Subscribe to the microphone toggle state.
When the microphone toggle is on, all connections are clamped down to
200 Hz. When the microphone toggle is off, the original rates of
connections are recovered.
Test: atest CtsSensorTestCases CtsSensorRatePermissionTestCases
Bug: 136069189
Change-Id: Ifc446b726c4200e1a1dae5d7c3026238928383dc
diff --git a/services/sensorservice/SensorEventConnection.h b/services/sensorservice/SensorEventConnection.h
index 7c8c4f3..7acc0e6 100644
--- a/services/sensorservice/SensorEventConnection.h
+++ b/services/sensorservice/SensorEventConnection.h
@@ -68,6 +68,9 @@
String8 getPackageName() const;
uid_t getUid() const { return mUid; }
+ // cap/uncap existing connection depending on the state of the mic toggle.
+ void onMicSensorAccessChanged(bool isMicToggleOn);
+ userid_t getUserId() const { return mUserId; }
private:
virtual ~SensorEventConnection();
@@ -137,6 +140,10 @@
// Call noteOp for the sensor if the sensor requires a permission
bool noteOpIfRequired(const sensors_event_t& event);
+ // Limits all active connections when the mic toggle is flipped to on.
+ void capRates();
+ // Recover sensor connection previously capped by capRates().
+ void uncapRates();
sp<SensorService> const mService;
sp<BitTube> mChannel;
uid_t mUid;
@@ -189,6 +196,9 @@
// Store a mapping of sensor handles to required AppOp for a sensor. This map only contains a
// valid mapping for sensors that require a permission in order to reduce the lookup time.
std::unordered_map<int32_t, int32_t> mHandleToAppOp;
+ // Mapping of sensor handles to its rate before being capped by the mic toggle.
+ std::unordered_map<int, nsecs_t> mMicSamplingPeriodBackup;
+ userid_t mUserId;
};
} // namepsace android