private DaqData ProcessPacket(List <DaqDataPacket> packets, DaqDataPacket packet)
{
DaqData result = null;
if (packet.DataType == DaqDataType.DAQ_DATA)
{
packets.Add(packet);
if (lastGaps != null && packets.Count == PacketCountFor1Sec)
{
result = PopAndProcessAsyncPackets(packets);
}
}
else if (packet.DataType == DaqDataType.GAP_DATA)
{
if (lastGaps == null)
{
//연결 후 처음 gap 받은 시점(이전의 DAQ_DATA는 미완성 데이타)
packets.Clear();
}
var gapAndRpm = packet.ToWords();
lastGaps = gapAndRpm.Take(8).Select(w => ConvertGap(w)).ToArray();
lastRpm1 = ConvertRpm(packet.Bytes, 16);
lastRpm2 = ConvertRpm(packet.Bytes, 20);
}
return(result);
}
public DaqData FetchData()
{
List <DaqDataPacket> packets = new List <DaqDataPacket>();
DaqData result = null;
while (result == null)
{
var packet = DaqDataPacket.RecvDataPacket(this, qs, "fetch");
result = ProcessPacket(packets, packet);
}
return(result);
}
private DaqData PopAndProcessAsyncPackets(List <DaqDataPacket> packets)
{
var now = DateTime.UtcNow;
DaqData data = new DaqData();
//var gapAndRpm = packet.ToWords();
//data.ChannelsGap = gapAndRpm.Take(8).Select(w => ConvertGap(w)).ToArray();
//data.Rpm1 = ConvertRpm(packet.Bytes, 16);
//data.Rpm2 = ConvertRpm(packet.Bytes, 20);
data.ChannelsGap = lastGaps;
data.Rpm1 = lastRpm1;
data.Rpm2 = lastRpm2;
var totalDataCount = packets.Sum(p => p.Bytes.Length) / 2; //byte니까 2로 나눔
var iCurDataIndex = 0;
for (int iPacket = 0; iPacket < packets.Count; iPacket++)
{
var interleaved = packets[iPacket].ToShorts();
for (int iCh = 0; iCh < 8; iCh++)
{
if (data.ChannelsAsyncs[iCh] == null)
{
data.ChannelsAsyncs[iCh] = new float[totalDataCount / 8];
}
for (int i = 0; i < interleaved.Length / 8; i++)
{
data.ChannelsAsyncs[iCh][iCurDataIndex + i] = ConvertAsync(interleaved[i * 8 + iCh], iCh);
}
}
iCurDataIndex += interleaved.Length / 8;
}
lastProcessTime = now;
return(data);
}