86 lines
2.6 KiB
C#
86 lines
2.6 KiB
C#
//
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// Copyright (c) 2014, Quamotion
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.IO;
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using DiscUtils.Streams;
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using Buffer=DiscUtils.Streams.Buffer;
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namespace DiscUtils.Compression
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{
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internal class ZlibBuffer : Buffer
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{
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private Ownership _ownership;
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private readonly Stream _stream;
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private int position;
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public ZlibBuffer(Stream stream, Ownership ownership)
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{
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_stream = stream;
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_ownership = ownership;
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position = 0;
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}
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public override bool CanRead
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{
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get { return _stream.CanRead; }
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}
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public override bool CanWrite
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{
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get { return _stream.CanWrite; }
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}
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public override long Capacity
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{
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get { return _stream.Length; }
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}
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public override int Read(long pos, byte[] buffer, int offset, int count)
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{
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if (pos != position)
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{
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throw new NotSupportedException();
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}
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int read = _stream.Read(buffer, offset, count);
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position += read;
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return read;
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}
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public override void Write(long pos, byte[] buffer, int offset, int count)
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{
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throw new NotImplementedException();
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}
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public override void SetCapacity(long value)
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{
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throw new NotImplementedException();
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}
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public override IEnumerable<StreamExtent> GetExtentsInRange(long start, long count)
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{
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yield return new StreamExtent(0, _stream.Length);
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}
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}
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} |