зеркало из https://github.com/mozilla/pjs.git
104 строки
3.2 KiB
C++
104 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Scott Furman, fur@netscape.com
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*/
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#ifndef _nsCacheManager_h_
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#define _nsCacheManager_h_
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// 2030f0b0-9567-11d3-90d3-0040056a906e
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#define NS_CACHE_MANAGER_CID \
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{ \
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0x2030f0b0, \
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0x9567, \
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0x11d3, \
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{0x90, 0xd3, 0x00, 0x40, 0x05, 0x6a, 0x90, 0x6e} \
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}
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#include "nsINetDataCacheManager.h"
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#include "nsINetDataCache.h"
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#include "nsCOMPtr.h"
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class nsHashtable;
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class nsReplacementPolicy;
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class nsCachedNetData;
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class nsCacheManager : public nsINetDataCacheManager {
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public:
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nsCacheManager();
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virtual ~nsCacheManager();
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NS_METHOD Init();
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// nsISupports methods
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NS_DECL_ISUPPORTS
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// nsINetDataCacheManager methods
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NS_DECL_NSINETDATACACHEMANAGER
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private:
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// Mapping from cache key to nsCachedNetData, but only for those cache
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// entries with external references, i.e. those referred to outside the
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// cache manager
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nsHashtable* mActiveCacheRecords;
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// Memory cache
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nsCOMPtr<nsINetDataCache> mMemCache;
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// Flat-file database cache; All content aggregated into single disk file
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nsCOMPtr<nsINetDataCache> mFlatCache;
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// stream-as-file cache
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nsCOMPtr<nsINetDataCache> mDiskCache;
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// Unified replacement policy for flat-cache and file-cache
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nsReplacementPolicy* mDiskSpaceManager;
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// Replacement policy for memory cache
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nsReplacementPolicy* mMemSpaceManager;
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// List of caches in search order
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nsINetDataCache* mCacheSearchChain;
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// Combined file/flat cache capacity, in KB
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PRUint32 mDiskCacheCapacity;
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// Memory cache capacity, in KB
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PRUint32 mMemCacheCapacity;
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// Helper routines
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nsresult InitPrefs();
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nsresult GetCacheAndReplacementPolicy( PRUint32 aFlags, nsINetDataCache*& cache, nsReplacementPolicy *&spaceManager );
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protected:
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static nsresult NoteDormant(nsCachedNetData* aEntry);
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static nsresult LimitCacheSize();
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static nsresult LimitMemCacheSize();
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static nsresult LimitDiskCacheSize();
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friend class nsCachedNetData;
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friend class CacheOutputStream;
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};
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#endif // _nsCacheManager_h_
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