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1 /*
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2 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 import com.sun.jdi.*;
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26 import com.sun.jdi.connect.*;
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27
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28 import java.util.Map;
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29 import java.util.List;
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30 import java.util.Iterator;
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31 import java.io.IOException;
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32
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33 /* This class is used to test multi VM connectivity feature of
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34 * SA/JDI. Accepts two PIDs as arguments. Connects to first VM
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35 *, Connects to second VM and disposes them in that order.
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36 */
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37
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38 public class multivm {
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39 static AttachingConnector myPIDConn;
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40 static VirtualMachine vm1;
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41 static VirtualMachine vm2;
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42 static VirtualMachineManager vmmgr;
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43
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44 public static void println(String msg) {
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45 System.out.println(msg);
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46 }
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47
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48 private static void usage() {
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49 System.err.println("Usage: java multivm <pid1> <pid2>");
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50 System.exit(1);
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51 }
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52
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53 public static void main(String args[]) {
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54 vmmgr = Bootstrap.virtualMachineManager();
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55 List attachingConnectors = vmmgr.attachingConnectors();
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56 if (attachingConnectors.isEmpty()) {
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57 System.err.println( "ERROR: No attaching connectors");
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58 return;
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59 }
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60 Iterator myIt = attachingConnectors.iterator();
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61 while (myIt.hasNext()) {
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62 AttachingConnector tmpCon = (AttachingConnector)myIt.next();
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63 if (tmpCon.name().equals(
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64 "sun.jvm.hotspot.jdi.SAPIDAttachingConnector")) {
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65 myPIDConn = tmpCon;
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66 break;
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67 }
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68 }
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69
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70 int pid1 = 0, pid2 = 0;
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71 String pidText = null;
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72 switch (args.length) {
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73 case (2):
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74 try {
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75 pidText = args[0];
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76 pid1 = Integer.parseInt(pidText);
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77 System.out.println( "pid1: " + pid1);
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78 vm1 = attachPID(pid1);
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79 pidText = args[1];
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80 pid2 = Integer.parseInt(pidText);
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81 System.out.println( "pid2: " + pid2);
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82 vm2 = attachPID(pid2);
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83 } catch (NumberFormatException e) {
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84 println(e.getMessage());
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85 usage();
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86 }
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87 break;
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88 default:
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89 usage();
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90 }
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91
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92 if (vm1 != null) {
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93 System.out.println("vm1: attached ok!");
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94 System.out.println(vm1.version());
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95 sagdoit mine = new sagdoit(vm1);
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96 mine.doAll();
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97 }
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98
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99 if (vm2 != null) {
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100 System.out.println("vm2: attached ok!");
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101 System.out.println(vm2.version());
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102 sagdoit mine = new sagdoit(vm2);
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103 mine.doAll();
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104 }
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105
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106 if (vm1 != null) {
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107 vm1.dispose();
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108 }
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109
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110 if (vm2 != null) {
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111 vm2.dispose();
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112 }
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113 }
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114
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115 private static VirtualMachine attachPID(int pid) {
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116 Map connArgs = myPIDConn.defaultArguments();
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117 System.out.println("connArgs = " + connArgs);
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118 VirtualMachine vm;
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119 Connector.StringArgument connArg = (Connector.StringArgument)connArgs.get("pid");
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120 connArg.setValue(Integer.toString(pid));
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121
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122 try {
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123 vm = myPIDConn.attach(connArgs);
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124 } catch (IOException ee) {
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125 System.err.println("ERROR: myPIDConn.attach got IO Exception:" + ee);
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126 vm = null;
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127 } catch (IllegalConnectorArgumentsException ee) {
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128 System.err.println("ERROR: myPIDConn.attach got illegal args exception:" + ee);
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129 vm = null;
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130 }
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131 return vm;
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132 }
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133 }
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