/// <summary>
/// 链接远端
/// </summary>
/// <param name="remoteHostname"> 远端地址</param>
/// <param name="remotePort">远端端口</param>
public void Connect(string remoteHostname, int remotePort)
{
//建立KCP,并绑定回调
channel = new KChannel(conv, client, remoteHostname, remotePort)
{
OnRecive = OnReciveCallBack
};
channel.OnConnectState = OnConnectState;
}
/// <summary>
/// 接收消息线程
/// </summary>
private void OnRecive(IAsyncResult ar)
{
try
{
remoteEndPoint = null;
byte[] buf = client.EndReceive(ar, ref remoteEndPoint);
//如果缓冲区为null 或 长度少于等于0，则断线
if (buf == null || buf.Length <= 0)
{
Dispose();
Debug.LogError("kcp buff is None");
return;
}
//获取会话conv
UInt32 conv = 0;
KCP.ikcp_decode32u(buf, 0, ref conv);
//查找信道池,没有则建立新的
KChannel channel;
if (!channels.TryGetValue(conv, out channel))
{
channel = new KChannel(conv, client, remoteEndPoint)
{
OnRecive = OnRecive
};
channel.OnConnectState = OnConnectState;
channels.Add(conv, channel);
}
channel.Input(buf);
//再次调用异步接收
client.BeginReceive(OnRecive, null);
}
catch (Exception)
{
//TODO 触发此处异常，一般由于客户端主动关闭致使S端无法返回数据包到C端。
//TODO 服务器在此类异常中不需要关闭，只需要处理掉断开连接的C端
}
}