Leaked source code of windows server 2003
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124 lines
2.5 KiB

/*==========================================================================
*
* Copyright (C) 1994-1997 Microsoft Corporation. All Rights Reserved.
*
* File: mydebug.c
* Content: debugging printf - stolen from direct draw.
*@@BEGIN_MSINTERNAL
* History:
* Date By Reason
* ==== == ======
* aarono splurp.
* 6/6/98 aarono Debug support for link statistics
*@@END_MSINTERNAL
*
***************************************************************************/
#undef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "newdpf.h"
#include "mydebug.h"
#include "bilink.h"
#include <stdarg.h>
#ifdef DEBUG
typedef struct _MEM_BLOCK {
union {
BILINK Bilink;
struct _FB {
struct _MEM_BLOCK *pNext;
struct _MEM_BLOCK *pPrev;
} FB;
};
UINT len;
UINT tmAlloc;
CHAR data[4];
} MEM_BLOCK, *PMEM_BLOCK;
LONG TotalMem = 0;
struct _MEMLIST {
union{
BILINK Bilink;
struct _FB FB;
};
} MemList={(BILINK *)&MemList,(BILINK *)&MemList};
UINT nInit=0xFFFFFFFF;
CRITICAL_SECTION MEM_CS;
VOID My_GlobalAllocInit()
{
if(!InterlockedIncrement(&nInit)){
InitializeCriticalSection(&MEM_CS);
}
}
VOID My_GlobalAllocDeInit()
{
if(InterlockedDecrement(&nInit)&0x80000000){
DeleteCriticalSection(&MEM_CS);
}
}
HGLOBAL
My_GlobalAlloc(
UINT uFlags,
DWORD dwBytes
)
{
PMEM_BLOCK pMem;
UINT lTotalMem;
pMem=(PMEM_BLOCK)GlobalAlloc(uFlags,dwBytes+sizeof(MEM_BLOCK)-4);
pMem->len=dwBytes;
pMem->tmAlloc=GetTickCount();
EnterCriticalSection(&MEM_CS);
InsertAfter(&pMem->Bilink, &MemList.Bilink);
TotalMem+=dwBytes;
lTotalMem=TotalMem;
LeaveCriticalSection(&MEM_CS);
DPF(9,"GlobalAlloc: Allocated %d TotalMem %d\n",dwBytes, lTotalMem);
{
IN_WRITESTATS InWS;
memset((PVOID)&InWS,0xFF,sizeof(IN_WRITESTATS));
InWS.stat_USER2=lTotalMem;
DbgWriteStats(&InWS);
}
return((HGLOBAL)&pMem->data[0]);
}
HGLOBAL
My_GlobalFree(
HGLOBAL hMem
)
{
PUCHAR pData=(PUCHAR)(hMem);
PMEM_BLOCK pMem;
UINT lTotalMem;
UINT dwBytes;
pMem=CONTAINING_RECORD(pData, MEM_BLOCK, data);
EnterCriticalSection(&MEM_CS);
Delete(&pMem->Bilink);
TotalMem-=pMem->len;
dwBytes=pMem->len;
lTotalMem=TotalMem;
LeaveCriticalSection(&MEM_CS);
DPF(9,"GlobalFree: Freed %d TotalMem %d\n",dwBytes,lTotalMem);
{
IN_WRITESTATS InWS;
memset((PVOID)&InWS,0xFF,sizeof(IN_WRITESTATS));
InWS.stat_USER2=lTotalMem;
DbgWriteStats(&InWS);
}
return GlobalFree(pMem);
}
#endif /* DEBUG */