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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_RUNTIME_MIRROR_CLASS_EXT_INL_H_
#define ART_RUNTIME_MIRROR_CLASS_EXT_INL_H_
#include "class_ext.h"
#include "array-inl.h"
#include "art_method-inl.h"
#include "handle_scope.h"
#include "object-inl.h"
namespace art {
namespace mirror {
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::EnsureJniIdsArrayPresent(MemberOffset off, size_t count) {
ObjPtr<PointerArray> existing(
GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>(off));
if (!existing.IsNull()) {
return existing;
}
Thread* self = Thread::Current();
StackHandleScope<2> hs(self);
Handle<ClassExt> h_this(hs.NewHandle(this));
Handle<PointerArray> new_arr(
hs.NewHandle(Runtime::Current()->GetClassLinker()->AllocPointerArray(self, count)));
if (new_arr.IsNull()) {
// Fail.
self->AssertPendingOOMException();
return nullptr;
}
bool set;
// Set the ext_data_ field using CAS semantics.
if (Runtime::Current()->IsActiveTransaction()) {
set = h_this->CasFieldObject<true>(
off, nullptr, new_arr.Get(), CASMode::kStrong, std::memory_order_seq_cst);
} else {
set = h_this->CasFieldObject<false>(
off, nullptr, new_arr.Get(), CASMode::kStrong, std::memory_order_seq_cst);
}
ObjPtr<PointerArray> ret(
set ? new_arr.Get()
: h_this->GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>(off));
CHECK(!ret.IsNull());
return ret;
}
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::EnsureJMethodIDsArrayPresent(size_t count) {
return EnsureJniIdsArrayPresent<kVerifyFlags, kReadBarrierOption>(
MemberOffset(OFFSET_OF_OBJECT_MEMBER(ClassExt, jmethod_ids_)), count);
}
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::EnsureStaticJFieldIDsArrayPresent(size_t count) {
return EnsureJniIdsArrayPresent<kVerifyFlags, kReadBarrierOption>(
MemberOffset(OFFSET_OF_OBJECT_MEMBER(ClassExt, static_jfield_ids_)), count);
}
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::EnsureInstanceJFieldIDsArrayPresent(size_t count) {
return EnsureJniIdsArrayPresent<kVerifyFlags, kReadBarrierOption>(
MemberOffset(OFFSET_OF_OBJECT_MEMBER(ClassExt, instance_jfield_ids_)), count);
}
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::GetInstanceJFieldIDs() {
return GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>(
OFFSET_OF_OBJECT_MEMBER(ClassExt, instance_jfield_ids_));
}
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::GetStaticJFieldIDs() {
return GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>(
OFFSET_OF_OBJECT_MEMBER(ClassExt, static_jfield_ids_));
}
template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::GetJMethodIDs() {
return GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>(
OFFSET_OF_OBJECT_MEMBER(ClassExt, jmethod_ids_));
}
inline ObjPtr<Object> ClassExt::GetVerifyError() {
return GetFieldObject<ClassExt>(OFFSET_OF_OBJECT_MEMBER(ClassExt, verify_error_));
}
inline ObjPtr<ObjectArray<DexCache>> ClassExt::GetObsoleteDexCaches() {
return GetFieldObject<ObjectArray<DexCache>>(
OFFSET_OF_OBJECT_MEMBER(ClassExt, obsolete_dex_caches_));
}
template<VerifyObjectFlags kVerifyFlags,
ReadBarrierOption kReadBarrierOption>
inline ObjPtr<PointerArray> ClassExt::GetObsoleteMethods() {
return GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>(
OFFSET_OF_OBJECT_MEMBER(ClassExt, obsolete_methods_));
}
inline ObjPtr<Object> ClassExt::GetOriginalDexFile() {
return GetFieldObject<Object>(OFFSET_OF_OBJECT_MEMBER(ClassExt, original_dex_file_));
}
template<ReadBarrierOption kReadBarrierOption, class Visitor>
void ClassExt::VisitNativeRoots(Visitor& visitor, PointerSize pointer_size) {
ObjPtr<PointerArray> arr(GetObsoleteMethods<kDefaultVerifyFlags, kReadBarrierOption>());
if (arr.IsNull()) {
return;
}
int32_t len = arr->GetLength();
for (int32_t i = 0; i < len; i++) {
ArtMethod* method = arr->GetElementPtrSize<ArtMethod*, kDefaultVerifyFlags>(i, pointer_size);
if (method != nullptr) {
method->VisitRoots<kReadBarrierOption>(visitor, pointer_size);
}
}
}
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_CLASS_EXT_INL_H_
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