Add CPU stats into trace.

Bug: 157601519
Test: adb shell cmd accessibility start-trace -t AccessibilityInteractionClient IAccessibilityInteractionConnectionCallback
      adb shell cmd accessibility stop-trace

Change-Id: I765ff5fc4656f0e6c686407d11a596b4e009a8ca

1 files changed, 13 insertions, 0 deletions

diff --git a/core/java/android/app/ActivityManagerInternal.java b/core/java/android/app/ActivityManagerInternal.java
index 7145c0fe35bf..7c96916c9de1 100644
--- a/core/java/android/app/ActivityManagerInternal.java
+++ b/core/java/android/app/ActivityManagerInternal.java
@@ -36,6 +36,7 @@ import android.os.PowerExemptionManager.TempAllowListType;
 import android.os.TransactionTooLargeException;
 import android.os.WorkSource;
 import android.util.ArraySet;
+import android.util.Pair;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -84,6 +85,18 @@ public abstract class ActivityManagerInternal {
     public static final int ALLOW_ALL_PROFILE_PERMISSIONS_IN_PROFILE = 3;
 
     /**
+     * Returns profile information in free form string in two separate strings.
+     * See AppProfiler for the output format.
+     * The output can only be used for human consumption. The format may change
+     * in the future.
+     * Do not call it frequently.
+     * @param time uptime for the cpu state
+     * @param lines lines of the cpu state should be returned
+     * @return a pair of Strings. The first is the current cpu load, the second is the cpu state.
+     */
+    public abstract Pair<String, String> getAppProfileStatsForDebugging(long time, int lines);
+
+    /**
      * Verify that calling app has access to the given provider.
      */
     public abstract String checkContentProviderAccess(String authority, @UserIdInt int userId);