/// <summary>
/// 外部接口:根据IP与端口获取一个TCP连接
/// </summary>
/// <param name="ip"></param>
/// <param name="port"></param>
/// <returns></returns>
public static TcpClientService GetService(string ip, int port)
{
TcpClientService ret = null;
string key = string.Format("{0}:{1}", ip, port);
//加锁确保只有一个线程操作服务集合
lock (_locker)
{
if (_dicServices.ContainsKey(key))
{
//客户端已存在
var list = _dicServices[key];
foreach (var tcp in list)
{
//取空闲
if (tcp.IsBusy == false)
{
if (tcp.IsConnected())
{
ret = tcp;
break;
}
}
}
//无空闲
if (ret == null)
{
var tcp = GetServiceSimple(ip, port);
if (tcp != null)
{
list.Add(tcp);
ret = tcp;
}
}
}
else
{
//首次请求
List <TcpClientService> list = new List <TcpClientService>();
var tcp = GetServiceSimple(ip, port);
if (tcp != null)
{
list.Add(tcp);
ret = tcp;
_dicServices.Add(key, list);
}
}
}
if (ret != null)
{
ret.IsBusy = true;
ret.LastUseTime = DateTime.Now;
}
return(ret);
}
private static TcpClientService GetServiceSimple(string ip, int port)
{
TcpClientService tcp = new TcpClientService(ip, port);
tcp.ConnectTimeout = 500;
if (tcp.ConnectWithTimeout())
{
return(tcp);
}
return(null);
}
public static bool IsOnline(string ip, int port)
{
bool result = false;
TcpClientService _tcp = new TcpClientService(ip, port);
_tcp.ConnectTimeout = 500;
if (_tcp.ConnectWithTimeout())
{
result = true;
}
_tcp.Close();
return(result);
}
public static TcpClientService GetService(string ip, int port)
{
if (_timerServiceMaintain == null)
{
_timerServiceMaintain = new Timer();
_timerServiceMaintain.Interval = 1000;
_timerServiceMaintain.Elapsed += _timerServiceMaintain_Elapsed;
_timerServiceMaintain.Enabled = true;
}
//为什么加锁，会对共享的_dicServicePool进行读写
lock (_lock)
{
IPEndPoint point = new IPEndPoint(IPAddress.Parse(IPFix(ip)), port);
TcpClientService service = null;
if (_dicServicePool.ContainsKey(point))
{
var services = _dicServicePool[point];
foreach (var e in services)
{
if (e.IsBusy == false)
{
service = e;
}
}
//未找到空闲
if (service == null)
{
service = new TcpClientService(IPFix(ip), port, _timeout);
service.Connect();
services.Add(service);
_dicServicePool[point] = services;
}
}
else
{
List <TcpClientService> services = new List <TcpClientService>();
service = new TcpClientService(IPFix(ip), port, _timeout);
service.Connect();
services.Add(service);
_dicServicePool[point] = services;
}
service.IsBusy = true;
service.LastUseTime = DateTime.Now;
return(service);
}
}
/// <summary>
/// TCP连接使用后设置为空闲状态
/// </summary>
/// <param name="tcp"></param>
/// <returns></returns>
public static bool FreeService(TcpClientService tcp)
{
bool retValue = false;
if (tcp != null)
{
var allServiceList = (from para in _dicServices
select para.Value).ToList();
List <TcpClientService> allService = new List <TcpClientService>();
foreach (var list in allServiceList)
{
allService.AddRange(list);
}
if (allService.Contains(tcp))
{
tcp.IsBusy = false;
retValue = true;
}
}
return(retValue);
}
public OEOCommService(TcpClientService client, int cardNum)
{
Client = client;
CardNumber = cardNum;
}
public OEOCommService(string ip, int port, int cardNum)
{
Client = new TcpClientService(ip, port);
Client.Connect();
CardNumber = cardNum;
}
public static void SetServiceFree(TcpClientService service)
{
service.IsBusy = false;
}
public NMUCommService(TcpClientService client)
{
Client = client;
}
public NMUCommService(string ip, int port)
{
Client = new TcpClientService(ip, port);
Client.Connect();
}