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Make seekable streams work w/ small buffers, misc fixes

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Sean Purcell
2017-04-11 13:53:09 -07:00
parent c3ba15e48f
commit a3b7c22604
6 changed files with 110 additions and 55 deletions
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lib/zstd.h
+3 -1
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@@ -807,6 +807,8 @@ typedef struct ZSTD_seekable_DStream_s ZSTD_seekable_DStream;
* for a new compression operation.
* `maxChunkSize` indicates the size at which to automatically start a new
* seekable frame. `maxChunkSize == 0` implies the default maximum size.
* `checksumFlag` indicates whether or not the seek table should include chunk
* checksums on the uncompressed data for verification.
* @return : a size hint for input to provide for compression, or an error code
* checkable with ZSTD_isError()
*
@@ -836,7 +838,7 @@ ZSTDLIB_API ZSTD_seekable_CStream* ZSTD_seekable_createCStream(void);
ZSTDLIB_API size_t ZSTD_seekable_freeCStream(ZSTD_seekable_CStream* zcs);
/*===== Seekable compression functions =====*/
ZSTDLIB_API size_t ZSTD_seekable_initCStream(ZSTD_seekable_CStream* zcs, int compressionLevel, unsigned maxChunkSize);
ZSTDLIB_API size_t ZSTD_seekable_initCStream(ZSTD_seekable_CStream* zcs, int compressionLevel, int checksumFlag, unsigned maxChunkSize);
ZSTDLIB_API size_t ZSTD_seekable_compressStream(ZSTD_seekable_CStream* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
ZSTDLIB_API size_t ZSTD_seekable_endChunk(ZSTD_seekable_CStream* zcs, ZSTD_outBuffer* output);
ZSTDLIB_API size_t ZSTD_seekable_endStream(ZSTD_seekable_CStream* zcs, ZSTD_outBuffer* output);