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      1 /*
      2  * Copyright (C) 2015 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 "jni.h"
     19 #include "runtime.h"
     20 #include "scoped_thread_state_change-inl.h"
     21 #include "thread-current-inl.h"
     22 
     23 namespace art {
     24 namespace {
     25 
     26 extern "C" JNIEXPORT jboolean JNICALL Java_MovingGCThread_performHomogeneousSpaceCompact(JNIEnv*, jclass) {
     27   return Runtime::Current()->GetHeap()->PerformHomogeneousSpaceCompact() == gc::kSuccess ?
     28       JNI_TRUE : JNI_FALSE;
     29 }
     30 
     31 extern "C" JNIEXPORT jboolean JNICALL Java_MovingGCThread_supportHomogeneousSpaceCompact(JNIEnv*, jclass) {
     32   return Runtime::Current()->GetHeap()->SupportHomogeneousSpaceCompactAndCollectorTransitions() ?
     33       JNI_TRUE : JNI_FALSE;
     34 }
     35 
     36 extern "C" JNIEXPORT jlong JNICALL Java_MovingGCThread_objectAddress(JNIEnv* env, jclass, jobject object) {
     37   ScopedObjectAccess soa(env);
     38   return reinterpret_cast<jlong>(soa.Decode<mirror::Object>(object).Ptr());
     39 }
     40 
     41 }  // namespace
     42 }  // namespace art
     43