// 外界只能使用靜態方法取得實例
public static SocketClient GetInstance(string _MeetingID, string _UserID, string _UserName, bool InitToSync)
{
bool SyncServerIsIP = false;
IPAddress ip = default(IPAddress);
IPAddress.TryParse(new Uri(WsTool.GetSyncServer_URL()).DnsSafeHost, out ip);
if (IPAddress.Equals(default(IPAddress), ip) == false)
{
SyncServerIsIP = true;
}
if (SyncServerIsIP == false && NetworkTool.GetDomainNameIP(WsTool.GetSyncServer_URL(), 1000).Equals("") == true && NetworkTool.GetDomainNameIP(WsTool.GetSyncServerImp_URL(), 1000).Equals("") == true)
{
return(null);
}
// 先判斷目前有沒有實例，沒有的話才開始 lock，
// 此次的判斷，是避免在有實例的情況，也執行 lock ，影響效能
if (instance == null)
{
// 避免多執行緒可能會產生兩個以上的實例，所以 lock
lock (thisLock)
{
// lock 後，再判斷一次目前有無實例
// 此次的判斷，是避免多執行緒，同時通過前一次的 null == instance 判斷
if (instance == null)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else
{
if (MeetingID.Equals(_MeetingID) == false)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else
{
int i = 1;
while (i <= 10)
{
bool IsConnected = instance.GetIsConnected();
if (instance != null && IsConnected == true)
{
break;
}
else if (i == 10)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
Thread.Sleep(10);
i++;
}
}
}
}
}
else
{
lock (thisLock)
{
// lock 後，再判斷一次目前有無實例
// 此次的判斷，是避免多執行緒，同時通過前一次的 null == instance 判斷
if (instance == null)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else
{
if (MeetingID.Equals(_MeetingID) == false)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else
{
//if (instance.GetIsConnected() == false)
// Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
int i = 1;
while (i <= 10)
{
bool IsConnected = instance.GetIsConnected();
if (instance != null && IsConnected == true)
{
break;
}
else if (i == 10)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
Thread.Sleep(10);
i++;
}
}
}
}
}
//Thread.Sleep(100);
return(instance);
}
public static SocketClient GetInstance(string _MeetingID, string _UserID, string _UserName, bool InitToSync)
{
if (NetworkTool.GetDomainNameIP(WsTool.GetSyncServer_URL(), 1000).Equals("") && NetworkTool.GetDomainNameIP(WsTool.GetSyncServerImp_URL(), 1000).Equals(""))
{
return(null);
}
if (instance != null)
{
lock (thisLock)
{
if (instance == null)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else if (!MeetingID.Equals(_MeetingID))
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else
{
for (int i = 1; i <= 10; i++)
{
bool isConnected = instance.GetIsConnected();
if (instance != null && isConnected)
{
break;
}
if (i == 10)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
Thread.Sleep(10);
}
}
}
}
else
{
lock (thisLock)
{
if (instance == null)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else if (!MeetingID.Equals(_MeetingID))
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
else
{
for (int j = 1; j <= 10; j++)
{
bool isConnected2 = instance.GetIsConnected();
if (instance != null && isConnected2)
{
break;
}
if (j == 10)
{
Init_Instance(_MeetingID, _UserID, _UserName, InitToSync);
}
Thread.Sleep(10);
}
}
}
}
return(instance);
}
