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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Before the misspelled version has a chance to become stable API.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- Padd the compressor config union
- 128 bytes aught to be enough for everyone, i.e. future compressors.
- Insist that the padding space is initialized to 0. If a field gets
added to an existing compressor, it can test for 0 as a sentinel
value.
- Add a size field to the hook structure, aka "the Microsoft way".
- The explanation is in the comment.
- Don't make the Microsoft mistake of checking for >=, insist on *exact*
size match. Future users will need a fallback if their hooks are
rejected. But at least they will be rejected instead of silently not
being used.
- Add an unsupported flag check to the dir tree reader.
- Add a basic abi unit test that, for now, checks the size of the compressor
config struct fields.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Combines all the type depenend attribute setting and inode type
promotion into a single function.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit modifies the dir writer to store the directory index directly
in the payload area of the inode it creates. The size of the index in bytes
is stored in a seperate field. Storing the index is moved to the write
inode function.
The read inode function is in turn also modified to read the directory
index from disk and actually store it in the inode structure in memory
for later use.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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SquashFS restores the file mode from the type, so those bits are
completely redundant.
On a side note: this also reduces entropy, allowing the compressor
to *maybe* squeeze a few more bytes out.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If we don't store the padding location in the deduplication list,
the block deduplication might try to deduplicate across two files
with padding in between, which can't be done.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If there were no key-value pairs recoreded during the lifetime of the
xattr writer, take a short cut out of the flush function and set the
super block values to indicate that.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If begin/end was called without recording *any* attributes, simply
set the resulting index to the 0xFFFFFFFF sentinel.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Count the *corrent* entry structure size, i.e. the on-disk one, not the
in-memory one.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Mostly straight copy-pasta from the sqfshelper code, except it doesn't
use the fstree functions.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit implements the part of the API responsible for recoding
and deduplicating xattr key-value blocks.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Starting out with 0, makes the loop condition evaluate to false and
none of the filters are tested.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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First extend the uint8_t to size_t, then do the arithmetic, otherwise
there is an addtional implicit conversion to int, possibly resulting
in unwanted sign extension.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- We don't have "endian.h" everywhere. On some BSDs its in sys and
on some BSDs the macros have different names.
- We definitely don't have sysmacros.h on non-Unix-like systems.
- Likewise for sys/types.h, sys/stat.h and their contents.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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ssize_t is only available on POSIX platforms and even there it is
only defined to hold at least -1 in the range of negative numbers.
This commit replaces ssize_t return types with sqfs_s32 and the
coresponding function arguments with sqfs_u32. Because the range
of positiv numbers for a signed 32 bit number is only half that of
the unsigned version, additional checks have to be added.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This is a fully automated search and replace, i.e. I ran this:
git grep -l uint8_t | xargs sed -i 's/uint8_t/sqfs_u8/g'
git grep -l uint16_t | xargs sed -i 's/uint16_t/sqfs_u16/g'
git grep -l uint32_t | xargs sed -i 's/uint32_t/sqfs_u32/g'
git grep -l uint64_t | xargs sed -i 's/uint64_t/sqfs_u64/g'
git grep -l int8_t | xargs sed -i 's/int8_t/sqfs_s8/g'
git grep -l int16_t | xargs sed -i 's/int16_t/sqfs_s16/g'
git grep -l int32_t | xargs sed -i 's/int32_t/sqfs_s32/g'
git grep -l int64_t | xargs sed -i 's/int64_t/sqfs_s64/g'
and than added the appropriate definitions to sqfs/predef.h
The whole point being better compatibillity with platforms that may
not have an stdint.h with the propper definitions.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit turns the file interface into an actual, generic file
interface and does away with having to move around blocks outside
the data writer. Instead the data writer takes over full control
and responsibility of dividing the input data up into blocks
propperly.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Basically move the state tracking from the old data writer over to
the new one.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This only exists for tar2sqfs. Move the sparse file map to libtar
and add the ability to do this into the stind sqfs_file_t abstraction,
so it acts like a normal file but internally stitches the data
together from the sparse implementation.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Basically just moving functions around and renaming things.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- Add copyright header
- Remove redundant header inclusions
- Remove unused macros
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Code that already is shared between the pthread and the serial
processor as well as code that can be re-used by other threading
API implementations.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit removes duplicated code paths from the block processor
finish function, i.e. reimplementing it using the existing queue
processing function and merges cleanup code paths in the later.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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