1 /* 2 * Copyright (c) 2005, 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 package sun.tools.attach; 26 27 import com.sun.tools.attach.VirtualMachine; 28 import com.sun.tools.attach.VirtualMachineDescriptor; 29 import com.sun.tools.attach.AttachNotSupportedException; 30 import com.sun.tools.attach.spi.AttachProvider; 31 32 import java.io.IOException; 33 34 /* 35 * An AttachProvider implementation for Linux that uses a UNIX domain 36 * socket. 37 */ 38 public class LinuxAttachProvider extends HotSpotAttachProvider { 39 40 // perf counter for the JVM version 41 private static final String JVM_VERSION = "java.property.java.vm.version"; 42 LinuxAttachProvider()43 public LinuxAttachProvider() { 44 } 45 name()46 public String name() { 47 return "sun"; 48 } 49 type()50 public String type() { 51 return "socket"; 52 } 53 attachVirtualMachine(String vmid)54 public VirtualMachine attachVirtualMachine(String vmid) 55 throws AttachNotSupportedException, IOException 56 { 57 checkAttachPermission(); 58 59 // AttachNotSupportedException will be thrown if the target VM can be determined 60 // to be not attachable. 61 testAttachable(vmid); 62 63 return new LinuxVirtualMachine(this, vmid); 64 } 65 attachVirtualMachine(VirtualMachineDescriptor vmd)66 public VirtualMachine attachVirtualMachine(VirtualMachineDescriptor vmd) 67 throws AttachNotSupportedException, IOException 68 { 69 if (vmd.provider() != this) { 70 throw new AttachNotSupportedException("provider mismatch"); 71 } 72 // To avoid re-checking if the VM if attachable, we check if the descriptor 73 // is for a hotspot VM - these descriptors are created by the listVirtualMachines 74 // implementation which only returns a list of attachable VMs. 75 if (vmd instanceof HotSpotVirtualMachineDescriptor) { 76 assert ((HotSpotVirtualMachineDescriptor)vmd).isAttachable(); 77 checkAttachPermission(); 78 return new LinuxVirtualMachine(this, vmd.id()); 79 } else { 80 return attachVirtualMachine(vmd.id()); 81 } 82 } 83 84 } 85