private WebSocketState GetReadyState()
{
int readyState = BrowserInterop.GetReadyState(_innerWebSocket);
// https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/readyState
return(readyState switch
{
0 => WebSocketState.Connecting, // 0 (CONNECTING)
1 => WebSocketState.Open, // 1 (OPEN)
2 => WebSocketState.CloseSent, // 2 (CLOSING)
3 => WebSocketState.Closed, // 3 (CLOSED)
_ => WebSocketState.None
});
private async Task ConnectAsyncCore(Uri uri, List <string>?requestedSubProtocols, CancellationToken cancellationToken)
{
try
{
string[]? subProtocols = requestedSubProtocols?.ToArray();
var onClose = (int code, string reason) =>
{
_closeStatus = (WebSocketCloseStatus)code;
_closeStatusDescription = reason;
WebSocketState state = State;
if (state == WebSocketState.Connecting || state == WebSocketState.Open || state == WebSocketState.CloseSent)
{
_state = WebSocketState.Closed;
}
};
Memory <int> responseMemory = new Memory <int>(responseStatus);
responseStatusHandle = responseMemory.Pin();
_innerWebSocket = BrowserInterop.UnsafeCreate(uri.ToString(), subProtocols, responseStatusHandle.Value, onClose);
var openTask = BrowserInterop.WebSocketOpen(_innerWebSocket);
var wrappedTask = CancelationHelper(openTask !, cancellationToken, _state);
await wrappedTask.ConfigureAwait(true);
if (State == WebSocketState.Connecting)
{
_state = WebSocketState.Open;
}
}
catch (OperationCanceledException ex)
{
_state = WebSocketState.Closed;
if (_aborted)
{
throw new WebSocketException(WebSocketError.Faulted, SR.net_webstatus_ConnectFailure, ex);
}
throw;
}
catch (Exception)
{
Dispose();
throw;
}
}