public static Task <TValue> GetAsyncX <TValue>(RedisDictionary <string, object> _dictionary, string key, Func <string, TValue> onAdd = null)
{
var result = _dictionary.GetOrAdd(key, (keyname) =>
{
var value = default(TValue);
if (onAdd != null)
{
value = onAdd.Invoke(keyname);
}
return(value);
});
var xxx = _dictionary.ValueSerializer.Deserialize <TValue>(result);
return(Task.FromResult(xxx));
}