95 lines
2.8 KiB
C#
95 lines
2.8 KiB
C#
/*
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Copyright (c) 2017, John Lewin
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System;
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using System.IO;
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namespace MatterHackers.MatterControl.Library
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{
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// Replace with KnownLength stream. Callers can
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public class KnownLengthStream : Stream
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{
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protected Stream BaseStream;
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public KnownLengthStream(Stream sourceStream, long Length)
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{
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this.Length = Length;
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}
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public override bool CanRead => this.BaseStream.CanRead;
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public override bool CanSeek => this.BaseStream.CanRead;
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public override bool CanWrite => this.BaseStream.CanRead;
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public override long Length { get; }
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public override long Position
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{
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get { return this.BaseStream.Position; }
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set { this.BaseStream.Position = value; }
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}
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public override void Flush()
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{
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this.BaseStream.Flush();
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}
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public override int Read(byte[] buffer, int offset, int count)
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{
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return this.BaseStream.Read(buffer, offset, count);
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}
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public override long Seek(long offset, SeekOrigin origin)
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{
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return this.BaseStream.Seek(offset, origin);
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}
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public override void SetLength(long value)
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{
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this.BaseStream.SetLength(value);
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}
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public override void Write(byte[] buffer, int offset, int count)
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{
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this.BaseStream.Write(buffer, offset, count);
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}
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}
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public class StreamAndLength : IDisposable
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{
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public long Length { get; set; }
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public Stream Stream { get; set; }
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public void Dispose()
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{
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this.Stream?.Dispose();
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}
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}
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}
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