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_CLASS_ALLOC_INL_H_
18 #define ART_RUNTIME_MIRROR_CLASS_ALLOC_INL_H_
19
20 #include "class-inl.h"
21
22 #include "gc/heap-inl.h"
23 #include "object-inl.h"
24 #include "runtime.h"
25
26 namespace art {
27 namespace mirror {
28
CheckObjectAlloc()29 inline void Class::CheckObjectAlloc() {
30 DCHECK(!IsArrayClass())
31 << PrettyClass()
32 << "A array shouldn't be allocated through this "
33 << "as it requires a pre-fence visitor that sets the class size.";
34 DCHECK(!IsClassClass())
35 << PrettyClass()
36 << "A class object shouldn't be allocated through this "
37 << "as it requires a pre-fence visitor that sets the class size.";
38 DCHECK(!IsStringClass())
39 << PrettyClass()
40 << "A string shouldn't be allocated through this "
41 << "as it requires a pre-fence visitor that sets the class size.";
42 DCHECK(IsInstantiable()) << PrettyClass();
43 // TODO: decide whether we want this check. It currently fails during bootstrap.
44 // DCHECK(!Runtime::Current()->IsStarted() || IsInitializing()) << PrettyClass();
45 DCHECK_GE(this->object_size_, sizeof(Object));
46 }
47
48 template<bool kIsInstrumented, bool kCheckAddFinalizer>
Alloc(Thread * self,gc::AllocatorType allocator_type)49 inline ObjPtr<Object> Class::Alloc(Thread* self, gc::AllocatorType allocator_type) {
50 CheckObjectAlloc();
51 gc::Heap* heap = Runtime::Current()->GetHeap();
52 const bool add_finalizer = kCheckAddFinalizer && IsFinalizable();
53 if (!kCheckAddFinalizer) {
54 DCHECK(!IsFinalizable());
55 }
56 // Note that the this pointer may be invalidated after the allocation.
57 ObjPtr<Object> obj =
58 heap->AllocObjectWithAllocator<kIsInstrumented, false>(self,
59 this,
60 this->object_size_,
61 allocator_type,
62 VoidFunctor());
63 if (add_finalizer && LIKELY(obj != nullptr)) {
64 heap->AddFinalizerReference(self, &obj);
65 if (UNLIKELY(self->IsExceptionPending())) {
66 // Failed to allocate finalizer reference, it means that the whole allocation failed.
67 obj = nullptr;
68 }
69 }
70 return obj;
71 }
72
AllocObject(Thread * self)73 inline ObjPtr<Object> Class::AllocObject(Thread* self) {
74 return Alloc<true>(self, Runtime::Current()->GetHeap()->GetCurrentAllocator());
75 }
76
AllocNonMovableObject(Thread * self)77 inline ObjPtr<Object> Class::AllocNonMovableObject(Thread* self) {
78 return Alloc<true>(self, Runtime::Current()->GetHeap()->GetCurrentNonMovingAllocator());
79 }
80
81 } // namespace mirror
82 } // namespace art
83
84 #endif // ART_RUNTIME_MIRROR_CLASS_ALLOC_INL_H_
85