internal static IAsyncResult BeginOperation(Action <IAsyncContext> operation, AsyncConfig asyncConfig, [CallerMemberName] string beginMethod = null) {
internal AsyncResultContext(string beginMethod, Action <IAsyncContext> operation, AsyncConfig asyncConfig) { Operation = operation; BeginMethodName = beginMethod; if (asyncConfig == null) { return; } MaxDegreeOfParallelism = asyncConfig.MaxDegreeOfParallelism; callback = asyncConfig.CompletedCallback; AsyncState = asyncConfig.State; throwIfCanceled = asyncConfig.ThrowIfCanceled; isCancelRequestedCallback = asyncConfig.IsCancelRequestedCallback; Progress = asyncConfig.Progress; }