content: /*
   * Copyright (C) 2014 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.internal.util;
  
  /**
   * Helper class that contains a strong reference to a VirtualRefBase native
   * object. This will incStrong in the ctor, and decStrong in the finalizer
   */
  public final class VirtualRefBasePtr {
      private long mNativePtr;
  
      public VirtualRefBasePtr(long ptr) {
          mNativePtr = ptr;
          nIncStrong(mNativePtr);
      }
  
      public long get() {
          return mNativePtr;
      }
  
      public void release() {
          if (mNativePtr != 0) {
              nDecStrong(mNativePtr);
              mNativePtr = 0;
          }
      }
  
      @Override
      protected void finalize() throws Throwable {
          try {
              release();
          } finally {
              super.finalize();
          }
      }
  
      private static native void nIncStrong(long ptr);
      private static native void nDecStrong(long ptr);
  }
  