XrdXrootdFileLock.hh

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#ifndef _XROOTD_FILELOCK_H_
#define _XROOTD_FILELOCK_H_
/******************************************************************************/
/*                                                                            */
/*                  X r d X r o o t d F i l e L o c k . h h                   */
/*                                                                            */
/* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University  */
/*   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.                                                 */
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/* 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.                                                  */
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/* 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 */
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/* specific prior written permission of the institution or contributor.       */
/******************************************************************************/

#include "XrdXrootd/XrdXrootdFile.hh"
  
class XrdXrootdFileLock
{
public:

virtual int   Lock(XrdXrootdFile *fp, int force=0) = 0;

virtual void  numLocks(XrdXrootdFile *fp, int &rcnt, int &wcnt) = 0;

virtual int Unlock(XrdXrootdFile *fp) = 0;

            XrdXrootdFileLock() {}
virtual    ~XrdXrootdFileLock() {}
};
#endif