Mercurial > hg > graal-compiler
view src/share/vm/runtime/objectMonitor.inline.hpp @ 12498:d00c31d8394f
Flush deferred barrier when Graal and G1 are used
author | Christos Kotselidis <christos.kotselidis@oracle.com> |
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date | Mon, 21 Oct 2013 17:21:26 +0200 |
parents | 22ba8c8ce6a6 |
children |
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/* * Copyright (c) 1998, 2013, 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_RUNTIME_OBJECTMONITOR_INLINE_HPP #define SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP inline intptr_t ObjectMonitor::is_entered(TRAPS) const { if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) { return 1; } return 0; } inline markOop ObjectMonitor::header() const { return _header; } inline void ObjectMonitor::set_header(markOop hdr) { _header = hdr; } inline intptr_t ObjectMonitor::count() const { return _count; } inline void ObjectMonitor::set_count(intptr_t count) { _count= count; } inline intptr_t ObjectMonitor::waiters() const { return _waiters; } inline void* ObjectMonitor::owner() const { return _owner; } inline void ObjectMonitor::clear() { assert(_header, "Fatal logic error in ObjectMonitor header!"); assert(_count == 0, "Fatal logic error in ObjectMonitor count!"); assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!"); assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!"); assert(_object, "Fatal logic error in ObjectMonitor object!"); assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!"); _header = NULL; _object = NULL; } inline void* ObjectMonitor::object() const { return _object; } inline void* ObjectMonitor::object_addr() { return (void *)(&_object); } inline void ObjectMonitor::set_object(void* obj) { _object = obj; } inline bool ObjectMonitor::check(TRAPS) { if (THREAD != _owner) { if (THREAD->is_lock_owned((address) _owner)) { _owner = THREAD; // regain ownership of inflated monitor OwnerIsThread = 1 ; assert (_recursions == 0, "invariant") ; } else { check_slow(THREAD); return false; } } return true; } // return number of threads contending for this monitor inline intptr_t ObjectMonitor::contentions() const { return _count; } // Do NOT set _count = 0. There is a race such that _count could // be set while inflating prior to setting _owner // Just use Atomic::inc/dec and assert 0 when monitor put on free list inline void ObjectMonitor::set_owner(void* owner) { _owner = owner; _recursions = 0; } #endif // SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP