zstd-rs/lib/compress/zstd_preSplit.c at c561a4dc8a910654c930f84925f0718f9470c686 - zstd-rs - PFS Gitea

ddidderr/zstd-rs

Files

T

ddidderr 24d01b92fb

feat(rust): port compression block pre-splitting

Move ZSTD_splitBlock into Rust while retaining its caller-owned workspace
contract. The implementation preserves the C fingerprint sampling heuristic
and calls the migrated histogram primitive without adding a hot-path
allocation.

Reference-vector and randomized differential tests compare every split level
with the original C translation unit. The C source remains as a declaration
shim so existing source lists resolve the Rust ABI during the migration.

Test Plan:
- cargo fmt, cargo clippy, cargo clippy --benches, cargo clippy --tests
- cargo test --all-targets and cargo build --release
- cargo test/build --target i686-unknown-linux-gnu
- 264-case original-C/Rust differential harness
- C fuzzer, zstreamtest, and fuzzer32 smoke runs

Refs: rust/README.md

2026-07-10 21:28:56 +02:00

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C

Raw Blame History

	`/* Implementation moved to rust/src/zstd_presplit.rs. */`
	`#include "zstd_preSplit.h"`