added ZSTD_CCtx_reset
diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index 1d4f4f5..1be0e97 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -399,14 +399,14 @@
}
/* Not ready yet ! */
-ZSTDLIB_API size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx, const void* prefix, size_t prefixSize)
+size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx, const void* prefix, size_t prefixSize)
{
(void)cctx; (void)prefix; (void)prefixSize; /* to be done later */
if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
return ERROR(compressionParameter_unsupported);
}
-ZSTDLIB_API size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict)
+size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict)
{
if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
cctx->cdict = cdict;
@@ -414,6 +414,13 @@
}
+void ZSTD_CCtx_reset(ZSTD_CCtx* cctx)
+{
+ cctx->streamStage = zcss_init;
+ cctx->frameContentSize = ZSTD_CONTENTSIZE_UNKNOWN;
+ cctx->cdict = NULL;
+}
+
/** ZSTD_checkParams() :
ensure param values remain within authorized range.
@return : 0, or an error code if one value is beyond authorized range */
diff --git a/lib/zstd.h b/lib/zstd.h
index eb72fc4..a195438 100644
--- a/lib/zstd.h
+++ b/lib/zstd.h
@@ -819,10 +819,11 @@
/*! ZSTD_CCtx_reset() :
* Return a CCtx to clean state.
* Useful after an error, or to interrupt an ongoing compression job and start a new one.
- * It's possible to modify compression parameters after a reset.
* Any internal data not yet flushed is cancelled.
+ * Dictionary (if any) is dropped, next compression starts with srcSize==unknown by default.
+ * It's possible to modify compression parameters after a reset.
*/
-ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx); /* Not ready yet ! */
+ZSTDLIB_API void ZSTD_CCtx_reset(ZSTD_CCtx* cctx); /* Not ready yet ! */
/*! ZSTD_compress_generic_simpleArgs() :