Mercurial > hg > truffle
annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/InvocationSocket.java @ 1932:e6500c6c5e24
Removed launch configuration.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
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date | Tue, 21 Dec 2010 17:09:37 +0100 |
parents | 9e5e83ca2259 |
children | 569d3fe7d65c |
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1 /* |
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. |
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3 * |
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product |
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5 * that is described in this document. In particular, and without limitation, these intellectual property |
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6 * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or |
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7 * more additional patents or pending patent applications in the U.S. and in other countries. |
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8 * |
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun |
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10 * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its |
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11 * supplements. |
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12 * |
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13 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or |
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14 * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks |
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15 * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the |
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16 * U.S. and other countries. |
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17 * |
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18 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open |
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19 * Company, Ltd. |
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20 */ |
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21 package com.sun.hotspot.c1x; |
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22 |
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23 import java.io.*; |
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24 import java.lang.reflect.*; |
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25 |
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26 import com.sun.hotspot.c1x.logging.*; |
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27 |
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28 /** |
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29 * A java.lang.reflect proxy that communicates over a socket connection. |
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30 * |
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31 * Calling a method sends the method name and the parameters through the socket. Afterwards this class waits for a result. |
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32 * While waiting for a result three types of objects can arrive through the socket: a method invocation, a method result or an exception. |
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33 * Method invocation can thus be recursive. |
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34 * |
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35 * @author Lukas Stadler |
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36 */ |
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37 public class InvocationSocket implements InvocationHandler { |
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38 |
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39 private final ObjectOutputStream output; |
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40 private final ObjectInputStream input; |
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41 private Object delegate; |
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42 |
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43 public InvocationSocket(ObjectOutputStream output, ObjectInputStream input) { |
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44 this.output = output; |
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45 this.input = input; |
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46 } |
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47 |
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48 public void setDelegate(Object delegate) { |
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49 this.delegate = delegate; |
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50 } |
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51 |
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52 private static class Invocation implements Serializable { |
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53 |
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54 public String methodName; |
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55 public Object[] args; |
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56 |
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57 public Invocation(String methodName, Object[] args) { |
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58 this.methodName = methodName; |
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59 this.args = args; |
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60 } |
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61 } |
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62 |
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63 private static class Result implements Serializable { |
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64 |
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65 public Object result; |
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66 |
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67 public Result(Object result) { |
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68 this.result = result; |
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69 } |
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70 } |
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71 |
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72 @Override |
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73 public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { |
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74 try { |
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75 Logger.startScope("invoking remote " + method.getName()); |
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76 output.writeObject(new Invocation(method.getName(), args)); |
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77 output.flush(); |
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78 return waitForResult(); |
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79 } catch (Throwable t) { |
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80 t.printStackTrace(); |
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81 throw t; |
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82 } finally { |
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83 Logger.endScope(""); |
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84 } |
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85 } |
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86 |
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87 public Object waitForResult() throws IOException, ClassNotFoundException { |
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88 while (true) { |
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89 Object in = input.readObject(); |
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90 if (in instanceof Result) { |
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91 return ((Result) in).result; |
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92 } else if (in instanceof RuntimeException) { |
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93 throw (RuntimeException) in; |
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94 } else if (in instanceof Throwable) { |
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95 throw new RuntimeException((Throwable) in); |
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96 } |
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97 |
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98 Invocation invoke = (Invocation) in; |
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99 Method method = null; |
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100 for (Method m : delegate.getClass().getDeclaredMethods()) { |
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101 if (invoke.methodName.equals(m.getName())) { |
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102 method = m; |
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103 break; |
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104 } |
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105 } |
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106 if (method == null) { |
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107 Exception e = new UnsupportedOperationException("unknown method " + invoke.methodName); |
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108 e.printStackTrace(); |
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109 output.writeObject(e); |
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110 output.flush(); |
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111 } else { |
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112 Object result; |
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113 try { |
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114 Logger.startScope("invoking local " + invoke.methodName); |
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115 if (invoke.args == null) { |
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116 result = method.invoke(delegate); |
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117 } else { |
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118 result = method.invoke(delegate, invoke.args); |
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119 } |
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120 result = new Result(result); |
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121 } catch (IllegalArgumentException e) { |
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122 System.out.println("error while invoking " + invoke.methodName); |
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123 e.getCause().printStackTrace(); |
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124 result = e.getCause(); |
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125 } catch (InvocationTargetException e) { |
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126 System.out.println("error while invoking " + invoke.methodName); |
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127 e.getCause().printStackTrace(); |
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128 result = e.getCause(); |
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129 } catch (IllegalAccessException e) { |
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130 System.out.println("error while invoking " + invoke.methodName); |
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131 e.getCause().printStackTrace(); |
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132 result = e.getCause(); |
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133 } finally { |
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134 Logger.endScope(""); |
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135 } |
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136 output.writeObject(result); |
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137 output.flush(); |
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138 } |
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139 } |
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140 } |
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141 |
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142 } |