83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
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* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "gc/parallel/immutableSpace.hpp"
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#include "memory/universe.hpp"
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#include "oops/oop.inline.hpp"
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#include "utilities/macros.hpp"
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void ImmutableSpace::initialize(MemRegion mr) {
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HeapWord* bottom = mr.start();
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HeapWord* end = mr.end();
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assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end),
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"invalid space boundaries");
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_bottom = bottom;
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_end = end;
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}
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void ImmutableSpace::oop_iterate(ExtendedOopClosure* cl) {
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HeapWord* obj_addr = bottom();
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HeapWord* t = end();
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// Could call objects iterate, but this is easier.
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while (obj_addr < t) {
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obj_addr += oop(obj_addr)->oop_iterate_size(cl);
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}
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}
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void ImmutableSpace::object_iterate(ObjectClosure* cl) {
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HeapWord* p = bottom();
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while (p < end()) {
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cl->do_object(oop(p));
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p += oop(p)->size();
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}
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}
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#ifndef PRODUCT
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void ImmutableSpace::print_short() const {
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tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K);
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}
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void ImmutableSpace::print() const {
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print_short();
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tty->print_cr(" [" INTPTR_FORMAT_W(#-6) "," INTPTR_FORMAT_W(#-6) ")", p2i(bottom()), p2i(end()));
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}
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#endif
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void ImmutableSpace::verify() {
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HeapWord* p = bottom();
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HeapWord* t = end();
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HeapWord* prev_p = NULL;
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while (p < t) {
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oop(p)->verify();
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prev_p = p;
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p += oop(p)->size();
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}
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guarantee(p == end(), "end of last object must match end of space");
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}
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