1 /* 2 * Copyright (C) 2014 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.camera.one.v2.sharedimagereader.imagedistributor; 18 19 import java.util.concurrent.atomic.AtomicBoolean; 20 import java.util.concurrent.atomic.AtomicInteger; 21 22 import com.android.camera.one.v2.camera2proxy.ForwardingImageProxy; 23 import com.android.camera.one.v2.camera2proxy.ImageProxy; 24 25 /** 26 * Wraps {@link ImageProxy} to filter out multiple calls to {@link #close}. 27 */ 28 class SingleCloseImageProxy extends ForwardingImageProxy { 29 private final AtomicBoolean mClosed; 30 31 /** 32 * @param image The image to wrap 33 */ 34 public SingleCloseImageProxy(ImageProxy image) { 35 super(image); 36 mClosed = new AtomicBoolean(false); 37 } 38 39 @Override 40 public void close() { 41 if (!mClosed.getAndSet(true)) { 42 super.close(); 43 } 44 } 45 } 46
