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[lib] Add rsyncable mode

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- Add rsyncable mode to multithreaded mode
- Factor out LDM's hash function for reuse
This commit is contained in:
Nick Terrell
2018-11-14 16:59:57 -08:00
parent c584e84e68
commit b9693d3a49
7 changed files with 218 additions and 80 deletions
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lib/compress/zstdmt_compress.h
+2 -1
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@@ -85,7 +85,8 @@ ZSTDLIB_API size_t ZSTDMT_initCStream_usingCDict(ZSTDMT_CCtx* mtctx,
* List of parameters that can be set using ZSTDMT_setMTCtxParameter() */
typedef enum {
ZSTDMT_p_jobSize, /* Each job is compressed in parallel. By default, this value is dynamically determined depending on compression parameters. Can be set explicitly here. */
ZSTDMT_p_overlapSectionLog /* Each job may reload a part of previous job to enhance compressionr ratio; 0 == no overlap, 6(default) == use 1/8th of window, >=9 == use full window. This is a "sticky" parameter : its value will be re-used on next compression job */
ZSTDMT_p_overlapSectionLog, /* Each job may reload a part of previous job to enhance compressionr ratio; 0 == no overlap, 6(default) == use 1/8th of window, >=9 == use full window. This is a "sticky" parameter : its value will be re-used on next compression job */
ZSTDMT_p_rsyncable /* Enables rsyncable mode. */
} ZSTDMT_parameter;
/* ZSTDMT_setMTCtxParameter() :