| /* |
| * 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.sched.util.log.stats; |
| |
| import com.google.common.collect.Iterators; |
| |
| import com.android.sched.util.table.DataHeader; |
| import com.android.sched.util.table.DataRow; |
| |
| import java.util.Iterator; |
| |
| import javax.annotation.Nonnegative; |
| import javax.annotation.Nonnull; |
| |
| /** |
| * Represents a statistic on object allocation. |
| */ |
| public class AllocImpl extends Alloc implements DataRow, DataHeader { |
| @Nonnegative |
| private long number; |
| @Nonnegative |
| private long size = 0; |
| |
| protected AllocImpl(@Nonnull StatisticId<? extends Statistic> id) { |
| super(id); |
| } |
| |
| /** |
| * Record an object allocation. |
| * |
| * @param size size in bytes of object in memory. |
| */ |
| @Override |
| public synchronized void recordAllocation(@Nonnegative long size) { |
| this.number++; |
| this.size += size; |
| } |
| |
| @Override |
| public synchronized void merge(@Nonnull Statistic statistic) { |
| AllocImpl stat = (AllocImpl) statistic; |
| |
| synchronized (stat) { |
| this.number += stat.number; |
| this.size += stat.size; |
| } |
| } |
| |
| @Override |
| @Nonnull |
| public synchronized Iterator<Object> iterator() { |
| return Iterators.<Object> forArray( |
| Long.valueOf(number), |
| Long.valueOf(size)); |
| } |
| } |