/// <summary>
/// 通过ip发送信息给客户端
/// </summary>
/// <param name="ip"></param>
/// <param name="msg"></param>
public bool SendMsgToClientForIP(string ip, string msg)
{
lockSlim.EnterReadLock();
bool isok = true;
try
{
if (dictsocket.ContainsKey(ip.Trim()))
{
ClientMode clientMode = dictsocket[ip.Trim()];
if (SocketTools.IsSocketConnected(clientMode.socket))
{
clientMode.socket.Send(SocketTools.GetBytes(msg, IsOpenDesEnc));
isok = true;
}
else
{
clientMode.socket.Close();
OnDebug?.Invoke($"The client with ip {clientMode.ip} has logged out and can't send a message.");
isok = false;
}
}
}
catch (Exception ex)
{
OnError?.Invoke($"Error when sending to the client：{ex.ToString()}");
isok = false;
}
finally
{
lockSlim.ExitReadLock();
}
return(isok);
}
/// <summary>
/// 接收信息
/// </summary>
/// <param name="socket"></param>
private void RecMsg(object socket)
{
int headSize = 4;
byte[] surplusBuffer = null;
System.Net.Sockets.Socket sokClient = socket as System.Net.Sockets.Socket;
string socketip = sokClient.RemoteEndPoint.ToString();
while (true)
{
int count = -1;
try
{
byte[] vs = new byte[1024];
count = sokClient.Receive(vs); // 接收数据，并返回数据的长度；
int bytesRead = vs.Length;
if (bytesRead > 0)
{
if (surplusBuffer == null)
{
surplusBuffer = vs;
}
else
{
surplusBuffer = surplusBuffer.Concat(vs).ToArray();
}
int haveRead = 0;
int totalLen = surplusBuffer.Length;
while (haveRead <= totalLen)
{
if (totalLen - haveRead < headSize)
{
//Console.WriteLine("不够一个包~");
byte[] byteSub = new byte[totalLen - haveRead];
Buffer.BlockCopy(surplusBuffer, haveRead, byteSub, 0, totalLen - haveRead);
surplusBuffer = byteSub;
totalLen = 0;
break;
}
//如果是够一个完整包了，帽读取包头的数据
byte[] headByte = new byte[headSize];
Buffer.BlockCopy(surplusBuffer, haveRead, headByte, 0, headSize);
int bodySize = BitConverter.ToInt32(headByte, 0); //得到长度
if (bodySize == 0)
{
surplusBuffer = null;
totalLen = 0;
break;
}
//这里的 haveRead=等于N个数据包的长度 从0开始；0,1,2,3....N
//如果自定义缓冲区拆解N个包后的长度 大于 总长度，说最后一段数据不够一个完整的包了，拆出来保存
if (haveRead + headSize + bodySize > totalLen)
{
byte[] byteSub = new byte[totalLen - haveRead];
Buffer.BlockCopy(surplusBuffer, haveRead, byteSub, 0, totalLen - haveRead);
surplusBuffer = byteSub;
// Console.WriteLine("不够一个包，拆出来保存");
break;
}
else
{
string strc = Encoding.UTF8.GetString(surplusBuffer, haveRead + headSize, bodySize).StringDecrypt(IsOpenDesEnc);
string[] ss = strc.Split(',');
//心跳事件，更新客户端的最后登陆时间
if (ss.Count() == 2 && ss[0].ToString().Equals("hear"))
{
// 心跳事件 0=hert,1=ip
lockSlim.EnterWriteLock();
try
{
ClientMode socketClient;
if (dictsocket.TryGetValue(ss[1].ToString(), out socketClient))
{
OnDebug?.Invoke($"Update timestamp：{SocketTools.GetTimeStamp()} - ss[1].ToString()");
socketClient.lastTickTime = SocketTools.GetTimeStamp();
}
}
catch (Exception ex)
{
OnError?.Invoke($"Heartbeat error: {ex.ToString()}");
}
finally
{
lockSlim.ExitWriteLock();
}
}
else
{
// OnRecMessage?.Invoke(socketip, strc);
OnRecMessage?.Invoke(this, new SocketMsgArgs(new ClientRecInfo()
{
ip = socketip, msg = strc
}));
}
haveRead = haveRead + headSize + bodySize;
if (headSize + bodySize == bytesRead)
{
surplusBuffer = null;
totalLen = 0;
}
}
}
}
}
catch (Exception ex)
{
ReMoveSocketClient(socketip);
//OnError?.Invoke($"Client thread error:{socketip} " );
break;
}
}
}
