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src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp@4c1b88a53c74 (annotated)

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

Tue, 24 Jun 2014 16:20:15 +0200

author

stefank

date

Tue, 24 Jun 2014 16:20:15 +0200

changeset 6982

4c1b88a53c74

parent 4037

da91efe96a93

child 7535

7ae4e26cb1e0

permissions

-rw-r--r--

8046670: Make CMS metadata aware closures applicable for other collectors
Reviewed-by: ehelin, mgerdin

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 2007, 2012, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP
stefank@2314	26	#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP
stefank@2314	27
stefank@2314	28	#include "gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp"
stefank@2314	29	#include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
coleenp@4037	30	#include "oops/oop.inline.hpp"
stefank@2314	31
duke@435	32	// Trim our work_queue so its length is below max at return
duke@435	33	inline void Par_MarkRefsIntoAndScanClosure::trim_queue(uint max) {
duke@435	34	while (_work_queue->size() > max) {
duke@435	35	oop newOop;
duke@435	36	if (_work_queue->pop_local(newOop)) {
duke@435	37	assert(newOop->is_oop(), "Expected an oop");
duke@435	38	assert(_bit_map->isMarked((HeapWord*)newOop),
duke@435	39	"only grey objects on this stack");
duke@435	40	// iterate over the oops in this oop, marking and pushing
duke@435	41	// the ones in CMS heap (i.e. in _span).
duke@435	42	newOop->oop_iterate(&_par_pushAndMarkClosure);
duke@435	43	}
duke@435	44	}
duke@435	45	}
duke@435	46
stefank@6982	47	// MetadataAwareOopClosure and MetadataAwareOopsInGenClosure are duplicated,
coleenp@4037	48	// until we get rid of OopsInGenClosure.
coleenp@4037	49
stefank@6982	50	inline void MetadataAwareOopsInGenClosure::do_klass_nv(Klass* k) {
coleenp@4037	51	ClassLoaderData* cld = k->class_loader_data();
coleenp@4037	52	do_class_loader_data(cld);
jmasa@1370	53	}
stefank@6982	54	inline void MetadataAwareOopsInGenClosure::do_klass(Klass* k) { do_klass_nv(k); }
duke@435	55
stefank@6982	56	inline void MetadataAwareOopsInGenClosure::do_class_loader_data(ClassLoaderData* cld) {
coleenp@4037	57	assert(_klass_closure._oop_closure == this, "Must be");
coleenp@4037	58
coleenp@4037	59	bool claim = true; // Must claim the class loader data before processing.
coleenp@4037	60	cld->oops_do(_klass_closure._oop_closure, &_klass_closure, claim);
ysr@1376	61	}
ysr@1376	62
stefank@2314	63	#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP