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Update zstd to version 1.4.2

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This commit is contained in:
Tino Reichardt
2019-07-29 09:03:32 +02:00
parent f8d5879212
commit 1364288df0
26 changed files with 1466 additions and 1079 deletions
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25
C/zstd/zstdmt_compress.c
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@@ -1129,9 +1129,14 @@ size_t ZSTDMT_toFlushNow(ZSTDMT_CCtx* mtctx)
size_t const produced = ZSTD_isError(cResult) ? 0 : cResult;
size_t const flushed = ZSTD_isError(cResult) ? 0 : jobPtr->dstFlushed;
assert(flushed <= produced);
assert(jobPtr->consumed <= jobPtr->src.size);
toFlush = produced - flushed;
if (toFlush==0 && (jobPtr->consumed >= jobPtr->src.size)) {
/* doneJobID is not-fully-flushed, but toFlush==0 : doneJobID should be compressing some more data */
/* if toFlush==0, nothing is available to flush.
* However, jobID is expected to still be active:
* if jobID was already completed and fully flushed,
* ZSTDMT_flushProduced() should have already moved onto next job.
* Therefore, some input has not yet been consumed. */
if (toFlush==0) {
assert(jobPtr->consumed < jobPtr->src.size);
}
}
@@ -1148,12 +1153,16 @@ size_t ZSTDMT_toFlushNow(ZSTDMT_CCtx* mtctx)
static unsigned ZSTDMT_computeTargetJobLog(ZSTD_CCtx_params const params)
{
if (params.ldmParams.enableLdm)
unsigned jobLog;
if (params.ldmParams.enableLdm) {
/* In Long Range Mode, the windowLog is typically oversized.
* In which case, it's preferable to determine the jobSize
* based on chainLog instead. */
return MAX(21, params.cParams.chainLog + 4);
return MAX(20, params.cParams.windowLog + 2);
jobLog = MAX(21, params.cParams.chainLog + 4);
} else {
jobLog = MAX(20, params.cParams.windowLog + 2);
}
return MIN(jobLog, (unsigned)ZSTDMT_JOBLOG_MAX);
}
static int ZSTDMT_overlapLog_default(ZSTD_strategy strat)
@@ -1197,7 +1206,7 @@ static size_t ZSTDMT_computeOverlapSize(ZSTD_CCtx_params const params)
ovLog = MIN(params.cParams.windowLog, ZSTDMT_computeTargetJobLog(params) - 2)
- overlapRLog;
}
assert(0 <= ovLog && ovLog <= 30);
assert(0 <= ovLog && ovLog <= ZSTD_WINDOWLOG_MAX);
DEBUGLOG(4, "overlapLog : %i", params.overlapLog);
DEBUGLOG(4, "overlap size : %i", 1 << ovLog);
return (ovLog==0) ? 0 : (size_t)1 << ovLog;
@@ -1391,7 +1400,7 @@ size_t ZSTDMT_initCStream_internal(
FORWARD_IF_ERROR( ZSTDMT_resize(mtctx, params.nbWorkers) );
if (params.jobSize != 0 && params.jobSize < ZSTDMT_JOBSIZE_MIN) params.jobSize = ZSTDMT_JOBSIZE_MIN;
if (params.jobSize > (size_t)ZSTDMT_JOBSIZE_MAX) params.jobSize = ZSTDMT_JOBSIZE_MAX;
if (params.jobSize > (size_t)ZSTDMT_JOBSIZE_MAX) params.jobSize = (size_t)ZSTDMT_JOBSIZE_MAX;
mtctx->singleBlockingThread = (pledgedSrcSize <= ZSTDMT_JOBSIZE_MIN); /* do not trigger multi-threading when srcSize is too small */
if (mtctx->singleBlockingThread) {
@@ -1432,6 +1441,8 @@ size_t ZSTDMT_initCStream_internal(
if (mtctx->targetSectionSize == 0) {
mtctx->targetSectionSize = 1ULL << ZSTDMT_computeTargetJobLog(params);
}
assert(mtctx->targetSectionSize <= (size_t)ZSTDMT_JOBSIZE_MAX);
if (params.rsyncable) {
/* Aim for the targetsectionSize as the average job size. */
U32 const jobSizeMB = (U32)(mtctx->targetSectionSize >> 20);