fxforward.hpp File Reference

#include "fxforwardum.hpp"

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Typedefs
typedef struct _FX_DRIVER_GLOBALS *	PFX_DRIVER_GLOBALS

Functions
PVOID	FxObjectHandleAlloc (__in PFX_DRIVER_GLOBALS FxDriverGlobals, __in POOL_TYPE PoolType, __in size_t Size, __in ULONG Tag, __in_opt PWDF_OBJECT_ATTRIBUTES Attributes, __in USHORT ExtraSize, __in FxObjectType ObjectType)

Typedef Documentation

PFX_DRIVER_GLOBALS

typedef struct _FX_DRIVER_GLOBALS* PFX_DRIVER_GLOBALS

Definition at line 7 of file fxforward.hpp.

Function Documentation

FxObjectHandleAlloc()

PVOID FxObjectHandleAlloc	(	__in PFX_DRIVER_GLOBALS	FxDriverGlobals,
		__in POOL_TYPE	PoolType,
		__in size_t	Size,
		__in ULONG	Tag,
		__in_opt PWDF_OBJECT_ATTRIBUTES	Attributes,
		__in USHORT	ExtraSize,
		__in FxObjectType	ObjectType
	)

Definition at line 163 of file handleapi.cpp.

{
    PVOID   blob;
    size_t  totalSize;
    NTSTATUS status;
 
    if (Tag == 0) {
        Tag = FxDriverGlobals->Tag;
        ASSERT(Tag != 0);
    }
 
    if (ObjectType == FxObjectTypeInternal) {
        //
        // An internal object might need the debug extension size added to it,
        // but that's it.  No extra size, no FxContextHeader.
        //
        if (FxDriverGlobals->IsObjectDebugOn()) {
            status = RtlSizeTAdd(Size,
                                 FxObjectDebugExtensionSize,
                                 &totalSize);
        }
        else {
            totalSize = Size;
            status = STATUS_SUCCESS;
        }
    }
    else {
        status = FxCalculateObjectTotalSize(FxDriverGlobals,
                                            (USHORT) Size,
                                            ExtraSize,
                                            Attributes,
                                            &totalSize);
    }
 
    if (!NT_SUCCESS(status)) {
        return NULL;
    }
 
    blob = FxPoolAllocateWithTag(FxDriverGlobals, PoolType, totalSize, Tag);
 
    if (blob != NULL) {
        blob = FxObjectAndHandleHeaderInit(
            FxDriverGlobals,
            blob,
            COMPUTE_OBJECT_SIZE((USHORT) Size, ExtraSize),
            Attributes,
            ObjectType
            );
    }
 
    return blob;
}

Referenced by FxObject::operator new(), and FxMemoryBuffer::operator new().