private Task <bool> DetectAndReceive(Memory <byte> payload)
{
if (SiemensPlcProtocolContext.TryDetectDatagramType(payload, out var s7DatagramType))
{
return(S7DatagramReceived(s7DatagramType, payload));
}
return(Task.FromResult(false));
}
private Task <bool> DetectAndReceive(Memory <byte> payload)
{
if (_s7Context.TryDetectDatagramType(payload, out var s7DatagramType))
{
S7DatagramReceived(s7DatagramType, payload);
return(Task.FromResult(true));
}
return(Task.FromResult(false));
}
private async Task <int> Rfc1006DatagramReceived(Type datagramType, Memory <byte> buffer)
{
var processed = 0;
if (datagramType == typeof(ConnectionConfirmedDatagram))
{
var res = ConnectionConfirmedDatagram.TranslateFromMemory(buffer, out processed);
await ReceivedConnectionConfirmed();
}
else if (datagramType == typeof(DataTransferDatagram))
{
var datagram = DataTransferDatagram.TranslateFromMemory(buffer.Slice(processed), _context, out var needMoreData, out processed);
if (!needMoreData && _s7Context.TryDetectDatagramType(datagram.Payload, out var s7DatagramType))
{
await SiemensPlcDatagramReceived(s7DatagramType, datagram.Payload);
}
}
return(processed);
}
