Start implementing concept of "running" users.
The activity manager now keeps track of which users are running.
Initially, only user 0 is running.
When you switch to another user, that user is started so it is
running. It is only at this point that BOOT_COMPLETED is sent
for that user and it is allowed to execute anything.
You can stop any user except user 0, which brings it back to the
same state as when you first boot the device. This is also used
to be able to more cleaning delete a user, by first stopping it
before removing its data.
There is a new broadcast ACTION_USER_STOPPED sent when a user is
stopped; system services need to handle this like they currently
handle ACTION_PACKAGE_RESTARTED when individual packages are
restarted.
Change-Id: I89adbd7cbaf4a0bb72ea201385f93477f40a4119
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index adc9434..05c009f 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -1570,6 +1570,17 @@
return true;
}
+ case STOP_USER_TRANSACTION: {
+ data.enforceInterface(IActivityManager.descriptor);
+ int userid = data.readInt();
+ IStopUserCallback callback = IStopUserCallback.Stub.asInterface(
+ data.readStrongBinder());
+ int result = stopUser(userid, callback);
+ reply.writeNoException();
+ reply.writeInt(result);
+ return true;
+ }
+
case GET_CURRENT_USER_TRANSACTION: {
data.enforceInterface(IActivityManager.descriptor);
UserInfo userInfo = getCurrentUser();
@@ -3756,11 +3767,25 @@
return result;
}
+ public int stopUser(int userid, IStopUserCallback callback) throws RemoteException {
+ Parcel data = Parcel.obtain();
+ Parcel reply = Parcel.obtain();
+ data.writeInterfaceToken(IActivityManager.descriptor);
+ data.writeInt(userid);
+ data.writeStrongInterface(callback);
+ mRemote.transact(STOP_USER_TRANSACTION, data, reply, 0);
+ reply.readException();
+ int result = reply.readInt();
+ reply.recycle();
+ data.recycle();
+ return result;
+ }
+
public UserInfo getCurrentUser() throws RemoteException {
Parcel data = Parcel.obtain();
Parcel reply = Parcel.obtain();
data.writeInterfaceToken(IActivityManager.descriptor);
- mRemote.transact(SWITCH_USER_TRANSACTION, data, reply, 0);
+ mRemote.transact(GET_CURRENT_USER_TRANSACTION, data, reply, 0);
reply.readException();
UserInfo userInfo = UserInfo.CREATOR.createFromParcel(reply);
reply.recycle();