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62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
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/*
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* bmap64.h --- 64-bit bitmap structure
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*
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* Copyright (C) 2007, 2008 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Public
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* License.
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* %End-Header%
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*/
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struct ext2fs_struct_generic_bitmap {
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errcode_t magic;
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ext2_filsys fs;
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struct ext2_bitmap_ops *bitmap_ops;
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int flags;
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__u64 start, end;
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__u64 real_end;
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char *description;
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void *private;
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errcode_t base_error_code;
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};
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#define EXT2FS_IS_32_BITMAP(bmap) \
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(((bmap)->magic == EXT2_ET_MAGIC_GENERIC_BITMAP) || \
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((bmap)->magic == EXT2_ET_MAGIC_BLOCK_BITMAP) || \
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((bmap)->magic == EXT2_ET_MAGIC_INODE_BITMAP))
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#define EXT2FS_IS_64_BITMAP(bmap) \
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(((bmap)->magic == EXT2_ET_MAGIC_GENERIC_BITMAP64) || \
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((bmap)->magic == EXT2_ET_MAGIC_BLOCK_BITMAP64) || \
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((bmap)->magic == EXT2_ET_MAGIC_INODE_BITMAP64))
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struct ext2_bitmap_ops {
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int type;
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/* Generic bmap operators */
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errcode_t (*new_bmap)(ext2_filsys fs, ext2fs_generic_bitmap bmap);
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void (*free_bmap)(ext2fs_generic_bitmap bitmap);
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errcode_t (*copy_bmap)(ext2fs_generic_bitmap src,
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ext2fs_generic_bitmap dest);
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errcode_t (*resize_bmap)(ext2fs_generic_bitmap bitmap,
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__u64 new_end,
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__u64 new_real_end);
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/* bit set/test operators */
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int (*mark_bmap)(ext2fs_generic_bitmap bitmap, __u64 arg);
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int (*unmark_bmap)(ext2fs_generic_bitmap bitmap, __u64 arg);
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int (*test_bmap)(ext2fs_generic_bitmap bitmap, __u64 arg);
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void (*mark_bmap_extent)(ext2fs_generic_bitmap bitmap, __u64 arg,
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unsigned int num);
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void (*unmark_bmap_extent)(ext2fs_generic_bitmap bitmap, __u64 arg,
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unsigned int num);
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int (*test_clear_bmap_extent)(ext2fs_generic_bitmap bitmap,
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__u64 arg, unsigned int num);
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errcode_t (*set_bmap_range)(ext2fs_generic_bitmap bitmap,
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__u64 start, size_t num, void *in);
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errcode_t (*get_bmap_range)(ext2fs_generic_bitmap bitmap,
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__u64 start, size_t num, void *out);
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void (*clear_bmap)(ext2fs_generic_bitmap bitmap);
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};
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extern struct ext2_bitmap_ops ext2fs_blkmap64_bitarray;
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