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/******************************Module*Header*******************************\
* Module Name: bdd.h
*
* Basic Display Driver memory allocation, deletion, and tracking
*
*
* Copyright (c) 2010 Microsoft Corporation
\**************************************************************************/
#include "BDD.hxx"
#pragma code_seg("PAGE")
//
// New and delete operators
//
_When_((PoolType & NonPagedPoolMustSucceed) != 0,
__drv_reportError("Must succeed pool allocations are forbidden. "
"Allocation failures cause a system crash"))
void* __cdecl operator new(size_t Size, POOL_TYPE PoolType)
{
PAGED_CODE();
Size = (Size != 0) ? Size : 1;
// Note that ExAllocatePool2 replaces ExAllocatePool* APIs in OS's starting
// with Windows 10, version 2004. If your driver targets previous versions it
// should use ExAllocatePoolZero instead.
void* pObject = ExAllocatePool2(PoolType, Size, BDDTAG);
#if DBG
if (pObject != NULL)
{
RtlFillMemory(pObject, Size, 0xCD);
}
#endif // DBG
return pObject;
}
_When_((PoolType & NonPagedPoolMustSucceed) != 0,
__drv_reportError("Must succeed pool allocations are forbidden. "
"Allocation failures cause a system crash"))
void* __cdecl operator new[](size_t Size, POOL_TYPE PoolType)
{
PAGED_CODE();
Size = (Size != 0) ? Size : 1;
void* pObject = ExAllocatePool2(PoolType, Size, BDDTAG);
#if DBG
if (pObject != NULL)
{
RtlFillMemory(pObject, Size, 0xCD);
}
#endif // DBG
return pObject;
}
void __cdecl operator delete(void* pObject)
{
PAGED_CODE();
if (pObject != NULL)
{
ExFreePool(pObject);
}
}
//
// size_t version is needed for VS2015(C++ 14).
//
void __cdecl operator delete(void* pObject, size_t s)
{
PAGED_CODE();
UNREFERENCED_PARAMETER( s );
::operator delete( pObject );
}
void __cdecl operator delete[](void* pObject)
{
PAGED_CODE();
if (pObject != NULL)
{
ExFreePool(pObject);
}
}
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