame.Offset = context.Ebp;     callStack.AddrPC.Mode      = AddrModeFlat;     callStack.AddrStack.Mode   = AddrModeFlat;     callStack.AddrFrame.Mode   = AddrModeFlat;     //     for( DWORD index = 0; index < MLD_MAX_TRACEINFO; index++ )      {         bResult = StackWalk(IMAGE_FILE_MACHINE_I386,                             m_hProcess,                             hThread,                             &callStack,                             NULL,                              NULL,                             SymFunctionTableAccess,                             SymGetModuleBase,                             NULL);                           //if ( index == 0 )          //  continue;         if( !bResult || callStack.AddrFrame.Offset == 0 )              break;         //         pStacktrace[0].addrPC    = callStack.AddrPC;         pStacktrace[0].addrFrame = callStack.AddrFrame;         pStacktrace++;     }     //clear the last entry     memset(pStacktrace, NULL, sizeof(STACKFRAMEENTRY)); }*/ // // This code is still under investigation // I have to test this code and make sure it is compatible // with the other stack walker! // void CMemLeakDetect::symStackTrace2(STACKFRAMEENTRY* pStacktrace ) {     long            StackIndex              = 0;     ADDR            block[63];     memset(block,0,sizeof(block));     USHORT frames = (m_func)(3,59,(void**)block,NULL);     for (int i = 0; i < frames ; i++)     {         ADDR            InstructionPtr = (ADDR)block[i];         pStacktrace[StackIndex].addrPC.Offset   = InstructionPtr;         pStacktrace[StackIndex].addrPC.Segment  = NULL;         pStacktrace[StackIndex].addrPC.Mode     = AddrModeFlat;         //         StackIndex++;     }     pStacktrace[StackIndex].addrPC.Offset = 0;     pStacktrace[StackIndex].addrPC.Segment = 0; } BOOL CMemLeakDetect::symFunctionInfoFromAddresses( ADDR fnAddress, ADDR stackAddress, TCHAR *lpszSymbol,                                                     UINT BufSizeTCHARs) {     ADDR             dwDisp = 0;     ::ZeroMemory(m_pSymbol, m_dwsymBufSize );     m_pSymbol->SizeOfStruct     = sizeof(IMAGEHLP_LINE64);     //m_pSymbol->MaxNameLength  = DWORD64 - sizeof(IMAGEHLP_SYMBOL64);     // Set the default to unknown     _tcscpy_s( lpszSymbol, MLD_MAX_NAME_LENGTH, MLD_TRACEINFO_NOSYMBOL);     // Get symbol info for IP     if ( SymGetSymFromAddr( m_hProcess, (ADDR)fnAddress, &dwDisp, m_pSymbol ) )     { #ifdef UNICODE         int len = (int)strlen(m_pSymbol->Name) + 1 ;         wchar_t dest[1024] ;         MultiByteToWideChar(CP_ACP, 0, m_pSymbol->Name, len, dest, len );         _tcscpy_s(lpszSymbol, BufSizeTCHARs, dest); #else         _tcscpy_s(lpszSymbol, BufSizeTCHARs, m_pSymbol->Name); #endif         return TRUE;     }     //create the symbol using the address because we have no symbol     _stprintf_s(lpszSymbol, BufSizeTCHARs, _T("0x%08X"), fnAddress);     return FALSE; } BOOL CMemLeakDetect::symSourceInfoFromAddress(ADDR address, TCHAR* lpszSourceInfo) {     BOOL           ret = FALSE;     IMAGE_LN  lineInfo;     DWORD          dwDisp;     TCHAR          lpModuleInfo[MLD_MAX_NAME_LENGTH] = MLD_TRACEINFO_EMPTY;     _tcscpy_s( lpszSourceInfo, MLD_MAX_NAME_LENGTH, MLD_TRACEINFO_NOSYMBOL);     memset( &lineInfo, NULL, sizeof( IMAGEHLP_LINE ) );     lineInfo.SizeOfStruct = sizeof( IMAGEHLP_LINE );     if ( SymGetLineFromAddr( m_hProcess, address, &dwDisp, &lineInfo ) )     {        // Using the "sourcefile(linenumber)" format #ifdef UNICODE         wchar_t dest[1024] ;         int len = (int)strlen((char *)lineInfo.FileName) + 1 ;         MultiByteToWideChar(CP_ACP, 0, (char *)lineInfo.FileName, len, dest, len) ;         _stprintf_s(lpszSourceInfo, MLD_MAX_NAME_LENGTH, _T("%s(%d): 0x%08X"), dest, lineInfo.LineNumber, address );//  <--- Size of the char thing. #else         _stprintf_s(lpszSourceInfo, MLD_MAX_NAME_LENGTH, _T("%s(%d): 0x%08X"), lineInfo.FileName, lineInfo.LineNumber, address );// <--- Size of the char thing. #endif         ret = TRUE;     }     else     {         // Using the "modulename!address" format         symModuleNameFromAddress( address, lpModuleInfo );         if ( lpModuleInfo[0] == _T('?') || lpModuleInfo[0] == _T('\0'))         {             // Using the "address" format             _stprintf_s(lpszSourceInfo,MLD_MAX_NAME_LENGTH,  _T("0x%p"), lpModuleInfo, address );   // Tim ???         }         else         {             _stprintf_s(lpszSourceInfo, MLD_MAX_NAME_LENGTH, _T("%sdll! 0x%08X"), lpModuleInfo, address );         }         ret = FALSE;     }     //     return ret; } BOOL CMemLeakDetect::symModuleNameFromAddress( ADDR address, TCHAR* lpszModule ) {     BOOL              ret = FALSE;     IMAGEHLP_MODULE   moduleInfo;     ::ZeroMemory( &moduleInfo, sizeof(IMAGEHLP_MODULE) );     moduleInfo.SizeOfStruct = sizeof(IMAGEHLP_MODULE);     if ( SymGetModuleInfo( m_hProcess, (ADDR)address, &moduleInfo ) )     {         // Note. IMAGEHLP_MODULE::ModuleName seems to be hardcoded as 32 char/wchar_t (VS2008). #ifdef UNICODE         int len = (int)_tcslen(lpszModule) + 1 ;         char dest[1024] ;         WideCharToMultiByte( CP_ACP, 0, lpszModule, -1, dest, len, NULL, NULL );         strcpy_s(moduleInfo.ModuleName, 32, dest);  // bloody ANSI! #else         strcpy_s(moduleInfo.ModuleName, 32, lpszModule); #endif         ret = TRUE;     }     else     {         _tcscpy_s( lpszModule, MLD_MAX_NAME_LENGTH, MLD_TRACEINFO_NOSYMBOL);     }          return ret; } static void DeleteOldTempFiles(const TCHAR dir[], const TCHAR type[], int days) {     union tu     {         FILETIME fileTime;         ULARGE_INTEGER ul;     };  // Seems simplest way to do the Win32 time manipulation.     WIN32_FIND_DATA FindFileData;     HANDLE hFind = INVALID_HANDLE_VALUE;     TCHAR curdir[MAX_PATH];     GetCurrentDirectory(MAX_PATH, curdir);  // Ignoring failure!     SetCurrentDirectory(dir);     hFind = FindFirstFile(type, &FindFileData);     if (hFind != INVALID_HANDLE_VALUE)     {         SYSTEMTIME st;         tu ft;         GetSystemTime(&st);         SystemTimeToFileTime(&st, &ft.fileTime);         while (FindNextFile(hFind, &FindFileData) != 0)         {             if (FILE_ATTRIBUTE_DIRECTORY != FindFileData.dwFileAttributes)             {                 tu t;                 t.fileTime = FindFileData.ftCreationTime;                 _int64 delta = (ft.ul.QuadPart - t.ul.QuadPart) / 10000000; // Seconds.                 int ddays = (int)(delta /= (24 * 3600));                 //_tprintf (TEXT("Next file name is: %s delta days %d\n"), FindFileData.cFileName, ddays);                 if (ddays >= days)                 {                     //_tprintf (TEXT("Next file to delete is: %s delta days %d\n"), FindFileData.cFileName, ddays);                     DeleteFile(FindFileData.cFileName);                 }                 //else                 //{                 //  _tprintf (TEXT("Skipping: %s delta days %d\n"), FindFileData.cFileName, ddays);                 //}             }         }         FindClose(hFind);     }     SetCurrentDirectory(curdir); } #endif