sbbf-rs

Split block bloom filter implementation.

Implementation of parquet bloom filter spec.

Features

• Full runtime detection of cpu features, don't need to do target-cpu=native or manually turn on avx
• All stable rust
• Outputs same byte buffers on different systems. Completely cross-platform.
• no_std support
• relatively simple and low amount of code

Caveats

• Only unsafe api. Safe API can be found at sbbf-rs-safe.
• Dynamic dispatch to methods. (Not sure if this will effect performance so much)
• Most people would want to use this through a safe wrapper that handles allocation and initialization. There is example code in tests/mod.rs for that kind of wrapper.
• Unlike other targets, need to do RUSTFLAGS="-C target-feature=+simd128" and use nightly if you want to enable SIMD accelerated version of filter on WASM. If user compiles without enabling simd128, they don't need to use nightly and the fallback implementation of a filter will be used.