1 #region Copyright notice and license 2 3 // Copyright 2019 The 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.Runtime.InteropServices; 21 using System.Threading; 22 using Grpc.Core.Utils; 23 24 namespace Grpc.Core.Internal 25 { 26 /// <summary> 27 /// Slice of native memory. 28 /// Rough equivalent of grpc_slice (but doesn't support inlined slices, just a pointer to data and length) 29 /// </summary> 30 internal struct Slice 31 { 32 private readonly IntPtr dataPtr; 33 private readonly int length; 34 SliceGrpc.Core.Internal.Slice35 public Slice(IntPtr dataPtr, int length) 36 { 37 this.dataPtr = dataPtr; 38 this.length = length; 39 } 40 41 public int Length => length; 42 ToSpanUnsafeGrpc.Core.Internal.Slice43 public Span<byte> ToSpanUnsafe() 44 { 45 unsafe 46 { 47 return new Span<byte>((byte*) dataPtr, length); 48 } 49 } 50 51 /// <summary> 52 /// Returns a <see cref="System.String"/> that represents the current <see cref="Grpc.Core.Internal.Slice"/>. 53 /// </summary> ToStringGrpc.Core.Internal.Slice54 public override string ToString() 55 { 56 return string.Format("[Slice: dataPtr={0}, length={1}]", dataPtr, length); 57 } 58 } 59 } 60