WiFiScannerLinux - main.cpp - wifiScannerThread

main-wifiScannerThread.cpp

void wifiScannerThread(std::future<void> futureObj, std::string WifiIfName, WifiAPCollection *wifiAPCollection) {
    int maxNumberOfAPs = 6; // maximal number of APs scanned
    int refreshTimeInMillis = 3000; // scan frequency

    while (futureObj.wait_for(std::chrono::milliseconds(1)) == std::future_status::timeout) {
        std::this_thread::sleep_for(std::chrono::milliseconds(refreshTimeInMillis));

        int status, i;
        struct bss_info bss[maxNumberOfAPs];
        struct wifi_scan *wifi = wifi_scan_init(WifiIfName.c_str());

        status=wifi_scan_all(wifi, bss, maxNumberOfAPs);

        std::vector<WifiAP> APs;
        for (i=0;i<status && i<maxNumberOfAPs;++i)
            APs.push_back(WifiAP(bss[i].ssid, bss[i].signal_mbm/100));

        mu.lock();
        wifiAPCollection->addAPs(APs);
        mu.unlock();

        wifi_scan_close(wifi);

    }
}