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YASMIN/sensors/android/WiFiSensorAndroid.h
kazu 5ddc455bee changed number of fingerprint scans
minor parameter changes
more log lines
added VAP log to UI (debug)
fixed missing wifi timestamp for android live data
2016-09-28 15:29:25 +02:00

81 lines
1.6 KiB
C++

#ifndef WIFISENSORANDROID_H
#define WIFISENSORANDROID_H
#ifdef ANDROID
#include <QAndroidJniObject>
#include "../../misc/Debug.h"
#include "../WiFiSensor.h"
class WiFiSensorAndroid : public WiFiSensor {
private:
/** hidden ctor. use singleton! */
WiFiSensorAndroid() {;}
bool started = false;
public:
/** singleton access */
static WiFiSensorAndroid& get() {
static WiFiSensorAndroid wifi;
return wifi;
}
void start() override {
// do NOT start twice!
if (started) {return;}
// start scanning
int res = QAndroidJniObject::callStaticMethod<int>("indoor/java/WiFi", "start", "()I");
if (res != 1337) {throw Exception("error while starting WiFi");}
started = true;
}
void stop() override {
throw "todo";
}
bool isRunning() const override {
return started;
}
/** called from java. handle the given incoming scan result */
void handle(const std::string data) {
// to-be-constructed sensor data
WiFiMeasurements sensorData;
// tag all scan-entries with the current app runtime
const Timestamp curTS = Timestamp::fromRunningTime();
// parse each mac->rssi entry
for (int i = 0; i < (int)data.length(); i += 17+1+2) {
const std::string bssid = data.substr(i, 17);
const int8_t rssi = data[i+17];
const int8_t pad1 = data[i+18];
const int8_t pad2 = data[i+19];
if (pad1 != 0 || pad2 != 0) {Debug::error("padding error within WiFi scan result");}
sensorData.entries.push_back(WiFiMeasurement(AccessPoint(bssid), rssi, curTS));
}
// call listeners
informListeners(sensorData);
}
};
#endif
#endif // WIFISENSORANDROID_H