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Merge pull request #1858 from senhuang42/dictionary_header_size

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Method to get dictionary header size
This commit is contained in:
Yann Collet
2019-11-14 09:44:07 -08:00
committed by GitHub
parent 2ba0167a7d c85d10d0ea
commit d67742bc5d
6 changed files with 108 additions and 32 deletions
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24
tests/fuzzer.c
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@ -1159,6 +1159,7 @@ static int basicUnitTests(U32 const seed, double compressibility)
size_t* const samplesSizes = (size_t*) malloc(nbSamples * sizeof(size_t));
size_t dictSize;
U32 dictID;
size_t dictHeaderSize;
if (dictBuffer==NULL || samplesSizes==NULL) {
free(dictBuffer);
@ -1248,6 +1249,29 @@ static int basicUnitTests(U32 const seed, double compressibility)
if (dictID==0) goto _output_error;
DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictID);
DISPLAYLEVEL(3, "test%3i : check dict header size no error : ", testNb++);
dictHeaderSize = ZDICT_getDictHeaderSize(dictBuffer, dictSize);
if (dictHeaderSize==0) goto _output_error;
DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictHeaderSize);
DISPLAYLEVEL(3, "test%3i : check dict header size correctness : ", testNb++);
{ unsigned char const dictBufferFixed[144] = { 0x37, 0xa4, 0x30, 0xec, 0x63, 0x00, 0x00, 0x00, 0x08, 0x10, 0x00, 0x1f,
0x0f, 0x00, 0x28, 0xe5, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x80, 0x0f, 0x9e, 0x0f, 0x00, 0x00, 0x24, 0x40, 0x80, 0x00, 0x01,
0x02, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0xde, 0x08,
0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x08, 0xbc, 0xe1, 0x4b, 0x92, 0x0e, 0xb4, 0x7b, 0x18,
0x86, 0x61, 0x18, 0xc6, 0x18, 0x63, 0x8c, 0x31, 0xc6, 0x18, 0x63, 0x8c,
0x31, 0x66, 0x66, 0x66, 0x66, 0xb6, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x04,
0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x20, 0x73, 0x6f, 0x64, 0x61,
0x6c, 0x65, 0x73, 0x20, 0x74, 0x6f, 0x72, 0x74, 0x6f, 0x72, 0x20, 0x65,
0x6c, 0x65, 0x69, 0x66, 0x65, 0x6e, 0x64, 0x2e, 0x20, 0x41, 0x6c, 0x69 };
dictHeaderSize = ZDICT_getDictHeaderSize(dictBufferFixed, 144);
if (dictHeaderSize != 115) goto _output_error;
}
DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictHeaderSize);
DISPLAYLEVEL(3, "test%3i : compress with dictionary : ", testNb++);
cSize = ZSTD_compress_usingDict(cctx, compressedBuffer, compressedBufferSize,
CNBuffer, CNBuffSize,