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Remove ZSTD_p_refDictContent and dictContentByRef

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Stella Lau
2017-08-25 11:11:45 -07:00
parent 15fdeb9e41
commit eb7bbab36a
5 changed files with 31 additions and 18 deletions
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lib/zstd.h
+9 -4
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@@ -970,8 +970,6 @@ typedef enum {
/* dictionary parameters (must be set before ZSTD_CCtx_loadDictionary) */
ZSTD_p_dictMode=300, /* Select how dictionary content must be interpreted. Value must be from type ZSTD_dictMode_e.
* default : 0==auto : dictionary will be "full" if it respects specification, otherwise it will be "rawContent" */
ZSTD_p_refDictContent, /* Dictionary content will be referenced, instead of copied (default:0==byCopy).
* It requires that dictionary buffer outlives its users */
/* multi-threading parameters */
ZSTD_p_nbThreads=400, /* Select how many threads a compression job can spawn (default:1)
@@ -1015,8 +1013,9 @@ ZSTDLIB_API size_t ZSTD_CCtx_setPledgedSrcSize(ZSTD_CCtx* cctx, unsigned long lo
* @result : 0, or an error code (which can be tested with ZSTD_isError()).
* Special : Adding a NULL (or 0-size) dictionary invalidates any previous dictionary,
* meaning "return to no-dictionary mode".
* Note 1 : `dict` content will be copied internally,
* except if ZSTD_p_refDictContent is set before loading.
* Note 1 : `dict` content will be copied internally. Use
* ZSTD_CCtx_loadDictionary_byReference() to reference dictionary
* content instead.
* Note 2 : Loading a dictionary involves building tables, which are dependent on compression parameters.
* For this reason, compression parameters cannot be changed anymore after loading a dictionary.
* It's also a CPU-heavy operation, with non-negligible impact on latency.
@@ -1024,6 +1023,12 @@ ZSTDLIB_API size_t ZSTD_CCtx_setPledgedSrcSize(ZSTD_CCtx* cctx, unsigned long lo
* To return to "no-dictionary" situation, load a NULL dictionary */
ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary(ZSTD_CCtx* cctx, const void* dict, size_t dictSize);
/*! ZSTD_CCtx_loadDictionary_byReference() :
* Same as ZSTD_CCtx_loadDictionary() except dictionary content will be
* referenced, instead of copied. The dictionary buffer must outlive its users.
*/
ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary_byReference(ZSTD_CCtx* cctx, const void* dict, size_t dictSize);
/*! ZSTD_CCtx_refCDict() :
* Reference a prepared dictionary, to be used for all next compression jobs.
* Note that compression parameters are enforced from within CDict,