/// <summary>
/// 发送UDP广播给局域网内某一客户端表明自己在线
/// </summary>
/// <param name="ipAddress">要发送到的地址</param>
/// <param name="ping">之前收到的ping字符串</param>
protected void StartAckUDPBroadcast(IPAddress ipAddress, string ping)
{
string protocalText = protocalHandler.Pack("ackaddr");
protocalText = protocalHandler.Append(protocalText,
"tcpport", PortTCPListener.ToString());
protocalText = protocalHandler.Append(protocalText,
"udpport", PortUDPListener.ToString());
protocalText = protocalHandler.Append(protocalText,
"ping", ping);
startUDPSend(protocalText, ipAddress);
}
/// <summary>
/// 发送UDP广播给局域网内客户端表明自己刚上线或刷新在线好友
/// </summary>
/// <param name="ipAddress">要发送到的地址</param>
protected void StartLoginUDPBroadcast(IPAddress ipAddress = null)
{
string protocalText = protocalHandler.Pack("update");
protocalText = protocalHandler.Append(protocalText,
"tcpport", PortTCPListener.ToString());
protocalText = protocalHandler.Append(protocalText,
"udpport", PortUDPListener.ToString());
Random rnd = new Random((int)DateTime.Now.Ticks);
pingString = rnd.Next(0x7FFF).ToString();
protocalText = protocalHandler.Append(protocalText,
"ping", pingString);
pingMillis = DateTime.Now.Millisecond;
if (ipAddress != null)
{
startUDPSend(protocalText, ipAddress);
}
else
{
startUDPSend(protocalText);
}
}