Summary: They are simpler than radix entry and similar.
Reviewed By: DurhamG
Differential Revision: D7191652
fbshipit-source-id: b516663567267a2e354748396b44c2ac8ebb691f
Summary: These are Rust structures that map to the file format.
Reviewed By: DurhamG
Differential Revision: D7191366
fbshipit-source-id: 23a4431383be9713e955b74306cd68108eb80536
Summary: Document the format. Actual implementation in later diffs.
Reviewed By: DurhamG
Differential Revision: D7190575
fbshipit-source-id: 243992fd052ca7a9688d54d20694e65daebb9660
Summary:
The append-only index is too different so it's cleaner to cherry-pick code
from radixbuf, instead of modifying radixbuf which would break code
depending on it.
Started by picking the base16 iterator part.
`rustc-test` does not work with buck, and seems to be in an unmaintained
state, so benchmark tests are migrated to criterion.
Reviewed By: DurhamG
Differential Revision: D7189143
fbshipit-source-id: 459a79b4cf16f35d2ff86f11a5980ba1fc627951
Summary:
Filesystem is hard. Append-only sounds like a safe way to write files, but it
only really helps with process crashes. If the OS crashes, it's possible that
other parts of the file gets corrupted. As source control, data integrity check
is important. So bytes not logically touched by appending also needs to be
checked.
Implement a `ChecksumTable` which adds integrity check ability to append-only
files. It's intended to be used by future append-only indexes.
Reviewed By: DurhamG
Differential Revision: D7108433
fbshipit-source-id: 16daf6b8d04bba464f1ee9221716beba69c1d47b
Summary:
First step of a storage-related building block that is in Rust. The goal is
to use it to replace revlog, obsstore and packfiles.
Extern crates that are likely useful are added to reduce future churns.
Reviewed By: DurhamG
Differential Revision: D7108434
fbshipit-source-id: 97ebd9ba69547d876dcecc05e604acdf9088877e
