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- /* 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);
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