/// <summary>
/// returns TRUE for device having a valid IP
/// </summary>
/// <returns>boolean</returns>
public static bool _getConnected()
{
if (_myConfig._checkConnectIP)
{
string hostname = Dns.GetHostName(); //local host name
IPHostEntry _hostEntry = Dns.GetHostEntry(hostname);
bool bLocalsOnly = true;
foreach (IPAddress a in _hostEntry.AddressList)
{
System.Diagnostics.Debug.WriteLine(a.ToString()); // 169.254.2.1, 127.0.0.1
if (a.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
#if DEBUG
if (a.ToString() != "127.0.0.1")
#else
if (a.ToString() != "169.254.2.1" && a.ToString() != "127.0.0.1")
#endif
{
bLocalsOnly = false;
_currentIP = a;
}
}
}
if (bLocalsOnly)
{
return(false);
}
else
{
return(true);
}
}
else
{
string ssid = _wifi.getCurrentProfile().sSSID;
if (wifi.isAssociated(ssid))
{
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
/// this function tries to switch to the preferred network
/// and falls back to second profile if 1st did not connect
/// </summary>
void doSwitch()
{
if (bInsideSwitch)
{
Logger.WriteLine("doSwitch called although already insideSwitch");
return;
}
lock (syncObject)
bInsideSwitch = true;
OnConnectedMessage("DoSwitch() start...");
Logger.WriteLine("DoSwitch() start...");
int iConnectTry = 0;
//is first profile active?
//USES instance or regKey name!
string currentProfile = _wifi.getCurrentProfile().sProfileRegKey;
string desiredSSID = _wifi.getCurrentProfile().sSSID;
OnConnectedMessage("current profile=" + currentProfile);
//is the preferred profile active?
if (currentProfile == _profiles[0])
{
OnConnectedMessage("Current Profile = First profile");
if (network._getConnected() == false)
{ //not connected
OnConnectedMessage("network not connected. Switching to 2nd profile...");
_wifi.setProfile(_profiles[1]);
}
else
{
OnConnectedMessage("network connected. No profile change.");
}
}
else if (_wifi.getCurrentProfile().sProfileRegKey == _profiles[1])
{
//TODO: do not use an INDEX use the names as in App.Config
desiredSSID = _wifi.SSIDsecondary;
OnConnectedMessage("Current Profile = Second profile");
if (network._getConnected() == false)
{
OnConnectedMessage("secondary profile not connected");
}
else
{
OnConnectedMessage("secondary profile connected");
}
//try first profile, regardless of connect state
OnConnectedMessage("Trying first Profile. Switching ...");
_wifi.setProfile(_profiles[0]); //enable first profile
desiredSSID = _wifi.SSIDprimary;
iConnectTry = 0;
//try for 40 seconds or so
while (!_bStopThread && (iConnectTry < _iSwitchTimeout))
{
Thread.Sleep(1000);
iConnectTry++;
if (_myConfig._checkConnectIP)
{
if (network._getConnected() == true) // do not care about AP association
{
break;
}
}
else //check AP association but not IP
{
if (wifi.isAssociated(desiredSSID) == true) // do not care about IP
{
break;
}
}
}
//another test for being connected
if (network._getConnected() == false)
{
OnConnectedMessage("First Profile did not connect. Switching to secondary profile...");
//switch back
_wifi.setProfile(_profiles[1]); //enable second profile
}
else
{
OnConnectedMessage("primary network connected.");
}
}
else
{
OnConnectedMessage("Current profile not in list!");
}
lock (syncObject)
bInsideSwitch = false;
OnConnectedMessage("DoSwitch() end.");
Logger.WriteLine("DoSwitch() end.");
}