aoqi@0: /*
aoqi@0:  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP
aoqi@0: #define SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP
aoqi@0: 
aoqi@0: inline intptr_t ObjectMonitor::is_entered(TRAPS) const {
aoqi@0:   if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) {
aoqi@0:     return 1;
aoqi@0:   }
aoqi@0:   return 0;
aoqi@0: }
aoqi@0: 
aoqi@0: inline markOop ObjectMonitor::header() const {
aoqi@0:   return _header;
aoqi@0: }
aoqi@0: 
aoqi@0: inline void ObjectMonitor::set_header(markOop hdr) {
aoqi@0:   _header = hdr;
aoqi@0: }
aoqi@0: 
aoqi@0: inline intptr_t ObjectMonitor::count() const {
aoqi@0:   return _count;
aoqi@0: }
aoqi@0: 
aoqi@0: inline void ObjectMonitor::set_count(intptr_t count) {
aoqi@0:   _count= count;
aoqi@0: }
aoqi@0: 
aoqi@0: inline intptr_t ObjectMonitor::waiters() const {
aoqi@0:   return _waiters;
aoqi@0: }
aoqi@0: 
aoqi@0: inline void* ObjectMonitor::owner() const {
aoqi@0:   return _owner;
aoqi@0: }
aoqi@0: 
aoqi@0: inline void ObjectMonitor::clear() {
aoqi@0:   assert(_header, "Fatal logic error in ObjectMonitor header!");
aoqi@0:   assert(_count == 0, "Fatal logic error in ObjectMonitor count!");
aoqi@0:   assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!");
aoqi@0:   assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!");
aoqi@0:   assert(_object, "Fatal logic error in ObjectMonitor object!");
aoqi@0:   assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!");
aoqi@0: 
aoqi@0:   _header = NULL;
aoqi@0:   _object = NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: inline void* ObjectMonitor::object() const {
aoqi@0:   return _object;
aoqi@0: }
aoqi@0: 
aoqi@0: inline void* ObjectMonitor::object_addr() {
aoqi@0:   return (void *)(&_object);
aoqi@0: }
aoqi@0: 
aoqi@0: inline void ObjectMonitor::set_object(void* obj) {
aoqi@0:   _object = obj;
aoqi@0: }
aoqi@0: 
aoqi@0: inline bool ObjectMonitor::check(TRAPS) {
aoqi@0:   if (THREAD != _owner) {
aoqi@0:     if (THREAD->is_lock_owned((address) _owner)) {
aoqi@0:       _owner = THREAD;  // regain ownership of inflated monitor
aoqi@0:       OwnerIsThread = 1 ;
aoqi@0:       assert (_recursions == 0, "invariant") ;
aoqi@0:     } else {
aoqi@0:       check_slow(THREAD);
aoqi@0:       return false;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // return number of threads contending for this monitor
aoqi@0: inline intptr_t ObjectMonitor::contentions() const {
aoqi@0:   return _count;
aoqi@0: }
aoqi@0: 
aoqi@0: // Do NOT set _count = 0. There is a race such that _count could
aoqi@0: // be set while inflating prior to setting _owner
aoqi@0: // Just use Atomic::inc/dec and assert 0 when monitor put on free list
aoqi@0: inline void ObjectMonitor::set_owner(void* owner) {
aoqi@0:   _owner = owner;
aoqi@0:   _recursions = 0;
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: #endif // SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP