/// <summary>
/// 非空虚函数;
/// 发送报文信息；
/// 发送给特定的endpoint对象，可不局限于一个服务器点；
/// </summary>
/// <param name="netMsg">消息体</param>
/// <param name="endPoint">远程对象</param>
public virtual async void SendMessage(INetworkMessage netMsg, IPEndPoint endPoint)
{
if (!Available)
{
return;
}
UdpNetworkMessage udpNetMsg = netMsg as UdpNetworkMessage;
udpNetMsg.Conv = Conv;
Utility.Debug.LogInfo($"发送网络消息 : Conv : {udpNetMsg.Conv} ; Cmd {udpNetMsg.Cmd} ; OperationCode:{udpNetMsg.OperationCode}");
if (udpSocket != null)
{
try
{
var buffer = udpNetMsg.GetBuffer();
int length = await udpSocket.SendAsync(buffer, buffer.Length, endPoint);
if (length != buffer.Length)
{
//消息未完全发送，则重新发送
SendMessage(udpNetMsg, endPoint);
}
}
catch (Exception e)
{
Utility.Debug.LogError($"发送异常:{e.Message}");
}
}
}
/// <summary>
/// 对网络消息进行编码
/// </summary>
/// <param name="netMsg">生成的消息</param>
/// <returns>是否编码成功</returns>
public bool EncodeMessage(ref UdpNetworkMessage netMsg)
{
netMsg.TS = Utility.Time.MillisecondTimeStamp();
SendSN += 1;
netMsg.SN = SendSN;
netMsg.Conv = Conv;
netMsg.EncodeMessage();
bool result = true;
if (Conv != 0)
{
//若会话ID不为0，则缓存入ACK容器中，等接收成功后进行移除
/* result =*/
//ackMsgDict.TryAdd(netMsg.SN, netMsg);
try
{
if (netMsg.Cmd == KcpProtocol.MSG)
{
ackMsgDict.TryAdd(netMsg.SN, netMsg);
}
}
catch (Exception e)
{
Utility.Debug.LogError(e);
}
}
return(result);
}
/// <summary>
/// 处理报文序号
/// </summary>
/// <param name="netMsg">网络消息</param>
protected void HandleMsgSN(UdpNetworkMessage netMsg)
{
//sn小于当前处理HandleSN则表示已经处理过的消息；
if (netMsg.SN <= HandleSN)
{
return;
}
if (netMsg.SN - HandleSN > 1)
{
//对错序报文进行缓存
ackMsgDict.TryAdd(netMsg.SN, netMsg);
}
HandleSN = netMsg.SN;
//将消息分发到各个监听网络事件的模块中
NetworkEventCore.Instance.Dispatch(netMsg.OperationCode, netMsg);
if (Conv != netMsg.Conv)
{
Conv = netMsg.Conv;
}
UdpNetworkMessage nxtNetMsg;
if (ackMsgDict.TryRemove(HandleSN + 1, out nxtNetMsg))
{
HandleMsgSN(nxtNetMsg);
}
}
void SendClick()
{
string str = inputMsg.text;
var data = Utility.Encode.ConvertToByte(str);
UdpNetworkMessage msg = new UdpNetworkMessage(0, 0, KcpProtocol.MSG, 0, data);
Facade.SendNetworkMessage(msg);
}
/// <summary>
/// 处理进入这个peer的消息；
/// 由service分发消息到这个方法；
/// </summary>
/// <param name="msg">消息体</param>
public virtual void MessageHandler(INetworkMessage msg)
{
UdpNetworkMessage netMsg = msg as UdpNetworkMessage;
switch (netMsg.Cmd)
{
//ACK报文
case KcpProtocol.ACK:
{
if (netMsg.OperationCode == NetworkOpCode._Heartbeat)
{
Heartbeat.OnRenewal();
}
UdpNetworkMessage tmpMsg;
if (ackMsgDict.TryRemove(netMsg.SN, out tmpMsg))
{
Utility.Debug.LogInfo($" Conv :{Conv}，接收到ACK消息 ");
}
else
{
if (netMsg.Conv != 0)
{
Utility.Debug.LogError($"接收网络ACK消息异常；SN : {netMsg.SN} ");
}
}
}
break;
case KcpProtocol.MSG:
{
Utility.Debug.LogInfo($"Conv : {Conv} ,接收到MSG消息");
//生成一个ACK报文，并返回发送
var ack = UdpNetworkMessage.ConvertToACK(netMsg);
//这里需要发送ACK报文
sendMessageHandler?.Invoke(ack);
//发送后进行原始报文数据的处理
HandleMsgSN(netMsg);
Utility.Debug.LogInfo($"发送ACK报文，conv :{Conv} ; {PeerEndPoint.Address} ;{PeerEndPoint.Port}");
//if (netMsg.OperationCode == NetworkOpCode._Heartbeat)
// Heartbeat.OnRenewal();
//else
NetworkEventCore.Instance.Dispatch(netMsg.OperationCode, netMsg);
}
Utility.Debug.LogInfo($"当前消息缓存数量为:{ackMsgDict.Count} ; Peer conv : {Conv}");
break;
case KcpProtocol.SYN:
{
//建立连接标志
Utility.Debug.LogInfo($"Conv : {Conv} ,接收到SYN消息");
//生成一个ACK报文，并返回发送
var ack = UdpNetworkMessage.ConvertToACK(netMsg);
//这里需要发送ACK报文
sendMessageHandler?.Invoke(ack);
}
break;
case KcpProtocol.FIN:
{
//结束建立连接Cmd，这里需要谨慎考虑；
Utility.Debug.LogWarning($"Conv : {Conv} ,接收到FIN消息");
OnDeactive();
Facade.NetworkDisconnect();
//TODO KcpProtocol.FIN 内部耦合
Facade.NetworkDisconnect();
}
break;
}
Facade.DespawnReference(netMsg);
}
