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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/Truffle.java @ 16779:e52ad0d3b7d6

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put some security sensitive actions into a privileged action
author Doug Simon <doug.simon@oracle.com>
date Tue, 12 Aug 2014 00:08:19 +0200
parents b7fb36e57da8
children afa70d3e8159
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16778:8a05a498ab76 16779:e52ad0d3b7d6
22 * or visit www.oracle.com if you need additional information or have any 22 * or visit www.oracle.com if you need additional information or have any
23 * questions. 23 * questions.
24 */ 24 */
25 package com.oracle.truffle.api; 25 package com.oracle.truffle.api;
26 26
27 import java.security.*;
28
27 import com.oracle.truffle.api.impl.*; 29 import com.oracle.truffle.api.impl.*;
28 30
29 /** 31 /**
30 * Class for obtaining the Truffle runtime singleton object of this virtual machine. 32 * Class for obtaining the Truffle runtime singleton object of this virtual machine.
31 */ 33 */
32 public class Truffle { 34 public class Truffle {
33 35
34 private static final TruffleRuntime RUNTIME; 36 private static final TruffleRuntime RUNTIME = initRuntime();
35 37
36 /** 38 /**
37 * Creates a new {@link TruffleRuntime} instance if the runtime has a specialized 39 * Creates a new {@link TruffleRuntime} instance if the runtime has a specialized
38 * implementation. 40 * implementation.
39 * 41 *
44 46
45 public static TruffleRuntime getRuntime() { 47 public static TruffleRuntime getRuntime() {
46 return RUNTIME; 48 return RUNTIME;
47 } 49 }
48 50
49 static { 51 private static TruffleRuntime initRuntime() {
50 TruffleRuntime runtime;
51 try { 52 try {
52 runtime = createRuntime(); 53 return AccessController.doPrivileged(new PrivilegedAction<TruffleRuntime>() {
54 public TruffleRuntime run() {
55 return createRuntime();
56 }
57 });
53 } catch (UnsatisfiedLinkError e) { 58 } catch (UnsatisfiedLinkError e) {
54 runtime = new DefaultTruffleRuntime(); 59 return new DefaultTruffleRuntime();
55 } 60 }
56 RUNTIME = runtime;
57 } 61 }
58 } 62 }