1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package sun.hotspot.code; 25 26 import java.lang.management.ManagementFactory; 27 import java.lang.management.MemoryPoolMXBean; 28 import java.util.EnumSet; 29 30 import sun.hotspot.WhiteBox; 31 32 public enum BlobType { 33 // All types (No code cache segmentation) 34 All(0, "CodeCache", "Code Cache", "ReservedCodeCacheSize"); 35 36 public final int id; 37 public final String sizeOptionName; 38 public final String beanName; 39 public final String name; 40 41 private BlobType(int id, String name, String beanName, String sizeOptionName) { 42 this.id = id; 43 this.name = name; 44 this.beanName = beanName; 45 this.sizeOptionName = sizeOptionName; 46 } 47 48 public MemoryPoolMXBean getMemoryPool() { 49 for (MemoryPoolMXBean bean : ManagementFactory.getMemoryPoolMXBeans()) { 50 String name = bean.getName(); 51 if (beanName.equals(name)) { 52 return bean; 53 } 54 } 55 return null; 56 } 57 58 public boolean allowTypeWhenOverflow(BlobType type) { 59 return type == this; 60 } 61 62 public static EnumSet<BlobType> getAvailable() { 63 return EnumSet.of(All); 64 } 65 66 public long getSize() { 67 return WhiteBox.getWhiteBox().getUintxVMFlag(sizeOptionName); 68 } 69 }