/*

 * Copyright (c) 2019, Red Hat, Inc. All rights reserved.

 *

 * 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/shenandoah/shenandoahConcurrentRoots.hpp"

#include "gc/shenandoah/shenandoahHeap.inline.hpp"

bool ShenandoahConcurrentRoots::can_do_concurrent_roots() {

  // Don't support traversal GC at this moment

  return !ShenandoahHeap::heap()->is_traversal_mode();

}

bool ShenandoahConcurrentRoots::should_do_concurrent_roots() {

  ShenandoahHeap* const heap = ShenandoahHeap::heap();

  bool stw_gc_in_progress = heap->is_full_gc_in_progress() ||

                            heap->is_degenerated_gc_in_progress();

  return can_do_concurrent_roots() &&

         !stw_gc_in_progress;

}