| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #endregion |
| |
| using System; |
| using System.Runtime.InteropServices; |
| using Grpc.Core.Utils; |
| |
| namespace Grpc.Core.Internal |
| { |
| /// <summary> |
| /// grpc_call_error from grpc/grpc.h |
| /// </summary> |
| internal enum CallError |
| { |
| /* everything went ok */ |
| OK = 0, |
| /* something failed, we don't know what */ |
| Error, |
| /* this method is not available on the server */ |
| NotOnServer, |
| /* this method is not available on the client */ |
| NotOnClient, |
| /* this method must be called before server_accept */ |
| AlreadyAccepted, |
| /* this method must be called before invoke */ |
| AlreadyInvoked, |
| /* this method must be called after invoke */ |
| NotInvoked, |
| /* this call is already finished |
| (writes_done or write_status has already been called) */ |
| AlreadyFinished, |
| /* there is already an outstanding read/write operation on the call */ |
| TooManyOperations, |
| /* the flags value was illegal for this call */ |
| InvalidFlags |
| } |
| |
| internal static class CallErrorExtensions |
| { |
| /// <summary> |
| /// Checks the call API invocation's result is OK. |
| /// </summary> |
| public static void CheckOk(this CallError callError) |
| { |
| if (callError != CallError.OK) |
| { |
| throw new InvalidOperationException("Call error: " + callError); |
| } |
| } |
| } |
| } |