/*
   Copyright (C) 2003, 2005, 2006 MySQL AB
    All rights reserved. Use is subject to license terms.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   This program 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 General Public License, version 2.0, for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#ifndef FS_REF_H
#define FS_REF_H

#include <ndbd_exit_codes.h>
#include "SignalData.hpp"

/**
 * FsRef - Common signal class for all REF signals sent from Ndbfs
 * GSN_FSCLOSEREF, GSN_FSOPENREF, GSN_FSWRITEREF, GSN_FSREADREF,
 * GSN_FSSYNCREF
 */


/**
 * 
 * SENDER:  Ndbfs
 * RECIVER: 
 */
struct FsRef {

  friend bool printFSREF(FILE * output, const Uint32 * theData, Uint32 len, Uint16 receiverBlockNo);

  /**
   * Enum type for errorCode
   */
  STATIC_CONST( FS_ERR_BIT = 0x8000 );

  enum NdbfsErrorCodeType {
    fsErrNone=0,
    fsErrEnvironmentError=NDBD_EXIT_AFS_ENVIRONMENT,
    fsErrTemporaryNotAccessible=NDBD_EXIT_AFS_TEMP_NO_ACCESS,
    fsErrNoSpaceLeftOnDevice=NDBD_EXIT_AFS_DISK_FULL,
    fsErrPermissionDenied=NDBD_EXIT_AFS_PERMISSION_DENIED,
    fsErrInvalidParameters=NDBD_EXIT_AFS_INVALID_PARAM,
    fsErrUnknown=NDBD_EXIT_AFS_UNKNOWN,
    fsErrNoMoreResources=NDBD_EXIT_AFS_NO_MORE_RESOURCES,
    fsErrFileDoesNotExist=NDBD_EXIT_AFS_NO_SUCH_FILE,
    fsErrReadUnderflow = NDBD_EXIT_AFS_READ_UNDERFLOW,
    fsErrFileExists = FS_ERR_BIT |  12,
    fsErrInvalidFileSize = FS_ERR_BIT |  13,
    fsErrOutOfMemory = FS_ERR_BIT |  14,
    fsErrMax
  };
  /**
   * Length of signal
   */
  STATIC_CONST( SignalLength = 4 );

  /**
   * DATA VARIABLES
   */
  UintR userPointer;          // DATA 0
  UintR errorCode;            // DATA 1
  UintR osErrorCode;          // DATA 2
  UintR senderData;

  static NdbfsErrorCodeType getErrorCode(const UintR & errorcode);
  static void setErrorCode(UintR & errorcode, NdbfsErrorCodeType errorcodetype);
  static void setErrorCode(UintR & errorcode, UintR errorcodetype);

};


inline
FsRef::NdbfsErrorCodeType 
FsRef::getErrorCode(const UintR & errorcode){
  return (NdbfsErrorCodeType)errorcode;
}

inline
void
FsRef::setErrorCode(UintR & errorcode, NdbfsErrorCodeType errorcodetype){
  ASSERT_MAX(errorcodetype, fsErrMax, "FsRef::setErrorCode");
  errorcode = (UintR)errorcodetype;
}

inline
void
FsRef::setErrorCode(UintR & errorcode, UintR errorcodetype){
  ASSERT_MAX(errorcodetype, fsErrMax, "FsRef::setErrorCode");
  errorcode = errorcodetype;
}

#endif
