/*

 * 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.

 *

 */

#include "precompiled.hpp"

#include "classfile/stringTable.hpp"

#include "code/nmethod.hpp"

#include "gc/shared/strongRootsScope.hpp"

#include "runtime/thread.hpp"

MarkScope::MarkScope() {

  nmethod::oops_do_marking_prologue();

}

MarkScope::~MarkScope() {

  nmethod::oops_do_marking_epilogue();

}

StrongRootsScope::StrongRootsScope(uint n_threads) : _n_threads(n_threads) {

  Threads::change_thread_claim_parity();

  // Zero the claimed high water mark in the StringTable

  StringTable::clear_parallel_claimed_index();

}

StrongRootsScope::~StrongRootsScope() {

  Threads::assert_all_threads_claimed();

}