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src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp@7ae4e26cb1e0 (annotated)

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

Thu, 12 Oct 2017 21:27:07 +0800

author

aoqi

date

Thu, 12 Oct 2017 21:27:07 +0800

changeset 7535

7ae4e26cb1e0

parent 6982

4c1b88a53c74

parent 6876

710a3c8b516e

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP
aoqi@0	26	#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP
aoqi@0	27
aoqi@0	28	#include "gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp"
aoqi@0	29	#include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
aoqi@0	30	#include "oops/oop.inline.hpp"
aoqi@0	31
aoqi@0	32	// Trim our work_queue so its length is below max at return
aoqi@0	33	inline void Par_MarkRefsIntoAndScanClosure::trim_queue(uint max) {
aoqi@0	34	while (_work_queue->size() > max) {
aoqi@0	35	oop newOop;
aoqi@0	36	if (_work_queue->pop_local(newOop)) {
aoqi@0	37	assert(newOop->is_oop(), "Expected an oop");
aoqi@0	38	assert(_bit_map->isMarked((HeapWord*)newOop),
aoqi@0	39	"only grey objects on this stack");
aoqi@0	40	// iterate over the oops in this oop, marking and pushing
aoqi@0	41	// the ones in CMS heap (i.e. in _span).
aoqi@0	42	newOop->oop_iterate(&_par_pushAndMarkClosure);
aoqi@0	43	}
aoqi@0	44	}
aoqi@0	45	}
aoqi@0	46
stefank@6982	47	// MetadataAwareOopClosure and MetadataAwareOopsInGenClosure are duplicated,
aoqi@0	48	// until we get rid of OopsInGenClosure.
aoqi@0	49
stefank@6982	50	inline void MetadataAwareOopsInGenClosure::do_klass_nv(Klass* k) {
aoqi@0	51	ClassLoaderData* cld = k->class_loader_data();
aoqi@0	52	do_class_loader_data(cld);
aoqi@0	53	}
stefank@6982	54	inline void MetadataAwareOopsInGenClosure::do_klass(Klass* k) { do_klass_nv(k); }
aoqi@0	55
stefank@6982	56	inline void MetadataAwareOopsInGenClosure::do_class_loader_data(ClassLoaderData* cld) {
aoqi@0	57	assert(_klass_closure._oop_closure == this, "Must be");
aoqi@0	58
aoqi@0	59	bool claim = true; // Must claim the class loader data before processing.
aoqi@0	60	cld->oops_do(_klass_closure._oop_closure, &_klass_closure, claim);
aoqi@0	61	}
aoqi@0	62
aoqi@0	63	#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP