/*
 * Copyright (c) 2015, 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.
 *
 */

#ifndef SHARE_VM_MEMORY_STRONGROOTSSCOPE_HPP
#define SHARE_VM_MEMORY_STRONGROOTSSCOPE_HPP

#include "memory/iterator.hpp"

// Some collectors will perform "process_strong_roots" in parallel.
// Such a call will involve claiming some fine-grained tasks, such as
// scanning of threads and code blobs.
// Claiming of these tasks requires that sequential code calls
// initialization methods to set the claiming code in the right
// state for parallel task claiming.
// StrongRootsScope is a way to capture such setup code to make
// sure that it is executed in the correct way.
class StrongRootsScope : public MarkingCodeBlobClosure::MarkScope {
 public:
  StrongRootsScope(bool activate = true);
  ~StrongRootsScope();
};

#endif // SHARE_VM_MEMORY_STRONGROOTSSCOPE_HPP