84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/* -*- Mode: C; tab-width: 4; 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 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.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/* nsCacheFileStream. The file/disk based implementation of the nsStream class.
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* It basically maps the read write functions to the file equivalents.
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*
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* -Gagan Saksena 09/15/98
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*/
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#ifndef nsCacheFileStream_h__
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#define nsCacheFileStream_h__
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//#include "nsISupports.h"
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#include "nsStream.h"
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#include "prio.h" // PRFileDesc
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/* now using the _real_ nsFileStream */
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#include "nsFileSpec.h"
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#include "nsFileStream.h"
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class nsCacheFileStream: public nsStream
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{
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public:
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nsCacheFileStream(const char* i_Filename);
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virtual ~nsCacheFileStream();
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/*
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NS_IMETHOD QueryInterface(const nsIID& aIID,
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void** aInstancePtr);
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NS_IMETHOD_(nsrefcnt) AddRef(void);
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NS_IMETHOD_(nsrefcnt) Release(void);
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*/
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#ifdef NU_CACHE_FILE_STREAM
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PRFileDesc* FileDesc(void);
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#endif
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PRInt32 Read(void* o_Buffer, PRUint32 i_Len);
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void Reset(void);
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PRInt32 Write(const void* i_Buffer, PRUint32 i_Len);
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protected:
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PRBool Open(void);
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private:
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nsCacheFileStream(const nsCacheFileStream& o);
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nsCacheFileStream& operator=(const nsCacheFileStream& o);
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#ifdef NU_CACHE_FILE_STREAM
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PRFileDesc* m_pFile;
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#else
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nsIOFileStream *m_pFile;
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#endif
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char* m_pFilename;
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};
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#ifdef NU_CACHE_FILE_STREAM
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inline
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PRFileDesc* nsCacheFileStream::FileDesc(void)
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{
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return m_pFile;
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}
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#endif
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#endif // nsCacheFileStream_h__
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