XrdCksXAttr.hh

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#ifndef __XRDCKSXATTR_HH__
#define __XRDCKSXATTR_HH__
/******************************************************************************/
/*                                                                            */
/*                        X r d C k s X A t t r . h h                         */
/*                                                                            */
/* (c) 2011 by the Board of Trustees of the Leland Stanford, Jr., University  */
/*                            All Rights Reserved                             */
/*   Produced by Andrew Hanushevsky for Stanford University under contract    */
/*              DE-AC02-76-SFO0515 with the Department of Energy              */
/*                                                                            */
/* This file is part of the XRootD software suite.                            */
/*                                                                            */
/* 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.                                                 */
/*                                                                            */
/* XRootD is distributed in the hope that it will be useful, but WITHOUT      */
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or      */
/* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public       */
/* License for more details.                                                  */
/*                                                                            */
/* You should have received a copy of the GNU Lesser General Public License   */
/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file  */
/* COPYING (GPL license).  If not, see <http://www.gnu.org/licenses/>.        */
/*                                                                            */
/* The copyright holder's institutional names and contributor's names may not */
/* be used to endorse or promote products derived from this software without  */
/* specific prior written permission of the institution or contributor.       */
/******************************************************************************/
 
#include <cinttypes>
#include <netinet/in.h>
#include <sys/types.h>
 
#include "XrdCks/XrdCksData.hh"
#include "XrdSys/XrdSysPlatform.hh"
 
/* XrdCksXAttr encapsulates the extended attributes needed to save a checksum.
*/
  
class XrdCksXAttr
{
public:
 
XrdCksData Cks;         // Check sum information
 
/* postGet() will put fmTime and csTime in host byte order (see preSet()).
*/
       int             postGet(int Result)
                              {if (Result > 0)
                                  {Cks.fmTime = ntohll(Cks.fmTime);
                                   Cks.csTime = ntohl (Cks.csTime);
                                  }
                               return Result;
                              }
 
/* preSet() will put fmTime and csTime in network byte order to allow the
            attribute to be copied to different architectures and still work.
*/
       XrdCksXAttr    *preSet(XrdCksXAttr &tmp)
                             {memcpy(&tmp.Cks, &Cks, sizeof(Cks));
                              tmp.Cks.fmTime = htonll(Cks.fmTime);
                              tmp.Cks.csTime = htonl (Cks.csTime);
                              return &tmp;
                             }
 
/* Name() returns the extended attribute name for this object.
*/
       const char     *Name() {if (!(*VarName))    //01234567
                                  {strcpy(VarName,  "XrdCks.");
                                   strcpy(VarName+7, Cks.Name);
                                  }
                               return VarName;
                              }
 
/* sizeGet() and sizeSet() return the actual size of the object is used.
*/
       int             sizeGet() {return sizeof(Cks);}
       int             sizeSet() {return sizeof(Cks);}
 
       XrdCksXAttr() {*VarName = 0;}
      ~XrdCksXAttr() {}
 
private:
 
char VarName[XrdCksData::NameSize+8];
};
#endif