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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
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