diff options
Diffstat (limited to 'lib/lz4hc.c')
| -rw-r--r-- | lib/lz4hc.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/lz4hc.c b/lib/lz4hc.c index e83246b..fa3e014 100644 --- a/lib/lz4hc.c +++ b/lib/lz4hc.c @@ -102,6 +102,7 @@ static void LZ4HC_init_internal (LZ4HC_CCtx_internal* hc4, const BYTE* start) { size_t const bufferSize = (size_t)(hc4->end - hc4->prefixStart); size_t newStartingOffset = bufferSize + hc4->dictLimit; + DEBUGLOG(5, "LZ4HC_init_internal"); assert(newStartingOffset >= bufferSize); /* check overflow */ if (newStartingOffset > 1 GB) { LZ4HC_clearTables(hc4); @@ -422,6 +423,7 @@ LZ4HC_InsertAndGetWiderMatch ( U32 dictMatchIndex = dictCtx->hashTable[LZ4HC_hashPtr(ip)]; assert(dictEndOffset <= 1 GB); matchIndex = dictMatchIndex + lowestMatchIndex - (U32)dictEndOffset; + if (dictMatchIndex>0) DEBUGLOG(7, "dictEndOffset = %zu, dictMatchIndex = %u => relative matchIndex = %i", dictEndOffset, dictMatchIndex, (int)dictMatchIndex - (int)dictEndOffset); while (ipIndex - matchIndex <= LZ4_DISTANCE_MAX && nbAttempts--) { const BYTE* const matchPtr = dictCtx->prefixStart - dictCtx->dictLimit + dictMatchIndex; @@ -437,6 +439,7 @@ LZ4HC_InsertAndGetWiderMatch ( longest = mlt; *matchpos = prefixPtr - prefixIdx + matchIndex + back; *startpos = ip + back; + DEBUGLOG(8, "found match of length %i at vPos=%i", longest, (int)matchIndex - (int)prefixIdx + back); } } { U32 const nextOffset = DELTANEXTU16(dictCtx->chainTable, dictMatchIndex); @@ -456,6 +459,7 @@ LZ4HC_InsertAndFindBestMatch(LZ4HC_CCtx_internal* const hc4, /* Index table wi const dictCtx_directive dict) { const BYTE* uselessPtr = ip; + DEBUGLOG(7, "LZ4HC_InsertAndFindBestMatch"); /* note : LZ4HC_InsertAndGetWiderMatch() is able to modify the starting position of a match (*startpos), * but this won't be the case here, as we define iLowLimit==ip, * so LZ4HC_InsertAndGetWiderMatch() won't be allowed to search past ip */ @@ -585,6 +589,7 @@ LZ4_FORCE_INLINE int LZ4HC_compress_hashChain ( const BYTE* ref3 = NULL; /* init */ + DEBUGLOG(5, "LZ4HC_compress_hashChain (dict?=>%i)", dict); *srcSizePtr = 0; if (limit == fillOutput) oend -= LASTLITERALS; /* Hack for support LZ4 format restriction */ if (inputSize < LZ4_minLength) goto _last_literals; /* Input too small, no compression (all literals) */ @@ -831,8 +836,8 @@ LZ4_FORCE_INLINE int LZ4HC_compress_generic_internal ( { lz4opt,16384,LZ4_OPT_NUM }, /* 12==LZ4HC_CLEVEL_MAX */ }; - DEBUGLOG(4, "LZ4HC_compress_generic(ctx=%p, src=%p, srcSize=%d, limit=%d)", - ctx, src, *srcSizePtr, limit); + DEBUGLOG(5, "LZ4HC_compress_generic_internal(src=%p, srcSize=%d)", + src, *srcSizePtr); if (limit == fillOutput && dstCapacity < 1) return 0; /* Impossible to store anything */ if ((U32)*srcSizePtr > (U32)LZ4_MAX_INPUT_SIZE) return 0; /* Unsupported input size (too large or negative) */ @@ -966,6 +971,7 @@ int LZ4_compress_HC(const char* src, char* dst, int srcSize, int dstCapacity, in LZ4_streamHC_t state; LZ4_streamHC_t* const statePtr = &state; #endif + DEBUGLOG(5, "LZ4_compress_HC") cSize = LZ4_compress_HC_extStateHC(statePtr, src, dst, srcSize, dstCapacity, compressionLevel); #if defined(LZ4HC_HEAPMODE) && LZ4HC_HEAPMODE==1 FREEMEM(statePtr); @@ -1034,7 +1040,7 @@ void LZ4_resetStreamHC (LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel) void LZ4_resetStreamHC_fast (LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel) { LZ4HC_CCtx_internal* const s = &LZ4_streamHCPtr->internal_donotuse; - DEBUGLOG(4, "LZ4_resetStreamHC_fast(%p, %d)", LZ4_streamHCPtr, compressionLevel); + DEBUGLOG(5, "LZ4_resetStreamHC_fast(%p, %d)", LZ4_streamHCPtr, compressionLevel); if (s->dirty) { LZ4_initStreamHC(LZ4_streamHCPtr, sizeof(*LZ4_streamHCPtr)); } else { @@ -1150,6 +1156,7 @@ LZ4_compressHC_continue_generic (LZ4_streamHC_t* LZ4_streamHCPtr, int LZ4_compress_HC_continue (LZ4_streamHC_t* LZ4_streamHCPtr, const char* src, char* dst, int srcSize, int dstCapacity) { + DEBUGLOG(5, "LZ4_compress_HC_continue"); if (dstCapacity < LZ4_compressBound(srcSize)) return LZ4_compressHC_continue_generic (LZ4_streamHCPtr, src, dst, &srcSize, dstCapacity, limitedOutput); else |