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comparison agent/test/jdi/multivm.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 import com.sun.jdi.*;
26 import com.sun.jdi.connect.*;
27
28 import java.util.Map;
29 import java.util.List;
30 import java.util.Iterator;
31 import java.io.IOException;
32
33 /* This class is used to test multi VM connectivity feature of
34 * SA/JDI. Accepts two PIDs as arguments. Connects to first VM
35 *, Connects to second VM and disposes them in that order.
36 */
37
38 public class multivm {
39 static AttachingConnector myPIDConn;
40 static VirtualMachine vm1;
41 static VirtualMachine vm2;
42 static VirtualMachineManager vmmgr;
43
44 public static void println(String msg) {
45 System.out.println(msg);
46 }
47
48 private static void usage() {
49 System.err.println("Usage: java multivm <pid1> <pid2>");
50 System.exit(1);
51 }
52
53 public static void main(String args[]) {
54 vmmgr = Bootstrap.virtualMachineManager();
55 List attachingConnectors = vmmgr.attachingConnectors();
56 if (attachingConnectors.isEmpty()) {
57 System.err.println( "ERROR: No attaching connectors");
58 return;
59 }
60 Iterator myIt = attachingConnectors.iterator();
61 while (myIt.hasNext()) {
62 AttachingConnector tmpCon = (AttachingConnector)myIt.next();
63 if (tmpCon.name().equals(
64 "sun.jvm.hotspot.jdi.SAPIDAttachingConnector")) {
65 myPIDConn = tmpCon;
66 break;
67 }
68 }
69
70 int pid1 = 0, pid2 = 0;
71 String pidText = null;
72 switch (args.length) {
73 case (2):
74 try {
75 pidText = args[0];
76 pid1 = Integer.parseInt(pidText);
77 System.out.println( "pid1: " + pid1);
78 vm1 = attachPID(pid1);
79 pidText = args[1];
80 pid2 = Integer.parseInt(pidText);
81 System.out.println( "pid2: " + pid2);
82 vm2 = attachPID(pid2);
83 } catch (NumberFormatException e) {
84 println(e.getMessage());
85 usage();
86 }
87 break;
88 default:
89 usage();
90 }
91
92 if (vm1 != null) {
93 System.out.println("vm1: attached ok!");
94 System.out.println(vm1.version());
95 sagdoit mine = new sagdoit(vm1);
96 mine.doAll();
97 }
98
99 if (vm2 != null) {
100 System.out.println("vm2: attached ok!");
101 System.out.println(vm2.version());
102 sagdoit mine = new sagdoit(vm2);
103 mine.doAll();
104 }
105
106 if (vm1 != null) {
107 vm1.dispose();
108 }
109
110 if (vm2 != null) {
111 vm2.dispose();
112 }
113 }
114
115 private static VirtualMachine attachPID(int pid) {
116 Map connArgs = myPIDConn.defaultArguments();
117 System.out.println("connArgs = " + connArgs);
118 VirtualMachine vm;
119 Connector.StringArgument connArg = (Connector.StringArgument)connArgs.get("pid");
120 connArg.setValue(Integer.toString(pid));
121
122 try {
123 vm = myPIDConn.attach(connArgs);
124 } catch (IOException ee) {
125 System.err.println("ERROR: myPIDConn.attach got IO Exception:" + ee);
126 vm = null;
127 } catch (IllegalConnectorArgumentsException ee) {
128 System.err.println("ERROR: myPIDConn.attach got illegal args exception:" + ee);
129 vm = null;
130 }
131 return vm;
132 }
133 }