67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
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/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1991 **/
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/**********************************************************************/
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/*
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heapdbg.hxx
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Win3 Heap Manager debug aid
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FILE HISTORY:
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DavidHov 11/22/91 Created
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KeithMo 21-Apr-1992 Added multi-level stack backtrace.
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KeithMo 12-Aug-1992 Robustified stack backtrace a bit.
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*/
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#ifdef HEAPDEBUG
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//
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// This manifest constant controls the "depth" of the stack backtrace
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// displayed when heap residue exists after an application has
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// terminated.
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//
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// This value *must* be no greater than MAX_STACK_DEPTH (as
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// #defined in NTRTL.H (currently 16, should be plenty).
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//
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// KEEP IN MIND THAT EACH BACKTRACE LEVEL REQUIRES AN ADDITIONAL
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// FOUR BYTES OF STORAGE FOR *EVERY* HEAP ALLOCATION BLOCK!!
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//
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#define RESIDUE_STACK_BACKTRACE_DEPTH 4
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struct HEAPTAG
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{
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struct HEAPTAG * _phtRight, * _phtLeft;
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UINT _uSignature;
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PVOID _pvRetAddr[RESIDUE_STACK_BACKTRACE_DEPTH];
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UINT _cFrames;
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UINT _usSize;
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VOID Init()
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{
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_phtLeft = _phtRight = this;
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}
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VOID Link( HEAPTAG * phtAfter )
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{
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_phtLeft = phtAfter;
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_phtRight = phtAfter->_phtRight;
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_phtRight->_phtLeft = this;
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phtAfter->_phtRight = this;
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}
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VOID Unlink()
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{
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_phtRight->_phtLeft = _phtLeft;
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_phtLeft->_phtRight = _phtRight;
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Init();
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}
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};
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extern HEAPTAG * pHeapBase;
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#endif // HEAPDEBUG
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extern VOID HeapResidueIter( UINT cMaxResidueBlocksToDump,
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BOOL fBreakIfResidue );
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