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Clear Tables on Dict Load

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This commit is contained in:
W. Felix Handte 2018-03-28 12:25:05 -04:00
parent b88a0b4e88
commit 4f7b7a8ffa
1 changed files with 7 additions and 0 deletions
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7
lib/lz4hc.c
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@ -95,6 +95,12 @@ static void LZ4HC_init (LZ4HC_CCtx_internal* hc4, const BYTE* start)
hc4->lowLimit = 64 KB;
}
static void LZ4HC_clearTables (LZ4HC_CCtx_internal* hc4)
{
MEM_INIT((void*)hc4->hashTable, 0, sizeof(hc4->hashTable));
MEM_INIT(hc4->chainTable, 0xFF, sizeof(hc4->chainTable));
}
/* Update chains up to ip (excluded) */
LZ4_FORCE_INLINE void LZ4HC_Insert (LZ4HC_CCtx_internal* hc4, const BYTE* ip)
@ -782,6 +788,7 @@ int LZ4_loadDictHC (LZ4_streamHC_t* LZ4_streamHCPtr, const char* dictionary, int
dictSize = 64 KB;
}
LZ4HC_init (ctxPtr, (const BYTE*)dictionary);
LZ4HC_clearTables (ctxPtr);
ctxPtr->end = (const BYTE*)dictionary + dictSize;
if (dictSize >= 4) LZ4HC_Insert (ctxPtr, ctxPtr->end-3);
return dictSize;