chovy-sign/CHOVY-SIGN/DiscUtils/Compression/SizedDeflateStream.cs

64 lines
2.1 KiB
C#

//
// Copyright (c) 2014, Quamotion
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
using System;
using System.IO;
using System.IO.Compression;
namespace DiscUtils.Compression
{
internal class SizedDeflateStream : DeflateStream
{
private readonly int _length;
private int _position;
public SizedDeflateStream(Stream stream, CompressionMode mode, bool leaveOpen, int length)
: base(stream, mode, leaveOpen)
{
_length = length;
}
public override long Length
{
get { return _length; }
}
public override long Position
{
get { return _position; }
set
{
if (value != Position)
{
throw new NotImplementedException();
}
}
}
public override int Read(byte[] array, int offset, int count)
{
int read = base.Read(array, offset, count);
_position += read;
return read;
}
}
}