1 /* 2 * Copyright (C) 2014 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 #include "gc/heap.h" 18 #include "gc/reference_processor.h" 19 #include "jni_internal.h" 20 #include "mirror/object-inl.h" 21 #include "mirror/reference-inl.h" 22 #include "scoped_fast_native_object_access.h" 23 24 namespace art { 25 26 static jobject Reference_getReferent(JNIEnv* env, jobject javaThis) { 27 ScopedFastNativeObjectAccess soa(env); 28 mirror::Reference* const ref = soa.Decode<mirror::Reference*>(javaThis); 29 mirror::Object* const referent = 30 Runtime::Current()->GetHeap()->GetReferenceProcessor()->GetReferent(soa.Self(), ref); 31 return soa.AddLocalReference<jobject>(referent); 32 } 33 34 static JNINativeMethod gMethods[] = { 35 NATIVE_METHOD(Reference, getReferent, "!()Ljava/lang/Object;"), 36 }; 37 38 void register_java_lang_ref_Reference(JNIEnv* env) { 39 REGISTER_NATIVE_METHODS("java/lang/ref/Reference"); 40 } 41 42 } // namespace art 43
