• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/runtime/objectMonitor.inline.hpp@c6ff24ceec1c (annotated)

src/share/vm/runtime/objectMonitor.inline.hpp

Thu, 10 Apr 2008 15:49:16 -0400

author

sbohne

date

Thu, 10 Apr 2008 15:49:16 -0400

changeset 528

c6ff24ceec1c

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6686407: Fix for 6666698 broke -XX:BiasedLockingStartupDelay=0
Summary: Stack allocated VM_EnableBiasedLocking op must be marked as such
Reviewed-by: xlu, acorn, never, dholmes

duke@435	1	/*
duke@435	2	* Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	inline intptr_t ObjectMonitor::is_entered(TRAPS) const {
duke@435	26	if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) {
duke@435	27	return 1;
duke@435	28	}
duke@435	29	return 0;
duke@435	30	}
duke@435	31
duke@435	32	inline markOop ObjectMonitor::header() const {
duke@435	33	return _header;
duke@435	34	}
duke@435	35
duke@435	36	inline void ObjectMonitor::set_header(markOop hdr) {
duke@435	37	_header = hdr;
duke@435	38	}
duke@435	39
duke@435	40	inline intptr_t ObjectMonitor::count() const {
duke@435	41	return _count;
duke@435	42	}
duke@435	43
duke@435	44	inline void ObjectMonitor::set_count(intptr_t count) {
duke@435	45	_count= count;
duke@435	46	}
duke@435	47
duke@435	48	inline intptr_t ObjectMonitor::waiters() const {
duke@435	49	return _waiters;
duke@435	50	}
duke@435	51
duke@435	52	inline void* ObjectMonitor::owner() const {
duke@435	53	return _owner;
duke@435	54	}
duke@435	55
duke@435	56	inline void ObjectMonitor::clear() {
duke@435	57	assert(_header, "Fatal logic error in ObjectMonitor header!");
duke@435	58	assert(_count == 0, "Fatal logic error in ObjectMonitor count!");
duke@435	59	assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!");
duke@435	60	assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!");
duke@435	61	assert(_object, "Fatal logic error in ObjectMonitor object!");
duke@435	62	assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!");
duke@435	63
duke@435	64	_header = NULL;
duke@435	65	_object = NULL;
duke@435	66	}
duke@435	67
duke@435	68
duke@435	69	inline void* ObjectMonitor::object() const {
duke@435	70	return _object;
duke@435	71	}
duke@435	72
duke@435	73	inline void* ObjectMonitor::object_addr() {
duke@435	74	return (void *)(&_object);
duke@435	75	}
duke@435	76
duke@435	77	inline void ObjectMonitor::set_object(void* obj) {
duke@435	78	_object = obj;
duke@435	79	}
duke@435	80
duke@435	81	inline bool ObjectMonitor::check(TRAPS) {
duke@435	82	if (THREAD != _owner) {
duke@435	83	if (THREAD->is_lock_owned((address) _owner)) {
duke@435	84	_owner = THREAD; // regain ownership of inflated monitor
duke@435	85	OwnerIsThread = 1 ;
duke@435	86	assert (_recursions == 0, "invariant") ;
duke@435	87	} else {
duke@435	88	check_slow(THREAD);
duke@435	89	return false;
duke@435	90	}
duke@435	91	}
duke@435	92	return true;
duke@435	93	}
duke@435	94
duke@435	95
duke@435	96	// return number of threads contending for this monitor
duke@435	97	inline intptr_t ObjectMonitor::contentions() const {
duke@435	98	return _count;
duke@435	99	}
duke@435	100
duke@435	101	inline void ObjectMonitor::set_owner(void* owner) {
duke@435	102	_owner = owner;
duke@435	103	_recursions = 0;
duke@435	104	_count = 0;
duke@435	105	}
duke@435	106
duke@435	107
duke@435	108	// here are the platform-dependent bodies:
duke@435	109
duke@435	110	# include "incls/_objectMonitor_pd.inline.hpp.incl"