| /* |
| * Copyright 2019 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| #ifndef SDK_ANDROID_SRC_JNI_SCOPED_JAVA_REF_COUNTED_H_ |
| #define SDK_ANDROID_SRC_JNI_SCOPED_JAVA_REF_COUNTED_H_ |
| |
| #include "sdk/android/native_api/jni/scoped_java_ref.h" |
| |
| namespace webrtc { |
| namespace jni { |
| |
| // Holds a reference to a java object implementing the RefCounted interface, and |
| // calls its release() method from the destructor. |
| class ScopedJavaRefCounted { |
| public: |
| // Takes over the caller's reference. |
| static ScopedJavaRefCounted Adopt(JNIEnv* env, |
| const JavaRef<jobject>& j_object) { |
| return ScopedJavaRefCounted(env, j_object); |
| } |
| |
| ScopedJavaRefCounted(ScopedJavaRefCounted&& other) = default; |
| |
| // TODO(nisse): Implement move assignment and copy operations when needed. |
| ScopedJavaRefCounted(const ScopedJavaRefCounted& other) = delete; |
| ScopedJavaRefCounted& operator=(const ScopedJavaRefCounted&) = delete; |
| |
| ~ScopedJavaRefCounted() { |
| if (!j_object_.is_null()) { |
| JNIEnv* jni = AttachCurrentThreadIfNeeded(); |
| Java_RefCounted_release(jni, j_object_); |
| CHECK_EXCEPTION(jni) |
| << "Unexpected java exception from ScopedJavaRefCounted.release()"; |
| } |
| } |
| |
| private: |
| // Adopts reference. |
| ScopedJavaRefCounted(JNIEnv* env, const JavaRef<jobject>& j_object) |
| : j_object_(env, j_object) {} |
| |
| ScopedJavaGlobalRef<jobject> j_object_; |
| }; |
| |
| } // namespace jni |
| } // namespace webrtc |
| |
| #endif // SDK_ANDROID_SRC_JNI_SCOPED_JAVA_REF_COUNTED_H_ |