// // 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.Collections.Generic; using System.IO; using DiscUtils.Streams; using Buffer=DiscUtils.Streams.Buffer; namespace DiscUtils.Compression { internal class ZlibBuffer : Buffer { private Ownership _ownership; private readonly Stream _stream; private int position; public ZlibBuffer(Stream stream, Ownership ownership) { _stream = stream; _ownership = ownership; position = 0; } public override bool CanRead { get { return _stream.CanRead; } } public override bool CanWrite { get { return _stream.CanWrite; } } public override long Capacity { get { return _stream.Length; } } public override int Read(long pos, byte[] buffer, int offset, int count) { if (pos != position) { throw new NotSupportedException(); } int read = _stream.Read(buffer, offset, count); position += read; return read; } public override void Write(long pos, byte[] buffer, int offset, int count) { throw new NotImplementedException(); } public override void SetCapacity(long value) { throw new NotImplementedException(); } public override IEnumerable GetExtentsInRange(long start, long count) { yield return new StreamExtent(0, _stream.Length); } } }