ddidderr 127dd21195 feat(compress): move match-state reset policy into Rust ...

Move the reset decision tree for match-state tables from C into a Rust-owned
callback projection. Rust now decides chain/hash3/row/optimal allocations,
reset versus continue behavior, clean versus leave-dirty policy, scalar
publication, and allocation-error propagation. C retains the cwksp phases,
window invalidation, private pointer assignments, zeroing, and hash-salt
implementation behind callbacks, so the private match-state and workspace
layouts remain C-owned.

Update the migration boundary documentation and add callback-order probes for
CCtx optimal storage, CCtx row salting, CDict row zeroing, and table allocation
failure.

Test Plan:
- cargo fmt --manifest-path rust/Cargo.toml -- --check
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo test --manifest-path rust/Cargo.toml --lib (677 passed)
- ulimit -v 41943040; CARGO_BUILD_JOBS=1 cargo clippy --manifest-path rust/Cargo.toml --all-targets -- -D warnings
- ulimit -v 41943040; make -B -C programs -j1 zstd
- ulimit -v 41943040; make -C tests -j1 test-zstream ZSTREAM_TESTTIME=-T1s (84 tests and both short fuzzer rounds)

2026-07-19 17:43:45 +02:00

..

clevels.h

initial commit

2023-01-04 13:01:54 -08:00

fse_compress.c

feat(rust): port FSE compression primitives

2026-07-10 20:32:18 +02:00

hist.c

feat(rust): port histogram counting primitives

2026-07-10 20:06:25 +02:00

hist.h

Fix new typos found by codespell

2024-11-26 11:15:39 +01:00

huf_compress.c

feat(rust): port Huffman compression

2026-07-10 21:54:23 +02:00

zstd_compress_internal.h

fix(compress): reserve the block split terminal boundary

2026-07-18 17:59:49 +02:00

zstd_compress_literals.c

feat(rust): port compression literal blocks

2026-07-10 22:07:27 +02:00

zstd_compress_literals.h

fix root cause of #3416

2023-01-12 15:41:08 -08:00

zstd_compress_sequences.c

feat(rust): port sequence entropy encoding

2026-07-10 22:44:39 +02:00

zstd_compress_sequences.h

codemod: ZSTD_defaultPolicy_e -> ZSTD_DefaultPolicy_e

2024-12-20 10:36:56 -08:00

zstd_compress_superblock.c

feat(rust): port block entropy statistics

2026-07-11 23:11:57 +02:00

zstd_compress_superblock.h

initial commit

2023-01-04 13:01:54 -08:00

zstd_compress.c

feat(compress): move match-state reset policy into Rust

2026-07-19 17:43:45 +02:00

zstd_cwksp.h

Remove extern C blocks from lib/* internal APIs (except xxhash.h)

2024-12-19 16:00:11 -08:00

zstd_double_fast.c

feat(rust): port double-fast block matching

2026-07-11 08:05:25 +02:00

zstd_double_fast.h

Merge pull request #4218 from facebook/externC

2025-01-07 10:06:08 -08:00

zstd_fast.c

feat(rust): port fast block matching

2026-07-10 22:46:15 +02:00

zstd_fast.h

Merge pull request #4218 from facebook/externC

2025-01-07 10:06:08 -08:00

zstd_lazy.c

feat(rust): port lazy block matching

2026-07-11 08:06:30 +02:00

zstd_lazy.h

Merge pull request #4218 from facebook/externC

2025-01-07 10:06:08 -08:00

zstd_ldm_geartab.h

initial commit

2023-01-04 13:01:54 -08:00

zstd_ldm.c

feat(ldm): move limit-table scalar leaf to Rust

2026-07-18 15:39:37 +02:00

zstd_ldm.h

Merge pull request #4218 from facebook/externC

2025-01-07 10:06:08 -08:00

zstd_opt.c

feat(compress): port the optimal parser to Rust

2026-07-12 09:51:45 +02:00

zstd_opt.h

Merge pull request #4218 from facebook/externC

2025-01-07 10:06:08 -08:00

zstd_preSplit.c

feat(rust): port compression block pre-splitting

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

zstd_preSplit.h

Remove extern C blocks from lib/* internal APIs (except xxhash.h)

2024-12-19 16:00:11 -08:00

zstdmt_compress.c

feat(compress): move MT stream initialization policy into Rust

2026-07-19 09:43:28 +02:00

zstdmt_compress.h

feat(compress): move MT job-table storage lifecycle to Rust

2026-07-18 01:40:18 +02:00