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2023-06-11libio: move istream buffer logic into interall callbacksDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-09libio: remove eof flag from istream_t interfaceDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-05Move dir_entry_xattr_t from libio to libsquashfsDavid Oberhollenzer
The structure and functions are renamed to sqfs_xattr_* instead, an additional helper is added to accept an encoded xattr. Documentation and unit test are added as well. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-05libio: remove buffer_offset from istream_tDavid Oberhollenzer
Instead, make the buffer const, let the user adjust the pointer and size. The offset can then be inferred in precache. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-04libio: Move istream_t precache logic into backend implementationDavid Oberhollenzer
The end goal is to remove direct buffer access from the istream_t interfaces and make that opaque. For the tar implementation, this already safes us needless buffer copying, as we essentially allow the user to read-through from the underlying stream. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-01libio: split dir_entry_t from dir_iterator_t, add create helperDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-22libtar: add a dir_iterator_t implementation for tar filesDavid Oberhollenzer
The existing istream_t wrapper is mered into this one as well, we can open the files via the iterators open_file_ro function. Unit tests and tar2sqfs are modified accordingly. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-16libio: add xattr query interface to dir_iterator_tDavid Oberhollenzer
Again, with a dummy implementation for Unix and Windows backends. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-15libio: remove device number from dir_iterator_t, add flag fieldDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-14libio: Add a function to open an istream_t from a directory iteratorDavid Oberhollenzer
For the native versions, this is currently dummied out, always returning an error number. The idea is to laster wrap the libtar interface around a directory iterator, here we need that method to support the existing use case in tar2sqfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-14libio: Move skip function into dir_iterator_t base interfaceDavid Oberhollenzer
For regular iterator types, it's a no-op, for the tree iterator, it skips the sub tree. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-13Move directory iterator from libutil to libioDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-31Move library source into src sub-directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>