Source code of Windows XP (NT5)
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108 lines
1.7 KiB

/*++
Copyright (c) 1993 Microsoft Corporation
Module Name:
BILINK.H
Abstract:
Management for doubly linked lists
Author:
George Joy
Environment:
32-bit 'C'
Revision History:
--*/// BILINK.H
// Make sure all variations of DEBUG are defined if any one is
#if defined(DEBUG) || defined(DBG) || defined(_DEBUG)
#if !defined(DBG)
#define DBG
#endif
#if !defined(DEBUG)
#define DEBUG
#endif
#if !defined(_DEBUG)
#define _DEBUG
#endif
#endif
#ifdef __cplusplus
extern "C"
{
#endif // __cplusplus
#ifndef _BILINK_
#define _BILINK_
#if !defined(offsetof)
#define offsetof(type, field) ((int)(&((type *)0)->field))
#endif
#ifndef CONTAINING_RECORD
#define CONTAINING_RECORD(address,type,field) \
((type *)((PCHAR)(address) - (UINT_PTR)(&((type *)0)->field)))
#endif // CONTAINING_RECORD
typedef struct BILINK {
struct BILINK *next;
struct BILINK *prev;
void *pvObject;
} BILINK;
/* XLATOFF */
#define EMPTY_BILINK(_pBilink) ((_pBilink)->next==(_pBilink))
#ifdef DEBUG
#define ASSERT_EMPTY_BILINK(_b) ASSERT((_b)->next==(_b))
#else
#define ASSERT_EMPTY_BILINK(_b)
#endif
// This only works for BILINKS that are the first item in a structure.
#define BilinkToList( _pBilink ) \
(_pBilink)->prev->next=NULL;
#define InitBilink( _pBilink, _pvObject ) \
(_pBilink)->prev=(_pBilink)->next=(_pBilink); (_pBilink)->pvObject = _pvObject;
#ifdef DEBUG
int FindObject(
BILINK *link,
BILINK *list
);
#endif
void InsertAfter(
BILINK *in,
BILINK *after
);
void InsertBefore(
BILINK *in,
BILINK *before
);
void Delete(
BILINK *p
);
/* XLATON */
#endif
#ifdef __cplusplus
}
#endif // __cplusplus