diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/lz4.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -1066,10 +1066,17 @@ int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_dict, const char* source, char* } +/*! LZ4_saveDict() : + * If previously compressed data block is not guaranteed to remain available at its memory location, + * save it into a safer place (char* safeBuffer). + * Note : you don't need to call LZ4_loadDict() afterwards, + * dictionary is immediately usable, you can therefore call LZ4_compress_fast_continue(). + * Return : saved dictionary size in bytes (necessarily <= dictSize), or 0 if error. + */ int LZ4_saveDict (LZ4_stream_t* LZ4_dict, char* safeBuffer, int dictSize) { - LZ4_stream_t_internal* dict = (LZ4_stream_t_internal*) LZ4_dict; - const BYTE* previousDictEnd = dict->dictionary + dict->dictSize; + LZ4_stream_t_internal* const dict = (LZ4_stream_t_internal*) LZ4_dict; + const BYTE* const previousDictEnd = dict->dictionary + dict->dictSize; if ((U32)dictSize > 64 KB) dictSize = 64 KB; /* useless to define a dictionary > 64 KB */ if ((U32)dictSize > dict->dictSize) dictSize = dict->dictSize; |