Showing the changes to java/pkg/sun/management/MemoryManagerImpl.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,95 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2003, 2011, 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. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package sun.management; | ||
| 27 | |||
| 28 | import java.lang.management.ManagementFactory; | ||
| 29 | import java.lang.management.MemoryManagerMXBean; | ||
| 30 | import java.lang.management.MemoryPoolMXBean; | ||
| 31 | |||
| 32 | import javax.management.MBeanNotificationInfo; | ||
| 33 | import javax.management.ObjectName; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * Implementation class for a memory manager. | ||
| 37 | * Standard and committed hotspot-specific metrics if any. | ||
| 38 | * | ||
| 39 | * ManagementFactory.getMemoryManagerMXBeans() returns a list | ||
| 40 | * of instances of this class. | ||
| 41 | */ | ||
| 42 | class MemoryManagerImpl extends NotificationEmitterSupport | ||
| 43 | implements MemoryManagerMXBean { | ||
| 44 | |||
| 45 | private final String name; | ||
| 46 | private final boolean isValid; | ||
| 47 | private MemoryPoolMXBean[] pools; | ||
| 48 | |||
| 49 | MemoryManagerImpl(String name) { | ||
| 50 | this.name = name; | ||
| 51 | this.isValid = true; | ||
| 52 | this.pools = null; | ||
| 53 | } | ||
| 54 | |||
| 55 | public String getName() { | ||
| 56 | return name; | ||
| 57 | } | ||
| 58 | |||
| 59 | public boolean isValid() { | ||
| 60 | return isValid; | ||
| 61 | } | ||
| 62 | |||
| 63 | public String[] getMemoryPoolNames() { | ||
| 64 | MemoryPoolMXBean[] ps = getMemoryPools(); | ||
| 65 | |||
| 66 | String[] names = new String[ps.length]; | ||
| 67 | for (int i = 0; i < ps.length; i++) { | ||
| 68 | names[i] = ps[i].getName(); | ||
| 69 | } | ||
| 70 | return names; | ||
| 71 | } | ||
| 72 | |||
| 73 | synchronized MemoryPoolMXBean[] getMemoryPools() { | ||
| 74 | if (pools == null) { | ||
| 75 | pools = getMemoryPools0(); | ||
| 76 | } | ||
| 77 | return pools; | ||
| 78 | } | ||
| 79 | private native MemoryPoolMXBean[] getMemoryPools0(); | ||
| 80 | |||
| 81 | private MBeanNotificationInfo[] notifInfo = null; | ||
| 82 | public MBeanNotificationInfo[] getNotificationInfo() { | ||
| 83 | synchronized (this) { | ||
| 84 | if(notifInfo == null) { | ||
| 85 | notifInfo = new MBeanNotificationInfo[0]; | ||
| 86 | } | ||
| 87 | } | ||
| 88 | return notifInfo; | ||
| 89 | } | ||
| 90 | |||
| 91 | public ObjectName getObjectName() { | ||
| 92 | return Util.newObjectName(ManagementFactory.MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE, getName()); | ||
| 93 | } | ||
| 94 | |||
| 95 | } | ||