collate.h

上一个上传的有问题,这个是好的。visopsys包括系统内核和GUI的全部SOURCE code ,还包括一些基本的docs文档。里面src子目录对应所有SOURCE code.对于想研究操作系统的朋

/*
 * collate.h - Defines for NTFS collation handling.  Part of the Linux-NTFS
 *             project.
 *
 * Copyright (c) 2004 Anton Altaparmakov
 * Copyright (c) 2005 Yura Pakhuchiy
 *
 * This program/include file is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program/include file 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 (in the main directory of the Linux-NTFS
 * distribution in the file COPYING); if not, write to the Free Software
 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _NTFS_COLLATE_H
#define _NTFS_COLLATE_H

#include "types.h"
#include "volume.h"

#define NTFS_COLLATION_ERROR -2

/**
 * ntfs_is_collation_rule_supported -
 * @cr:
 *
 * Description...
 *
 * Returns:
 */
static inline BOOL ntfs_is_collation_rule_supported(COLLATION_RULES cr)
{
	int i;

	/*
	 * FIXME:  At the moment we only support COLLATION_BINARY,
	 * COLLATION_NTOFS_ULONG and COLLATION_FILE_NAME so we return false
	 * for everything else.
	 */
	if (cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG &&
			cr != COLLATION_FILE_NAME)
		return FALSE;
	i = le32_to_cpu(cr);
	if (((i >= 0) && (i <= 0x02)) ||
			((i >= 0x10) && (i <= 0x13)))
		return TRUE;
	return FALSE;
}

extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULES cr,
		const void *data1, const int data1_len,
		const void *data2, const int data2_len);

#endif /* _NTFS_COLLATE_H */