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zbuff supports byte-by-byte decompression scenarios

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Yann Collet
2016-05-10 14:14:19 +02:00
parent 918b934a26
commit bd39d54576
4 changed files with 81 additions and 42 deletions
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programs/fileio.c
+3 -3
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@@ -533,9 +533,9 @@ unsigned long long FIO_decompressFrame(dRess_t ress,
ZBUFF_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize);
/* Complete Header loading */
{ size_t const toLoad = ZSTD_frameHeaderSize_max - alreadyLoaded; /* assumption : alreadyLoaded <= ZSTD_frameHeaderSize_max */
size_t const loadedSize = fread(((char*)ress.srcBuffer) + alreadyLoaded, 1, toLoad, finput); /* can be <= toLoad (null string) */
/* Header loading (optional, saves one loop) */
{ size_t const toLoad = ZSTD_frameHeaderSize_min - alreadyLoaded; /* assumption : ZSTD_frameHeaderSize_min >= alreadyLoaded */
size_t const loadedSize = fread(((char*)ress.srcBuffer) + alreadyLoaded, 1, toLoad, finput);
readSize = alreadyLoaded + loadedSize;
}