diff options
author | Denis Vlasenko <vda.linux@googlemail.com> | 2006-12-26 01:30:59 +0000 |
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committer | Denis Vlasenko <vda.linux@googlemail.com> | 2006-12-26 01:30:59 +0000 |
commit | c4f623ef2a7980a63de7c9f1d539a656b83f10e7 (patch) | |
tree | a294e28b0112052cb9d58b403554b3390e76f50c /e2fsprogs/old_e2fsprogs/ext2fs/bitops.h | |
parent | 64c54025842f205ad722675105b88044a5b6845a (diff) |
put small subset of e2fsprogs back in the tree:
lsattr, chattr, fsck. Old e2fsprogs tree is in
e2fsprogs/old_e2fsprogs/*.
Diffstat (limited to 'e2fsprogs/old_e2fsprogs/ext2fs/bitops.h')
-rw-r--r-- | e2fsprogs/old_e2fsprogs/ext2fs/bitops.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/bitops.h b/e2fsprogs/old_e2fsprogs/ext2fs/bitops.h new file mode 100644 index 000000000..6dd30862b --- /dev/null +++ b/e2fsprogs/old_e2fsprogs/ext2fs/bitops.h @@ -0,0 +1,107 @@ +/* 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); |