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 #ifndef ART_RUNTIME_NATIVE_NATIVE_UTIL_H_
18 #define ART_RUNTIME_NATIVE_NATIVE_UTIL_H_
19
20 #include <jni.h>
21
22 #include "android-base/logging.h"
23 #include "base/macros.h"
24 #include "nativehelper/scoped_local_ref.h"
25
26 namespace art {
27
RegisterNativeMethodsInternal(JNIEnv * env,const char * jni_class_name,const JNINativeMethod * methods,jint method_count)28 ALWAYS_INLINE inline void RegisterNativeMethodsInternal(JNIEnv* env,
29 const char* jni_class_name,
30 const JNINativeMethod* methods,
31 jint method_count) {
32 ScopedLocalRef<jclass> c(env, env->FindClass(jni_class_name));
33 if (c.get() == nullptr) {
34 LOG(FATAL) << "Couldn't find class: " << jni_class_name;
35 }
36 jint jni_result = env->RegisterNatives(c.get(), methods, method_count);
37 CHECK_EQ(JNI_OK, jni_result);
38 }
39
40 #define REGISTER_NATIVE_METHODS(jni_class_name) \
41 RegisterNativeMethodsInternal(env, (jni_class_name), gMethods, arraysize(gMethods))
42
43 } // namespace art
44
45 #endif // ART_RUNTIME_NATIVE_NATIVE_UTIL_H_
46