/// <summary>
/// 初始化服务器端长连接，激活心跳
/// </summary>
internal void NewInstance(IDictionary <string, Address> address, NetTcpBinding binding)
{
if (isNewInstance)
{
return;
}
if (urilist == null)
{
lock (lockurilist)
{
if (urilist == null)
{
this.addresslist = address;
IList <string> urilist_temp = new List <string>();
thlist = new List <Thread>();
thobjlist = new List <ThreadObj>();
//创建心跳连接并初始化正在负载的服务器列表
ChannelFactory <IHeatBeat> channelFactory = new ChannelFactory <IHeatBeat>(binding);
foreach (string uri in this.addresslist.Keys)
{
#region for
EndpointAddress point = new EndpointAddress("net.tcp://" + uri + "/Eltc.Base/FrameWork/Helper/Wcf/LoadBalance/IHeatBeat");
IHeatBeat proxy = null;
try
{
proxy = channelFactory.CreateChannel(point);
(proxy as ICommunicationObject).Open();
//增加到服务器列表
urilist_temp.Add(uri);
}
catch { }
Thread th = new Thread(new ParameterizedThreadStart(ThreadRun));
ThreadObj thobj = new ThreadObj();
thobj.channelFactory = channelFactory;
thobj.point = point;
thobj.proxy = proxy;
thobj.uri = uri;
thobj.heatBeatTime = address[uri].HeatBeatTime;
this.thobjlist.Add(thobj);
this.thlist.Add(th);
#endregion
}
Init(urilist_temp);
this.urilist = urilist_temp;
}
}
}
for (int i = 0; i < thlist.Count; i++)
{
if (thlist[i].ThreadState == ThreadState.Unstarted)
{
lock (thlock)
{
if (thlist[i].ThreadState == ThreadState.Unstarted)
{
thlist[i].Start(thobjlist[i]);
}
}
}
}
isNewInstance = true;
}
private void ThreadRun(object parms)
{
ThreadObj obj = (ThreadObj)parms;
IHeatBeat proxy = obj.proxy;
string uri = obj.uri;
TimeSpan heatBeatTime = obj.heatBeatTime;
EndpointAddress point = obj.point;
ChannelFactory <IHeatBeat> channelFactory = obj.channelFactory;
#region 线程处理
while (true)
{
if ((proxy as ICommunicationObject).State != CommunicationState.Opened)
{
//删除失效的节点
Kill(uri);
try
{
(proxy as ICommunicationObject).Close();
}
catch
{
(proxy as ICommunicationObject).Abort();
}
#region 尝试3次连接，如果连接不上认为服务器挂掉
int i = 1;
while (i < 4)
{
try
{
proxy = channelFactory.CreateChannel(point);
(proxy as ICommunicationObject).Open();
#region 增加到服务器列表
if (!this.urilist.Contains(uri))
{
lock (this.lockurilist)
{
if (!this.urilist.Contains(uri))
{
this.urilist.Add(uri);
//初始化一下负载算法
Init(this.urilist);
}
}
}
#endregion
break;
}
catch
{
try
{
(proxy as ICommunicationObject).Close();
}
catch
{
(proxy as ICommunicationObject).Abort();
}
}
i++;
}
#endregion
#region 除出服务器列表
if (i > 3)
{
Kill(uri);
//30秒后再重试
Thread.Sleep(TimeSpan.Parse("00:00:30"));
continue;
}
#endregion
}
#region 维持心跳
if ((proxy as ICommunicationObject).State == CommunicationState.Opened)
{
//维持心跳
while (true)
{
try
{
proxy.CallBack(true);
//心跳扫描时间间隔
Thread.Sleep(heatBeatTime);
}
catch
{
break;
}
}
}
#endregion
}
#endregion
}
