92 lines
2.3 KiB
C#
92 lines
2.3 KiB
C#
using System;
|
|
using System.IO;
|
|
using SharpCompress.Readers;
|
|
|
|
namespace SharpCompress.Common
|
|
{
|
|
public class EntryStream : Stream
|
|
{
|
|
private readonly IReader _reader;
|
|
private readonly Stream _stream;
|
|
private bool _completed;
|
|
private bool _isDisposed;
|
|
|
|
internal EntryStream(IReader reader, Stream stream)
|
|
{
|
|
_reader = reader;
|
|
_stream = stream;
|
|
}
|
|
|
|
/// <summary>
|
|
/// When reading a stream from OpenEntryStream, the stream must be completed so use this to finish reading the entire entry.
|
|
/// </summary>
|
|
public void SkipEntry()
|
|
{
|
|
this.Skip();
|
|
_completed = true;
|
|
}
|
|
|
|
protected override void Dispose(bool disposing)
|
|
{
|
|
if (!(_completed || _reader.Cancelled))
|
|
{
|
|
SkipEntry();
|
|
}
|
|
if (_isDisposed)
|
|
{
|
|
return;
|
|
}
|
|
_isDisposed = true;
|
|
base.Dispose(disposing);
|
|
_stream.Dispose();
|
|
}
|
|
|
|
public override bool CanRead => true;
|
|
|
|
public override bool CanSeek => false;
|
|
|
|
public override bool CanWrite => false;
|
|
|
|
public override void Flush() {
|
|
}
|
|
|
|
public override long Length => _stream.Length;
|
|
|
|
public override long Position { get => throw new NotSupportedException(); set => throw new NotSupportedException(); }
|
|
|
|
public override int Read(byte[] buffer, int offset, int count)
|
|
{
|
|
int read = _stream.Read(buffer, offset, count);
|
|
if (read <= 0)
|
|
{
|
|
_completed = true;
|
|
}
|
|
return read;
|
|
}
|
|
|
|
public override int ReadByte()
|
|
{
|
|
int value = _stream.ReadByte();
|
|
if (value == -1)
|
|
{
|
|
_completed = true;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
public override long Seek(long offset, SeekOrigin origin)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
|
|
public override void SetLength(long value)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
|
|
public override void Write(byte[] buffer, int offset, int count)
|
|
{
|
|
throw new NotSupportedException();
|
|
}
|
|
}
|
|
} |