third_party/cachunker: init

This is the BuzHash content-defined chunker extracted from Lennart
Poettering's casync, almost verbatim, along with Rust bindings so
we can actually use it safely.

The bindings are a little bit constrained, since they don't support
streaming use, unlike the code they are wrapping. This suffices for
our use case: performance and correctness comparison to our native
Rust implementation, which should behave identically and perform
better.

Change-Id: Iee4296f661b036620bafef5a6c6671fe1a750bb6

0 files changed, 0 insertions, 0 deletions