public static LevelDbOperation Deserialize(ref System.IO.BinaryReader stream)
{
LevelDbOperation levelDbOperation = new LevelDbOperation();
//tableid
levelDbOperation.tableid = (byte)stream.ReadByte();
//key
var isnull = stream.ReadByte();
if (isnull != 1)
{
levelDbOperation.key = null;
}
else
{
byte[] bytes_keyL = new byte[4];
stream.Read(bytes_keyL, 0, 4);
var keyL = BitConverter.ToInt32(bytes_keyL, 0);
byte[] bytes_key = new byte[keyL];
stream.Read(bytes_key, 0, keyL);
levelDbOperation.key = bytes_key;
}
//value
isnull = stream.ReadByte();
if (isnull != 1)
{
levelDbOperation.value = null;
}
else
{
byte[] bytes_valueL = new byte[4];
stream.Read(bytes_valueL, 0, 4);
var valueL = BitConverter.ToInt32(bytes_valueL, 0);
byte[] bytes_value = new byte[valueL];
stream.Read(bytes_value, 0, valueL);
levelDbOperation.value = bytes_value;
}
//state
levelDbOperation.state = (byte)stream.ReadByte();
////height
//byte[] bytes_height = new byte[4];
//stream.Read(bytes_height,0,4);
//levelDbOperation.height = (ulong)BitConverter.ToInt32(bytes_height,0);
return(levelDbOperation);
}
public static byte[] Serialize(LevelDbOperation levelDbOperation)
{
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
// xie tableid
ms.WriteByte(levelDbOperation.tableid);
// 写 key
if (levelDbOperation.key != null)
{
ms.WriteByte(1);
byte[] bytes_key = levelDbOperation.key;
byte[] bytes_keyL = BitConverter.GetBytes(bytes_key.Length);
ms.Write(bytes_keyL, 0, 4);
ms.Write(bytes_key, 0, bytes_key.Length);
}
else
{
ms.WriteByte(0);
}
//写 value
if (levelDbOperation.value != null)
{
ms.WriteByte(1);
byte[] bytes_value = levelDbOperation.value;
byte[] bytes_valueL = BitConverter.GetBytes(bytes_value.Length);
ms.Write(bytes_valueL, 0, 4);
ms.Write(bytes_value, 0, bytes_value.Length);
}
else
{
ms.WriteByte(0);
}
//state
ms.WriteByte(levelDbOperation.state);
////写blockheight
//byte[] bytes_height = BitConverter.GetBytes(levelDbOperation.height);
//ms.Write(bytes_height,0,4);
return(ms.ToArray());
}
}
