private async Task <PPError> TouchAsyncCore(DateTime lastAccessTime, DateTime lastModifiedTime, MessageLoop messageLoop = null) { var tcs = new TaskCompletionSource <PPError>(); EventHandler <PPError> handler = (s, e) => { tcs.TrySetResult(e); }; try { HandleTouch += handler; if (MessageLoop == null && messageLoop == null) { Touch(lastAccessTime, lastModifiedTime); } else { Action <PPError> action = new Action <PPError>((e) => { var result = (PPError)PPBFileRef.Touch(this, PepperSharpUtils.ConvertToPepperTimestamp(lastAccessTime), PepperSharpUtils.ConvertToPepperTimestamp(lastModifiedTime), new BlockUntilComplete() ); tcs.TrySetResult(result); } ); InvokeHelper(action, messageLoop); } return(await tcs.Task); } catch (Exception exc) { Console.WriteLine(exc.Message); tcs.SetException(exc); return(PPError.Aborted); } finally { HandleTouch -= handler; } }
/// <summary> /// Touch() Updates time stamps for a file. You must have write access to the /// file if it exists in the external filesystem. /// </summary> /// <param name="lastAccessTime">The last time the file was accessed.</param> /// <param name="lastModifiedTime">The last time the file was modified.</param> /// <returns>Ok if all went well</returns> public PPError Touch(DateTime lastAccessTime, DateTime lastModifiedTime) => (PPError)PPBFileRef.Touch(this, PepperSharpUtils.ConvertToPepperTimestamp(lastAccessTime), PepperSharpUtils.ConvertToPepperTimestamp(lastModifiedTime), new CompletionCallback(OnTouch));