private Datagram GetDatagram(AsyncEnumeratorContext context)
{
return(new Datagram(
context.Buffer.AsMemory(context.Offset, context.Length).ToArray(),
context.EndPoint.Address.GetAddressBytes(),
context.EndPoint.Port));
}
private Try <Datagram> TrySetContext(Try <Datagram> datagram, AsyncEnumeratorContext context)
{
if (datagram.IsException())
{
return(datagram);
}
if (!datagram.Value.TryGetEndPoint(out var endPoint) && !datagram.Value.IsEndPointEmpty())
{
return(new Try <Datagram>(CreateSocketException(SocketError.AddressNotAvailable, datagram.Value)));
}
context.EndPoint = endPoint;
if (!datagram.Value.Buffer.TryCopyTo(context.Buffer))
{
return(new Try <Datagram>(CreateSocketException(SocketError.MessageSize, datagram.Value)));
}
context.Length = datagram.Value.Buffer.Length;
return(datagram);
}
private async ValueTask ReceiveDatagramAsync(AsyncEnumeratorContext context)
{
var datagram = GetDatagram(context);
await WriteToOutputAsync(new Try <Datagram>(datagram));
}
