Chloe M.
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
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* Copyright (c) 2026, Chloe M.
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* Provided under the BSD-3 clause.
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*
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* Description: Object manager cache
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* Author: Chloe M.
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*/
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#ifndef _OB_CACHE_H_
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#define _OB_CACHE_H_ 1
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#include <stdef.h>
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#include <ob/object.h>
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/*
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* An object cache allows deallocated objects to be recycled without
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* the overhead of true deallocation and reallocation.
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*
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* @First: First cache entry
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* @Last: Last cache entry
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* @EntryCount: Number of entires in the cache
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*/
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typedef struct {
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ST_OBJECT *First;
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ST_OBJECT *Last;
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USIZE EntryCount;
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} OBJECT_CACHE;
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extern OBJECT_CACHE gObCache;
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/*
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* Initialize object cache
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*
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* @Cache: Object cache to initialize
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*/
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VOID ObInitCache(OBJECT_CACHE *Cache);
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/*
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* Reclaim object to cache if the reference count is
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* zero.
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*
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* @Cache: Cache to reclaim to
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* @Object: Object to reclaim
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*/
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VOID ObReclaimToCache(OBJECT_CACHE *Cache, ST_OBJECT *Object);
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/*
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* Pop an entry for a zeroed object from the cache
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*
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* @Cache: Cache to pop from
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*
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* Returns an entry on success, otherwise NULL on
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* failure
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*/
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ST_OBJECT *ObPopFromCache(OBJECT_CACHE *Cache);
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#endif /* !_OB_CACHE_H_ */
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