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utils/dnp3_src/java/cpp/adapters/LocalRef.h
76 строк
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thiagoralves
First commit. OpenPLC v3 beta 1
14 июн 2018, 20:43
14 июн 2018, 20:43
1b10e97
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/** * Copyright 2013 Automatak, LLC * * Licensed to Automatak, LLC (www.automatak.com) under one or more * contributor license agreements. See the NOTICE file distributed with this * work for additional information regarding copyright ownership. Automatak, LLC * licenses this file to you under the Apache License Version 2.0 (the "License"); * you may not use this file except in compliance with the License. You may obtain * a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0.html * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ #ifndef OPENDNP3JAVA_LOCALREF_H #define OPENDNP3JAVA_LOCALREF_H #include <jni.h> #include <assert.h> // RAII class for automatically disposing of local refs template <class T> class LocalRef { JNIEnv* const env; T ref; LocalRef(LocalRef&) = delete; LocalRef& operator=(LocalRef&) = delete; public: LocalRef(JNIEnv* env, T ref) : env(env), ref(ref) { } ~LocalRef() { if (ref != nullptr) { env->DeleteLocalRef(ref); } } LocalRef(LocalRef&& other) : env(other.env), ref(other.ref) { other.ref = nullptr; } inline operator const T& () const { return ref; } }; class LocalJString : public LocalRef<jstring> { public: LocalJString(JNIEnv* env, const char* cstring) : LocalRef<jstring>(env, env->NewStringUTF(cstring)) { } }; #endif