1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.internal.util; 18 19 import com.android.layoutlib.bridge.impl.DelegateManager; 20 import com.android.tools.layoutlib.annotations.LayoutlibDelegate; 21 22 import android.util.LongSparseLongArray; 23 24 /** 25 * Delegate used to provide new implementation the native methods of {@link VirtualRefBasePtr} 26 * 27 * Through the layoutlib_create tool, the original native methods of VirtualRefBasePtr have been 28 * replaced by calls to methods of the same name in this delegate class. 29 * 30 */ 31 @SuppressWarnings("unused") 32 public class VirtualRefBasePtr_Delegate { 33 private static final DelegateManager<Object> sManager = new DelegateManager<>(Object.class); 34 private static final LongSparseLongArray sRefCount = new LongSparseLongArray(); 35 36 @LayoutlibDelegate nIncStrong(long ptr)37 /*package*/ static synchronized void nIncStrong(long ptr) { 38 long counter = sRefCount.get(ptr); 39 sRefCount.put(ptr, ++counter); 40 } 41 42 @LayoutlibDelegate nDecStrong(long ptr)43 /*package*/ static synchronized void nDecStrong(long ptr) { 44 long counter = sRefCount.get(ptr); 45 46 if (counter > 1) { 47 sRefCount.put(ptr, --counter); 48 } else { 49 sRefCount.delete(ptr); 50 sManager.removeJavaReferenceFor(ptr); 51 } 52 } 53 } 54