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#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);
}
}
}
}
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