| #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 System.Text; |
| |
| namespace Grpc.Core.Internal |
| { |
| /// <summary> |
| /// Useful methods for native/managed marshalling. |
| /// </summary> |
| internal static class MarshalUtils |
| { |
| static readonly Encoding EncodingUTF8 = System.Text.Encoding.UTF8; |
| static readonly Encoding EncodingASCII = System.Text.Encoding.ASCII; |
| |
| /// <summary> |
| /// Converts <c>IntPtr</c> pointing to a UTF-8 encoded byte array to <c>string</c>. |
| /// </summary> |
| public static string PtrToStringUTF8(IntPtr ptr, int len) |
| { |
| var bytes = new byte[len]; |
| Marshal.Copy(ptr, bytes, 0, len); |
| return EncodingUTF8.GetString(bytes); |
| } |
| |
| /// <summary> |
| /// Returns byte array containing UTF-8 encoding of given string. |
| /// </summary> |
| public static byte[] GetBytesUTF8(string str) |
| { |
| return EncodingUTF8.GetBytes(str); |
| } |
| |
| /// <summary> |
| /// Get string from a UTF8 encoded byte array. |
| /// </summary> |
| public static string GetStringUTF8(byte[] bytes) |
| { |
| return EncodingUTF8.GetString(bytes); |
| } |
| |
| /// <summary> |
| /// Returns byte array containing ASCII encoding of given string. |
| /// </summary> |
| public static byte[] GetBytesASCII(string str) |
| { |
| return EncodingASCII.GetBytes(str); |
| } |
| |
| /// <summary> |
| /// Get string from an ASCII encoded byte array. |
| /// </summary> |
| public static string GetStringASCII(byte[] bytes) |
| { |
| return EncodingASCII.GetString(bytes); |
| } |
| } |
| } |