squashfs-tools-ng.git/lib/sqfs/comp, branch v0.9.1

Fix build of lz4 compressor with older versions of liblz4

2020-03-18T21:30:17+00:00

Older versions of liblz4 don't define LZ4HC_CLEVEL_MAX. This commit adds a definition if liblz4 doesn't provide one. Signed-off-by: David Oberhollenzer

Get rid of sqfs_compressor_exists

2020-03-05T21:55:09+00:00

Signed-off-by: David Oberhollenzer

Change the signature of sqfs_compressor_create to return an error code

2020-03-05T21:41:04+00:00

Make sure the function has a way of telling the caller *why* it failed. This way, the function can convey whether it had an internal error, an allocation failure, whether the arguments are totaly nonsensical, or simply that the compressor *or specific configuration* is not supported. Signed-off-by: David Oberhollenzer

Cleanup: Remove the E_ prefix from all libsquashfs enumerators

2020-03-05T14:17:45+00:00

Avoid namespace polution. Make sure all exportet symbols are prefixed with either sqfs_ or SQFS_. Signed-off-by: David Oberhollenzer

Add a generic copying mechanism to sqfs_object_t

2020-03-03T23:58:53+00:00

This patch adds a deep-copy callback to sqfs_object_t and removes the copying mechanism from sqfs_compressor_t. This is also interesting for other types. Signed-off-by: David Oberhollenzer

Fix: strictly verify compressor settings in config initialization

2020-02-27T00:05:42+00:00

Make sure the function throws an error if a given compressor ID or flag is not known. This way, libsquahfs supports *exactly* and *only* what the on-disk format specifies. Signed-off-by: David Oberhollenzer

Add a function to the compressor interface to get the configuration

2020-02-27T00:05:42+00:00

This allows getting the compressor configuration back after creating it, for various purposes. Signed-off-by: David Oberhollenzer

Cleanup: move utilities back out of libsquashfs

2020-02-21T11:39:28+00:00

This commit removes the allocation helpers and string table functions out of libsquashfs back into a "libutil.a". The problem of libsquashfs exporting stuff that it shouldn't is resolved by retaining the internal attributes and directly adding the source to libsquashfs instead of trying to somehow link against libutil.la. Signed-off-by: David Oberhollenzer

Replace crc32 with xxhash32

2020-02-16T01:07:31+00:00

On the one hand, benchmarking and profiling determined xxhash32 to be faster than the zlib implementation of crc32, on the other hand profiling determined that crc32 computation contributed signifficantly to the overall runtime. Signed-off-by: David Oberhollenzer

Implement a more explicit object system

2020-02-12T01:26:24+00:00

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