private async ValueTask InvokeAllAsync(Ice.OutputStream os, int requestId) { // The object adapter DirectCount was incremented by the caller and we are responsible to decrement it // upon completion. Ice.Instrumentation.IDispatchObserver?dispatchObserver = null; try { if (_traceLevels.Protocol >= 1) { FillInValue(os, new Ice.OutputStream.Position(0, 10), os.Size); if (requestId > 0) { FillInValue(os, new Ice.OutputStream.Position(0, Ice1Definitions.HeaderSize), requestId); } TraceUtil.TraceSend(os, _logger, _traceLevels); } // TODO Avoid copy OutputStream buffer var requestFrame = new Ice.InputStream(os.Communicator, os.Encoding, os.ToArray()); requestFrame.Pos = Ice1Definitions.RequestHeader.Length; int start = requestFrame.Pos; var current = new Ice.Current(requestId, requestFrame, _adapter); // Then notify and set dispatch observer, if any. Ice.Instrumentation.ICommunicatorObserver?communicatorObserver = _adapter.Communicator.Observer; if (communicatorObserver != null) { int encapsSize = requestFrame.GetEncapsulationSize(); dispatchObserver = communicatorObserver.GetDispatchObserver(current, requestFrame.Pos - start + encapsSize); dispatchObserver?.Attach(); } bool amd = true; try { Ice.IObject?servant = current.Adapter.Find(current.Id, current.Facet); if (servant == null) { amd = false; throw new Ice.ObjectNotExistException(current.Id, current.Facet, current.Operation); } ValueTask <Ice.OutputStream> vt = servant.DispatchAsync(requestFrame, current); amd = !vt.IsCompleted; if (requestId != 0) { Ice.OutputStream responseFrame = await vt.ConfigureAwait(false); dispatchObserver?.Reply(responseFrame.Size - Ice1Definitions.HeaderSize - 4); SendResponse(requestId, responseFrame, amd); } } catch (System.Exception ex) { if (requestId != 0) { Ice.RemoteException actualEx; if (ex is Ice.RemoteException remoteEx && !remoteEx.ConvertToUnhandled) { actualEx = remoteEx; } else { actualEx = new UnhandledException(current.Id, current.Facet, current.Operation, ex); } Incoming.ReportException(actualEx, dispatchObserver, current); var responseFrame = new Ice.OutgoingResponseFrame(current, actualEx); dispatchObserver?.Reply(responseFrame.Size - Ice1Definitions.HeaderSize - 4); SendResponse(requestId, responseFrame, amd); } } }