1 /* 2 * Copyright (C) 2007 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 /** JNI utils for nativehelper-internal use. */ 18 19 #ifndef SRC_ANDROID_SDK_NATIVEHELPER_NATIVEHELPER_UTILS_H_ 20 #define SRC_ANDROID_SDK_NATIVEHELPER_NATIVEHELPER_UTILS_H_ 21 22 // Copied from 23 // https://cs.android.com/android/platform/superproject/main/+/main:libnativehelper/header_only_include/nativehelper/nativehelper_utils.h;drc=4be05051ef76b2c24d8385732a892401eb45d911 24 25 #include <jni.h> 26 27 #if defined(__cplusplus) 28 29 #if !defined(DISALLOW_COPY_AND_ASSIGN) 30 // DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions. It goes 31 // in the private: declarations in a class. 32 #define DISALLOW_COPY_AND_ASSIGN(TypeName) \ 33 TypeName(const TypeName&) = delete; \ 34 void operator=(const TypeName&) = delete 35 #endif // !defined(DISALLOW_COPY_AND_ASSIGN) 36 37 // This seems a header-only include. Provide NPE throwing. jniThrowNullPointerException(JNIEnv * env)38static inline int jniThrowNullPointerException(JNIEnv* env) { 39 if (env->ExceptionCheck()) { 40 // Drop any pending exception. 41 env->ExceptionClear(); 42 } 43 44 jclass e_class = env->FindClass("java/lang/NullPointerException"); 45 if (e_class == nullptr) { 46 return -1; 47 } 48 49 if (env->ThrowNew(e_class, nullptr) != JNI_OK) { 50 env->DeleteLocalRef(e_class); 51 return -1; 52 } 53 54 env->DeleteLocalRef(e_class); 55 return 0; 56 } 57 58 #endif // defined(__cplusplus) 59 60 #endif // SRC_ANDROID_SDK_NATIVEHELPER_NATIVEHELPER_UTILS_H_ 61