/// <summary>
/// reads a message from connection
/// </summary>
/// <param name="buffer">buffer where the message will be written</param>
/// <returns>true if we got a message, false if we got disconnected</returns>
public async UniTask <int> ReceiveAsync(MemoryStream buffer)
{
while (kcp.PeekSize() < 0 && unreliable.PeekSize() < 0 && open)
{
isWaiting = true;
dataAvailable = AutoResetUniTaskCompletionSource.Create();
await dataAvailable.Task;
isWaiting = false;
}
if (!open)
{
Disconnected?.Invoke();
throw new EndOfStreamException();
}
if (unreliable.PeekSize() >= 0)
{
// we got a message in the unreliable channel
int msgSize = unreliable.PeekSize();
buffer.SetLength(msgSize);
unreliable.Receive(buffer.GetBuffer(), (int)buffer.Length);
buffer.Position = msgSize;
return(Channel.Unreliable);
}
else
{
int msgSize = kcp.PeekSize();
// we have some data, return it
buffer.SetLength(msgSize);
kcp.Receive(buffer.GetBuffer());
buffer.Position = msgSize;
// if we receive a disconnect message, then close everything
var dataSegment = new ArraySegment <byte>(buffer.GetBuffer(), 0, msgSize);
if (Utils.Equal(dataSegment, Goodby))
{
open = false;
Disconnected?.Invoke();
throw new EndOfStreamException();
}
return(Channel.Reliable);
}
}
