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Update name of enum, clarify documentation

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This commit is contained in:
senhuang42 2020-11-02 11:32:56 -05:00
parent 9102f30dbf
commit d4d0346b40
3 changed files with 7 additions and 6 deletions
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1
lib/compress/zstd_compress.c
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@ -2505,6 +2505,7 @@ static void ZSTD_copyBlockSequences(ZSTD_CCtx* zc)
for (i = 0; i < seqStoreSeqSize; ++i) { for (i = 0; i < seqStoreSeqSize; ++i) {
outSeqs[i].litLength = seqStoreSeqs[i].litLength; outSeqs[i].litLength = seqStoreSeqs[i].litLength;
outSeqs[i].matchLength = seqStoreSeqs[i].matchLength + MINMATCH; outSeqs[i].matchLength = seqStoreSeqs[i].matchLength + MINMATCH;
outSeqs[i].rep = 0;
if (i == seqStore->longLengthPos) { if (i == seqStore->longLengthPos) {
if (seqStore->longLengthID == 1) { if (seqStore->longLengthID == 1) {

8
lib/zstd.h
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@ -1298,16 +1298,16 @@ ZSTDLIB_API unsigned long long ZSTD_decompressBound(const void* src, size_t srcS
ZSTDLIB_API size_t ZSTD_frameHeaderSize(const void* src, size_t srcSize); ZSTDLIB_API size_t ZSTD_frameHeaderSize(const void* src, size_t srcSize);
typedef enum { typedef enum {
ZSTD_sf_blockDelimiters = 0, ZSTD_sf_explicitBlockDelimiters = 0, /* Representation of ZSTD_Sequence contains explicit block delimiters */
ZSTD_sf_noBlockDelimiters = 1, ZSTD_sf_noBlockDelimiters = 1, /* Representation of ZSTD_Sequence has no block delimiters, sequences only */
} ZSTD_sequenceFormat_e; } ZSTD_sequenceFormat_e;
/*! ZSTD_getSequences() : /*! ZSTD_getSequences() :
* Extract sequences from the sequence store. * Extract sequences from the sequence store.
* If invoked with ZSTD_sf_blockDelimiters, block will end with a dummy sequence * If invoked with ZSTD_sf_explicitBlockDelimiters, each block will end with a dummy sequence
* with offset == 0, matchLength == 0, and litLength == length of last literals. * with offset == 0, matchLength == 0, and litLength == length of last literals.
* *
* If invoked with ZSTD_sf_noBlockDelimiters, sequences will still be generated * If invoked with ZSTD_sf_noBlockDelimiters, sequences will still be internally generated
* on a per-block basis, but any last literals of a block will be merged into the * on a per-block basis, but any last literals of a block will be merged into the
* last literals of the first sequence in the next block. * last literals of the first sequence in the next block.
* As such, the final generated result has no explicit representation of block boundaries, * As such, the final generated result has no explicit representation of block boundaries,

4
tests/fuzzer.c
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@ -2725,8 +2725,8 @@ static int basicUnitTests(U32 const seed, double compressibility)
RDG_genBuffer(CNBuffer, srcSize, 0.03, 0., seed); RDG_genBuffer(CNBuffer, srcSize, 0.03, 0., seed);
/* Test with block delimiters roundtrip */ /* Test with block delimiters roundtrip */
seqsSize = ZSTD_getSequences(cctx, seqs, srcSize, src, srcSize, ZSTD_sf_blockDelimiters); seqsSize = ZSTD_getSequences(cctx, seqs, srcSize, src, srcSize, ZSTD_sf_explicitBlockDelimiters);
FUZ_decodeSequences(decoded, seqs, seqsSize, src, srcSize, ZSTD_sf_blockDelimiters); FUZ_decodeSequences(decoded, seqs, seqsSize, src, srcSize, ZSTD_sf_explicitBlockDelimiters);
assert(!memcmp(CNBuffer, compressedBuffer, srcSize)); assert(!memcmp(CNBuffer, compressedBuffer, srcSize));
/* Test no block delimiters roundtrip */ /* Test no block delimiters roundtrip */