protected sealed override async Task start()
{
if (_current == null)
{
_disposable = Disposable.GetValue();
_current = Activity;
}
try
{
var task = _current.Start();
Status = _current.Status;
await task;
Status = _current.Status;
if (_current.Status == ActivityStatus.Suspended)
{
return;
}
}
catch
{
if (_disposable != null)
{
_disposable.Dispose();
_disposable = null;
}
throw;
}
if (_disposable != null)
{
_disposable.Dispose();
_disposable = null;
}
}