1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/stringTable.hpp" 27 #include "code/nmethod.hpp" 28 #include "gc/shared/strongRootsScope.hpp" 29 #include "runtime/thread.hpp" 30 31 MarkScope::MarkScope() { 32 nmethod::oops_do_marking_prologue(); 33 } 34 35 MarkScope::~MarkScope() { 36 nmethod::oops_do_marking_epilogue(); 37 } 38 39 StrongRootsScope::StrongRootsScope(uint n_threads) : _n_threads(n_threads) { 40 Threads::change_thread_claim_parity(); 41 } 42 43 StrongRootsScope::~StrongRootsScope() { 44 Threads::assert_all_threads_claimed(); 45 }