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src/share/vm/memory/iterator.cpp@2c6ef90f030a (annotated)

src/share/vm/memory/iterator.cpp

Mon, 07 Jul 2014 10:12:40 +0200

author

stefank

date

Mon, 07 Jul 2014 10:12:40 +0200

changeset 6992

2c6ef90f030a

parent 6982

4c1b88a53c74

child 7535

7ae4e26cb1e0

permissions

-rw-r--r--

8049421: G1 Class Unloading after completing a concurrent mark cycle
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com

duke@435	1	/*
mikael@6198	2	* Copyright (c) 1997, 2013, 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	#include "precompiled.hpp"
stefank@2314	26	#include "memory/iterator.hpp"
stefank@2314	27	#include "oops/oop.inline.hpp"
duke@435	28
stefank@4050	29	void KlassToOopClosure::do_klass(Klass* k) {
stefank@6982	30	assert(_oop_closure != NULL, "Not initialized?");
stefank@4050	31	k->oops_do(_oop_closure);
stefank@4050	32	}
stefank@4050	33
stefank@4298	34	void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
stefank@4298	35	cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld);
stefank@4298	36	}
stefank@4298	37
stefank@6992	38	void CLDToKlassAndOopClosure::do_cld(ClassLoaderData* cld) {
stefank@6992	39	cld->oops_do(_oop_closure, _klass_closure, _must_claim_cld);
stefank@6992	40	}
stefank@6992	41
duke@435	42	void ObjectToOopClosure::do_object(oop obj) {
duke@435	43	obj->oop_iterate(_cl);
duke@435	44	}
duke@435	45
duke@435	46	void VoidClosure::do_void() {
duke@435	47	ShouldNotCallThis();
duke@435	48	}
jmasa@1370	49
stefank@6992	50	void CodeBlobToOopClosure::do_nmethod(nmethod* nm) {
stefank@6992	51	nm->oops_do(_cl);
stefank@6992	52	if (_fix_relocations) {
stefank@6992	53	nm->fix_oop_relocations();
stefank@6992	54	}
stefank@6992	55	}
stefank@6992	56
stefank@6992	57	void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) {
stefank@6992	58	nmethod* nm = cb->as_nmethod_or_null();
stefank@6992	59	if (nm != NULL) {
stefank@6992	60	do_nmethod(nm);
stefank@6992	61	}
stefank@6992	62	}
stefank@6992	63
jrose@1424	64	MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate)
jrose@1424	65	: _active(activate)
jrose@1424	66	{
jrose@1424	67	if (_active) nmethod::oops_do_marking_prologue();
jrose@1424	68	}
jrose@1424	69
jrose@1424	70	MarkingCodeBlobClosure::MarkScope::~MarkScope() {
jrose@1424	71	if (_active) nmethod::oops_do_marking_epilogue();
jrose@1424	72	}
jrose@1424	73
jrose@1424	74	void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) {
twisti@1918	75	nmethod* nm = cb->as_nmethod_or_null();
stefank@6992	76	if (nm != NULL && !nm->test_set_oops_do_mark()) {
stefank@6992	77	do_nmethod(nm);
jrose@1424	78	}
jrose@1424	79	}