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Signal parameter change during MT compression

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This commit is contained in:
Yann Collet 2022-12-28 13:14:58 -08:00
parent 89342d1e07
commit b17743e41b
1 changed files with 9 additions and 2 deletions
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11
lib/compress/zstd_compress.c
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@ -664,7 +664,7 @@ size_t ZSTD_CCtx_setParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, int value)
if (ZSTD_isUpdateAuthorized(param)) {
cctx->cParamsChanged = 1;
} else {
RETURN_ERROR(stage_wrong, "can only set params in ctx init stage");
RETURN_ERROR(stage_wrong, "can only set params in cctx init stage");
} }
switch(param)
@ -1103,8 +1103,15 @@ size_t ZSTD_CCtx_setParametersUsingCCtxParams(
size_t ZSTD_CCtx_setCParams(ZSTD_CCtx* cctx, ZSTD_compressionParameters cparams)
{
FORWARD_IF_ERROR(ZSTD_checkCParams(cparams), "");
DEBUGLOG(4, "ZSTD_CCtx_setCParams");
assert(cctx != NULL);
if (cctx->streamStage != zcss_init) {
/* All parameters in @cparams are allowed to be updated during MT compression.
* This must be signaled, so that MT compression picks up the changes */
cctx->cParamsChanged = 1;
}
/* only update if parameters are valid */
FORWARD_IF_ERROR(ZSTD_checkCParams(cparams), "");
cctx->requestedParams.cParams = cparams;
return 0;
}