commit ce86ba86df61de8b34b226a4eb6c23ec33e866e0
author Dianne Hackborn <hackbod@google.com> Wed Jul 13 19:33:41 2011 -0700
committer Dianne Hackborn <hackbod@google.com> Thu Jul 14 10:39:39 2011 -0700
tree bd6a8d599da38dd78c28f82cf0575b4294ff7199
parent f7537bccb2b2ca2fa6c0205c4b24acd0836c0006

Improve handling of low memory.

Now classify background processes into a set of bins of how much
memory they should try to clear.  The last bin also involves
destroying all activities in that process.

Removed the old code for the simulator that is no longer needed
(yay).  The debugging features it had are now integrated into the
regular oom adj code.

Small fixes to load average service.

Change-Id: Ic8df401714b188c73b50dbc8f8e6345b58f1f3a0

core/java/android/app/ActivityThread.java

diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index ee04729..8994b17 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -932,6 +932,10 @@
             ucd.info = info;
             queueOrSendMessage(H.UPDATE_PACKAGE_COMPATIBILITY_INFO, ucd);
         }
+
+        public void scheduleTrimMemory(int level) {
+            queueOrSendMessage(H.TRIM_MEMORY, level);
+        }
     }
 
     private final class H extends Handler {
@@ -975,6 +979,7 @@
         public static final int SLEEPING                = 137;
         public static final int SET_CORE_SETTINGS       = 138;
         public static final int UPDATE_PACKAGE_COMPATIBILITY_INFO = 139;
+        public static final int TRIM_MEMORY             = 140;
         String codeToString(int code) {
             if (DEBUG_MESSAGES) {
                 switch (code) {
@@ -1018,6 +1023,7 @@
                     case SLEEPING: return "SLEEPING";
                     case SET_CORE_SETTINGS: return "SET_CORE_SETTINGS";
                     case UPDATE_PACKAGE_COMPATIBILITY_INFO: return "UPDATE_PACKAGE_COMPATIBILITY_INFO";
+                    case TRIM_MEMORY: return "TRIM_MEMORY";
                 }
             }
             return "(unknown)";
@@ -1158,6 +1164,8 @@
                     break;
                 case UPDATE_PACKAGE_COMPATIBILITY_INFO:
                     handleUpdatePackageCompatibilityInfo((UpdateCompatibilityData)msg.obj);
+                case TRIM_MEMORY:
+                    handleTrimMemory(msg.arg1);
             }
             if (DEBUG_MESSAGES) Slog.v(TAG, "<<< done: " + msg.what);
         }
@@ -3529,6 +3537,9 @@
         BinderInternal.forceGc("mem");
     }
 
+    final void handleTrimMemory(int level) {
+    }
+
     private final void handleBindApplication(AppBindData data) {
         mBoundApplication = data;
         mConfiguration = new Configuration(data.config);