Add new proc state constants and delivery.

The activity manager now keeps a new "process state" for
each process, indicating the general execution and memory
state of the process.  This closely follows the out-of-memory
adjustment and scheduling class that it currently tracks,
but roles these together (plus a little more info) into one
more semantically meaningful number.

This value is reported to each process as it changes, so they
can do things like tune the Dalvik garbage collector to match
the current process state.

I think I should also switch to this for process states.  It
will give is more meaningful divisions of time for each process.

Also fix a problem in the activity stack where the previous
process was not being set correctly when moving between
activity stacks.

Change-Id: I598b1667dc46547f8fadae304e210c352cc9d41f

1 files changed, 44 insertions, 14 deletions

diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index cc495aae3593..6f18e84d6855 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -111,8 +111,9 @@ public abstract class ApplicationThreadNative extends Binder
         {
             data.enforceInterface(IApplicationThread.descriptor);
             IBinder b = data.readStrongBinder();
+            int procState = data.readInt();
             boolean isForward = data.readInt() != 0;
-            scheduleResumeActivity(b, isForward);
+            scheduleResumeActivity(b, procState, isForward);
             return true;
         }
         
@@ -134,6 +135,7 @@ public abstract class ApplicationThreadNative extends Binder
             ActivityInfo info = ActivityInfo.CREATOR.createFromParcel(data);
             Configuration curConfig = Configuration.CREATOR.createFromParcel(data);
             CompatibilityInfo compatInfo = CompatibilityInfo.CREATOR.createFromParcel(data);
+            int procState = data.readInt();
             Bundle state = data.readBundle();
             List<ResultInfo> ri = data.createTypedArrayList(ResultInfo.CREATOR);
             List<Intent> pi = data.createTypedArrayList(Intent.CREATOR);
@@ -143,8 +145,8 @@ public abstract class ApplicationThreadNative extends Binder
             ParcelFileDescriptor profileFd = data.readInt() != 0
                     ? data.readFileDescriptor() : null;
             boolean autoStopProfiler = data.readInt() != 0;
-            scheduleLaunchActivity(intent, b, ident, info, curConfig, compatInfo, state, ri, pi,
-                    notResumed, isForward, profileName, profileFd, autoStopProfiler);
+            scheduleLaunchActivity(intent, b, ident, info, curConfig, compatInfo, procState, state,
+                    ri, pi, notResumed, isForward, profileName, profileFd, autoStopProfiler);
             return true;
         }
         
@@ -194,8 +196,9 @@ public abstract class ApplicationThreadNative extends Binder
             Bundle resultExtras = data.readBundle();
             boolean sync = data.readInt() != 0;
             int sendingUser = data.readInt();
+            int processState = data.readInt();
             scheduleReceiver(intent, info, compatInfo, resultCode, resultData,
-                    resultExtras, sync, sendingUser);
+                    resultExtras, sync, sendingUser, processState);
             return true;
         }
 
@@ -204,7 +207,8 @@ public abstract class ApplicationThreadNative extends Binder
             IBinder token = data.readStrongBinder();
             ServiceInfo info = ServiceInfo.CREATOR.createFromParcel(data);
             CompatibilityInfo compatInfo = CompatibilityInfo.CREATOR.createFromParcel(data);
-            scheduleCreateService(token, info, compatInfo);
+            int processState = data.readInt();
+            scheduleCreateService(token, info, compatInfo, processState);
             return true;
         }
 
@@ -213,7 +217,8 @@ public abstract class ApplicationThreadNative extends Binder
             IBinder token = data.readStrongBinder();
             Intent intent = Intent.CREATOR.createFromParcel(data);
             boolean rebind = data.readInt() != 0;
-            scheduleBindService(token, intent, rebind);
+            int processState = data.readInt();
+            scheduleBindService(token, intent, rebind, processState);
             return true;
         }
 
@@ -384,8 +389,9 @@ public abstract class ApplicationThreadNative extends Binder
             boolean ordered = data.readInt() != 0;
             boolean sticky = data.readInt() != 0;
             int sendingUser = data.readInt();
+            int processState = data.readInt();
             scheduleRegisteredReceiver(receiver, intent,
-                    resultCode, dataStr, extras, ordered, sticky, sendingUser);
+                    resultCode, dataStr, extras, ordered, sticky, sendingUser, processState);
             return true;
         }
 
@@ -613,6 +619,15 @@ public abstract class ApplicationThreadNative extends Binder
             reply.writeNoException();
             return true;
         }
+
+        case SET_PROCESS_STATE_TRANSACTION:
+        {
+            data.enforceInterface(IApplicationThread.descriptor);
+            int state = data.readInt();
+            setProcessState(state);
+            reply.writeNoException();
+            return true;
+        }
         }
 
         return super.onTransact(code, data, reply, flags);
@@ -682,11 +697,12 @@ class ApplicationThreadProxy implements IApplicationThread {
         data.recycle();
     }
 
-    public final void scheduleResumeActivity(IBinder token, boolean isForward)
+    public final void scheduleResumeActivity(IBinder token, int procState, boolean isForward)
             throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(token);
+        data.writeInt(procState);
         data.writeInt(isForward ? 1 : 0);
         mRemote.transact(SCHEDULE_RESUME_ACTIVITY_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
@@ -706,7 +722,7 @@ class ApplicationThreadProxy implements IApplicationThread {
 
     public final void scheduleLaunchActivity(Intent intent, IBinder token, int ident,
             ActivityInfo info, Configuration curConfig, CompatibilityInfo compatInfo,
-            Bundle state, List<ResultInfo> pendingResults,
+            int procState, Bundle state, List<ResultInfo> pendingResults,
     		List<Intent> pendingNewIntents, boolean notResumed, boolean isForward,
     		String profileName, ParcelFileDescriptor profileFd, boolean autoStopProfiler)
     		throws RemoteException {
@@ -718,6 +734,7 @@ class ApplicationThreadProxy implements IApplicationThread {
         info.writeToParcel(data, 0);
         curConfig.writeToParcel(data, 0);
         compatInfo.writeToParcel(data, 0);
+        data.writeInt(procState);
         data.writeBundle(state);
         data.writeTypedList(pendingResults);
         data.writeTypedList(pendingNewIntents);
@@ -783,7 +800,7 @@ class ApplicationThreadProxy implements IApplicationThread {
     
     public final void scheduleReceiver(Intent intent, ActivityInfo info,
             CompatibilityInfo compatInfo, int resultCode, String resultData,
-            Bundle map, boolean sync, int sendingUser) throws RemoteException {
+            Bundle map, boolean sync, int sendingUser, int processState) throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         intent.writeToParcel(data, 0);
@@ -794,6 +811,7 @@ class ApplicationThreadProxy implements IApplicationThread {
         data.writeBundle(map);
         data.writeInt(sync ? 1 : 0);
         data.writeInt(sendingUser);
+        data.writeInt(processState);
         mRemote.transact(SCHEDULE_RECEIVER_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
         data.recycle();
@@ -823,24 +841,26 @@ class ApplicationThreadProxy implements IApplicationThread {
     }
     
     public final void scheduleCreateService(IBinder token, ServiceInfo info,
-            CompatibilityInfo compatInfo) throws RemoteException {
+            CompatibilityInfo compatInfo, int processState) throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(token);
         info.writeToParcel(data, 0);
         compatInfo.writeToParcel(data, 0);
+        data.writeInt(processState);
         mRemote.transact(SCHEDULE_CREATE_SERVICE_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
         data.recycle();
     }
 
-    public final void scheduleBindService(IBinder token, Intent intent, boolean rebind)
-            throws RemoteException {
+    public final void scheduleBindService(IBinder token, Intent intent, boolean rebind,
+            int processState) throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(token);
         intent.writeToParcel(data, 0);
         data.writeInt(rebind ? 1 : 0);
+        data.writeInt(processState);
         mRemote.transact(SCHEDULE_BIND_SERVICE_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
         data.recycle();
@@ -1023,7 +1043,7 @@ class ApplicationThreadProxy implements IApplicationThread {
 
     public void scheduleRegisteredReceiver(IIntentReceiver receiver, Intent intent,
             int resultCode, String dataStr, Bundle extras, boolean ordered,
-            boolean sticky, int sendingUser) throws RemoteException {
+            boolean sticky, int sendingUser, int processState) throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(receiver.asBinder());
@@ -1034,6 +1054,7 @@ class ApplicationThreadProxy implements IApplicationThread {
         data.writeInt(ordered ? 1 : 0);
         data.writeInt(sticky ? 1 : 0);
         data.writeInt(sendingUser);
+        data.writeInt(processState);
         mRemote.transact(SCHEDULE_REGISTERED_RECEIVER_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
         data.recycle();
@@ -1238,4 +1259,13 @@ class ApplicationThreadProxy implements IApplicationThread {
         mRemote.transact(SCHEDULE_TRANSLUCENT_CONVERSION_COMPLETE_TRANSACTION, data, null, IBinder.FLAG_ONEWAY);
         data.recycle();
     }
+
+    @Override
+    public void setProcessState(int state) throws RemoteException {
+        Parcel data = Parcel.obtain();
+        data.writeInterfaceToken(IApplicationThread.descriptor);
+        data.writeInt(state);
+        mRemote.transact(SET_PROCESS_STATE_TRANSACTION, data, null, IBinder.FLAG_ONEWAY);
+        data.recycle();
+    }
 }