void SendJoinPacket()
{
UdpClient udpclient = new UdpClient(ServerPort);
IPAddress multicastaddress = IPAddress.Parse(ServerIP);
udpclient.JoinMulticastGroup(multicastaddress);
IPEndPoint remoteep = new IPEndPoint(multicastaddress, ServerPort);
while (true)
{
if (lstSendBuf.Count == 0) Thread.Sleep(1);
else
{
byte[] Buffer = null;
lock (lstSendBuf)
{
Buffer = lstSendBuf[0];
lstSendBuf.RemoveAt(0);
}
int FullSize = Buffer.Length;
byte NumPacket = (byte)(FullSize / MaxSizeBuf);
if (FullSize % MaxSizeBuf != 0)
{
NumPacket++;
}
byte CurPacket = 0;
int SendSize = 0;
MainIndexFrame++;
while (FullSize != 0)
{
if (FullSize > MaxSizeBuf)
SendSize = MaxSizeBuf;
else SendSize = FullSize;
var up = new UDP_Packet
{
Data = new byte[SendSize],
Index = MainIndexFrame,
NumPacket = NumPacket,
CurPacket = (CurPacket++)
};
Array.Copy(Buffer, Buffer.Length - FullSize, up.Data, 0, SendSize);
byte[] bSend = up.ToByte();
SendNumBytes += bSend.Length;
BytesDataRateSend += bSend.Length;
NumSendPacket++;
// client_socket.BeginSendTo(bSend, 0, bSend.Length, SocketFlags.None,ipend, CallBackSend, client_socket);
// client_socket.SendTo(bSend, ipend);
udpclient.Send(bSend, bSend.Length, remoteep);
FullSize -= SendSize;
}
if ((DateTime.Now - dt_dateRate).TotalMilliseconds >= 1000)
{
dt_dateRate = DateTime.Now;
BytesInSec = BytesDataRateSend;
BytesDataRateSend = 0;
}
if (lstSendBuf.Count > 1000)
{
}
}
}
}
public static UDP_Packet FromByte(byte[] BufIn, long size)
{
if(BufIn==null) return null;
if(BufIn.Length<15) return null;
UDP_Packet up = new UDP_Packet();
bool bFlagPreambula = true;
if (BufIn[0] != 251 ||
BufIn[1] != 51 ||
BufIn[2] != 250 ||
BufIn[3] != 50)
bFlagPreambula = false;
int ind=4;
up.Index |= BufIn[ind++]; up.Index <<= 8;
up.Index |= BufIn[ind++]; up.Index <<= 8;
up.Index |= BufIn[ind++]; up.Index <<= 8;
up.Index |= BufIn[ind++];
up.CurPacket |= BufIn[ind++]; up.CurPacket <<= 8;
up.CurPacket |= BufIn[ind++];
up.NumPacket |= BufIn[ind++]; up.NumPacket <<= 8;
up.NumPacket |= BufIn[ind++];
up.Size |= BufIn[ind++]; up.Size <<= 8;
up.Size |= BufIn[ind++];
up.Data = new byte[up.Size];
Array.Copy(BufIn, ind, up.Data, 0, up.Size);
up.timeRec = DateTime.Now;
return up;
}
//*
private void SendBuf(byte[] Buffer)
{
if (Buffer == null) return;
// Creation Socket
Socket client_socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
// Conncet with the server
IPEndPoint ipend = new IPEndPoint(IPAddress.Parse(ServerIP), ServerPort);
// Send the Text
int FullSize = Buffer.Length;
byte NumPacket = (byte)(FullSize/MaxSizeBuf);
if(FullSize%MaxSizeBuf!=0)
{
NumPacket++;
}
byte CurPacket = 0;
int SendSize = 0;
MainIndexFrame++;
while (FullSize!=0)
{
if (FullSize > MaxSizeBuf)
SendSize = MaxSizeBuf;
else SendSize = FullSize;
var up = new UDP_Packet
{
Data = new byte[SendSize],
Index = MainIndexFrame,
NumPacket = NumPacket,
CurPacket = (CurPacket++)
};
Array.Copy(Buffer, Buffer.Length - FullSize, up.Data, 0, SendSize);
byte[] bSend = up.ToByte();
SendNumBytes += bSend.Length;
BytesDataRateSend += bSend.Length;
NumSendPacket++;
// client_socket.BeginSendTo(bSend, 0, bSend.Length, SocketFlags.None,ipend, CallBackSend, client_socket);
client_socket.SendTo(bSend, ipend);
FullSize -= SendSize;
}
// Conncetion Close
client_socket.Close();
if((DateTime.Now - dt_dateRate).TotalMilliseconds>=1000)
{
dt_dateRate = DateTime.Now;
BytesInSec = BytesDataRateSend;
BytesDataRateSend = 0;
}
}