public static UDPPackage Pack(byte[] data)
{
int num = data.Length / Size + data.Length % Size;
int sessionid = 0;
int index = 0;
byte[] bytesNum = BitConverter.GetBytes(num);
byte[] bytesSession = BitConverter.GetBytes(sessionid);
SessionPackage[] tmp = new SessionPackage[num];
for (int i = 0; i < num; i++)
{
SessionPackage tp = null;
if (index + Size > data.Length)
{
tp = new SessionPackage()
{
Data = new byte[Size + 12], SeqId = i,
};
}
else
{
tp = new SessionPackage()
{
Data = new byte[data.Length - index + 12], SeqId = i
};
}
Array.Copy(bytesNum, 0, tp.Data, 0, 4);
Array.Copy(bytesSession, 0, tp.Data, 4, 4);
Array.Copy(BitConverter.GetBytes(i), 0, tp.Data, 8, 4);
Array.Copy(data, index, tp.Data, 12, tp.Data.Length);
index += Size;
tmp[i] = tp;
}
UDPPackage uDP = new UDPPackage();
uDP.AddData(tmp);
return(uDP);
}
public static SessionPackage UnPack(byte[] data, int len = 0)
{
MemoryStream memory = new MemoryStream(data);
if (len == 0)
{
len = data.Length - 12;
}
byte[] bytesId = new byte[4];
SessionPackage package = new SessionPackage();
memory.Read(bytesId, 0, 4);
package.PackNum = BitConverter.ToInt32(bytesId, 0);
memory.Read(bytesId, 0, 4);
package.SessionId = BitConverter.ToInt32(bytesId, 0);
memory.Read(bytesId, 0, 4);
package.SeqId = BitConverter.ToInt32(bytesId, 0);
//
memory.Read(package.Data = new byte[len], 0, len);
memory.Close();
return(package);
}