1 /* 2 * Copyright (C) 2011 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.contacts.common.util; 18 19 import com.android.internal.util.MemInfoReader; 20 21 public final class MemoryUtils { 22 private MemoryUtils() { 23 } 24 25 private static long sTotalMemorySize = -1; 26 27 public static long getTotalMemorySize() { 28 if (sTotalMemorySize < 0) { 29 MemInfoReader reader = new MemInfoReader(); 30 reader.readMemInfo(); 31 32 // getTotalSize() returns the "MemTotal" value from /proc/meminfo. 33 // Because the linux kernel doesn't see all the RAM on the system (e.g. GPU takes some), 34 // this is usually smaller than the actual RAM size. 35 sTotalMemorySize = reader.getTotalSize(); 36 } 37 return sTotalMemorySize; 38 } 39 } 40
