1 /*
2  * Copyright (C) 2008 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 "java_util_concurrent_atomic_AtomicLong.h"
18 
19 #include "nativehelper/jni_macros.h"
20 
21 #include "arch/instruction_set.h"
22 #include "base/atomic.h"
23 #include "base/quasi_atomic.h"
24 #include "jni_internal.h"
25 #include "native_util.h"
26 
27 namespace art {
28 
AtomicLong_VMSupportsCS8(JNIEnv *,jclass)29 static jboolean AtomicLong_VMSupportsCS8(JNIEnv*, jclass) {
30   return QuasiAtomic::LongAtomicsUseMutexes(kRuntimeISA) ? JNI_FALSE : JNI_TRUE;
31 }
32 
33 static JNINativeMethod gMethods[] = {
34   NATIVE_METHOD(AtomicLong, VMSupportsCS8, "()Z"),
35 };
36 
register_java_util_concurrent_atomic_AtomicLong(JNIEnv * env)37 void register_java_util_concurrent_atomic_AtomicLong(JNIEnv* env) {
38   REGISTER_NATIVE_METHODS("java/util/concurrent/atomic/AtomicLong");
39 }
40 
41 }  // namespace art
42