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lib/ext2fs/bmap64.h
106 строк
3 KB
Theodore Ts'o
libext2fs: revamp bitmap types to fix LTO warnings
08 авг 2018, 20:53
08 авг 2018, 20:53
83d9ffc
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/* * bmap64.h --- 64-bit bitmap structure * * Copyright (C) 2007, 2008 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */ struct ext2_bmap_statistics { int type; struct timeval created; #ifdef ENABLE_BMAP_STATS_OPS unsigned long copy_count; unsigned long resize_count; unsigned long mark_count; unsigned long unmark_count; unsigned long test_count; unsigned long mark_ext_count; unsigned long unmark_ext_count; unsigned long test_ext_count; unsigned long set_range_count; unsigned long get_range_count; unsigned long clear_count; blk64_t last_marked; blk64_t last_tested; blk64_t mark_back; blk64_t test_back; unsigned long mark_seq; unsigned long test_seq; #endif /* ENABLE_BMAP_STATS_OPS */ }; struct ext2fs_struct_generic_bitmap_64 { errcode_t magic; ext2_filsys fs; struct ext2_bitmap_ops *bitmap_ops; int flags; __u64 start, end; __u64 real_end; int cluster_bits; char *description; void *private; errcode_t base_error_code; #ifdef ENABLE_BMAP_STATS struct ext2_bmap_statistics stats; #endif }; typedef struct ext2fs_struct_generic_bitmap_64 *ext2fs_generic_bitmap_64; #define EXT2FS_IS_32_BITMAP(bmap) \ (((bmap)->magic == EXT2_ET_MAGIC_GENERIC_BITMAP) || \ ((bmap)->magic == EXT2_ET_MAGIC_BLOCK_BITMAP) || \ ((bmap)->magic == EXT2_ET_MAGIC_INODE_BITMAP)) #define EXT2FS_IS_64_BITMAP(bmap) \ (((bmap)->magic == EXT2_ET_MAGIC_GENERIC_BITMAP64) || \ ((bmap)->magic == EXT2_ET_MAGIC_BLOCK_BITMAP64) || \ ((bmap)->magic == EXT2_ET_MAGIC_INODE_BITMAP64)) struct ext2_bitmap_ops { int type; /* Generic bmap operators */ errcode_t (*new_bmap)(ext2_filsys fs, ext2fs_generic_bitmap_64 bmap); void (*free_bmap)(ext2fs_generic_bitmap_64 bitmap); errcode_t (*copy_bmap)(ext2fs_generic_bitmap_64 src, ext2fs_generic_bitmap_64 dest); errcode_t (*resize_bmap)(ext2fs_generic_bitmap_64 bitmap, __u64 new_end, __u64 new_real_end); /* bit set/test operators */ int (*mark_bmap)(ext2fs_generic_bitmap_64 bitmap, __u64 arg); int (*unmark_bmap)(ext2fs_generic_bitmap_64 bitmap, __u64 arg); int (*test_bmap)(ext2fs_generic_bitmap_64 bitmap, __u64 arg); void (*mark_bmap_extent)(ext2fs_generic_bitmap_64 bitmap, __u64 arg, unsigned int num); void (*unmark_bmap_extent)(ext2fs_generic_bitmap_64 bitmap, __u64 arg, unsigned int num); int (*test_clear_bmap_extent)(ext2fs_generic_bitmap_64 bitmap, __u64 arg, unsigned int num); errcode_t (*set_bmap_range)(ext2fs_generic_bitmap_64 bitmap, __u64 start, size_t num, void *in); errcode_t (*get_bmap_range)(ext2fs_generic_bitmap_64 bitmap, __u64 start, size_t num, void *out); void (*clear_bmap)(ext2fs_generic_bitmap_64 bitmap); void (*print_stats)(ext2fs_generic_bitmap_64); /* Find the first zero bit between start and end, inclusive. * May be NULL, in which case a generic function is used. */ errcode_t (*find_first_zero)(ext2fs_generic_bitmap_64 bitmap, __u64 start, __u64 end, __u64 *out); /* Find the first set bit between start and end, inclusive. * May be NULL, in which case a generic function is used. */ errcode_t (*find_first_set)(ext2fs_generic_bitmap_64 bitmap, __u64 start, __u64 end, __u64 *out); }; extern struct ext2_bitmap_ops ext2fs_blkmap64_bitarray; extern struct ext2_bitmap_ops ext2fs_blkmap64_rbtree;