stack_trace_element.h revision b0fa5dc7769c1e054032f39de0a3f6d6dd06f8cf 
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 "object_callbacks.h"
22
23namespace art {
24
25template<class T> class SirtRef;
26struct StackTraceElementOffsets;
27
28namespace mirror {
29
30// C++ mirror of java.lang.StackTraceElement
31class MANAGED StackTraceElement : public Object {
32 public:
33  String* GetDeclaringClass() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
34    return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, declaring_class_));
35  }
36
37  String* GetMethodName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
38    return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, method_name_));
39  }
40
41  String* GetFileName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
42    return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, file_name_));
43  }
44
45  int32_t GetLineNumber() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
46    return GetField32(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_));
47  }
48
49  static StackTraceElement* Alloc(Thread* self,
50                                  SirtRef<String>& declaring_class,
51                                  SirtRef<String>& method_name,
52                                  SirtRef<String>& file_name,
53                                  int32_t line_number)
54      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
55
56  static void SetClass(Class* java_lang_StackTraceElement);
57  static void ResetClass();
58  static void VisitRoots(RootCallback* callback, void* arg)
59      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
60
61 private:
62  // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
63  HeapReference<String> declaring_class_;
64  HeapReference<String> file_name_;
65  HeapReference<String> method_name_;
66  int32_t line_number_;
67
68  template<bool kTransactionActive>
69  void Init(SirtRef<String>& declaring_class, SirtRef<String>& method_name,
70            SirtRef<String>& file_name, int32_t line_number)
71      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
72
73  static Class* GetStackTraceElement() {
74    DCHECK(java_lang_StackTraceElement_ != NULL);
75    return java_lang_StackTraceElement_;
76  }
77
78  static Class* java_lang_StackTraceElement_;
79
80  friend struct art::StackTraceElementOffsets;  // for verifying offset information
81  DISALLOW_IMPLICIT_CONSTRUCTORS(StackTraceElement);
82};
83
84}  // namespace mirror
85}  // namespace art
86
87#endif  // ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_
88