1 /*
2  * Copyright (C) 2017 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 #include "call_site.h"
18 
19 #include "class-inl.h"
20 #include "gc_root-inl.h"
21 
22 namespace art {
23 namespace mirror {
24 
25 GcRoot<mirror::Class> CallSite::static_class_;
26 
Create(Thread * const self,Handle<MethodHandle> target)27 mirror::CallSite* CallSite::Create(Thread* const self, Handle<MethodHandle> target) {
28   StackHandleScope<1> hs(self);
29   Handle<mirror::CallSite> cs(
30       hs.NewHandle(ObjPtr<CallSite>::DownCast(StaticClass()->AllocObject(self))));
31   CHECK(!Runtime::Current()->IsActiveTransaction());
32   cs->SetFieldObject<false>(TargetOffset(), target.Get());
33   return cs.Get();
34 }
35 
SetClass(Class * klass)36 void CallSite::SetClass(Class* klass) {
37   CHECK(static_class_.IsNull()) << static_class_.Read() << " " << klass;
38   CHECK(klass != nullptr);
39   static_class_ = GcRoot<Class>(klass);
40 }
41 
ResetClass()42 void CallSite::ResetClass() {
43   CHECK(!static_class_.IsNull());
44   static_class_ = GcRoot<Class>(nullptr);
45 }
46 
VisitRoots(RootVisitor * visitor)47 void CallSite::VisitRoots(RootVisitor* visitor) {
48   static_class_.VisitRootIfNonNull(visitor, RootInfo(kRootStickyClass));
49 }
50 
51 }  // namespace mirror
52 }  // namespace art
53