Move the pure multithreaded worker-parameter policy into Rust: only the first
job keeps the frame checksum flag, worker jobs disable LDM, and every worker
context runs with zero nested workers. Keep the complete C-owned parameter
structure and codec initialization in the adapter, crossing the ABI with a
small layout-checked scalar projection.
Test Plan:
- rustfmt --edition 2021 --check rust/src/zstdmt_compress.rs
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo clippy --manifest-path rust/Cargo.toml --all-targets -- -D warnings
- ulimit -v 41943040; make -j1
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo test --manifest-path rust/Cargo.toml --all-targets
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo test --manifest-path rust/cli/Cargo.toml --all-targets
- ulimit -v 41943040; make -j1 -C tests test
ddidderr
71a18ce315