87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Mozilla 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/MPL/
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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.
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*
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* The Initial Developer of the Original Code is Intel Corp.
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* Portions created by Intel Corp. are
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* Copyright (C) 1999, 1999 Intel Corp. All
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* Rights Reserved.
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*
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* Contributor(s): Yixiong Zou <yixiong.zou@intel.com>
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* Carl Wong <carl.wong@intel.com>
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*/
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#ifndef _NET_CACHEDDISKDATA_H_
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#define _NET_CACHEDDISKDATA_H_
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#include "nsINetDataCacheRecord.h"
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#include "nsCOMPtr.h"
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#include "nsIDBAccessor.h"
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#include "prtypes.h"
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#include "nsILoadGroup.h"
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#include "nsIChannel.h"
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#include "nsNetDiskCache.h"
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class nsDiskCacheRecord : public nsINetDataCacheRecord
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSINETDATACACHERECORD
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// Notification to us that the cache file was just written to.
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// This is used to update the nsIFile (mFile) that we hold
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// after we wrote new data to the file. This is needed because
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// if we write to the file and the filesize/date has changed,
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// we need to invalidate the mFile's stat cache.
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NS_IMETHOD WriteComplete();
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protected:
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nsDiskCacheRecord(nsIDBAccessor* db, nsNetDiskCache* aCache) ;
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virtual ~nsDiskCacheRecord() ;
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NS_IMETHOD RetrieveInfo(void* aInfo, PRUint32 aInfoLength) ;
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NS_IMETHOD Init(const char* key, PRUint32 length, PRInt32 ID) ;
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nsresult GenInfo(void) ;
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// The mFile we store might be out of date. Atlease
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// we know that our implementation of nsIFile stores
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// stat data in a cache. We need to invalidate that cache
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// at critical points or atleast when we know we changed
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// file info.
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NS_IMETHOD UpdateFileInfo();
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private:
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char* mKey ;
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PRUint32 mKeyLength ;
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PRInt32 mRecordID ;
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char* mMetaData ;
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PRUint32 mMetaDataLength ;
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nsCOMPtr<nsIFile> mFile ;
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nsCOMPtr<nsIDBAccessor> mDB ;
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void* mInfo ;
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PRUint32 mInfoSize ;
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PRUint32 mNumChannels ;
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nsNetDiskCache* mDiskCache ;
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friend class nsDiskCacheRecordChannel ;
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friend class nsDBEnumerator ;
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friend class nsNetDiskCache ;
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} ;
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#endif // _NET_CACHEDDISKDATA_H_
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