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author | Oleg Khabinov <khabinov@fb.com> | 2018-09-20 18:47:30 (GMT) |
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committer | Oleg Khabinov <khabinov@fb.com> | 2018-10-10 17:33:04 (GMT) |
commit | f27ea0774e34b6680a08854af9b4de06406ba39e (patch) | |
tree | 67eed2fbb1ba4222eac1d35c47fe0e77bf86c289 /lib/lz4hc.h | |
parent | df6d00ede56ef97af3461cdc94721a2706ba73c3 (diff) | |
download | lz4-f27ea0774e34b6680a08854af9b4de06406ba39e.zip lz4-f27ea0774e34b6680a08854af9b4de06406ba39e.tar.gz lz4-f27ea0774e34b6680a08854af9b4de06406ba39e.tar.bz2 |
Adding information about dirty context for _HC_ family of functions
Diffstat (limited to 'lib/lz4hc.h')
-rw-r--r-- | lib/lz4hc.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/lib/lz4hc.h b/lib/lz4hc.h index 4c7ba5a..26919af 100644 --- a/lib/lz4hc.h +++ b/lib/lz4hc.h @@ -161,7 +161,9 @@ struct LZ4HC_CCtx_internal uint32_t lowLimit; /* below that point, no more dict */ uint32_t nextToUpdate; /* index from which to continue dictionary update */ short compressionLevel; - short favorDecSpeed; + int8_t favorDecSpeed; /* favor decompression speed if this flag set, + otherwise, favor compression ratio */ + int8_t dirty; /* stream has to be fully reset if this flag is set */ const LZ4HC_CCtx_internal* dictCtx; }; @@ -179,7 +181,9 @@ struct LZ4HC_CCtx_internal unsigned int lowLimit; /* below that point, no more dict */ unsigned int nextToUpdate; /* index from which to continue dictionary update */ short compressionLevel; - short favorDecSpeed; + char favorDecSpeed; /* favor decompression speed if this flag set, + otherwise, favor compression ratio */ + char dirty; /* stream has to be fully reset if this flag is set */ const LZ4HC_CCtx_internal* dictCtx; }; @@ -314,6 +318,11 @@ void LZ4_favorDecompressionSpeed(LZ4_streamHC_t* LZ4_streamHCPtr, int favor); * - the stream was in an indeterminate state and was used in a compression * call that fully reset the state (LZ4_compress_HC_extStateHC()) and that * returned success + * + * Note: + * A stream that was last used in a compression call that returned an error + * may be passed to this function. However, it will be fully reset, which will + * clear any existing history and settings from the context. */ void LZ4_resetStreamHC_fast(LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel); |