81423c91c7
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20832 a95241bf-73f2-0310-859d-f6bbb57e9c96
104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
/*
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* Copyright 2007, Hugo Santos. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Hugo Santos, hugosantos@gmail.com
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*/
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#ifndef _SLAB_SLAB_H_
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#define _SLAB_SLAB_H_
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#ifdef __cplusplus
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#include <slab/Backend.h>
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#include <slab/Base.h>
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#include <slab/Depot.h>
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#include <slab/MergedStrategy.h>
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#include <slab/HashStrategy.h>
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#include <slab/Utilities.h>
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extern "C" {
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#endif
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enum {
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CACHE_DONT_SLEEP = 1 << 0,
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CACHE_ALIGN_TO_TOTAL = 1 << 16,
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};
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typedef void *object_cache_t;
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object_cache_t
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object_cache_create(const char *name, size_t object_size, size_t alignment,
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void (*_constructor)(void *, void *), void (*_destructor)(void *, void *),
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void *cookie);
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void *object_cache_alloc(object_cache_t cache);
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void *object_cache_alloc_etc(object_cache_t cache, uint32_t flags);
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void object_cache_free(object_cache_t cache, void *object);
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void object_cache_destroy(object_cache_t cache);
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#ifdef __cplusplus
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}
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template<typename CacheType>
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class LocalCache : public CacheType, protected base_depot {
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public:
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typedef LocalCache<CacheType> ThisType;
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typedef typename CacheType::Constructor Constructor;
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typedef typename CacheType::Destructor Destructor;
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LocalCache(const char *name, size_t objectSize, size_t alignment,
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Constructor _constructor, Destructor _destructor, void *_cookie)
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: CacheType(name, objectSize, alignment, _constructor, _destructor,
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_cookie)
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{
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fStatus = base_depot_init(this, _ReturnObject);
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}
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~LocalCache()
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{
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base_depot_destroy(this);
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}
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status_t InitCheck() const { return fStatus; }
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void *Alloc(uint32_t flags)
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{
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void *object = base_depot_obtain_from_store(this, base_depot_cpu(this));
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if (object == NULL)
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object = CacheType::AllocateObject(flags);
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return object;
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}
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void Free(void *object)
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{
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if (!base_depot_return_to_store(this, base_depot_cpu(this), object))
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CacheType::ReturnObject(object);
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}
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void Destroy()
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{
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base_depot_make_empty(this);
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}
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private:
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void ReturnObject(void *object)
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{
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CacheType::ReturnObject(object);
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}
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static void _ReturnObject(base_depot *self, void *object)
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{
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static_cast<ThisType *>(self)->ReturnObject(object);
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}
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status_t fStatus;
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};
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#endif /* __cplusplus */
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#endif
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