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// -*- Mode: C++ -*- |
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|
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// GiSTstore.h |
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// |
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// Copyright (c) 1996, Regents of the University of California |
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// $Header: /usr/local/devel/GiST/libGiST/libGiST/GiSTstore.h,v 1.1.1.1 1996/08/06 23:47:22 jmh Exp $ |
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|
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#ifndef GISTSTORE_H |
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#define GISTSTORE_H |
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|
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#include "GiSTdefs.h" |
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|
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// GiSTstore is the parent class for storage of GiST pages. GiSTfile is |
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// provided as an example descendant of GiSTstore. |
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|
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class GiSTstore { |
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public: |
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GiSTstore(): isOpen(0) {} |
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virtual void Create(const char *filename)=0; |
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virtual void Open(const char *filename)=0; |
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virtual void Close()=0; |
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virtual void Read(GiSTpage page, char *buf)=0; |
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virtual void Write(GiSTpage page, const char *buf)=0; |
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virtual GiSTpage Allocate()=0; |
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virtual void Deallocate(GiSTpage page)=0; |
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virtual void Sync()=0; |
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virtual int IsOpen() { return isOpen; } |
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virtual int PageSize() const=0; |
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virtual ~GiSTstore() { } |
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protected: |
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void SetOpen(int o) { isOpen=o; } |
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private: |
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int isOpen; |
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}; |
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|
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#endif |
