Merge "Listen to battery saver changes." into tm-dev (d42478e1) · Commits · e / os / android_frameworks_base

apex/jobscheduler/service/java/com/android/server/tare/PowerSaveModeModifier.java

+65 −5

Original line number	Diff line number	Diff line
		@@ -17,27 +17,48 @@
		package com.android.server.tare;

		import android.annotation.NonNull;
		import android.content.BroadcastReceiver;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.os.PowerManager;
		import android.os.SystemClock;
		import android.util.IndentingPrintWriter;
		import android.util.Log;
		import android.util.Slog;

		/** Modifier that makes things more expensive in adaptive and full battery saver are active. */
		class PowerSaveModeModifier extends Modifier {
		private static final String TAG = "TARE-" + PowerSaveModeModifier.class.getSimpleName();
		private static final boolean DEBUG = InternalResourceService.DEBUG
		\|\| Log.isLoggable(TAG, Log.DEBUG);

		private final InternalResourceService mIrs;
		private final PowerManager mPowerManager;
		private final PowerSaveModeTracker mPowerSaveModeTracker;

		PowerSaveModeModifier(@NonNull InternalResourceService irs) {
		super();
		mIrs = irs;
		mPowerManager = irs.getContext().getSystemService(PowerManager.class);
		mPowerSaveModeTracker = new PowerSaveModeTracker();
		}

		@Override
		public void setup() {
		mPowerSaveModeTracker.startTracking(mIrs.getContext());
		}

		@Override
		public void tearDown() {
		mPowerSaveModeTracker.stopTracking(mIrs.getContext());
		}

		@Override
		long getModifiedCostToProduce(long ctp) {
		if (mPowerManager.isPowerSaveMode()) {
		if (mPowerSaveModeTracker.mPowerSaveModeEnabled) {
		return (long) (1.5 * ctp);
		}
		// TODO: get adaptive power save mode
		if (mPowerManager.isPowerSaveMode()) {
		if (mPowerSaveModeTracker.mPowerSaveModeEnabled) {
		return (long) (1.25 * ctp);
		}
		return ctp;
		@@ -46,6 +67,45 @@ class PowerSaveModeModifier extends Modifier {
		@Override
		void dump(IndentingPrintWriter pw) {
		pw.print("power save=");
		pw.println(mPowerManager.isPowerSaveMode());
		pw.println(mPowerSaveModeTracker.mPowerSaveModeEnabled);
		}

		// TODO: migrate to relying on PowerSaveState and ServiceType.TARE
		private final class PowerSaveModeTracker extends BroadcastReceiver {
		private final PowerManager mPowerManager;
		private volatile boolean mPowerSaveModeEnabled;

		private PowerSaveModeTracker() {
		mPowerManager = mIrs.getContext().getSystemService(PowerManager.class);
		}

		public void startTracking(@NonNull Context context) {
		final IntentFilter filter = new IntentFilter();
		filter.addAction(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED);
		context.registerReceiver(this, filter);

		// Initialise tracker state.
		mPowerSaveModeEnabled = mPowerManager.isPowerSaveMode();
		}

		public void stopTracking(@NonNull Context context) {
		context.unregisterReceiver(this);
		}

		@Override
		public void onReceive(Context context, Intent intent) {
		final String action = intent.getAction();
		if (PowerManager.ACTION_POWER_SAVE_MODE_CHANGED.equals(action)) {
		final boolean enabled = mPowerManager.isPowerSaveMode();
		if (DEBUG) {
		Slog.d(TAG, "Power save mode changed to " + enabled
		+ ", fired @ " + SystemClock.elapsedRealtime());
		}
		if (mPowerSaveModeEnabled != enabled) {
		mPowerSaveModeEnabled = enabled;
		mIrs.onDeviceStateChanged();
		}
		}
		}
		}
		}