git/reftable/blocksource.c, branch v2.35.2Mirror of https://git.kernel.org/pub/scm/git/git.git/
https://git.shady.money/git/atom?h=v2.35.22021-10-08T17:45:48Zreftable: add blocksource, an abstraction for random access reads2021-10-08T17:45:48ZHan-Wen Nienhuyshanwen@google.com2021-10-07T20:25:01Zurn:sha1:1214aa841bc825c97541a68f397227cb2bfd3f3c
The reftable format is usually used with files for storage. However, we abstract
away this using the blocksource data structure. This has two advantages:
* log blocks are zlib compressed, and handling them is simplified if we can
discard byte segments from within the block layer.
* for unittests, it is useful to read and write in-memory. The blocksource
allows us to abstract the data away from on-disk files.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>