protected virtual void OnClientDisconnected(TCPClientThread client, string reason)
{
if (ClientDisconnected != null)
{
ClientDisconnected(client, reason);
}
}
/// <summary>
/// 监听线程
/// </summary>
private void TCPListenerHandler()
{
while (true)
{
try
{
Socket clientSocket = _socket.Accept();
IPEndPoint ep = (IPEndPoint)clientSocket.RemoteEndPoint;
log.Info("已接收到客户端 " + ep.Address.ToString() + " 连接请求，正在分派客户端处理线程");
TCPClientThread client = new TCPClientThread(clientSocket);
client.IPAddress = ep.Address.ToString();
_clients.Add(client);
client.ClientDisconnected += Client_ClientDisconnected;
client.OPCItemUpdated += Client_OPCItemUpdated;
client.Start();
}
catch (Exception ex) { log.Error(ex.Message); }
}
}
protected virtual void OnOPCItemUpdated(string blockName, string newValue, string type, TCPClientThread client)
{
if (OPCItemUpdated != null)
{
OPCItemUpdated(blockName, newValue, type, client);
}
}
/// <summary>
/// 接收客户端处理线程返回的断开事件并清理客户端连接列表
/// </summary>
/// <param name="client">断开的客户端</param>
/// <param name="reason">断开的原因</param>
private void Client_ClientDisconnected(TCPClientThread client, string reason)
{
log.Info("检测到客户端 " + client.IPAddress + " 已断开连接，正在清理处理线程 断线原因：" + reason);
client.Terminate();
_clients.Remove(client);
}
/// <summary>
/// 接收客户端处理线程返回的OPCITEM更新请求并转发给主程序
/// </summary>
/// <param name="blockName">要更新的地址块</param>
/// <param name="newValue">更新的值</param>
private void Client_OPCItemUpdated(string blockName, string newValue, string type, TCPClientThread client)
{
log.Debug("接收到客户端 " + client.IPAddress + " 处理线程返回的OPCITEM更新事件，正在向主程序转发");
OnOPCItemUpdated(blockName, newValue, type);
}
