/*

 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include "precompiled.hpp"

#include "gc/z/zHeap.inline.hpp"

#include "gc/z/zOopClosures.inline.hpp"

#include "gc/z/zStat.hpp"

#include "gc/z/zTask.hpp"

#include "gc/z/zThread.hpp"

#include "runtime/jniHandles.hpp"

ZWeakRootsProcessor::ZWeakRootsProcessor(ZWorkers* workers) :

    _workers(workers) {}

class ZProcessWeakRootsTask : public ZTask {

private:

  ZWeakRootsIterator _weak_roots;

public:

  ZProcessWeakRootsTask() :

      ZTask("ZProcessWeakRootsTask"),

      _weak_roots() {}

  virtual void work() {

    ZPhantomIsAliveObjectClosure is_alive;

    ZPhantomKeepAliveOopClosure keep_alive;

    _weak_roots.weak_oops_do(&is_alive, &keep_alive);

  }

};

void ZWeakRootsProcessor::process_weak_roots() {

  ZProcessWeakRootsTask task;

  _workers->run_parallel(&task);

}

class ZProcessConcurrentWeakRootsTask : public ZTask {

private:

  ZConcurrentWeakRootsIterator _concurrent_weak_roots;

public:

  ZProcessConcurrentWeakRootsTask() :

      ZTask("ZProcessConccurentWeakRootsTask"),

      _concurrent_weak_roots() {}

  virtual void work() {

    ZPhantomCleanOopClosure cl;

    _concurrent_weak_roots.oops_do(&cl);

  }

};

void ZWeakRootsProcessor::process_concurrent_weak_roots() {

  ZProcessConcurrentWeakRootsTask task;

  _workers->run_concurrent(&task);

}