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src/share/vm/memory/iterator.cpp@2d8a650513c2 (annotated)

src/share/vm/memory/iterator.cpp

Fri, 29 Apr 2016 00:06:10 +0800

author

aoqi

date

Fri, 29 Apr 2016 00:06:10 +0800

changeset 1

2d8a650513c2

parent 0

f90c822e73f8

child 6876

710a3c8b516e

permissions

-rw-r--r--

Added MIPS 64-bit port.

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2013, 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	#include "precompiled.hpp"
aoqi@0	26	#include "memory/iterator.hpp"
aoqi@0	27	#include "oops/oop.inline.hpp"
aoqi@0	28
aoqi@0	29	void KlassToOopClosure::do_klass(Klass* k) {
aoqi@0	30	k->oops_do(_oop_closure);
aoqi@0	31	}
aoqi@0	32
aoqi@0	33	void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
aoqi@0	34	cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld);
aoqi@0	35	}
aoqi@0	36
aoqi@0	37	void ObjectToOopClosure::do_object(oop obj) {
aoqi@0	38	obj->oop_iterate(_cl);
aoqi@0	39	}
aoqi@0	40
aoqi@0	41	void VoidClosure::do_void() {
aoqi@0	42	ShouldNotCallThis();
aoqi@0	43	}
aoqi@0	44
aoqi@0	45	MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate)
aoqi@0	46	: _active(activate)
aoqi@0	47	{
aoqi@0	48	if (_active) nmethod::oops_do_marking_prologue();
aoqi@0	49	}
aoqi@0	50
aoqi@0	51	MarkingCodeBlobClosure::MarkScope::~MarkScope() {
aoqi@0	52	if (_active) nmethod::oops_do_marking_epilogue();
aoqi@0	53	}
aoqi@0	54
aoqi@0	55	void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) {
aoqi@0	56	nmethod* nm = cb->as_nmethod_or_null();
aoqi@0	57	if (nm == NULL) return;
aoqi@0	58	if (!nm->test_set_oops_do_mark()) {
aoqi@0	59	NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, 1st visit\n"));
aoqi@0	60	do_newly_marked_nmethod(nm);
aoqi@0	61	} else {
aoqi@0	62	NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, skipped on 2nd visit\n"));
aoqi@0	63	}
aoqi@0	64	}
aoqi@0	65
aoqi@0	66	void CodeBlobToOopClosure::do_newly_marked_nmethod(nmethod* nm) {
aoqi@0	67	nm->oops_do(_cl, /*allow_zombie=*/ false);
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) {
aoqi@0	71	if (!_do_marking) {
aoqi@0	72	nmethod* nm = cb->as_nmethod_or_null();
aoqi@0	73	NOT_PRODUCT(if (TraceScavenge && Verbose && nm != NULL) nm->print_on(tty, "oops_do, unmarked visit\n"));
aoqi@0	74	// This assert won't work, since there are lots of mini-passes
aoqi@0	75	// (mostly in debug mode) that co-exist with marking phases.
aoqi@0	76	//assert(!(cb->is_nmethod() && ((nmethod*)cb)->test_oops_do_mark()), "found marked nmethod during mark-free phase");
aoqi@0	77	if (nm != NULL) {
aoqi@0	78	nm->oops_do(_cl);
aoqi@0	79	}
aoqi@0	80	} else {
aoqi@0	81	MarkingCodeBlobClosure::do_code_blob(cb);
aoqi@0	82	}
aoqi@0	83	}
aoqi@0	84
aoqi@0	85