Update to work with the activity manager taking over OOM settings.

The values it needs are no longer in properties.

Also fix a few problems: bug with apps being left in the services
list, sorting of internal storage.

Change-Id: Ife9706e004931269c36a7bc37b9dbb016064c2e4

4 files changed, 75 insertions, 93 deletions

diff --git a/src/com/android/settings/applications/ApplicationsState.java b/src/com/android/settings/applications/ApplicationsState.java
index 519c2033a..e0899cb11 100644
--- a/src/com/android/settings/applications/ApplicationsState.java
+++ b/src/com/android/settings/applications/ApplicationsState.java
@@ -80,6 +80,8 @@ public class ApplicationsState {
         final long id;
         String label;
         long size;
+        long internalSize;
+        long externalSize;
 
         boolean mounted;
         
@@ -155,7 +157,8 @@ public class ApplicationsState {
         }
     };
 
-    public static final Comparator<AppEntry> SIZE_COMPARATOR = new Comparator<AppEntry>() {
+    public static final Comparator<AppEntry> SIZE_COMPARATOR
+            = new Comparator<AppEntry>() {
         private final Collator sCollator = Collator.getInstance();
         @Override
         public int compare(AppEntry object1, AppEntry object2) {
@@ -165,6 +168,28 @@ public class ApplicationsState {
         }
     };
 
+    public static final Comparator<AppEntry> INTERNAL_SIZE_COMPARATOR
+            = new Comparator<AppEntry>() {
+        private final Collator sCollator = Collator.getInstance();
+        @Override
+        public int compare(AppEntry object1, AppEntry object2) {
+            if (object1.internalSize < object2.internalSize) return 1;
+            if (object1.internalSize > object2.internalSize) return -1;
+            return sCollator.compare(object1.label, object2.label);
+        }
+    };
+
+    public static final Comparator<AppEntry> EXTERNAL_SIZE_COMPARATOR
+            = new Comparator<AppEntry>() {
+        private final Collator sCollator = Collator.getInstance();
+        @Override
+        public int compare(AppEntry object1, AppEntry object2) {
+            if (object1.externalSize < object2.externalSize) return 1;
+            if (object1.externalSize > object2.externalSize) return -1;
+            return sCollator.compare(object1.label, object2.label);
+        }
+    };
+
     public static final AppFilter THIRD_PARTY_FILTER = new AppFilter() {
         public void init() {
         }
@@ -712,8 +737,10 @@ public class ApplicationsState {
                                 entry.externalCodeSize = externalCodeSize;
                                 entry.externalDataSize = externalDataSize;
                                 entry.sizeStr = getSizeStr(entry.size);
-                                entry.internalSizeStr = getSizeStr(getTotalInternalSize(stats));
-                                entry.externalSizeStr = getSizeStr(getTotalExternalSize(stats));
+                                entry.internalSize = getTotalInternalSize(stats);
+                                entry.internalSizeStr = getSizeStr(entry.internalSize);
+                                entry.externalSize = getTotalExternalSize(stats);
+                                entry.externalSizeStr = getSizeStr(entry.externalSize);
                                 if (DEBUG) Log.i(TAG, "Set size of " + entry.label + " " + entry
                                         + ": " + entry.sizeStr);
                                 sizeChanged = true;
diff --git a/src/com/android/settings/applications/ManageApplications.java b/src/com/android/settings/applications/ManageApplications.java
index 554ece36e..68c942db6 100644
--- a/src/com/android/settings/applications/ManageApplications.java
+++ b/src/com/android/settings/applications/ManageApplications.java
@@ -333,7 +333,17 @@ public class ManageApplications extends Fragment implements
             }
             switch (mLastSortMode) {
                 case SORT_ORDER_SIZE:
-                    comparatorObj = ApplicationsState.SIZE_COMPARATOR;
+                    switch (mWhichSize) {
+                        case SIZE_INTERNAL:
+                            comparatorObj = ApplicationsState.INTERNAL_SIZE_COMPARATOR;
+                            break;
+                        case SIZE_EXTERNAL:
+                            comparatorObj = ApplicationsState.EXTERNAL_SIZE_COMPARATOR;
+                            break;
+                        default:
+                            comparatorObj = ApplicationsState.SIZE_COMPARATOR;
+                            break;
+                    }
                     break;
                 default:
                     comparatorObj = ApplicationsState.ALPHA_COMPARATOR;
diff --git a/src/com/android/settings/applications/RunningProcessesView.java b/src/com/android/settings/applications/RunningProcessesView.java
index 1f91c33b7..7c3ebb034 100644
--- a/src/com/android/settings/applications/RunningProcessesView.java
+++ b/src/com/android/settings/applications/RunningProcessesView.java
@@ -16,6 +16,7 @@
 
 package com.android.settings.applications;
 
+import com.android.internal.util.MemInfoReader;
 import com.android.settings.R;
 
 import android.app.ActivityManager;
@@ -24,9 +25,7 @@ import android.app.Fragment;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
-import android.os.StrictMode;
 import android.os.SystemClock;
-import android.os.SystemProperties;
 import android.preference.PreferenceActivity;
 import android.text.format.DateUtils;
 import android.text.format.Formatter;
@@ -42,7 +41,6 @@ import android.widget.ListView;
 import android.widget.TextView;
 import android.widget.AbsListView.RecyclerListener;
 
-import java.io.FileInputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -51,9 +49,6 @@ public class RunningProcessesView extends FrameLayout
         implements AdapterView.OnItemClickListener, RecyclerListener,
         RunningState.OnRefreshUiListener {
     
-    // Memory pages are 4K.
-    static final long PAGE_SIZE = 4*1024;
-    
     long SECONDARY_SERVER_MEM;
     
     final HashMap<View, ActiveItem> mActiveItems = new HashMap<View, ActiveItem>();
@@ -85,9 +80,9 @@ public class RunningProcessesView extends FrameLayout
     long mLastAvailMemory = -1;
     
     Dialog mCurDialog;
-    
-    byte[] mBuffer = new byte[1024];
-    
+
+    MemInfoReader mMemInfoReader = new MemInfoReader();
+
     public static class ActiveItem {
         View mRootView;
         RunningState.BaseItem mItem;
@@ -304,71 +299,7 @@ public class RunningProcessesView extends FrameLayout
             }
         }
     }
-    
-    private boolean matchText(byte[] buffer, int index, String text) {
-        int N = text.length();
-        if ((index+N) >= buffer.length) {
-            return false;
-        }
-        for (int i=0; i<N; i++) {
-            if (buffer[index+i] != text.charAt(i)) {
-                return false;
-            }
-        }
-        return true;
-    }
-    
-    private long extractMemValue(byte[] buffer, int index) {
-        while (index < buffer.length && buffer[index] != '\n') {
-            if (buffer[index] >= '0' && buffer[index] <= '9') {
-                int start = index;
-                index++;
-                while (index < buffer.length && buffer[index] >= '0'
-                    && buffer[index] <= '9') {
-                    index++;
-                }
-                String str = new String(buffer, 0, start, index-start);
-                return ((long)Integer.parseInt(str)) * 1024;
-            }
-            index++;
-        }
-        return 0;
-    }
-    
-    private long readAvailMem() {
-        // Permit disk reads here, as /proc/meminfo isn't really "on
-        // disk" and should be fast.  TODO: make BlockGuard ignore
-        // /proc/ and /sys/ files perhaps?
-        StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
-        try {
-            long memFree = 0;
-            long memCached = 0;
-            FileInputStream is = new FileInputStream("/proc/meminfo");
-            int len = is.read(mBuffer);
-            is.close();
-            final int BUFLEN = mBuffer.length;
-            for (int i=0; i<len && (memFree == 0 || memCached == 0); i++) {
-                if (matchText(mBuffer, i, "MemFree")) {
-                    i += 7;
-                    memFree = extractMemValue(mBuffer, i);
-                } else if (matchText(mBuffer, i, "Cached")) {
-                    i += 6;
-                    memCached = extractMemValue(mBuffer, i);
-                }
-                while (i < BUFLEN && mBuffer[i] != '\n') {
-                    i++;
-                }
-            }
-            return memFree + memCached;
-        } catch (java.io.FileNotFoundException e) {
-        } catch (java.io.IOException e) {
-        } finally {
-            StrictMode.setThreadPolicy(savedPolicy);
-        }
-        return 0;
-    }
 
-    
     void refreshUi(boolean dataChanged) {
         if (dataChanged) {
             ServiceListAdapter adapter = (ServiceListAdapter)(mListView.getAdapter());
@@ -383,11 +314,13 @@ public class RunningProcessesView extends FrameLayout
 
         // This is the amount of available memory until we start killing
         // background services.
-        long availMem = readAvailMem() - SECONDARY_SERVER_MEM;
+        mMemInfoReader.readMemInfo();
+        long availMem = mMemInfoReader.getFreeSize() + mMemInfoReader.getCachedSize()
+                - SECONDARY_SERVER_MEM;
         if (availMem < 0) {
             availMem = 0;
         }
-        
+
         synchronized (mState.mLock) {
             if (mLastNumBackgroundProcesses != mState.mNumBackgroundProcesses
                     || mLastBackgroundProcessMemory != mState.mBackgroundProcessMemory
@@ -395,10 +328,14 @@ public class RunningProcessesView extends FrameLayout
                 mLastNumBackgroundProcesses = mState.mNumBackgroundProcesses;
                 mLastBackgroundProcessMemory = mState.mBackgroundProcessMemory;
                 mLastAvailMemory = availMem;
-                String sizeStr = Formatter.formatShortFileSize(getContext(),
-                        mLastAvailMemory + mLastBackgroundProcessMemory);
+                long freeMem = mLastAvailMemory + mLastBackgroundProcessMemory;
+                String sizeStr = Formatter.formatShortFileSize(getContext(), freeMem);
                 mBackgroundProcessText.setText(getResources().getString(
                         R.string.service_background_processes, sizeStr));
+                sizeStr = Formatter.formatShortFileSize(getContext(),
+                        mMemInfoReader.getTotalSize() - freeMem);
+                mForegroundProcessText.setText(getResources().getString(
+                        R.string.service_foreground_processes, sizeStr));
             }
             if (mLastNumForegroundProcesses != mState.mNumForegroundProcesses
                     || mLastForegroundProcessMemory != mState.mForegroundProcessMemory
@@ -408,15 +345,18 @@ public class RunningProcessesView extends FrameLayout
                 mLastForegroundProcessMemory = mState.mForegroundProcessMemory;
                 mLastNumServiceProcesses = mState.mNumServiceProcesses;
                 mLastServiceProcessMemory = mState.mServiceProcessMemory;
+                /*
                 String sizeStr = Formatter.formatShortFileSize(getContext(),
                         mLastForegroundProcessMemory + mLastServiceProcessMemory);
                 mForegroundProcessText.setText(getResources().getString(
                         R.string.service_foreground_processes, sizeStr));
+                */
             }
             
-            float totalMem = availMem + mLastBackgroundProcessMemory
-                    + mLastForegroundProcessMemory + mLastServiceProcessMemory;
-            mColorBar.setRatios(mLastForegroundProcessMemory/totalMem,
+            float totalMem = mMemInfoReader.getTotalSize();
+            float totalShownMem = availMem + mLastBackgroundProcessMemory
+                    + mLastServiceProcessMemory;
+            mColorBar.setRatios((totalMem-totalShownMem)/totalMem,
                     mLastServiceProcessMemory/totalMem,
                     mLastBackgroundProcessMemory/totalMem);
         }
@@ -482,10 +422,10 @@ public class RunningProcessesView extends FrameLayout
                 mAdapter.setShowBackground(false);
             }
         });
-        
-        // Magic!  Implementation detail!  Don't count on this!
-        SECONDARY_SERVER_MEM =
-            Integer.valueOf(SystemProperties.get("ro.SECONDARY_SERVER_MEM"))*PAGE_SIZE;
+
+        ActivityManager.MemoryInfo memInfo = new ActivityManager.MemoryInfo();
+        mAm.getMemoryInfo(memInfo);
+        SECONDARY_SERVER_MEM = memInfo.secondaryServerThreshold;
     }
     
     public void doPause() {
diff --git a/src/com/android/settings/applications/RunningState.java b/src/com/android/settings/applications/RunningState.java
index e9053b9ea..552aa56d0 100644
--- a/src/com/android/settings/applications/RunningState.java
+++ b/src/com/android/settings/applications/RunningState.java
@@ -28,7 +28,6 @@ import android.content.pm.PackageItemInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ServiceInfo;
 import android.content.res.Resources;
-import android.os.Debug;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
@@ -250,7 +249,9 @@ public class RunningState {
         ActivityManager.RunningAppProcessInfo mRunningProcessInfo;
         
         MergedItem mMergedItem;
-        
+
+        boolean mInteresting;
+
         // Purely for sorting.
         boolean mIsSystem;
         boolean mIsStarted;
@@ -616,7 +617,8 @@ public class RunningState {
             return true;
         }
         if ((pi.flags&ActivityManager.RunningAppProcessInfo.FLAG_PERSISTENT) == 0
-                && pi.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND
+                && pi.importance >= ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND
+                && pi.importance < ActivityManager.RunningAppProcessInfo.IMPORTANCE_CANT_SAVE_STATE
                 && pi.importanceReasonCode
                         == ActivityManager.RunningAppProcessInfo.REASON_UNKNOWN) {
             return true;
@@ -718,13 +720,16 @@ public class RunningState {
                     mInterestingProcesses.add(proc);
                 }
                 proc.mCurSeq = mSequence;
+                proc.mInteresting = true;
                 proc.ensureLabel(pm);
+            } else {
+                proc.mInteresting = false;
             }
             
             proc.mRunningSeq = mSequence;
             proc.mRunningProcessInfo = pi;
         }
-        
+
         // Build the chains from client processes to the process they are
         // dependent on; also remove any old running processes.
         int NRP = mRunningProcesses.size();
@@ -756,7 +761,7 @@ public class RunningState {
         int NHP = mInterestingProcesses.size();
         for (int i=0; i<NHP; i++) {
             ProcessItem proc = mInterestingProcesses.get(i);
-            if (mRunningProcesses.get(proc.mPid) == null) {
+            if (!proc.mInteresting || mRunningProcesses.get(proc.mPid) == null) {
                 changed = true;
                 mInterestingProcesses.remove(i);
                 i--;