public override async Task CloseAsync(WebSocketCloseStatus closeStatus, string statusDescription,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
bool callClose = false;
lock (_stateLock)
{
callClose = (_state != WebSocketState.CloseSent) && (_state != WebSocketState.Closed);
}
InterlockedCheckAndUpdateCloseState(WebSocketState.CloseSent, s_validCloseStates);
using (CancellationTokenRegistration ctr = ThrowOrRegisterCancellation(cancellationToken))
{
if (callClose)
{
_messageWebSocket.Close((ushort)closeStatus, statusDescription ?? String.Empty);
}
var result = await _closeWebSocketReceiveResultTcs.Task;
_closeStatus = result.CloseStatus;
_closeStatusDescription = result.CloseStatusDescription;
InterlockedCheckAndUpdateCloseState(WebSocketState.CloseReceived, s_validCloseStates);
}
}
void OnDestroy()
{
if (ws != null)
{
#if WINDOWS_UWP
ws.Close(1000, "Disconnect function is called.");
#else
ws.Close();
ws = null;
#endif
}
}
private async void ws_MessageReceived(MessageWebSocket sender, MessageWebSocketMessageReceivedEventArgs args)
{
try {
// throws Exception if eof is received, which is the case for example if auth fails
var reader = args.GetDataReader();
var message = reader.ReadString(reader.UnconsumedBufferLength);
await StoreUtil.OnUiThread(() => OnMessageReceived(message));
} catch (Exception) {
// assumes eof has been received i.e. the server has closed the connection
// http://msdn.microsoft.com/en-US/library/windows/apps/hh701366
ws.Close(1005, String.Empty);
}
}
public async void Close()
{
using (var releaser = await _WebSocketLock.LockAsync())
{
MessageWebSocket.Close(0x8, "");
}
}
public static async void CloseSocket()
{
if (!socketIsConnected)
{
return;
}
try
{
socket.Close(1000, "Closed due to user request.");
socket.Dispose();
socket = null;
socketIsConnected = false;
if (!App.isRPi)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
var currentPage = ((ContentControl)Window.Current.Content).Content as Page;
var serviceStatus = currentPage.FindName("serviceStatus") as Image;
serviceStatus.Opacity = 0.2;
var droneStatus = currentPage.FindName("droneStatus") as Image;
droneStatus.Opacity = 0.2;
});
}
else
{
Debug.WriteLine("Web socket closed!");
}
}
catch (Exception ex)
{
Debug.WriteLine("Error closing socket: " + ex.Message);
}
}
internal override async Task <bool> Stop(ulong timeout)
{
WSLOG("Stop");
_mustStop = true;
if (_reconnectionTimer != null)
{
_reconnectionTimer.Cancel();
}
foreach (Queue <WSRequest> queue in _workingRequests)
{
while (queue.Count > 0)
{
WSRequest wsRequest = queue.Peek();
await wsRequest.getResponseBytes();
if (queue.Contains(wsRequest))
{
queue.Dequeue();
}
}
}
_webSock.Close(1000, "");
//_outDataWriter = null;
WSLOG("Stop end");
return(false);
}
private void Close_Click(object sender, RoutedEventArgs e)
{
try
{
if (messageWebSocket != null)
{
rootPage.NotifyUser("Closing", NotifyType.StatusMessage);
messageWebSocket.Close(1000, "Closed due to user request.");
messageWebSocket = null;
}
else
{
rootPage.NotifyUser("No active WebSocket, send something first", NotifyType.StatusMessage);
}
}
catch (Exception ex)
{
WebErrorStatus status = WebSocketError.GetStatus(ex.GetBaseException().HResult);
if (status == WebErrorStatus.Unknown)
{
throw;
}
// Normally we'd use the status to test for specific conditions we want to handle specially,
// and only use ex.Message for display purposes. In this sample, we'll just output the
// status for debugging here, but still use ex.Message below.
rootPage.NotifyUser("Error: " + status, NotifyType.ErrorMessage);
OutputField.Text += ex.Message + "\r\n";
}
}
protected override void DoClose()
{
if (ws != null)
{
try
{
ws.Closed -= ws_Closed;
//ws.MessageReceived -= ws_MessageReceived;
if (dataWriter != null)
{
dataWriter.Dispose();
dataWriter = null;
}
ws.Close(1000, "DoClose");
ws.Dispose();
ws = null;
}
catch (Exception e)
{
var log = LogManager.GetLogger(Global.CallerName());
log.Info("DoClose ws.Close() Exception= " + e.Message);
}
}
}
private async Task OpenWebSocketAsync()
{
_closeTaskCompletionSource = new TaskCompletionSource <object>();
try
{
var webSocketUrl = (await GetApiInfoAsync()).WebSocketServerUrl + "/client";
_webSocket = new MessageWebSocket();
_webSocket.Control.MessageType = SocketMessageType.Utf8;
_webSocket.MessageReceived += (s, e) => Task.Run(() => HandleMessage(e));
_webSocket.Closed += (s, e) => Task.Run(() => HandleConnectionClose());
await _webSocket.ConnectAsync(new Uri(webSocketUrl));
_socketWriter = new DataWriter(_webSocket.OutputStream);
await AuthenticateAsync();
SetChannelState(ChannelState.Connected);
}
catch
{
try
{
if (_webSocket != null)
{
_webSocket.Close(1000, "Abnormal Closure");
}
}
catch { }
throw;
}
}
private void CloseSocket()
{
if (messageWriter != null)
{
// In order to reuse the socket with another DataWriter, the socket's output stream needs to be detached.
// Otherwise, the DataWriter's destructor will automatically close the stream and all subsequent I/O operations
// invoked on the socket's output stream will fail with ObjectDisposedException.
//
// This is only added for completeness, as this sample closes the socket in the very next code block.
messageWriter.DetachStream();
messageWriter.Dispose();
messageWriter = null;
}
if (messageWebSocket != null)
{
try
{
messageWebSocket.Close(1000, "Closed due to user request.");
}
catch (Exception ex)
{
AppendOutputLine(MainPage.BuildWebSocketError(ex));
AppendOutputLine(ex.Message);
}
messageWebSocket = null;
}
}
public void StopConnection()
{
if (w != null)
{
w.Close(1000, "Done");
}
}
public void UnInitialize()
{
if (webSocket != null)
{
webSocket.Close(1000, "Normal Shutdown");
}
}
public async void Close()
{
using (var releaser = await _WebSocketLock.LockAsync())
{
MessageWebSocket.Close(0x8, "");
WatchingHeartbaetTimer?.Dispose();
}
}
internal void disconnect()
{
Debug.WriteLine("WSC disconnect()...");
if (socket != null)
{
socket.Close(1000, "OK");
socket = null;
connected = false;
}
/*if (keepAliveSender != null)
* {
* keepAliveSender.shutdown();
* keepAliveSender = null;
* }*/
}
public void disconnect()
{
Debug.WriteLine("WSC disconnect()...");
if (socket != null)
{
socket.Close(1000, "OK");
socket = null;
connected = false;
Closed?.Invoke(this, EventArgs.Empty);
}
/*if (keepAliveSender != null)
* {
* keepAliveSender.shutdown();
* keepAliveSender = null;
* }*/
}
public void Close()
{
_DataWriter?.DetachStream();
_DataWriter = null;
_CommentSessionWebSocket?.Close(1000, "");
_CommentSessionWebSocket = null;
IsConnected = false;
}
public void Close()
{
#if WINDOWS_UWP
ws.Close(1000, "Disconnect function is called.");
ws = null;
#else
ws.Close();
ws = null;
#endif
}
public Task <InvokeResult> CloseAsync()
{
if (_webSocket != null)
{
_webSocket.Close(1000, String.Empty);
_webSocket.Dispose();
_webSocket = null;
}
return(Task.FromResult(InvokeResult.Success));
}
/// <summary>
/// クライアント機能を停止
/// </summary>
public void DisconnectServer()
{
#if UNITY_UWP
ws.MessageReceived -= MessageReceived;
ws.Dispose();
ws = null;
#elif UNITY_EDITOR || UNITY_STANDALONE
ws.OnMessage -= OnMessage;
ws.Close();
ws = null;
#endif
}
public override async Task CloseAsync()
{
try
{
messageWebSocket.Close(1, "closed by user");
await Task.CompletedTask;
}
catch (Exception e)
{
OnError?.Invoke("Close:" + e.Message);
}
}
public void CloseAsync()
{
if (socket == null)
{
return;
}
try {
isOpened = false;
socket.Close(1000, "User closed");
} catch (Exception ex) {
RaiseError(ex.Message);
}
}
public void Close()
{
if (socket != null)
{
try {
socket.Close(1000, "Closed due to user request.");
}
catch (Exception ex) {
OnError.Invoke(this, new ErrorEventArgs(ex.Message));
}
socket = null;
}
}
// closes the websocket connection to the ROSbridge server
public void Disconnect()
{
#if WINDOWS_UWP
try
{
webSock.Close(0, "");
}
catch (System.Exception e)
{
Debug.Log("Exception: {Disconnect}" + e.ToString());
}
finally {}
#endif
}
/// <summary>
/// Stops listening for bridge events.
/// </summary>
public void StopStream()
{
if (running)
{
running = false;
clientWriter.Dispose();
client.Close(1000, "Closed");
client.Dispose();
}
else
{
throw new InvalidOperationException("Bridge stream is already stopped.");
}
}
public void Disconnect()
{
try
{
_webSocket?.Close(0, "Disconnected");
}
catch
{
WebSocket_Closed(_webSocket, null);
}
finally
{
_webSocket = null;
}
}
private void CloseSocket()
{
if (messageWebSocket != null)
{
try
{
messageWebSocket.Close(1000, "Closed due to user request.");
}
catch (Exception ex)
{
Debug.Log(ex.Message);
}
messageWebSocket = null;
}
}
public void Close()
{
if (pending != null)
{
pending.Dispose();
pending = null;
}
if (streamWebSocket != null)
{
streamWebSocket.Close(1000, "Normal closure");
streamWebSocket.Dispose();
streamWebSocket = null;
}
}
private void CloseSocket()
{
if (messageWebSocket != null)
{
try
{
messageWebSocket.Close(1000, "Closed due to user request.");
}
catch (Exception ex)
{
AppendOutputLine(MainPage.BuildWebSocketError(ex));
AppendOutputLine(ex.Message);
}
messageWebSocket = null;
}
}
public void disconnect()
{
Debug.WriteLine("WSC disconnect()...");
if (socket != null)
{
socket.Close(1000, "None");
socket = null;
}
/*if (keepAliveSender != null)
* {
* keepAliveSender.shutdown();
* keepAliveSender = null;
* }*/
}
public bool CloseWebSocket()
{
bool worked = false;
if (webSocket != null)
{
try
{
webSocket.Close(0, "App Closing");
worked = true;
}
catch (Exception)
{ }
webSocket = null;
}
return(worked);
}
