/// <summary>
/// 连接客户端
/// </summary>
/// <param name="ar"></param>
private void HandleTcpClientAccepted(IAsyncResult ar)
{
try
{
if (IsRunning)
{
TcpListener tcpListener = (TcpListener)ar.AsyncState;
TcpClient tcpClient = tcpListener.EndAcceptTcpClient(ar);
byte[] buffer = new byte[4096];
RfClientTcp client = new RfClientTcp(tcpClient, buffer);
DoAddClient(client);
NetworkStream networkStream = client.NetworkStream;
networkStream.BeginRead(client.Buffer, 0, client.Buffer.Length, HandleDatagramReceived, client);
tcpListener.BeginAcceptTcpClient(new AsyncCallback(HandleTcpClientAccepted), ar.AsyncState);
}
}
catch (Exception e)
{
_mLog.Error(true, e.Message, e);
}
}
private void DoAddClient(RfClientTcp client)
{
lock (clients)
{
clients.Add(client);
SendMsg(RfConnectE.客户端连接, client.IP_PORT, client.MEID, null);
_mLog.Status(true, "客户端连接：" + client.MEID);
}
}
/// <summary>
/// 移除断开的客户端
/// </summary>
/// <param name="client"></param>
internal void DoRemoveClient(RfClientTcp client)
{
if (client == null)
{
return;
}
lock (clients)
{
client.Close();
clients.Remove(client);
SendMsg(RfConnectE.客户端断开, client.IP_PORT, client.MEID, null);
_mLog.Status(true, "客户端断开：" + client.MEID);
}
}
internal override void NoticeDataReceive(byte[] data, RfClientTcp client)
{
try
{
string dstr = Encoding.UTF8.GetString(data);
RfPackage package = JsonTool.Deserialize <RfPackage>(dstr);
if (!client.IsUpdateMEID)
{
client.SetMEID(package.Meid);
}
package.ClientId = client.MEID;
SendMsg(RfConnectE.客户端接收信息, client.IP_PORT, client.MEID, package);
_mLog.Status(true, string.Format("[Send]-Client:{0}\n" + "Msg:{1}", client.MEID, dstr));
}catch (Exception e)
{
_mLog.Error(true, e.StackTrace);
}
}
/// <summary>
/// 发送报文至指定的客户端
/// </summary>
/// <param name="tcpClient">客户端</param>
/// <param name="datagram">报文</param>
private void Send(RfClientTcp tcpClient, byte[] datagram)
{
try
{
if (!IsRunning)
{
throw new InvalidProgramException("This TCP server has not been started.");
}
if (tcpClient == null)
{
throw new ArgumentNullException("tcpClient");
}
if (tcpClient.TcpClient == null)
{
throw new ArgumentNullException("tcpClient.TcpClient");
}
if (datagram == null)
{
throw new ArgumentNullException("datagram");
}
if (tcpClient.TcpClient.Connected)
{
tcpClient.TcpClient.GetStream().BeginWrite(
datagram, 0, datagram.Length, HandleDatagramWritten, tcpClient);
}
else
{
//信息不准确，重新连接
DoRemoveClient(tcpClient);
}
}
catch (Exception e)
{
_mLog.Error(true, e.Message, e);
//信息不准确，重新连接
DoRemoveClient(tcpClient);
}
}
internal abstract void NoticeDataReceive(byte[] data, RfClientTcp client);
/// <summary>
/// 处理接收数据
/// </summary>
/// <param name="ar"></param>
private void HandleDatagramReceived(IAsyncResult ar)
{
try
{
if (IsRunning)
{
RfClientTcp client = (RfClientTcp)ar.AsyncState;
NetworkStream networkStream = client.NetworkStream;
int numberOfReadBytes = 0;
try
{
numberOfReadBytes = networkStream.EndRead(ar);
}
catch
{
numberOfReadBytes = 0;
}
if (numberOfReadBytes == 0)
{
// connection has been closed
DoRemoveClient(client);
return;
}
// received byte and trigger event notification
byte[] readData = new byte[numberOfReadBytes];
Buffer.BlockCopy(client.Buffer, 0, readData, 0, numberOfReadBytes);
uint headerKey = BitConverter.ToUInt16(ShiftBytes(readData, 0, 2), 0);
if (headerKey != P_HEAD) //43707
{
//信息不准确，重新连接
DoRemoveClient(client);
return;
}
if (readData.Length > 8)
{
uint messageSize = BitConverter.ToUInt32(ShiftBytes(readData, 2, 4), 0);
if (readData.Count() >= messageSize)
{
//2 + 4 + msgsize + 2
int tailKeyIndex = (int)messageSize - 2;
uint tailKey = BitConverter.ToUInt16(ShiftBytes(readData, tailKeyIndex, 2), 0);
if (tailKey == P_TAIL)//52445
{
byte[] data = new byte[messageSize - 8];
Array.Copy(readData, 6, data, 0, messageSize - 8);
NoticeDataReceive(data, client);
int skiplen = tailKeyIndex + 4;
// remove from data array
readData = readData.Skip(skiplen).ToArray();
}
else
{
//信息不准确，重新连接
DoRemoveClient(client);
return;
}
}
}
try
{
if (readData.Any())
{
client.AddLeft(readData);
networkStream.BeginRead(client.Buffer, readData.Length, client.Buffer.Length - readData.Length, HandleDatagramReceived, client);
}
else
{
networkStream.BeginRead(client.Buffer, 0, client.Buffer.Length, HandleDatagramReceived, client);
}
}
catch (Exception e)
{
_mLog.Error(true, e.Message, e);
//信息不准确，重新连接
DoRemoveClient(client);
return;
}
}
}
catch (Exception e)
{
_mLog.Error(true, e.Message, e);
}
}
