/*
|
* Copyright (C) 2019 The Android Open Source Project
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*/
|
|
package com.android.server.wm;
|
|
import static android.app.ActivityManager.PROCESS_STATE_NONEXISTENT;
|
|
import android.util.SparseIntArray;
|
|
/**
|
* This is a partial mirror of {@link @com.android.server.am.ActiveUids}. It is already thread
|
* safe so the heavy service lock is not needed when updating state from activity manager (oom
|
* adjustment) or getting state from window manager (background start check).
|
*/
|
class MirrorActiveUids {
|
private SparseIntArray mUidStates = new SparseIntArray();
|
|
synchronized void onUidActive(int uid, int procState) {
|
mUidStates.put(uid, procState);
|
}
|
|
synchronized void onUidInactive(int uid) {
|
mUidStates.delete(uid);
|
}
|
|
synchronized void onActiveUidsCleared() {
|
mUidStates.clear();
|
}
|
|
synchronized void onUidProcStateChanged(int uid, int procState) {
|
final int index = mUidStates.indexOfKey(uid);
|
if (index >= 0) {
|
mUidStates.setValueAt(index, procState);
|
}
|
}
|
|
synchronized int getUidState(int uid) {
|
return mUidStates.get(uid, PROCESS_STATE_NONEXISTENT);
|
}
|
}
|
