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using System;
using Org.BouncyCastle.Utilities.IO;
namespace Org.BouncyCastle.Tls
{
public sealed class ByteQueueInputStream
: BaseInputStream
{
private readonly ByteQueue m_buffer;
public ByteQueueInputStream()
{
this.m_buffer = new ByteQueue();
}
public void AddBytes(byte[] buf)
{
m_buffer.AddData(buf, 0, buf.Length);
}
public void AddBytes(byte[] buf, int bufOff, int bufLen)
{
m_buffer.AddData(buf, bufOff, bufLen);
}
public int Peek(byte[] buf)
{
int bytesToRead = System.Math.Min(m_buffer.Available, buf.Length);
m_buffer.Read(buf, 0, bytesToRead, 0);
return bytesToRead;
}
public override int Read(byte[] buffer, int offset, int count)
{
Streams.ValidateBufferArguments(buffer, offset, count);
int bytesToRead = System.Math.Min(m_buffer.Available, count);
m_buffer.RemoveData(buffer, offset, bytesToRead, 0);
return bytesToRead;
}
public override int ReadByte()
{
if (m_buffer.Available == 0)
return -1;
return m_buffer.RemoveData(1, 0)[0];
}
public long Skip(long n)
{
int bytesToRemove = System.Math.Min((int)n, m_buffer.Available);
m_buffer.RemoveData(bytesToRemove);
return bytesToRemove;
}
public int Available
{
get { return m_buffer.Available; }
}
#if PORTABLE
//protected override void Dispose(bool disposing)
//{
// base.Dispose(disposing);
//}
#else
public override void Close()
{
}
#endif
}
}
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