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using System;
using System.Buffers.Binary;
using Impostor.Hazel;
namespace Impostor.Benchmarks.Data.Span
{
public ref struct MessageReader_Span
{
private readonly MessageReaderOwner _owner;
private readonly byte _tag;
private readonly Span<byte> _data;
public MessageReader_Span(MessageReaderOwner owner, byte tag, Span<byte> data)
{
_owner = owner;
_tag = tag;
_data = data;
}
public MessageReader_Span ReadMessage()
{
var length = ReadUInt16();
var tag = ReadByte();
var pos = _owner.Position;
_owner.Position += length;
return new MessageReader_Span(_owner, tag, _data.Slice(3, length));
}
public byte ReadByte()
{
return _data[_owner.Position++];
}
public ushort ReadUInt16()
{
var output = BinaryPrimitives.ReadUInt16LittleEndian(_data.Slice(_owner.Position));
_owner.Position += sizeof(ushort);
return output;
}
public int ReadInt32()
{
var output = BinaryPrimitives.ReadInt32LittleEndian(_data.Slice(_owner.Position));
_owner.Position += sizeof(int);
return output;
}
}
}
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