Leaked source code of windows server 2003
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/* (C) 1997-1999 Microsoft Corp.
* * file : SList.h * authors : Christos Tsollis, Erik Mavrinac * * description: Interface definition to a dynamically-resizing list/queue * data type. The "key" values in the list are unsigned ints of whatever the * default word size is, so the elements of the array will be word-aligned. * These elements can be cast into whatever form is needed. Associated is * a void * for data asssociated with the "key". */
#ifndef __SLIST_H
#define __SLIST_H
#define SListDefaultNumEntries 4
/*
* Types */
typedef struct{ UINT_PTR Key; void *Value;} _SListNode;
typedef struct{ unsigned NEntries; // current # of entries in the list
unsigned MaxEntries; // max # of entries that the array can hold
unsigned HeadOffset; // Offset of the 1st entry in the circular array
unsigned CurrOffset; // Iterator value
_SListNode *Entries; // Circular array of entries
} _SListHeader;
typedef struct{ _SListHeader Hdr; _SListNode InitialList[SListDefaultNumEntries];} SList, *PSList;
/*
* API prototypes. */
BOOLEAN SListAppend(PSList, UINT_PTR, void *);void SListDestroy(PSList);BOOLEAN SListGetByKey(PSList, UINT_PTR, void **);void SListInit(PSList, unsigned);BOOLEAN SListIterate(PSList, UINT_PTR *, void **);BOOLEAN SListPrepend(PSList, UINT_PTR, void *);void SListRemove(PSList, UINT_PTR, void **);void SListRemoveFirst(PSList, UINT_PTR *, void **);void SListRemoveLast(PSList, UINT_PTR *, void **);
/*
* API functions implemented as macros. */
// void SListResetIteration(PSList); // Resets iteration counter.
#define SListResetIteration(pSL) (pSL)->Hdr.CurrOffset = 0xFFFFFFFF
// unsigned SListGetEntries(PSList); // Ret. # entries in list.
#define SListGetEntries(pSL) ((pSL)->Hdr.NEntries)
// void SListClear(PSList);
#define SListClear(pSL) { \
(pSL)->Hdr.NEntries = (pSL)->Hdr.HeadOffset = 0; \ (pSL)->Hdr.CurrOffset = 0xFFFFFFFF; \}
// BOOLEAN SListIsEmpty(PSList);
#define SListIsEmpty(pSL) ((pSL)->Hdr.NEntries == 0)
#endif // !defined(__SLIST_H)
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