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comparison graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/InstalledCode.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/InstalledCode.java@c9744d2095e0
children
comparison
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21555:d12eaef9af72 21556:48c1ebd24120
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.jvmci.code;
24
25 /**
26 * Represents a compiled instance of a method. It may have been invalidated or removed in the
27 * meantime.
28 */
29 public class InstalledCode {
30
31 /**
32 * Raw address of this code blob.
33 */
34 private long address;
35
36 /**
37 * Counts how often the address field was reassigned.
38 */
39 private long version;
40
41 protected final String name;
42
43 public InstalledCode(String name) {
44 this.name = name;
45 }
46
47 public final void setAddress(long address) {
48 this.address = address;
49 version++;
50 }
51
52 /**
53 * @return the address of this code blob
54 */
55 public final long getAddress() {
56 return address;
57 }
58
59 /**
60 * @return the address of this code blob
61 */
62 public final long getVersion() {
63 return version;
64 }
65
66 /**
67 * Returns the name of this code blob.
68 */
69 public String getName() {
70 return name;
71 }
72
73 /**
74 * Returns the start address of this installed code if it is {@linkplain #isValid() valid}, 0
75 * otherwise.
76 */
77 public long getStart() {
78 return 0;
79 }
80
81 /**
82 * Returns the number of instruction bytes for this code.
83 */
84 public long getCodeSize() {
85 return 0;
86 }
87
88 /**
89 * Returns a copy of this installed code if it is {@linkplain #isValid() valid}, null otherwise.
90 */
91 public byte[] getCode() {
92 return null;
93 }
94
95 /**
96 * @return true if the code represented by this object is still valid, false otherwise (may
97 * happen due to deopt, etc.)
98 */
99 public boolean isValid() {
100 return address != 0;
101 }
102
103 /**
104 * Invalidates this installed code such that any subsequent invocation will throw an
105 * {@link InvalidInstalledCodeException}.
106 */
107 public void invalidate() {
108 throw new UnsupportedOperationException();
109 }
110
111 /**
112 * Executes the installed code with a variable number of arguments.
113 *
114 * @param args the array of object arguments
115 * @return the value returned by the executed code
116 */
117 @SuppressWarnings("unused")
118 public Object executeVarargs(Object... args) throws InvalidInstalledCodeException {
119 throw new UnsupportedOperationException();
120 }
121 }