public static Memory <byte> TranslateToMemory(S7HeaderDatagram datagram)
{
var length = datagram.GetMemorySize();
var result = new Memory <byte>(new byte[length]); // check if we could use ArrayBuffer
var span = result.Span;
span[0] = datagram.ProtocolId;
span[1] = datagram.PduType;
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(2, 2), datagram.RedundancyIdentification);
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(4, 2), datagram.ProtocolDataUnitReference);
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(6, 2), datagram.ParamLength);
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(8, 2), datagram.DataLength);
return(result);
}
public static IMemoryOwner <byte> TranslateToMemory(S7HeaderDatagram datagram, int length, out int memoryLength)
{
memoryLength = length == -1 ? datagram.GetMemorySize() : length;
var result = MemoryPool <byte> .Shared.Rent(memoryLength);
var span = result.Memory.Slice(0, memoryLength).Span;
span[0] = datagram.ProtocolId;
span[1] = datagram.PduType;
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(2, 2), datagram.RedundancyIdentification);
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(4, 2), datagram.ProtocolDataUnitReference);
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(6, 2), datagram.ParamLength);
BinaryPrimitives.WriteUInt16BigEndian(span.Slice(8, 2), datagram.DataLength);
return(result);
}