/** <inheritDoc /> */ public Task <TRes> InvokeAsync <TArg, TRes>(TK key, ICacheEntryProcessor <TK, TV, TArg, TRes> processor, TArg arg) { AsyncInstance.Invoke(key, processor, arg); return(AsyncInstance.GetTask(CacheOp.Invoke, r => { if (r == null) { return default(TRes); } var hasError = r.ReadBoolean(); if (hasError) { throw ReadException(r.Stream); } return r.ReadObject <TRes>(); })); }