Add API to allow app to report ANR by its own

Bug: 140025078
Test: atest CtsAppTestCases:ActivityManagerTest#testAppNotResponding
Change-Id: Iaa57057b18a41a2f934d709b88790625ffcf5478

4 files changed, 39 insertions, 0 deletions

diff --git a/api/current.txt b/api/current.txt
index 39d526344d97..0763c4053b9d 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -3954,6 +3954,7 @@ package android.app {
 
   public class ActivityManager {
     method public int addAppTask(@NonNull android.app.Activity, @NonNull android.content.Intent, @Nullable android.app.ActivityManager.TaskDescription, @NonNull android.graphics.Bitmap);
+    method public void appNotResponding(@NonNull String);
     method public boolean clearApplicationUserData();
     method public void clearWatchHeapLimit();
     method @RequiresPermission(android.Manifest.permission.DUMP) public void dumpPackageState(java.io.FileDescriptor, String);
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 68bdfae218ae..3f9f7fbbe477 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -4547,4 +4547,17 @@ public class ActivityManager {
             throw e.rethrowFromSystemServer();
         }
     }
+
+    /**
+     * Method for the app to tell system that it's wedged and would like to trigger an ANR.
+     *
+     * @param reason The description of that what happened
+     */
+    public void appNotResponding(@NonNull final String reason) {
+        try {
+            getService().appNotResponding(reason);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
 }
diff --git a/core/java/android/app/IActivityManager.aidl b/core/java/android/app/IActivityManager.aidl
index 112bd303a8b3..e8494c4c5893 100644
--- a/core/java/android/app/IActivityManager.aidl
+++ b/core/java/android/app/IActivityManager.aidl
@@ -583,4 +583,9 @@ interface IActivityManager {
      * unlockProgressListener can be null if monitoring progress is not necessary.
      */
     boolean startUserInForegroundWithListener(int userid, IProgressListener unlockProgressListener);
+
+    /**
+     * Method for the app to tell system that it's wedged and would like to trigger an ANR.
+     */
+    void appNotResponding(String reason);
 }
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 1852e01fa9c7..08dd2b0686df 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -7558,6 +7558,26 @@ public class ActivityManagerService extends IActivityManager.Stub
         });
     }
 
+    @Override
+    public void appNotResponding(final String reason) {
+        final int callingPid = Binder.getCallingPid();
+
+        synchronized (mPidsSelfLocked) {
+            final ProcessRecord app = mPidsSelfLocked.get(callingPid);
+            if (app == null) {
+                throw new SecurityException("Unknown process: " + callingPid);
+            }
+
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    app.appNotResponding(
+                            null, app.info, null, null, false, "App requested: " + reason);
+                }
+            });
+        }
+    }
+
     public final void installSystemProviders() {
         List<ProviderInfo> providers;
         synchronized (this) {