public async ValueTask <int> ReadAsync(Memory <byte> message, CancellationToken cancellationToken)
{
if (!MemoryMarshal.TryGetArray <byte>(message, out var segment))
{
Sally7Exception.ThrowMemoryWasNotArrayBased();
}
args.SetBuffer(segment.Array, segment.Offset, TpktSize);
int count = 0;
do
{
if (count > 0)
{
args.SetBuffer(segment.Offset + count, TpktSize - count);
}
cancellationToken.ThrowIfCancellationRequested();
await socket.ReceiveAsync(awaitable);
if (args.BytesTransferred <= 0)
{
TpktException.ThrowConnectionWasClosedWhileReading();
}
count += args.BytesTransferred;
} while (count < TpktSize);
int receivedLength = GetTpktLength(message.Span);
while (count < receivedLength)
{
cancellationToken.ThrowIfCancellationRequested();
args.SetBuffer(segment.Offset + count, receivedLength - count);
await socket.ReceiveAsync(awaitable);
if (args.BytesTransferred <= 0)
{
TpktException.ThrowConnectionWasClosedWhileReading();
}
count += args.BytesTransferred;
}
return(receivedLength);
}
public readonly void Assert()
{
if (Version != IsoVersion)
{
TpktException.ThrowIncorrectHeaderVersion();
}
if (Reserved != 0)
{
TpktException.ThrowReseveredNot0();
}
if (Length.High == 0 && Length.Low < 7)
{
TpktException.ThrowLengthSmallerThan7();
}
}
