XrdOssCsiTagstore.hh

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#ifndef _XRDOSSCSITAGSTORE_H
#define _XRDOSSCSITAGSTORE_H
/******************************************************************************/
/*                                                                            */
/*                X r d O s s C s i T a g s t o r e . h h                     */
/*                                                                            */
/* (C) Copyright 2020 CERN.                                                   */
/*                                                                            */
/* This file is part of the XRootD software suite.                            */
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/* XRootD is free software: you can redistribute it and/or modify it under    */
/* the terms of the GNU Lesser General Public License as published by the     */
/* Free Software Foundation, either version 3 of the License, or (at your     */
/* option) any later version.                                                 */
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/* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public       */
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/******************************************************************************/
 
#include "XrdOss/XrdOss.hh"
 
class XrdOssCsiTagstore
{
public:
 
   virtual ~XrdOssCsiTagstore() { }
 
   virtual int Open(const char *, off_t, int, XrdOucEnv &)=0;
   virtual int Close()=0;
 
   virtual void Flush()=0;
   virtual int Fsync()=0;
 
   virtual ssize_t WriteTags(const uint32_t *, off_t, size_t)=0;
   virtual ssize_t ReadTags(uint32_t *, off_t, size_t)=0;
 
   virtual off_t GetTrackedTagSize() const=0;
   virtual off_t GetTrackedDataSize() const=0;
   virtual bool IsVerified() const=0;
 
   virtual int SetTrackedSize(off_t)=0;
   virtual int SetUnverified()=0;
   virtual int ResetSizes(off_t)=0;
   virtual int Truncate(off_t,bool)=0;
 
   // if this flag is set in the header, it indicates the tags
   // are for verified checksums.
   // if it is unset it means the tags are unverified
   static const uint32_t csVer = 0x00000001;
};
 
#endif