73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_TEST_TI_AGENT_JNI_HELPER_H_
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#define ART_TEST_TI_AGENT_JNI_HELPER_H_
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#include "jni.h"
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#include "scoped_local_ref.h"
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namespace art {
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// Create an object array using a lambda that returns a local ref for each element.
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template <typename T>
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static inline jobjectArray CreateObjectArray(JNIEnv* env,
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jint length,
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const char* component_type_descriptor,
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T src) {
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if (length < 0) {
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return nullptr;
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}
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ScopedLocalRef<jclass> obj_class(env, env->FindClass(component_type_descriptor));
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if (obj_class.get() == nullptr) {
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return nullptr;
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}
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ScopedLocalRef<jobjectArray> ret(env, env->NewObjectArray(length, obj_class.get(), nullptr));
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if (ret.get() == nullptr) {
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return nullptr;
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}
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for (jint i = 0; i < length; ++i) {
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jobject element = src(i);
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env->SetObjectArrayElement(ret.get(), static_cast<jint>(i), element);
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env->DeleteLocalRef(element);
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if (env->ExceptionCheck()) {
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return nullptr;
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}
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}
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return ret.release();
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}
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inline bool JniThrowNullPointerException(JNIEnv* env, const char* msg) {
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if (env->ExceptionCheck()) {
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env->ExceptionClear();
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}
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ScopedLocalRef<jclass> exc_class(env, env->FindClass("java/lang/NullPointerException"));
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if (exc_class.get() == nullptr) {
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return -1;
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}
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return env->ThrowNew(exc_class.get(), msg) == JNI_OK;
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}
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} // namespace art
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#endif // ART_TEST_TI_AGENT_JNI_HELPER_H_
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