private async Task HubOnDisconnectedAsync(HubConnectionContext connection, Exception exception)
{
// send close message before aborting the connection
await SendCloseAsync(connection, exception);
// We wait on abort to complete, this is so that we can guarantee that all callbacks have fired
// before OnDisconnectedAsync
try
{
// Ensure the connection is aborted before firing disconnect
await connection.AbortAsync();
}
catch (Exception ex)
{
Log.AbortFailed(_logger, ex);
}
try
{
await _dispatcher.OnDisconnectedAsync(connection, exception);
}
catch (Exception ex)
{
Log.ErrorDispatchingHubEvent(_logger, "OnDisconnectedAsync", ex);
throw;
}
}
private async Task HubOnDisconnectedAsync(HubConnectionContext connection, Exception exception)
{
try
{
// We wait on abort to complete, this is so that we can guarantee that all callbacks have fired
// before OnDisconnectedAsync
try
{
// Ensure the connection is aborted before firing disconnect
await connection.AbortAsync();
}
catch (Exception ex)
{
_logger.AbortFailed(ex);
}
using (var scope = _serviceScopeFactory.CreateScope())
{
var hubActivator = scope.ServiceProvider.GetRequiredService <IHubActivator <THub> >();
var hub = hubActivator.Create();
try
{
InitializeHub(hub, connection);
await hub.OnDisconnectedAsync(exception);
}
finally
{
hubActivator.Release(hub);
}
}
}
catch (Exception ex)
{
_logger.ErrorInvokingHubMethod("OnDisconnectedAsync", ex);
throw;
}
}