1/*
2 * Copyright (C) 2013 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_NATIVE_SCOPED_FAST_NATIVE_OBJECT_ACCESS_H_
18#define ART_RUNTIME_NATIVE_SCOPED_FAST_NATIVE_OBJECT_ACCESS_H_
19
20#include <jni.h>
21
22#include "scoped_thread_state_change.h"
23
24namespace art {
25
26// Variant of ScopedObjectAccess that does no runnable transitions. Should only be used by "fast"
27// JNI methods.
28class ScopedFastNativeObjectAccess : public ScopedObjectAccessAlreadyRunnable {
29 public:
30  ALWAYS_INLINE explicit ScopedFastNativeObjectAccess(JNIEnv* env)
31    REQUIRES(!Locks::thread_suspend_count_lock_)
32    SHARED_LOCK_FUNCTION(Locks::mutator_lock_);
33
34  ALWAYS_INLINE ~ScopedFastNativeObjectAccess() UNLOCK_FUNCTION(Locks::mutator_lock_) {}
35
36 private:
37  DISALLOW_COPY_AND_ASSIGN(ScopedFastNativeObjectAccess);
38};
39
40}  // namespace art
41
42#endif  // ART_RUNTIME_NATIVE_SCOPED_FAST_NATIVE_OBJECT_ACCESS_H_
43