/****************************************************************************
 |
 |  (C) Copyright 1995-1997 Novell, Inc.
 |	All Rights Reserved.
 |
 |	This program is free software; you can redistribute it and/or
 |	modify it under the terms of version 2 of the GNU General Public
 |	License as published by the Free Software Foundation.
 |
 |	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 for more details.
 |
 |	You should have received a copy of the GNU General Public License
 |	along with this program; if not, contact Novell, Inc.
 |
 |	To contact Novell about this file by physical or electronic mail,
 |	you may find current contact information at www.novell.com
 |
 |***************************************************************************
 |
 |	 NetWare Advance File Services (NSS) module
 |
 |---------------------------------------------------------------------------
 |
 | $Author: ying $
 | $Date: 2005-07-08 03:51:03 +0530 (Fri, 08 Jul 2005) $
 |
 | $RCSfile$
 | $Revision: 1098 $
 |
 |---------------------------------------------------------------------------
 |	This module is used to:
 |		This defines all of the primitive BEASTS inside of PSS
 |
 | WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!
 |
 | This header file should ONLY be used for NSS internal development.
 | This includes Semantic Agents (SA) and Loadable Storage Services (LSS).
 | Any other use may cause conflicts which NSS will NOT fix.
 +-------------------------------------------------------------------------*/
#ifndef _COMNDATASTREAM_H_
#define _COMNDATASTREAM_H_

#ifdef __cplusplus
extern "C" {
#endif

/*---------------------------------------------------------------------------
 *	This structure is pointed to by the non-persistent dataStreamInfo pointer
 *	in a file beast.  If a file beast has no Extended attributes or data
 *	streams, this structure will never be present.  However, if the file beast
 *	does have extended attributes or data streams, this structure will be
 *	allocated when the first attempt is made to access this information.
 *
 *	The first attempt to read or modify the data stream info will detect
 *	that dataStreamCount == DSI_COUNT_INVALID, and will calculate at that time
 *	the correct data stream counts and sizes.  All subsequent attempts to
 *	read or modify the info will modify it directly.
 *
 *	Likewise, the extended attribute info is handled the same way.
 *
 *	When the file beast is freed up, this memory will be deallocated.
 *---------------------------------------------------------------------------*/

#define DSI_COUNT_INVALID	-1

typedef struct DataStreamCounts_s
{
	NINT count;			/* Set to DSI_COUNT_INVALID if not initialized */
	QUAD dataSize;
	NINT nameSize;
} DataStreamCounts_s;

typedef	struct DataStreamInfo_s
{
	DataStreamCounts_s dataStream;
	DataStreamCounts_s extAttr;
} DataStreamInfo_s;


STATUS eflProcessDataStreams(
	struct GeneralMsg_s *genMsg,
	File_s *file,
	NINT action,
	struct Xaction_s *xaction);

#ifdef __cplusplus
}
#endif

#endif