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

src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp@2d127394260e (annotated)

src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp

Thu, 27 May 2010 18:01:56 -0700

author

kvn

date

Thu, 27 May 2010 18:01:56 -0700

changeset 1926

2d127394260e

parent 1376

8b46c4d82093

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
Summary: Added new product ObjectAlignmentInBytes flag to control object alignment.
Reviewed-by: twisti, ysr, iveresov

duke@435	1	/*
duke@435	2	* Copyright (c) 2007 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	// Trim our work_queue so its length is below max at return
duke@435	26	inline void Par_MarkRefsIntoAndScanClosure::trim_queue(uint max) {
duke@435	27	while (_work_queue->size() > max) {
duke@435	28	oop newOop;
duke@435	29	if (_work_queue->pop_local(newOop)) {
duke@435	30	assert(newOop->is_oop(), "Expected an oop");
duke@435	31	assert(_bit_map->isMarked((HeapWord*)newOop),
duke@435	32	"only grey objects on this stack");
duke@435	33	// iterate over the oops in this oop, marking and pushing
duke@435	34	// the ones in CMS heap (i.e. in _span).
duke@435	35	newOop->oop_iterate(&_par_pushAndMarkClosure);
duke@435	36	}
duke@435	37	}
duke@435	38	}
duke@435	39
jmasa@1370	40	#ifndef PRODUCT
jmasa@1370	41	void KlassRememberingOopClosure::check_remember_klasses() const {
jmasa@1370	42	assert(_should_remember_klasses == must_remember_klasses(),
jmasa@1370	43	"Should remember klasses in this context.");
jmasa@1370	44	}
jmasa@1370	45	#endif
jmasa@1370	46
jmasa@1370	47	void KlassRememberingOopClosure::remember_klass(Klass* k) {
jmasa@1370	48	if (!_revisit_stack->push(oop(k))) {
duke@435	49	fatal("Revisit stack overflow in PushOrMarkClosure");
duke@435	50	}
jmasa@1370	51	check_remember_klasses();
duke@435	52	}
duke@435	53
ysr@1376	54	inline void PushOrMarkClosure::remember_mdo(DataLayout* v) {
ysr@1376	55	// TBD
ysr@1376	56	}
ysr@1376	57
ysr@1376	58
jmasa@1370	59	void Par_KlassRememberingOopClosure::remember_klass(Klass* k) {
duke@435	60	if (!_revisit_stack->par_push(oop(k))) {
ysr@1376	61	fatal("Revisit stack overflow in Par_KlassRememberingOopClosure");
duke@435	62	}
jmasa@1370	63	check_remember_klasses();
duke@435	64	}
duke@435	65
ysr@1376	66	inline void Par_PushOrMarkClosure::remember_mdo(DataLayout* v) {
ysr@1376	67	// TBD
ysr@1376	68	}
ysr@1376	69
duke@435	70	inline void PushOrMarkClosure::do_yield_check() {
duke@435	71	_parent->do_yield_check();
duke@435	72	}
duke@435	73
duke@435	74	inline void Par_PushOrMarkClosure::do_yield_check() {
duke@435	75	_parent->do_yield_check();
duke@435	76	}