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refactor(compress): expose LDM skip leaves from Rust

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Keep the existing internal ZSTD_ldm_* ABI names while making the two
sequence-store skip operations direct Rust exports. Remove only the C
forwarding declarations and bodies; LDM state projection, configuration
constants, and block-compressor adapters remain in C.

Test Plan:
- clang -fsyntax-only on lib/compress/zstd_ldm.c
- git diff --check
- Full capped native/upstream suite pending after this commit
This commit is contained in:
ddidderr
2026-07-20 11:49:48 +02:00
parent db4ddda35b
commit e1d98eb8b6
2 changed files with 3 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/compress/zstd_ldm.c
-13
View File
@@ -265,8 +265,6 @@ size_t ZSTD_rust_ldm_generateSequences(
void* hashTable, BYTE* bucketOffsets, void* window, U32* loadedDictEnd, void* hashTable, BYTE* bucketOffsets, void* window, U32* loadedDictEnd,
void* rawSeqStore, const void* params, void* rawSeqStore, const void* params,
const void* src, size_t srcSize, int overflowCorrectFrequently); const void* src, size_t srcSize, int overflowCorrectFrequently);
void ZSTD_rust_ldm_skipSequences(void* rawSeqStore, size_t srcSize, U32 minMatch);
void ZSTD_rust_ldm_skipRawSeqStoreBytes(void* rawSeqStore, size_t nbBytes);
size_t ZSTD_rust_ldm_blockCompress( size_t ZSTD_rust_ldm_blockCompress(
void* rawSeqStore, void* blockContext, void* seqStore, U32 rep[ZSTD_REP_NUM], void* rawSeqStore, void* blockContext, void* seqStore, U32 rep[ZSTD_REP_NUM],
const void* src, size_t srcSize, U32 minMatch, int strategy); const void* src, size_t srcSize, U32 minMatch, int strategy);
@@ -387,17 +385,6 @@ size_t ZSTD_ldm_generateSequences(
ZSTD_WINDOW_OVERFLOW_CORRECT_FREQUENTLY); ZSTD_WINDOW_OVERFLOW_CORRECT_FREQUENTLY);
} }
void ZSTD_ldm_skipSequences(RawSeqStore_t* rawSeqStore, size_t srcSize,
U32 const minMatch)
{
ZSTD_rust_ldm_skipSequences(rawSeqStore, srcSize, minMatch);
}
void ZSTD_ldm_skipRawSeqStoreBytes(RawSeqStore_t* rawSeqStore, size_t nbBytes)
{
ZSTD_rust_ldm_skipRawSeqStoreBytes(rawSeqStore, nbBytes);
}
size_t ZSTD_ldm_blockCompress(RawSeqStore_t* rawSeqStore, size_t ZSTD_ldm_blockCompress(RawSeqStore_t* rawSeqStore,
ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM], ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
ZSTD_ParamSwitch_e useRowMatchFinder, ZSTD_ParamSwitch_e useRowMatchFinder,
rust/src/zstd_ldm.rs
+3 -3
View File
@@ -903,7 +903,7 @@ unsafe fn skip_sequences(raw_seq_store: *mut RawSeqStore, mut src_size: usize, m
} }
#[no_mangle] #[no_mangle]
pub unsafe extern "C" fn ZSTD_rust_ldm_skipSequences( pub unsafe extern "C" fn ZSTD_ldm_skipSequences(
raw_seq_store: *mut c_void, raw_seq_store: *mut c_void,
src_size: usize, src_size: usize,
min_match: u32, min_match: u32,
@@ -912,7 +912,7 @@ pub unsafe extern "C" fn ZSTD_rust_ldm_skipSequences(
} }
#[no_mangle] #[no_mangle]
pub unsafe extern "C" fn ZSTD_rust_ldm_skipRawSeqStoreBytes( pub unsafe extern "C" fn ZSTD_ldm_skipRawSeqStoreBytes(
raw_seq_store: *mut c_void, raw_seq_store: *mut c_void,
nb_bytes: usize, nb_bytes: usize,
) { ) {
@@ -978,7 +978,7 @@ pub unsafe extern "C" fn ZSTD_rust_ldm_blockCompress(
let last_literals = unsafe { let last_literals = unsafe {
ZSTD_ldm_rust_compressLiterals(block_context, seq_store, reps, src, src_size) ZSTD_ldm_rust_compressLiterals(block_context, seq_store, reps, src, src_size)
}; };
unsafe { ZSTD_rust_ldm_skipRawSeqStoreBytes(raw_seq_store.cast::<c_void>(), src_size) }; unsafe { ZSTD_ldm_skipRawSeqStoreBytes(raw_seq_store.cast::<c_void>(), src_size) };
return last_literals; return last_literals;
} }