98 lines
2 KiB
C++
98 lines
2 KiB
C++
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/*****************************************************************/
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/** Microsoft Windows for Workgroups **/
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/** Copyright (C) Microsoft Corp., 1991-1992 **/
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/*****************************************************************/
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/* alloc.c --
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*
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* History:
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* 10/06/93 gregj Created.
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* 11/29/93 gregj Added debug instrumentation.
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*
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*/
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#include "npcommon.h"
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#include <npalloc.h>
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#include <netlib.h>
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//====== Memory allocation functions =================================
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// Alloc a chunk of memory, quickly, with no 64k limit on size of
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// individual objects or total object size.
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//
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void * WINAPI MemAlloc(long cb)
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{
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return (void *)::LocalAlloc(LPTR, cb);
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}
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// Realloc one of above. If pb is NULL, then this function will do
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// an alloc for you.
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//
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void * WINAPI MemReAlloc(void * pb, long cb)
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{
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if (pb == NULL)
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return ::MemAlloc(cb);
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return (void *)::LocalReAlloc((HLOCAL)pb, cb, LMEM_MOVEABLE | LMEM_ZEROINIT);
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}
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// Free a chunk of memory alloced or realloced with above routines.
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//
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BOOL WINAPI MemFree(void * pb)
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{
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return ::LocalFree((HLOCAL)pb) ? TRUE : FALSE;
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}
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#ifdef DEBUG
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MEMWATCH::MEMWATCH(LPCSTR lpszLabel)
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: _lpszLabel(lpszLabel)
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{
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_info.pNext = NULL;
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_info.cAllocs = 0;
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_info.cFrees = 0;
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_info.cbAlloc = 0;
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_info.cbMaxAlloc = 0;
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_info.cbTotalAlloc = 0;
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fStats = TRUE;
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MemRegisterWatcher(&_info);
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}
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MEMWATCH::~MEMWATCH()
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{
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MemDeregisterWatcher(&_info);
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if (fStats || ((_info.cAllocs - _info.cFrees) != 0)) {
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if (!fStats) {
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OutputDebugString("Memory leak: ");
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}
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OutputDebugString(_lpszLabel);
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char szBuf[100];
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wsprintf(szBuf, "%d allocs, %d orphans, %d byte footprint, %d byte usage\r\n",
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_info.cAllocs,
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_info.cAllocs - _info.cFrees,
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_info.cbMaxAlloc,
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_info.cbTotalAlloc);
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OutputDebugString(szBuf);
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}
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}
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MemLeak::MemLeak(LPCSTR lpszLabel)
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: MEMWATCH(lpszLabel)
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{
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fStats = FALSE;
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}
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MemOff::MemOff()
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{
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pvContext = MemUpdateOff();
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}
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MemOff::~MemOff()
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{
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MemUpdateContinue(pvContext);
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}
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#endif /* DEBUG */
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