2 * Copyright 2017-present Open Networking Foundation
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 package io.atomix.utils.memory;
21 * @author <a href="http://github.com/kuujo">Jordan Halterman</a>
23 public interface Memory {
26 * Returns the memory count.
28 * @return The memory count.
43 * Returns a boolean indicating whether the given count is a power of 2.
45 public static boolean isPow2(int size) {
46 return size > 0 & (size & (size - 1)) == 0;
50 * Rounds the count to the nearest power of two.
52 public static long toPow2(int size) {
53 if ((size & (size - 1)) == 0) {