IEnumerable <T[]> BlobSmtDecoder <T>(IList <OsmBlob> blobs, Func <OsmBlob, byte[], T[]> decode)
{
//return blobs.SelectParallelEnumerable(blob =>
return(blobs.Select(blob =>
{
// --- Thread-Buffer abfragen ---
int threadId = Thread.CurrentThread.ManagedThreadId;
byte[] buf;
lock (SmtCache)
{
if (!SmtCache.TryGetValue(threadId, out buf))
{
buf = new byte[16777216 * 2];
SmtCache.Add(threadId, buf);
}
lock (runningThreads)
{
runningThreads.Add(Thread.CurrentThread);
}
}
// --- lesen ---
var tim = Stopwatch.StartNew();
lock (pbfReader)
{
int pbfOfs = pbfReader.PrepareBuffer(blob.pbfOfs + blob.zlibOfs, blob.zlibLen);
Array.Copy(pbfReader.buffer, pbfOfs, buf, 16777216, blob.zlibLen);
}
tim.Stop();
lock (times)
{
times.Add(tim.ElapsedMilliseconds);
}
// --- entpacken ---
int bytes = ProtoBuf.FastInflate(buf, 16777216, blob.zlibLen, buf, 0);
if (bytes != blob.rawSize)
{
throw new PbfParseException();
}
buf[bytes] = 0;
// --- decoden ---
return decode(blob, buf);
//}, priority: ThreadPriority.Lowest);
}));
}
