76 lines
3.0 KiB
C#
76 lines
3.0 KiB
C#
#region Disclaimer / License
|
|
// Copyright (C) 2015, The Duplicati Team
|
|
// http://www.duplicati.com, info@duplicati.com
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Lesser General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2.1 of the License, or (at your option) any later version.
|
|
//
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
//
|
|
#endregion
|
|
using System;
|
|
|
|
namespace Duplicati.Library.Utility
|
|
{
|
|
/// <summary>
|
|
/// A small utility stream that allows to keep streams open and counts the bytes sent through.
|
|
/// </summary>
|
|
public class ShaderStream : System.IO.Stream
|
|
{
|
|
private readonly System.IO.Stream m_baseStream;
|
|
private readonly bool m_keepBaseOpen;
|
|
private long m_read = 0;
|
|
private long m_written = 0;
|
|
|
|
public ShaderStream(System.IO.Stream baseStream, bool keepBaseOpen)
|
|
{
|
|
if (baseStream == null)
|
|
throw new ArgumentNullException(nameof(baseStream));
|
|
this.m_baseStream = baseStream;
|
|
this.m_keepBaseOpen = keepBaseOpen;
|
|
}
|
|
|
|
public long TotalBytesRead { get { return m_read; } }
|
|
public long TotalBytesWritten { get { return m_written; } }
|
|
|
|
public override bool CanRead { get { return m_baseStream.CanRead; } }
|
|
public override bool CanSeek { get { return m_baseStream.CanSeek; } }
|
|
public override bool CanWrite { get { return m_baseStream.CanWrite; } }
|
|
public override long Length { get { return m_baseStream.Length; } }
|
|
public override long Position
|
|
{
|
|
get { return m_baseStream.Position; }
|
|
set { m_baseStream.Position = value; }
|
|
}
|
|
public override void Flush() { m_baseStream.Flush(); }
|
|
public override long Seek(long offset, System.IO.SeekOrigin origin) { return m_baseStream.Seek(offset, origin); }
|
|
public override void SetLength(long value) { m_baseStream.SetLength(value); }
|
|
public override int Read(byte[] buffer, int offset, int count)
|
|
{
|
|
int r = m_baseStream.Read(buffer, offset, count);
|
|
m_read += r;
|
|
return r;
|
|
}
|
|
public override void Write(byte[] buffer, int offset, int count)
|
|
{
|
|
m_baseStream.Write(buffer, offset, count);
|
|
m_written += count;
|
|
}
|
|
protected override void Dispose(bool disposing)
|
|
{
|
|
if (disposing && !m_keepBaseOpen)
|
|
m_baseStream.Close();
|
|
base.Dispose(disposing);
|
|
}
|
|
}
|
|
}
|