#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;
using System.Collections.Generic;
using System.Text;
namespace Duplicati.Library.Utility
{
///
/// This is a stream wrapper that reports the current progress of reading or writing the stream to the supplied delegate
///
public class ProgressReportingStream : OverrideableStream
{
private readonly Action m_progress;
private long m_streamOffset;
public ProgressReportingStream(System.IO.Stream basestream, Action progress)
: base(basestream)
{
m_streamOffset = 0;
m_progress = progress;
}
public override int Read(byte[] buffer, int offset, int count)
{
ReportProgress();
int r = base.Read(buffer, offset, count);
m_streamOffset += r;
ReportProgress();
return r;
}
public override void Write(byte[] buffer, int offset, int count)
{
ReportProgress();
base.Write(buffer, offset, count);
m_streamOffset += count;
ReportProgress();
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
}
private void ReportProgress()
{
if (m_progress != null)
m_progress(m_streamOffset);
}
}
}