108 lines
4.2 KiB
C
108 lines
4.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* bitops.h --- Bitmap frobbing code. The byte swapping routines are
|
|
* also included here.
|
|
*
|
|
* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
|
|
*
|
|
* %Begin-Header%
|
|
* This file may be redistributed under the terms of the GNU Public
|
|
* License.
|
|
* %End-Header%
|
|
*
|
|
* i386 bitops operations taken from <asm/bitops.h>, Copyright 1992,
|
|
* Linus Torvalds.
|
|
*/
|
|
|
|
#include <string.h>
|
|
//#include <strings.h>
|
|
|
|
extern int ext2fs_set_bit(unsigned int nr,void * addr);
|
|
extern int ext2fs_clear_bit(unsigned int nr, void * addr);
|
|
extern int ext2fs_test_bit(unsigned int nr, const void * addr);
|
|
extern __u16 ext2fs_swab16(__u16 val);
|
|
extern __u32 ext2fs_swab32(__u32 val);
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
#define ext2fs_cpu_to_le32(x) ext2fs_swab32((x))
|
|
#define ext2fs_le32_to_cpu(x) ext2fs_swab32((x))
|
|
#define ext2fs_cpu_to_le16(x) ext2fs_swab16((x))
|
|
#define ext2fs_le16_to_cpu(x) ext2fs_swab16((x))
|
|
#define ext2fs_cpu_to_be32(x) ((__u32)(x))
|
|
#define ext2fs_be32_to_cpu(x) ((__u32)(x))
|
|
#define ext2fs_cpu_to_be16(x) ((__u16)(x))
|
|
#define ext2fs_be16_to_cpu(x) ((__u16)(x))
|
|
#else
|
|
#define ext2fs_cpu_to_le32(x) ((__u32)(x))
|
|
#define ext2fs_le32_to_cpu(x) ((__u32)(x))
|
|
#define ext2fs_cpu_to_le16(x) ((__u16)(x))
|
|
#define ext2fs_le16_to_cpu(x) ((__u16)(x))
|
|
#define ext2fs_cpu_to_be32(x) ext2fs_swab32((x))
|
|
#define ext2fs_be32_to_cpu(x) ext2fs_swab32((x))
|
|
#define ext2fs_cpu_to_be16(x) ext2fs_swab16((x))
|
|
#define ext2fs_be16_to_cpu(x) ext2fs_swab16((x))
|
|
#endif
|
|
|
|
/*
|
|
* EXT2FS bitmap manipulation routines.
|
|
*/
|
|
|
|
/* Support for sending warning messages from the inline subroutines */
|
|
extern const char *ext2fs_block_string;
|
|
extern const char *ext2fs_inode_string;
|
|
extern const char *ext2fs_mark_string;
|
|
extern const char *ext2fs_unmark_string;
|
|
extern const char *ext2fs_test_string;
|
|
extern void ext2fs_warn_bitmap(errcode_t errcode, unsigned long arg,
|
|
const char *description);
|
|
extern void ext2fs_warn_bitmap2(ext2fs_generic_bitmap bitmap,
|
|
int code, unsigned long arg);
|
|
|
|
extern int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
|
|
extern int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
|
|
blk_t block);
|
|
extern int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
|
|
|
|
extern int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
|
|
extern int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
|
|
ext2_ino_t inode);
|
|
extern int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
|
|
|
|
extern void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
|
|
blk_t block);
|
|
extern void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
|
|
blk_t block);
|
|
extern int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
|
|
blk_t block);
|
|
|
|
extern void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
|
|
ext2_ino_t inode);
|
|
extern void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
|
|
ext2_ino_t inode);
|
|
extern int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
|
|
ext2_ino_t inode);
|
|
extern blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap);
|
|
extern ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap);
|
|
extern blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap);
|
|
extern ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap);
|
|
|
|
extern void ext2fs_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
|
|
blk_t block, int num);
|
|
extern void ext2fs_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
|
|
blk_t block, int num);
|
|
extern int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
|
|
blk_t block, int num);
|
|
extern void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
|
|
blk_t block, int num);
|
|
extern void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
|
|
blk_t block, int num);
|
|
extern int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
|
|
blk_t block, int num);
|
|
extern void ext2fs_set_bitmap_padding(ext2fs_generic_bitmap map);
|
|
|
|
/* These two routines moved to gen_bitmap.c */
|
|
extern int ext2fs_mark_generic_bitmap(ext2fs_generic_bitmap bitmap,
|
|
__u32 bitno);
|
|
extern int ext2fs_unmark_generic_bitmap(ext2fs_generic_bitmap bitmap,
|
|
blk_t bitno);
|