am d53710ce: Merge "Extend process observer to be usable for media routing." into jb-dev (c3895253) · Commits · e / os / android_frameworks_base

core/java/android/app/ActivityManager.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -1359,6 +1359,13 @@ public class ActivityManager {
		*/
		public int lastTrimLevel;

		/**
		* Constant for {@link #importance}: this is a persistent process.
		* Only used when reporting to process observers.
		* @hide
		*/
		public static final int IMPORTANCE_PERSISTENT = 50;

		/**
		* Constant for {@link #importance}: this process is running the
		* foreground UI.

core/java/android/app/IProcessObserver.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ package android.app;
		oneway interface IProcessObserver {

		void onForegroundActivitiesChanged(int pid, int uid, boolean foregroundActivities);
		void onImportanceChanged(int pid, int uid, int importance);
		void onProcessDied(int pid, int uid);

		}

services/java/com/android/server/am/ActivityManagerService.java

+145 −23

Original line number	Diff line number	Diff line
		@@ -176,6 +176,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		static final boolean DEBUG_SERVICE_EXECUTING = localLOGV \|\| false;
		static final boolean DEBUG_VISBILITY = localLOGV \|\| false;
		static final boolean DEBUG_PROCESSES = localLOGV \|\| false;
		static final boolean DEBUG_PROCESS_OBSERVERS = localLOGV \|\| false;
		static final boolean DEBUG_PROVIDER = localLOGV \|\| false;
		static final boolean DEBUG_URI_PERMISSION = localLOGV \|\| false;
		static final boolean DEBUG_USER_LEAVING = localLOGV \|\| false;
		@@ -764,8 +765,24 @@ public final class ActivityManagerService extends ActivityManagerNative
		boolean mAutoStopProfiler = false;
		String mOpenGlTraceApp = null;

		static class ProcessChangeItem {
		static final int CHANGE_ACTIVITIES = 1<<0;
		static final int CHANGE_IMPORTANCE= 1<<1;
		int changes;
		int uid;
		int pid;
		int importance;
		boolean foregroundActivities;
		}

		final RemoteCallbackList<IProcessObserver> mProcessObservers
		= new RemoteCallbackList<IProcessObserver>();
		ProcessChangeItem[] mActiveProcessChanges = new ProcessChangeItem[5];

		final ArrayList<ProcessChangeItem> mPendingProcessChanges
		= new ArrayList<ProcessChangeItem>();
		final ArrayList<ProcessChangeItem> mAvailProcessChanges
		= new ArrayList<ProcessChangeItem>();

		/**
		* Callback of last caller to {@link #requestPss}.
		@@ -855,7 +872,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		static final int CLEAR_DNS_CACHE = 28;
		static final int UPDATE_HTTP_PROXY = 29;
		static final int SHOW_COMPAT_MODE_DIALOG_MSG = 30;
		static final int DISPATCH_FOREGROUND_ACTIVITIES_CHANGED = 31;
		static final int DISPATCH_PROCESSES_CHANGED = 31;
		static final int DISPATCH_PROCESS_DIED = 32;
		static final int REPORT_MEM_USAGE = 33;

		@@ -1195,11 +1212,8 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		break;
		}
		case DISPATCH_FOREGROUND_ACTIVITIES_CHANGED: {
		final int pid = msg.arg1;
		final int uid = msg.arg2;
		final boolean foregroundActivities = (Boolean) msg.obj;
		dispatchForegroundActivitiesChanged(pid, uid, foregroundActivities);
		case DISPATCH_PROCESSES_CHANGED: {
		dispatchProcessesChanged();
		break;
		}
		case DISPATCH_PROCESS_DIED: {
		@@ -2260,19 +2274,43 @@ public final class ActivityManagerService extends ActivityManagerNative

		void reportResumedActivityLocked(ActivityRecord r) {
		//Slog.i(TAG, "**** REPORT RESUME: " + r);

		final int identHash = System.identityHashCode(r);
		updateUsageStats(r, true);
		}

		private void dispatchForegroundActivitiesChanged(int pid, int uid, boolean foregroundActivities) {
		private void dispatchProcessesChanged() {
		int N;
		synchronized (this) {
		N = mPendingProcessChanges.size();
		if (mActiveProcessChanges.length < N) {
		mActiveProcessChanges = new ProcessChangeItem[N];
		}
		mPendingProcessChanges.toArray(mActiveProcessChanges);
		mAvailProcessChanges.addAll(mPendingProcessChanges);
		mPendingProcessChanges.clear();
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "*** Delivering " + N + " process changes");
		}
		int i = mProcessObservers.beginBroadcast();
		while (i > 0) {
		i--;
		final IProcessObserver observer = mProcessObservers.getBroadcastItem(i);
		if (observer != null) {
		try {
		observer.onForegroundActivitiesChanged(pid, uid, foregroundActivities);
		for (int j=0; j<N; j++) {
		ProcessChangeItem item = mActiveProcessChanges[j];
		if ((item.changes&ProcessChangeItem.CHANGE_ACTIVITIES) != 0) {
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "ACTIVITIES CHANGED pid="
		+ item.pid + " uid=" + item.uid + ": "
		+ item.foregroundActivities);
		observer.onForegroundActivitiesChanged(item.pid, item.uid,
		item.foregroundActivities);
		}
		if ((item.changes&ProcessChangeItem.CHANGE_IMPORTANCE) != 0) {
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "IMPORTANCE CHANGED pid="
		+ item.pid + " uid=" + item.uid + ": " + item.importance);
		observer.onImportanceChanged(item.pid, item.uid,
		item.importance);
		}
		}
		} catch (RemoteException e) {
		}
		}
		@@ -10802,6 +10840,13 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}

		for (int i = mPendingProcessChanges.size()-1; i>=0; i--) {
		ProcessChangeItem item = mPendingProcessChanges.get(i);
		if (item.pid == app.pid) {
		mPendingProcessChanges.remove(i);
		mAvailProcessChanges.add(item);
		}
		}
		mHandler.obtainMessage(DISPATCH_PROCESS_DIED, app.pid, app.info.uid, null).sendToTarget();

		// If the caller is restarting this app, then leave it in its
		@@ -13734,9 +13779,6 @@ public final class ActivityManagerService extends ActivityManagerNative
		return (app.curAdj=app.maxAdj);
		}

		final boolean hadForegroundActivities = app.foregroundActivities;

		app.foregroundActivities = false;
		app.keeping = false;
		app.systemNoUi = false;

		@@ -13744,18 +13786,22 @@ public final class ActivityManagerService extends ActivityManagerNative
		// important to least, and assign an appropriate OOM adjustment.
		int adj;
		int schedGroup;
		boolean foregroundActivities = false;
		boolean interesting = false;
		BroadcastQueue queue;
		if (app == TOP_APP) {
		// The last app on the list is the foreground app.
		adj = ProcessList.FOREGROUND_APP_ADJ;
		schedGroup = Process.THREAD_GROUP_DEFAULT;
		app.adjType = "top-activity";
		app.foregroundActivities = true;
		foregroundActivities = true;
		interesting = true;
		} else if (app.instrumentationClass != null) {
		// Don't want to kill running instrumentation.
		adj = ProcessList.FOREGROUND_APP_ADJ;
		schedGroup = Process.THREAD_GROUP_DEFAULT;
		app.adjType = "instrumentation";
		interesting = true;
		} else if ((queue = isReceivingBroadcast(app)) != null) {
		// An app that is currently receiving a broadcast also
		// counts as being in the foreground for OOM killer purposes.
		@@ -13791,7 +13837,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		boolean hasStoppingActivities = false;

		// Examine all activities if not already foreground.
		if (!app.foregroundActivities && activitiesSize > 0) {
		if (!foregroundActivities && activitiesSize > 0) {
		for (int j = 0; j < activitiesSize; j++) {
		final ActivityRecord r = app.activities.get(j);
		if (r.visible) {
		@@ -13802,7 +13848,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		schedGroup = Process.THREAD_GROUP_DEFAULT;
		app.hidden = false;
		app.foregroundActivities = true;
		foregroundActivities = true;
		break;
		} else if (r.state == ActivityState.PAUSING \|\| r.state == ActivityState.PAUSED) {
		if (adj > ProcessList.PERCEPTIBLE_APP_ADJ) {
		@@ -13810,13 +13856,13 @@ public final class ActivityManagerService extends ActivityManagerNative
		app.adjType = "pausing";
		}
		app.hidden = false;
		app.foregroundActivities = true;
		foregroundActivities = true;
		} else if (r.state == ActivityState.STOPPING) {
		// We will apply the actual adjustment later, because
		// we want to allow this process to immediately go through
		// any memory trimming that is in effect.
		app.hidden = false;
		app.foregroundActivities = true;
		foregroundActivities = true;
		hasStoppingActivities = true;
		}
		}
		@@ -13839,6 +13885,10 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}

		if (app.foregroundServices) {
		interesting = true;
		}

		if (adj > ProcessList.HEAVY_WEIGHT_APP_ADJ && app == mHeavyWeightProcess) {
		// We don't want to kill the current heavy-weight process.
		adj = ProcessList.HEAVY_WEIGHT_APP_ADJ;
		@@ -14188,12 +14238,84 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}

		int importance = app.memImportance;
		if (importance == 0 \|\| adj != app.curAdj \|\| schedGroup != app.curSchedGroup) {
		app.curAdj = adj;
		app.curSchedGroup = schedGroup;
		if (!interesting) {
		// For this reporting, if there is not something explicitly
		// interesting in this process then we will push it to the
		// background importance.
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
		} else if (adj >= ProcessList.HIDDEN_APP_MIN_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
		} else if (adj >= ProcessList.SERVICE_B_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE;
		} else if (adj >= ProcessList.HOME_APP_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_BACKGROUND;
		} else if (adj >= ProcessList.SERVICE_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_SERVICE;
		} else if (adj >= ProcessList.HEAVY_WEIGHT_APP_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_CANT_SAVE_STATE;
		} else if (adj >= ProcessList.PERCEPTIBLE_APP_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_PERCEPTIBLE;
		} else if (adj >= ProcessList.VISIBLE_APP_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_VISIBLE;
		} else if (adj >= ProcessList.FOREGROUND_APP_ADJ) {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND;
		} else {
		importance = ActivityManager.RunningAppProcessInfo.IMPORTANCE_PERSISTENT;
		}
		}

		if (hadForegroundActivities != app.foregroundActivities) {
		mHandler.obtainMessage(DISPATCH_FOREGROUND_ACTIVITIES_CHANGED, app.pid, app.info.uid,
		app.foregroundActivities).sendToTarget();
		int changes = importance != app.memImportance ? ProcessChangeItem.CHANGE_IMPORTANCE : 0;
		if (foregroundActivities != app.foregroundActivities) {
		changes \|= ProcessChangeItem.CHANGE_ACTIVITIES;
		}
		if (changes != 0) {
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "Changes in " + app + ": " + changes);
		app.memImportance = importance;
		app.foregroundActivities = foregroundActivities;
		int i = mPendingProcessChanges.size()-1;
		ProcessChangeItem item = null;
		while (i >= 0) {
		item = mPendingProcessChanges.get(i);
		if (item.pid == app.pid) {
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "Re-using existing item: " + item);
		break;
		}
		i--;
		}
		if (i < 0) {
		// No existing item in pending changes; need a new one.
		final int NA = mAvailProcessChanges.size();
		if (NA > 0) {
		item = mAvailProcessChanges.remove(NA-1);
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "Retreiving available item: " + item);
		} else {
		item = new ProcessChangeItem();
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "Allocating new item: " + item);
		}
		item.changes = 0;
		item.pid = app.pid;
		item.uid = app.info.uid;
		if (mPendingProcessChanges.size() == 0) {
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG,
		"*** Enqueueing dispatch processes changed!");
		mHandler.obtainMessage(DISPATCH_PROCESSES_CHANGED).sendToTarget();
		}
		mPendingProcessChanges.add(item);
		}
		item.changes \|= changes;
		item.importance = importance;
		item.foregroundActivities = foregroundActivities;
		if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG, "Item "
		+ Integer.toHexString(System.identityHashCode(item))
		+ " " + app.toShortString() + ": changes=" + item.changes
		+ " importance=" + item.importance
		+ " foreground=" + item.foregroundActivities
		+ " type=" + app.adjType + " source=" + app.adjSource
		+ " target=" + app.adjTarget);
		}

		return app.curRawAdj;

services/java/com/android/server/am/ProcessRecord.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -69,6 +69,7 @@ class ProcessRecord {
		int curSchedGroup; // Currently desired scheduling class
		int setSchedGroup; // Last set to background scheduling class
		int trimMemoryLevel; // Last selected memory trimming level
		int memImportance; // Importance constant computed from curAdj
		boolean serviceb; // Process currently is on the service B list
		boolean keeping; // Actively running code so don't kill due to that?
		boolean setIsForeground; // Running foreground UI when last set?

services/java/com/android/server/net/NetworkPolicyManagerService.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -395,6 +395,10 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
		pid, uid, foregroundActivities).sendToTarget();
		}

		@Override
		public void onImportanceChanged(int pid, int uid, int importance) {
		}

		@Override
		public void onProcessDied(int pid, int uid) {
		mHandler.obtainMessage(MSG_PROCESS_DIED, pid, uid).sendToTarget();