ti_object.cc revision 06c42a571358b5e5adb69104b183af8f32f4c07d 
1/* Copyright (C) 2017 The Android Open Source Project
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This file implements interfaces from the file jvmti.h. This implementation
5 * is licensed under the same terms as the file jvmti.h.  The
6 * copyright and license information for the file jvmti.h follows.
7 *
8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
10 *
11 * This code is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 only, as
13 * published by the Free Software Foundation.  Oracle designates this
14 * particular file as subject to the "Classpath" exception as provided
15 * by Oracle in the LICENSE file that accompanied this code.
16 *
17 * This code is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
20 * version 2 for more details (a copy is included in the LICENSE file that
21 * accompanied this code).
22 *
23 * You should have received a copy of the GNU General Public License version
24 * 2 along with this work; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
26 *
27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
28 * or visit www.oracle.com if you need additional information or have any
29 * questions.
30 */
31
32#include "ti_object.h"
33
34#include "art_jvmti.h"
35#include "mirror/object-inl.h"
36#include "scoped_thread_state_change-inl.h"
37#include "thread-current-inl.h"
38
39namespace openjdkjvmti {
40
41jvmtiError ObjectUtil::GetObjectSize(jvmtiEnv* env ATTRIBUTE_UNUSED,
42                                     jobject jobject,
43                                     jlong* size_ptr) {
44  if (jobject == nullptr) {
45    return ERR(INVALID_OBJECT);
46  }
47  if (size_ptr == nullptr) {
48    return ERR(NULL_POINTER);
49  }
50
51  art::ScopedObjectAccess soa(art::Thread::Current());
52  art::ObjPtr<art::mirror::Object> object = soa.Decode<art::mirror::Object>(jobject);
53
54  *size_ptr = object->SizeOf();
55  return ERR(NONE);
56}
57
58jvmtiError ObjectUtil::GetObjectHashCode(jvmtiEnv* env ATTRIBUTE_UNUSED,
59                                         jobject jobject,
60                                         jint* hash_code_ptr) {
61  if (jobject == nullptr) {
62    return ERR(INVALID_OBJECT);
63  }
64  if (hash_code_ptr == nullptr) {
65    return ERR(NULL_POINTER);
66  }
67
68  art::ScopedObjectAccess soa(art::Thread::Current());
69  art::ObjPtr<art::mirror::Object> object = soa.Decode<art::mirror::Object>(jobject);
70
71  *hash_code_ptr = object->IdentityHashCode();
72
73  return ERR(NONE);
74}
75
76}  // namespace openjdkjvmti
77