1 #region Copyright notice and license 2 // Copyright 2015 gRPC authors. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 #endregion 16 using System; 17 using System.Runtime.InteropServices; 18 using System.Threading.Tasks; 19 20 namespace Grpc.Core.Internal 21 { 22 /// <summary> 23 /// Owned char* object. 24 /// </summary> 25 internal class CStringSafeHandle : SafeHandleZeroIsInvalid 26 { 27 static readonly NativeMethods Native = NativeMethods.Get(); 28 CStringSafeHandle()29 private CStringSafeHandle() 30 { 31 } 32 GetValue()33 public string GetValue() 34 { 35 return Marshal.PtrToStringAnsi(handle); 36 } 37 ReleaseHandle()38 protected override bool ReleaseHandle() 39 { 40 Native.gprsharp_free(handle); 41 return true; 42 } 43 } 44 } 45