135 lines
2.9 KiB
C++
135 lines
2.9 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 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.org code.
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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 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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/* The nsFFObject class represent a single object block that is the smallest
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* page unit on the flat file. This class is part of the flat file cache architecture.
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* It consists of the offset of the block and the size in use.
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* -Gagan Saksena 09/15/98 */
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#ifndef nsFFObject_h__
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#define nsFFObject_h__
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#include "prtypes.h"
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class nsFFObject
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{
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public:
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nsFFObject(
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PRUint32 i_ID,
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PRUint32 i_Offset,
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PRUint32 i_Size = 0);
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virtual ~nsFFObject();
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PRBool Add(const nsFFObject* i_object);
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PRUint32 ID(void) const;
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void ID(const PRUint32 i_ID);
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nsFFObject* Next(void) const;
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void Next(nsFFObject* io_pNext);
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PRUint32 Offset(void) const;
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void Offset(const PRUint32 i_offset);
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PRUint32 Size(void) const;
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void Size(const PRUint32 i_Size);
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PRUint32 TotalSize(void) const;
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protected:
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private:
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nsFFObject(const nsFFObject& o);
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nsFFObject& operator=(const nsFFObject& o);
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PRUint32 m_ID;
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PRUint32 m_Offset;
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PRUint32 m_Size;
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nsFFObject* m_pNext;
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};
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inline
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PRUint32 nsFFObject::ID(void) const
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{
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return m_ID;
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}
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inline
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void nsFFObject::ID(const PRUint32 i_ID)
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{
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m_ID = i_ID;
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}
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inline
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nsFFObject* nsFFObject::Next(void) const
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{
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return m_pNext;
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}
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inline
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void nsFFObject::Next(nsFFObject* io_pNext)
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{
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if (io_pNext)
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io_pNext->ID(m_ID);
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m_pNext = io_pNext;
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// Overlap check! //TODO
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//PR_ASSERT(io_pNext->Offset() > m_Offset + m_Size) ||
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// (io_pNext->Offset() + io_pNext->Size() < m_Offset)
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}
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inline
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PRUint32 nsFFObject::Offset(void) const
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{
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return m_Offset;
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}
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inline
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void nsFFObject::Offset(const PRUint32 i_Offset)
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{
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m_Offset = i_Offset;
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//TODO - overlap check.
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}
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inline
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PRUint32 nsFFObject::Size(void) const
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{
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return m_Size;
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}
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inline
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void nsFFObject::Size(const PRUint32 i_Size)
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{
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m_Size = i_Size;
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//TODO - Overlap check.
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}
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inline
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PRUint32 nsFFObject::TotalSize(void) const
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{
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return m_Size + (m_pNext ? m_pNext->TotalSize() : 0);
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}
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#endif // nsFFObject_h__
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