stack_trace_element.h revision 83c8ee000d525017ead8753fce6bc1020249b96a 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_
18#define ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_
19
20#include "object.h"
21#include "sirt_ref.h"
22
23namespace art {
24
25struct StackTraceElementOffsets;
26
27namespace mirror {
28
29// C++ mirror of java.lang.StackTraceElement
30class MANAGED StackTraceElement : public Object {
31 public:
32  String* GetDeclaringClass() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
33    return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, declaring_class_),
34                                  false);
35  }
36
37  String* GetMethodName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
38    return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, method_name_),
39                                  false);
40  }
41
42  String* GetFileName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
43    return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, file_name_),
44                                  false);
45  }
46
47  int32_t GetLineNumber() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
48    return GetField32(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_), false);
49  }
50
51  static StackTraceElement* Alloc(Thread* self,
52                                  SirtRef<String>& declaring_class,
53                                  SirtRef<String>& method_name,
54                                  SirtRef<String>& file_name,
55                                  int32_t line_number)
56      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
57
58  static void SetClass(Class* java_lang_StackTraceElement);
59  static void ResetClass();
60  static void VisitRoots(RootCallback* callback, void* arg)
61      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
62
63 private:
64  // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
65  HeapReference<String> declaring_class_;
66  HeapReference<String> file_name_;
67  HeapReference<String> method_name_;
68  int32_t line_number_;
69
70  static Class* GetStackTraceElement() {
71    DCHECK(java_lang_StackTraceElement_ != NULL);
72    return java_lang_StackTraceElement_;
73  }
74
75  static Class* java_lang_StackTraceElement_;
76
77  friend struct art::StackTraceElementOffsets;  // for verifying offset information
78  DISALLOW_IMPLICIT_CONSTRUCTORS(StackTraceElement);
79};
80
81}  // namespace mirror
82}  // namespace art
83
84#endif  // ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_
85