Handle backgrounded apps for direct sensor connections
Uses the stopAll()/recoverAll() logic to temporarily stop/enable
sensors for direct connections when an app becomes idle/active.
Bug: 74395023
Test: CTS SensorDirectReportTest and verify pass
Test: 1) Subscribe to sensor on sensorlogger
2) Put app to background and wait
3) Verify subscription is disabled once app is idle
4) Put app to foreground and verify app can receive sensor samples
Test: Verify above test while a_sns_test streaming samples
Test: Verify above test with sensor service restrict and privacy mode
Change-Id: Id1981213fc13a9012fa756b8cd35fae6f144c105
diff --git a/services/sensorservice/SensorDirectConnection.h b/services/sensorservice/SensorDirectConnection.h
index ead08d3..4181b65 100644
--- a/services/sensorservice/SensorDirectConnection.h
+++ b/services/sensorservice/SensorDirectConnection.h
@@ -42,17 +42,14 @@
void dump(String8& result) const;
void dump(util::ProtoOutputStream* proto) const;
uid_t getUid() const { return mUid; }
+ const String16& getOpPackageName() const { return mOpPackageName; }
int32_t getHalChannelHandle() const;
bool isEquivalent(const sensors_direct_mem_t *mem) const;
- // stop all active sensor report. if backupRecord is set to false,
- // those report can be recovered by recoverAll
- // called by SensorService when enter restricted mode
- void stopAll(bool backupRecord = false);
-
- // recover sensor reports previously stopped by stopAll(true)
- // called by SensorService when return to NORMAL mode.
- void recoverAll();
+ // Invoked when access to sensors for this connection has changed, e.g. lost or
+ // regained due to changes in the sensor restricted/privacy mode or the
+ // app changed to idle/active status.
+ void onSensorAccessChanged(bool hasAccess);
protected:
virtual ~SensorDirectConnection();
@@ -66,6 +63,25 @@
virtual int32_t configureChannel(int handle, int rateLevel);
virtual void destroy();
private:
+ bool hasSensorAccess() const;
+
+ // Stops all active sensor direct report requests.
+ //
+ // If backupRecord is true, stopped requests can be recovered
+ // by a subsequent recoverAll() call (e.g. when temporarily stopping
+ // sensors for sensor privacy/restrict mode or when an app becomes
+ // idle).
+ void stopAll(bool backupRecord = false);
+ // Same as stopAll() but with mConnectionLock held.
+ void stopAllLocked(bool backupRecord);
+
+ // Recover sensor requests previously stopped by stopAll(true).
+ // This method can be called when a sensor access resumes (e.g.
+ // sensor privacy/restrict mode lifted or app becomes active).
+ //
+ // If no requests are backed up by stopAll(), this method is no-op.
+ void recoverAll();
+
const sp<SensorService> mService;
const uid_t mUid;
const sensors_direct_mem_t mMem;