windows-nt/Source/XPSP1/NT/net/qos/pclass/gpc/refcnt.h

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
refcnt.h
Abstract:
Author:
Edward Buchwalter (v-edbuc) 15-Aug-1996
Revision History:
Shreedhar Madhavapeddi (ShreeM) 16-April-1999
Adapted for GPC.
--*/
#ifndef REFCNT_H
#define REFCNT_H
//
// Reference Count Control Block
//
// Elements:
//
// - Count: number of outstanding references
// - Instance: user supplied context
// - UserDeleteFunc: user supplied delete function
//
#define TAG_CNT 16
#define REF_SIG 0x7841eeee
typedef struct
{
ULONG Tag;
LONG Count;
} REF_TAG;
typedef struct reference_count_control
{
INT Count;
PVOID Instance;
VOID (*DeleteHandler)( PVOID );
#if DBG
int Sig;
REF_TAG Tags[TAG_CNT];
CTELock Lock;
#endif
}
REF_CNT, *PREF_CNT;
VOID
ReferenceInit
(
IN PREF_CNT pRefCnt,
PVOID InstanceHandle,
VOID (*DeleteHandler)( PVOID )
);
VOID
ReferenceAdd
(
IN PREF_CNT pRefCnt
);
VOID
ReferenceAddCount
(
IN PREF_CNT pRefCnt,
IN UINT Count
);
PVOID
ReferenceRemove
(
IN PREF_CNT pRefCnt
);
VOID
ReferenceApiTest
(
VOID
);
#if DBG
VOID ReferenceAddDbg(PREF_CNT pRefCnt, ULONG Tag);
VOID ReferenceRemoveDbg(PREF_CNT pRefCnt, ULONG Tag);
VOID ReferenceCheckForZeroRef(PREF_CNT pRefCnt, ULONG Tag);
#define REFADD(Rc, Tag) ReferenceAddDbg(Rc, Tag)
#define REFDEL(Rc, Tag) ReferenceRemoveDbg(Rc, Tag)
#define REFZEROCHECK(Rc, Tag) ReferenceCheckForZeroRef(Rc, Tag)
#else
#define REFADD(Rc, Tag) ReferenceAdd(Rc);
#define REFDEL(Rc, Tag) ReferenceRemove(Rc);
#define REFZEROCHECK(Rc, Tag)
#endif
#endif