am 7e76b6d1: am 6d00151c: Merge "Hopefully fix issue #2662536: Why is launcher... (7d5cea98) · Commits · e / os / android_frameworks_base

core/java/android/os/Process.java

+18 −0

Original line number	Diff line number	Diff line
		@@ -747,6 +747,24 @@ public class Process {
		*/
		public static final native void sendSignal(int pid, int signal);

		/**
		* @hide
		* Private impl for avoiding a log message... DO NOT USE without doing
		* your own log, or the Android Illuminati will find you some night and
		* beat you up.
		*/
		public static final void killProcessQuiet(int pid) {
		sendSignalQuiet(pid, SIGNAL_KILL);
		}

		/**
		* @hide
		* Private impl for avoiding a log message... DO NOT USE without doing
		* your own log, or the Android Illuminati will find you some night and
		* beat you up.
		*/
		public static final native void sendSignalQuiet(int pid, int signal);

		/** @hide */
		public static final native long getFreeMemory();

core/jni/android_util_Process.cpp

+9 −1

Original line number	Diff line number	Diff line
		@@ -311,8 +311,8 @@ jboolean android_os_Process_setOomAdj(JNIEnv* env, jobject clazz,
		sprintf(text, "%d", adj);
		write(fd, text, strlen(text));
		close(fd);
		return true;
		}
		return true;
		}
		#endif
		return false;
		@@ -797,6 +797,13 @@ void android_os_Process_sendSignal(JNIEnv* env, jobject clazz, jint pid, jint si
		}
		}

		void android_os_Process_sendSignalQuiet(JNIEnv* env, jobject clazz, jint pid, jint sig)
		{
		if (pid > 0) {
		kill(pid, sig);
		}
		}

		static jlong android_os_Process_getElapsedCpuTime(JNIEnv* env, jobject clazz)
		{
		struct timespec ts;
		@@ -854,6 +861,7 @@ static const JNINativeMethod methods[] = {
		{"setUid", "(I)I", (void*)android_os_Process_setUid},
		{"setGid", "(I)I", (void*)android_os_Process_setGid},
		{"sendSignal", "(II)V", (void*)android_os_Process_sendSignal},
		{"sendSignalQuiet", "(II)V", (void*)android_os_Process_sendSignalQuiet},
		{"supportsProcesses", "()Z", (void*)android_os_Process_supportsProcesses},
		{"getFreeMemory", "()J", (void*)android_os_Process_getFreeMemory},
		{"readProcLines", "(Ljava/lang/String;[Ljava/lang/String;[J)V", (void*)android_os_Process_readProcLines},

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

+60 −15

Original line number	Diff line number	Diff line
		@@ -321,12 +321,12 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		static final int MAX_HIDDEN_APPS = 15;

		// We put empty content processes after any hidden processes that have
		// been idle for less than 30 seconds.
		static final long CONTENT_APP_IDLE_OFFSET = 30*1000;
		// been idle for less than 15 seconds.
		static final long CONTENT_APP_IDLE_OFFSET = 15*1000;

		// We put empty content processes after any hidden processes that have
		// been idle for less than 60 seconds.
		static final long EMPTY_APP_IDLE_OFFSET = 60*1000;
		// been idle for less than 120 seconds.
		static final long EMPTY_APP_IDLE_OFFSET = 120*1000;

		static {
		// These values are set in system/rootdir/init.rc on startup.
		@@ -879,6 +879,11 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		*/
		int mAdjSeq = 0;

		/**
		* Current sequence id for process LRU updating.
		*/
		int mLruSeq = 0;

		/**
		* Set to true if the ANDROID_SIMPLE_PROCESS_MANAGEMENT envvar
		* is set, indicating the user wants processes started in such a way
		@@ -1588,8 +1593,8 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		}
		}

		private final void updateLruProcessLocked(ProcessRecord app,
		boolean oomAdj, boolean updateActivityTime) {
		private final void updateLruProcessInternalLocked(ProcessRecord app,
		boolean oomAdj, boolean updateActivityTime, int bestPos) {
		// put it on the LRU to keep track of when it should be exited.
		int lrui = mLruProcesses.indexOf(app);
		if (lrui >= 0) mLruProcesses.remove(lrui);
		@@ -1597,6 +1602,8 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		int i = mLruProcesses.size()-1;
		int skipTop = 0;

		app.lruSeq = mLruSeq;

		// compute the new weight for this process.
		if (updateActivityTime) {
		app.lastActivityTime = SystemClock.uptimeMillis();
		@@ -1619,6 +1626,7 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		// Also don't let it kick out the first few "real" hidden processes.
		skipTop = MIN_HIDDEN_APPS;
		}

		while (i >= 0) {
		ProcessRecord p = mLruProcesses.get(i);
		// If this app shouldn't be in front of the first N background
		@@ -1626,7 +1634,7 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		if (skipTop > 0 && p.setAdj >= HIDDEN_APP_MIN_ADJ) {
		skipTop--;
		}
		if (p.lruWeight <= app.lruWeight){
		if (p.lruWeight <= app.lruWeight \|\| i < bestPos) {
		mLruProcesses.add(i+1, app);
		break;
		}
		@@ -1636,12 +1644,39 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		mLruProcesses.add(0, app);
		}

		// If the app is currently using a content provider or service,
		// bump those processes as well.
		if (app.connections.size() > 0) {
		for (ConnectionRecord cr : app.connections) {
		if (cr.binding != null && cr.binding.service != null
		&& cr.binding.service.app != null
		&& cr.binding.service.app.lruSeq != mLruSeq) {
		updateLruProcessInternalLocked(cr.binding.service.app, oomAdj,
		updateActivityTime, i+1);
		}
		}
		}
		if (app.conProviders.size() > 0) {
		for (ContentProviderRecord cpr : app.conProviders.keySet()) {
		if (cpr.app != null && cpr.app.lruSeq != mLruSeq) {
		updateLruProcessInternalLocked(cpr.app, oomAdj,
		updateActivityTime, i+1);
		}
		}
		}

		//Slog.i(TAG, "Putting proc to front: " + app.processName);
		if (oomAdj) {
		updateOomAdjLocked();
		}
		}

		private final void updateLruProcessLocked(ProcessRecord app,
		boolean oomAdj, boolean updateActivityTime) {
		mLruSeq++;
		updateLruProcessInternalLocked(app, oomAdj, updateActivityTime, 0);
		}

		private final boolean updateLRUListLocked(HistoryRecord r) {
		final boolean hadit = mLRUActivities.remove(r);
		mLRUActivities.add(r);
		@@ -4677,8 +4712,10 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		// Clean up already done if the process has been re-started.
		if (app.pid == pid && app.thread != null &&
		app.thread.asBinder() == thread.asBinder()) {
		if (!app.killedBackground) {
		Slog.i(TAG, "Process " + app.processName + " (pid " + pid
		+ ") has died.");
		}
		EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.pid, app.processName);
		if (localLOGV) Slog.v(
		TAG, "Dying app: " + app + ", pid: " + pid
		@@ -7826,6 +7863,13 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		}

		if (cpr.app != null) {
		if (r.setAdj >= VISIBLE_APP_ADJ) {
		// If this is a visible app accessing the provider,
		// make sure to count it as being accessed and thus
		// back up on the LRU list. This is good because
		// content providers are often expensive to start.
		updateLruProcessLocked(cpr.app, false, true);
		}
		updateOomAdjLocked(cpr.app);
		}

		@@ -8492,12 +8536,13 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		continue;
		}
		int adj = proc.setAdj;
		if (adj >= worstType) {
		if (adj >= worstType && !proc.killedBackground) {
		Slog.w(TAG, "Killing " + proc + " (adj " + adj + "): " + reason);
		EventLog.writeEvent(EventLogTags.AM_KILL, proc.pid,
		proc.processName, adj, reason);
		killed = true;
		Process.killProcess(pids[i]);
		proc.killedBackground = true;
		Process.killProcessQuiet(pids[i]);
		}
		}
		}
		@@ -9829,6 +9874,7 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		+ " mFactoryTest=" + mFactoryTest);
		pw.println(" mGoingToSleep=" + mGoingToSleep);
		pw.println(" mLaunchingActivity=" + mLaunchingActivity);
		pw.println(" mAdjSeq=" + mAdjSeq + " mLruSeq=" + mLruSeq);
		}

		return true;
		@@ -14292,13 +14338,12 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
		if (!app.killedBackground) {
		numHidden++;
		if (numHidden > MAX_HIDDEN_APPS) {
		Slog.i(TAG, "Kill " + app.processName
		+ " (pid " + app.pid + "): hidden #" + numHidden
		+ " beyond limit " + MAX_HIDDEN_APPS);
		Slog.i(TAG, "No longer want " + app.processName
		+ " (pid " + app.pid + "): hidden #" + numHidden);
		EventLog.writeEvent(EventLogTags.AM_KILL, app.pid,
		app.processName, app.setAdj, "too many background");
		app.killedBackground = true;
		Process.killProcess(app.pid);
		Process.killProcessQuiet(app.pid);
		}
		}
		}

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

+4 −1

Original line number	Diff line number	Diff line
		@@ -66,7 +66,8 @@ class ProcessRecord implements Watchdog.PssRequestor {
		boolean bad; // True if disabled in the bad process list
		boolean killedBackground; // True when proc has been killed due to too many bg
		IBinder forcingToForeground;// Token that is forcing this process to be foreground
		int adjSeq; // Sequence id for identifying repeated trav
		int adjSeq; // Sequence id for identifying oom_adj assignment cycles
		int lruSeq; // Sequence id for identifying LRU update cycles
		ComponentName instrumentationClass;// class installed to instrument app
		ApplicationInfo instrumentationInfo; // the application being instrumented
		String instrumentationProfileFile; // where to save profiling
		@@ -175,6 +176,8 @@ class ProcessRecord implements Watchdog.PssRequestor {
		pw.print(prefix); pw.print("persistent="); pw.print(persistent);
		pw.print(" removed="); pw.print(removed);
		pw.print(" persistentActivities="); pw.println(persistentActivities);
		pw.print(prefix); pw.print("adjSeq="); pw.print(adjSeq);
		pw.print(" lruSeq="); pw.println(lruSeq);
		if (killedBackground) {
		pw.print(prefix); pw.print("killedBackground="); pw.println(killedBackground);
		}