added error detection for pthread initialization, added compression completion measurement, fixed const values

2017-07-17 10:12:44 -07:00
parent 1ab3f06f00
commit 50ce4eaeb6
3 changed files with 131 additions and 53 deletions
@@ -140,6 +140,9 @@ struct ZSTD_CCtx_s {
    /* Multi-threading */
    U32 nbThreads;
    ZSTDMT_CCtx* mtctx;
+
+    /* adaptive compression */
+    double completion;
 };


@@ -2845,6 +2848,7 @@ static size_t ZSTD_compress_frameChunk (ZSTD_CCtx* cctx,
    BYTE* op = ostart;
    U32 const maxDist = 1 << cctx->appliedParams.cParams.windowLog;

+    cctx->completion = 0;
    if (cctx->appliedParams.fParams.checksumFlag && srcSize)
        XXH64_update(&cctx->xxhState, src, srcSize);

@@ -2895,6 +2899,7 @@ static size_t ZSTD_compress_frameChunk (ZSTD_CCtx* cctx,
        }

        remaining -= blockSize;
+        cctx->completion = 1 - (double)remaining/srcSize;
        dstCapacity -= cSize;
        ip += blockSize;
        op += cSize;
@@ -2997,6 +3002,10 @@ static size_t ZSTD_compressContinue_internal (ZSTD_CCtx* cctx,
        return fhSize;
 }

+ZSTDLIB_API double ZSTD_getCompletion(ZSTD_CCtx* cctx)
+{
+    return cctx->completion;
+}

 size_t ZSTD_compressContinue (ZSTD_CCtx* cctx,
                              void* dst, size_t dstCapacity,