74 lines
2.2 KiB
Java
74 lines
2.2 KiB
Java
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.internal.widget;
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import android.util.Log;
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import android.util.Pools;
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import android.view.View;
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/**
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* A trivial wrapper around Pools.SynchronizedPool which allows clearing the pool, as well as
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* disabling the pool class altogether.
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* @param <T> the type of object in the pool
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*/
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public class MessagingPool<T extends View> implements Pools.Pool<T> {
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private static final boolean ENABLED = false; // disabled to test b/208508846
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private static final String TAG = "MessagingPool";
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private final int mMaxPoolSize;
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private Pools.SynchronizedPool<T> mCurrentPool;
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public MessagingPool(int maxPoolSize) {
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mMaxPoolSize = maxPoolSize;
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if (ENABLED) {
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mCurrentPool = new Pools.SynchronizedPool<>(mMaxPoolSize);
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}
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}
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@Override
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public T acquire() {
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if (!ENABLED) {
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return null;
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}
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T instance = mCurrentPool.acquire();
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if (instance.getParent() != null) {
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Log.wtf(TAG, "acquired " + instance + " with parent " + instance.getParent());
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return null;
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}
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return instance;
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}
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@Override
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public boolean release(T instance) {
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if (instance.getParent() != null) {
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Log.wtf(TAG, "releasing " + instance + " with parent " + instance.getParent());
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return false;
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}
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if (!ENABLED) {
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return false;
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}
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return mCurrentPool.release(instance);
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}
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/** Clear the pool */
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public void clear() {
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if (ENABLED) {
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mCurrentPool = new Pools.SynchronizedPool<>(mMaxPoolSize);
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}
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}
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}
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