1 #region Copyright notice and license 2 3 // Copyright 2015 gRPC authors. 4 // 5 // Licensed under the Apache License, Version 2.0 (the "License"); 6 // you may not use this file except in compliance with the License. 7 // You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 17 #endregion 18 19 namespace Grpc.Core 20 { 21 /// <summary> 22 /// Token for propagating context of server side handlers to child calls. 23 /// In situations when a backend is making calls to another backend, 24 /// it makes sense to propagate properties like deadline and cancellation 25 /// token of the server call to the child call. 26 /// Underlying gRPC implementation may provide other "opaque" contexts (like tracing context) that 27 /// are not explicitly accesible via the public C# API, but this token still allows propagating them. 28 /// </summary> 29 public abstract class ContextPropagationToken 30 { ContextPropagationToken()31 internal ContextPropagationToken() 32 { 33 } 34 } 35 } 36