text: /*
   * Copyright 2017 The Android Open Source Project
   *
   * Licensed 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
   *
   * 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.
   */
  
  #include <jni.h>
  
  #include "jit/jit.h"
  #include "jit/jit_code_cache.h"
  #include "mirror/class.h"
  #include "mirror/string.h"
  #include "runtime.h"
  #include "scoped_thread_state_change-inl.h"
  
  namespace art {
  
  // Local class declared as a friend of JitCodeCache so that we can access its internals.
  class JitJniStubTestHelper {
   public:
    static bool isNextJitGcFull(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_) {
      CHECK(Runtime::Current()->GetJit() != nullptr);
      jit::JitCodeCache* cache = Runtime::Current()->GetJit()->GetCodeCache();
      MutexLock mu(self, cache->lock_);
      return cache->ShouldDoFullCollection();
    }
  };
  
  // Calls through to a static method with signature "()V".
  extern "C" JNIEXPORT
  void Java_Main_callThrough(JNIEnv* env, jclass, jclass klass, jstring methodName) {
    ScopedObjectAccess soa(Thread::Current());
    std::string name = soa.Decode<mirror::String>(methodName)->ToModifiedUtf8();
    jmethodID method = env->GetStaticMethodID(klass, name.c_str(), "()V");
    CHECK(method != nullptr) << soa.Decode<mirror::Class>(klass)->PrettyDescriptor() << "." << name;
    env->CallStaticVoidMethod(klass, method);
  }
  
  extern "C" JNIEXPORT
  void Java_Main_jitGc(JNIEnv*, jclass) {
    CHECK(Runtime::Current()->GetJit() != nullptr);
    jit::JitCodeCache* cache = Runtime::Current()->GetJit()->GetCodeCache();
    ScopedObjectAccess soa(Thread::Current());
    cache->GarbageCollectCache(Thread::Current());
  }
  
  extern "C" JNIEXPORT
  jboolean Java_Main_isNextJitGcFull(JNIEnv*, jclass) {
    ScopedObjectAccess soa(Thread::Current());
    return JitJniStubTestHelper::isNextJitGcFull(soa.Self());
  }
  
  }  // namespace art
  