/* * Copyright (c) 2015, 2018, 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. * */ #ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHBROOKSPOINTER_INLINE_HPP #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHBROOKSPOINTER_INLINE_HPP #include "gc/shenandoah/shenandoahAsserts.hpp" #include "gc/shenandoah/shenandoahBrooksPointer.hpp" #include "runtime/atomic.hpp" inline HeapWord** ShenandoahBrooksPointer::brooks_ptr_addr(oop obj) { return (HeapWord**)((HeapWord*) obj + word_offset()); } inline void ShenandoahBrooksPointer::initialize(oop obj) { shenandoah_assert_in_heap(NULL, obj); *brooks_ptr_addr(obj) = (HeapWord*) obj; } inline void ShenandoahBrooksPointer::set_raw(oop obj, HeapWord* update) { shenandoah_assert_in_heap(NULL, obj); *brooks_ptr_addr(obj) = update; } inline HeapWord* ShenandoahBrooksPointer::get_raw(oop obj) { shenandoah_assert_in_heap(NULL, obj); return *brooks_ptr_addr(obj); } inline HeapWord* ShenandoahBrooksPointer::get_raw_unchecked(oop obj) { return *brooks_ptr_addr(obj); } inline oop ShenandoahBrooksPointer::forwardee(oop obj) { shenandoah_assert_correct(NULL, obj); return oop(*brooks_ptr_addr(obj)); } inline oop ShenandoahBrooksPointer::try_update_forwardee(oop obj, oop update) { oop result = (oop) Atomic::cmpxchg(update, (oop*)brooks_ptr_addr(obj), obj); shenandoah_assert_correct_except(NULL, obj, !oopDesc::equals_raw(result, obj)); return result; } #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHBROOKSPOINTER_INLINE_HPP