public async Task StartAsync(Uri url, TransferFormat transferFormat)
{
if (url == null)
{
throw new ArgumentNullException(nameof(url));
}
if (transferFormat != TransferFormat.Binary && transferFormat != TransferFormat.Text)
{
throw new ArgumentException(
$"The '{transferFormat}' transfer format is not supported by this transport.",
nameof(transferFormat));
}
Log.StartTransport(_logger, transferFormat);
// Create connection
_startTask = new TaskCompletionSource <object>();
((IJSInProcessRuntime)JSRuntime.Current).Invoke <object>(
"BlazorSignalR.WebSocketsTransport.CreateConnection", url.ToString(),
transferFormat == TransferFormat.Binary, new DotNetObjectRef(this));
await _startTask.Task;
_startTask = null;
Log.StartedTransport(_logger);
// Create the pipe pair (Application's writer is connected to Transport's reader, and vice versa)
PipeOptions options = ClientPipeOptions.DefaultOptions;
DuplexPipe.DuplexPipePair pair = DuplexPipe.CreateConnectionPair(options, options);
_transport = pair.Transport;
_application = pair.Application;
Running = ProcessSocketAsync();
}
public Task StartAsync(Uri url, TransferFormat transferFormat, CancellationToken cancellationToken)
{
if (transferFormat != TransferFormat.Text)
{
throw new ArgumentException(
$"The '{transferFormat}' transfer format is not supported by this transport.",
nameof(transferFormat));
}
Log.StartTransport(_logger, transferFormat);
// Create pipe
PipeOptions options = ClientPipeOptions.DefaultOptions;
DuplexPipe.DuplexPipePair pair = DuplexPipe.CreateConnectionPair(options, options);
_transport = pair.Transport;
_application = pair.Application;
// Start streams
Running = ProcessAsync(url, default);
return(Task.CompletedTask);
}