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 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
