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author | W. Felix Handte <w@felixhandte.com> | 2018-03-14 19:51:59 (GMT) |
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committer | W. Felix Handte <w@felixhandte.com> | 2018-03-14 19:53:10 (GMT) |
commit | 66b6fbfe6fa9d7e8d4686e6525883ff4aef31e02 (patch) | |
tree | 45fbd09e540471c548b9b3f2222df711d43f0d57 | |
parent | c852f20c39e877b877da49dea52dd4e36a5d6cb9 (diff) | |
download | lz4-66b6fbfe6fa9d7e8d4686e6525883ff4aef31e02.zip lz4-66b6fbfe6fa9d7e8d4686e6525883ff4aef31e02.tar.gz lz4-66b6fbfe6fa9d7e8d4686e6525883ff4aef31e02.tar.bz2 |
Restore the Other Old Streaming Functions in a Degraded Fashion
-rw-r--r-- | lib/lz4.c | 19 | ||||
-rw-r--r-- | lib/lz4.h | 11 |
2 files changed, 28 insertions, 2 deletions
@@ -1707,6 +1707,25 @@ int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int LZ4_sizeofStreamState() { return LZ4_STREAMSIZE; } +int LZ4_resetStreamState(void* state, char* inputBuffer) +{ + (void)inputBuffer; + LZ4_resetStream((LZ4_stream_t*)state); + return 0; +} + +void* LZ4_create (char* inputBuffer) +{ + (void)inputBuffer; + return LZ4_createStream(); +} + +char* LZ4_slideInputBuffer (void* state) +{ + // avoid const char * -> char * conversion warning + return (char *)(uptrval)((LZ4_stream_t*)state)->internal_donotuse.dictionary; +} + /* Obsolete streaming decompression functions */ int LZ4_decompress_safe_withPrefix64k(const char* source, char* dest, int compressedSize, int maxOutputSize) @@ -477,8 +477,15 @@ LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") LZ4LIB_API int LZ4_co LZ4_DEPRECATED("use LZ4_decompress_fast() instead") LZ4LIB_API int LZ4_uncompress (const char* source, char* dest, int outputSize); LZ4_DEPRECATED("use LZ4_decompress_safe() instead") LZ4LIB_API int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); -/* Obsolete streaming functions; use new streaming interface whenever possible */ -LZ4_DEPRECATED("use LZ4_createStream() instead") LZ4LIB_API int LZ4_sizeofStreamState(void); +/* Broken, obsolete streaming functions; do not use! + * + * These functions depended on data that is no longer tracked in the state. They + * are therefore broken--they don't retain any history across compressions. + */ +LZ4_DEPRECATED("Broken!!! Use LZ4_createStream() instead") LZ4LIB_API void* LZ4_create (char* inputBuffer); +LZ4_DEPRECATED("Use LZ4_createStream() instead") LZ4LIB_API int LZ4_sizeofStreamState(void); +LZ4_DEPRECATED("Broken!!! Use LZ4_resetStream() instead") LZ4LIB_API int LZ4_resetStreamState(void* state, char* inputBuffer); +LZ4_DEPRECATED("Broken!!! Use LZ4_saveDict() instead") LZ4LIB_API char* LZ4_slideInputBuffer (void* state); /* Obsolete streaming decoding functions */ LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") LZ4LIB_API int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize); |