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