| #region Copyright notice and license |
| // Protocol Buffers - Google's data interchange format |
| // Copyright 2015 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| #endregion |
| |
| #if NET35 |
| using System; |
| using System.IO; |
| |
| namespace Google.Protobuf.Compatibility |
| { |
| /// <summary> |
| /// Extension methods for <see cref="Stream"/> in order to provide |
| /// backwards compatibility with .NET 3.5 |
| /// </summary> |
| public static class StreamExtensions |
| { |
| // 81920 seems to be the default buffer size used in .NET 4.5.1 |
| private const int BUFFER_SIZE = 81920; |
| |
| /// <summary> |
| /// Write the contents of the current stream to the destination stream |
| /// </summary> |
| public static void CopyTo(this Stream source, Stream destination) |
| { |
| if (destination == null) |
| { |
| throw new ArgumentNullException(nameof(destination)); |
| } |
| |
| byte[] buffer = new byte[BUFFER_SIZE]; |
| int numBytesRead; |
| while ((numBytesRead = source.Read(buffer, 0, buffer.Length)) > 0) { |
| destination.Write(buffer, 0, numBytesRead); |
| } |
| } |
| } |
| } |
| #endif |
