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 using System; 20 using System.Threading.Tasks; 21 22 namespace Grpc.Core.Utils 23 { 24 /// <summary> 25 /// Utility methods for task parallel library. 26 /// </summary> 27 public static class TaskUtils 28 { 29 /// <summary> 30 /// Framework independent equivalent of <c>Task.CompletedTask</c>. 31 /// </summary> 32 public static Task CompletedTask 33 { 34 get 35 { 36 #if NETSTANDARD1_5 37 return Task.CompletedTask; 38 #else 39 return Task.FromResult<object>(null); // for .NET45, emulate the functionality 40 #endif 41 } 42 } 43 } 44 } 45