/// <summary>
/// 接收数据回调函数
/// </summary>
/// <param name="ar"></param>
private void ReceiveCallback(IAsyncResult ar)
{
try
{
SocketError error;
UserTokenObject userToken = (UserTokenObject)ar.AsyncState;
int bytesRead = _serverSocket.EndReceive(ar, out error);
if (bytesRead > 0 && error == SocketError.Success)
{
Interlocked.Add(ref _receivedBytesCount, bytesRead);
DataReceivedEventArgs e = new DataReceivedEventArgs();
e.UserToken = userToken;
e.RealDataSize = bytesRead;
e.Data = new byte[bytesRead];
Array.Copy(userToken.Buffer, 0, e.Data, 0, bytesRead);
DataReceived(this, e);
Receive(userToken);
}
else
{
CloseSocket();
Console.WriteLine("ReceiveCallback: " + error.ToString());
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
public TcpConnection(Socket socket)
{
_isConnected = true;
_client = socket;
AssociatedID = _client.RemoteEndPoint.ToString().GetHashCode();
UserTokenObject userToken = new UserTokenObject();
userToken.AssociatedID = _client.RemoteEndPoint.ToString();
userToken.WorkSocket = _client;
Receive(userToken);
}
/// <summary>
/// 接收数据
/// </summary>
/// <remarks>读取从中心平台系统转发过来的数据</remarks>
private void Receive(UserTokenObject userToken)
{
try
{
SocketError error;
_serverSocket.BeginReceive(userToken.Buffer, 0, UserTokenObject.BufferSize, SocketFlags.None, out error, new AsyncCallback(ReceiveCallback), userToken);
if (error != SocketError.Success)
{
CloseSocket();
Console.WriteLine("Receive: " + error.ToString());
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
/// <summary>
/// 连接回调函数
/// </summary>
/// <param name="ar"></param>
private void ConnectCallback(IAsyncResult ar)
{
try
{
Socket socket = (Socket)ar.AsyncState;
socket.EndConnect(ar);
//发送认证内容到GpsServer程序
OnConnected(this, null);
UserTokenObject userToken = new UserTokenObject();
userToken.AssociatedID = socket.RemoteEndPoint.ToString();
userToken.WorkSocket = socket;
Receive(userToken);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}