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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
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34 /* This class is used to test multi VM connectivity feature of
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35 * SA/JDI. Accepts two PIDs as arguments. Connects to first VM
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36 *, disposes it, connects to second VM, disposes second VM.
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37 */
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38
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39
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40 public class serialvm {
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41 static AttachingConnector myPIDConn;
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42 static VirtualMachine vm1;
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43 static VirtualMachine vm2;
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44 static VirtualMachineManager vmmgr;
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45
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46 public static void println(String msg) {
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47 System.out.println(msg);
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48 }
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49
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50 private static void usage() {
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51 System.err.println("Usage: java serialvm <pid1> <pid2>");
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52 System.exit(1);
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53 }
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54
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55 public static void main(String args[]) {
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56 vmmgr = Bootstrap.virtualMachineManager();
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57 List attachingConnectors = vmmgr.attachingConnectors();
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58 if (attachingConnectors.isEmpty()) {
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59 System.err.println( "ERROR: No attaching connectors");
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60 return;
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61 }
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62 Iterator myIt = attachingConnectors.iterator();
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63 while (myIt.hasNext()) {
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64 AttachingConnector tmpCon = (AttachingConnector)myIt.next();
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65 if (tmpCon.name().equals(
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66 "sun.jvm.hotspot.jdi.SAPIDAttachingConnector")) {
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67 myPIDConn = tmpCon;
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68 break;
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69 }
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70 }
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71
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72 int pid1 = 0, pid2 = 0;
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73 String pidText = null;
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74 switch (args.length) {
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75 case (2):
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76 try {
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77 pidText = args[0];
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78 pid1 = Integer.parseInt(pidText);
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79 System.out.println( "pid1: " + pid1);
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80 pidText = args[1];
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81 pid2 = Integer.parseInt(pidText);
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82 System.out.println( "pid2: " + 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 // attach, dispose, attach2, dispose2 pattern
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93 // as opposed to attach1, attach2, dispose1, dispose2
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94 vm1 = attachPID(pid1);
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95 if (vm1 != null) {
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96 System.out.println("vm1: attached ok!");
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97 System.out.println(vm1.version());
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98 sagdoit mine = new sagdoit(vm1);
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99 mine.doAll();
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100 }
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101 if (vm1 != null) {
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102 vm1.dispose();
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103 }
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104
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105 vm2 = attachPID(pid2);
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106 if (vm2 != null) {
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107 System.out.println("vm2: attached ok!");
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108 System.out.println(vm2.version());
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109 sagdoit mine = new sagdoit(vm2);
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110 mine.doAll();
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111 }
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112
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113
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114 if (vm2 != null) {
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115 vm2.dispose();
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116 }
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117 }
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118
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119 private static VirtualMachine attachPID(int pid) {
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120 Map connArgs = myPIDConn.defaultArguments();
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121 System.out.println("connArgs = " + connArgs);
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122 VirtualMachine vm;
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123 Connector.StringArgument connArg = (Connector.StringArgument)connArgs.get("pid");
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124 connArg.setValue(Integer.toString(pid));
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125
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126 try {
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127 vm = myPIDConn.attach(connArgs);
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128 } catch (IOException ee) {
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129 System.err.println("ERROR: myPIDConn.attach got IO Exception:" + ee);
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130 vm = null;
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131 } catch (IllegalConnectorArgumentsException ee) {
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132 System.err.println("ERROR: myPIDConn.attach got illegal args exception:" + ee);
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133 vm = null;
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134 }
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135 return vm;
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136 }
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137 }
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