prj/tech/libsrc/lgalloc/membase.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // $Source: x:/prj/tech/libsrc/lgalloc/RCS/membase.h $
   3 // $Author: TOML $
   4 // $Date: 1998/06/10 13:58:03 $
   5 // $Revision: 1.4 $
   6 //
   7
   8 #ifndef __MEMBASE_H
   9 #define __MEMBASE_H
  10
  11 #include <comtools.h>
  12 #include <allocapi.h>
  13
  14 ///////////////////////////////////////////////////////////////////////////////
  15 //
  16 // CLASS: cMallocBase
  17 //
  18 // Provides core allocator chaining functionality, some basic implementations
  19 //
  20
  21 class cMallocBase : public IAllocator
  22 {
  23 public:
  24     ///////////////////////////////////
  25     //
  26     // Constructor and destructor
  27     //
  28
  29     cMallocBase();
  30     ~cMallocBase();
  31
  32     ///////////////////////////////////
  33     //
  34     // Set/Get next in chain
  35     //
  36     void SetNext(IAllocator *);
  37     IAllocator * GetNext();
  38
  39     ///////////////////////////////////
  40     //
  41     // IUnknown methods: we do nothing with these!
  42     //
  43     STDMETHOD(QueryInterface)(REFIID, void **);
  44     STDMETHOD_(ULONG, AddRef)();
  45     STDMETHOD_(ULONG, Release)();
  46
  47     ///////////////////////////////////
  48     //
  49     // IMalloc functions
  50     //
  51     STDMETHOD_(void *, Alloc)   (ULONG cb) = 0;
  52     STDMETHOD_(void *, Realloc) (void * pv, ULONG cb) = 0;
  53     STDMETHOD_(void,   Free)    (void * pv) = 0;
  54     STDMETHOD_(ULONG,  GetSize) (void * pv);
  55     STDMETHOD_(int,    DidAlloc)(void * pv);
  56     STDMETHOD_(void,   HeapMinimize)();
  57
  58 #ifndef SHIP
  59     ///////////////////////////////////
  60     //
  61     // IDebugMalloc extensions to IMalloc
  62     //
  63     STDMETHOD_(void *, AllocEx)  (ULONG cb, const char * pszFile, int line);
  64     STDMETHOD_(void *, ReallocEx)(void * pv, ULONG cb, const char * pszFile, int line);
  65     STDMETHOD_(void,   FreeEx)   (void * pv, const char * pszFile, int line);
  66
  67     STDMETHOD (VerifyAlloc)(void * pv);
  68     STDMETHOD (VerifyHeap)();
  69
  70     STDMETHOD_(void, DumpHeapInfo)();
  71
  72     STDMETHOD_(void, DumpStats)();
  73     STDMETHOD_(void, DumpBlocks)();
  74     STDMETHOD_(void, DumpModules)();
  75
  76     STDMETHOD_(void, PushCredit)(const char * pszFile, int line);
  77     STDMETHOD_(void, PopCredit)();
  78 #endif
  79
  80 protected:
  81     IAllocator * m_pNext;
  82
  83 };
  84
  85 ///////////////////////////////////////////////////////////////////////////////
  86 //
  87 // CLASS: cMallocBase, inline functions
  88 //
  89
  90 inline cMallocBase::cMallocBase()
  91    : m_pNext(0)
  92 {
  93
  94 }
  95
  96 ///////////////////////////////////////
  97
  98 inline cMallocBase::~cMallocBase()
  99 {
 100 }
 101
 102 ///////////////////////////////////////
 103
 104 inline void cMallocBase::SetNext(IAllocator * pNext)
 105 {
 106     m_pNext = pNext;
 107 }
 108
 109 ///////////////////////////////////////
 110
 111 inline IAllocator * cMallocBase::GetNext()
 112 {
 113     return m_pNext;
 114 }
 115
 116 ///////////////////////////////////////////////////////////////////////////////
 117
 118 #endif /* !__MEMBASE_H */