How to configure and enable wlan

Please follow below steps to configure wlan

### 1. Create IWlanListener class

class NotificationListener: public telux::wlan::IWlanListener {
public:
void onEnableChanged(bool enable) {
    promise_.set_value(enable);
}

bool getEnableStatus() {
    return promise_.get_future().get();
}

void resetPromise() {
    promise_ = std::promise<bool>();
}
private:
std::promise<bool> promise_;
};

### 2. Create initialization callback object to be notified when the object has completed initialization and is ready for use

auto initCb = [&](telux::common::ServiceStatus status) {
    initPromise.set_value(status);
};

### 3. Get the WlanFactory and Device Manager instance

auto &wlanFactory = telux::wlan::WlanFactory::getInstance();
wlanDevMgr  = wlanFactory.getWlanDeviceManager(initCb);

### 4. Wait for object to complete initialization

telux::common::ServiceStatus = subSystemStatus = initPromise.get_future().get();
if (subSystemStatus == telux::common::ServiceStatus::SERVICE_AVAILABLE) {
    std::cout << " *** Wlan SubSystem is Ready *** " << std::endl;
}
else {
    std::cout << " *** Unable to initialize Wlan subsystem *** " << std::endl;
}

### 5. If WLAN is enabled, disable it

bool enableStat = false;
std::vector<telux::wlan::InterfaceStatus> ifStatus;
if(telux::common::ErrorCode::SUCCESS != wlanDevMgr->getStatus(enableStat, ifStatus)) {
    std::cout << "Failed to retrieve Wlan status" <<std::endl;
}
if(enableStat) {
    //Disable Wlan before changing configuration...
    wlanDevMgr->registerListener(listener);
    //Ensure callback returns SUCCESS and indication for Wlan disablement is received
    if((telux::common::ErrorCode::SUCCESS != wlanDevMgr->enable(false)) ||
        (true == listener->getEnableStatus())) {
        std::cout << "Failed to disable Wlan " <<std::endl;
        break;
    }
}

### 6. Set desired WLAN configurations

if(telux::common::ErrorCode::SUCCESS != wlanDevMgr->setMode(numAp, numSta)) {
    std::cout << "Failed to set Wlan configuration" <<std::endl;
}

7. Enable WLAN for new configurations to take effect

listener->resetPromise();
//Ensure callback returns SUCCESS and indication for Wlan enablement is received
if((telux::common::ErrorCode::SUCCESS != wlanDevMgr->enable(true)) ||
   (false == listener->getEnableStatus())) {
    std::cout << "Failed to enable Wlan " <<std::endl;
}