commit 160edb3645f8b7012bab70ae6e6e8c4a5733082b
author Christopher Tate <ctate@google.com> Wed Jun 30 17:46:30 2010 -0700
committer Christopher Tate <ctate@google.com> Wed Jun 30 18:25:01 2010 -0700
tree ea193da79f99a54b59d3a937c5160a8cdf3f8666
parent c6e1d88022db800773401c16803e1ab27fd01a7e

Add ability to guard a thread against setting its own prio to bg

The guard is compiled out by default because it adds overhead to
android.os.Process.setPriority().

Change-Id: Ibb2a648c6349b381abb7ae62a358888b04fba871

services/java/com/android/server/WindowManagerService.java

diff --git a/services/java/com/android/server/WindowManagerService.java b/services/java/com/android/server/WindowManagerService.java
index bf86b23..483f9eb 100644
--- a/services/java/com/android/server/WindowManagerService.java
+++ b/services/java/com/android/server/WindowManagerService.java
@@ -572,6 +572,7 @@
                     mHaveInputMethods);
             android.os.Process.setThreadPriority(
                     android.os.Process.THREAD_PRIORITY_DISPLAY);
+            android.os.Process.setCanSelfBackground(false);
 
             synchronized (this) {
                 mService = s;
@@ -607,6 +608,7 @@
             //        Log.VERBOSE, "WindowManagerPolicy", Log.LOG_ID_SYSTEM));
             android.os.Process.setThreadPriority(
                     android.os.Process.THREAD_PRIORITY_FOREGROUND);
+            android.os.Process.setCanSelfBackground(false);
             mPolicy.init(mContext, mService, mPM);
 
             synchronized (this) {