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Make every dynamically allocated, opaque data structure inherit from
a common sqfs_object_t structure with common entry points (e.g. destroy).
This removes tons of public API functions and replaces them with a
simple sqfs_destroy instead. If semantics of the (until now implicit)
object system need to be extended, it can be much more conveniantely
done this way.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Just to be safe in case there needs to be an extension
in the future.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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There are 3 types of extra payload:
- Directory index
- File block sizes
- Symlink target
This commit removes the type specific pointers and modifies the code
to use the payload area directly. To simplify the file block case and
mitigate alignment issues, the type of the extra field is changed to
sqfs_u32.
For symlink target, the extra field can simply be cast to a character
pointer (it had to be cast anyway for most uses). For block sizes,
probably the most common usecase, it can be used as is. For directory
indices, there is a helper function anyway.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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A play on the famous 42.zip
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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