public Task SendAsync(INetworkPacket package)
{
if (package == null)
{
throw new ArgumentNullException(nameof(package));
}
if (_socket == null)
{
throw new NullReferenceException(nameof(_socket));
}
if (_serializer == null)
{
throw new NullReferenceException(nameof(_serializer));
}
if (_endpoint == null)
{
throw new NullReferenceException(nameof(_endpoint));
}
using (var stream = new MemoryStream())
{
var length = _serializer.Serialize(package, stream);
var state = new OrderedAsyncState();
state.Client = _socket;
state.ReadEventArgs.RemoteEndPoint = _endpoint;
state.ReadEventArgs.SetBuffer(stream.ToArray(), 0, length);
state.ReadEventArgs.AcceptSocket = _socket;
state.ReadEventArgs.UserToken = state;
state.ReadEventArgs.Completed += OnCompleted;
state.ReceiveAsync = e =>
{
var receiveBuffer = new byte[MAX_BUFFER_SIZE];
e.SetBuffer(receiveBuffer, 0, receiveBuffer.Length);
return(e.AcceptSocket.ReceiveAsync(e));
};
var result = _socket.SendToAsync(state.ReadEventArgs);
return(Task.CompletedTask);
}
}
public bool ListenAsync()
{
_socket.Bind(_endpoint);
_socket.Listen(1);
var state = new OrderedAsyncState();
state.ReadEventArgs.UserToken = state;
state.ReadEventArgs.Completed += OnCompleted;
state.ReceiveAsync = e =>
{
var receiveBuffer = new byte[MAX_BUFFER_SIZE];
e.SetBuffer(receiveBuffer, 0, receiveBuffer.Length);
return(e.AcceptSocket.ReceiveAsync(e));
};
return(_socket.AcceptAsync(state.ReadEventArgs));
}
public bool ListenAsync()
{
var state = new OrderedAsyncState();
state.Client = _socket;
state.ReadEventArgs.RemoteEndPoint = _endpoint ?? throw new ArgumentNullException(nameof(_endpoint)); // used to bind
state.ReadEventArgs.SetBuffer(new byte[MAX_BUFFER_SIZE], 0, MAX_BUFFER_SIZE);
state.ReadEventArgs.AcceptSocket = _socket;
state.ReadEventArgs.UserToken = state;
state.ReadEventArgs.Completed += OnCompleted;
state.ReceiveAsync = e =>
{
var receiveBuffer = new byte[MAX_BUFFER_SIZE];
e.SetBuffer(receiveBuffer, 0, receiveBuffer.Length);
return(e.AcceptSocket.ReceiveFromAsync(e));
};
_socket.Bind(_endpoint);
return(_socket.ReceiveFromAsync(state.ReadEventArgs));
}
