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/*
* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#ifndef SERIALGC
#include "gc_implementation/shared/immutableSpace.hpp"
#include "memory/universe.hpp"
#include "oops/oop.inline.hpp"
#endif
void ImmutableSpace::initialize(MemRegion mr) {
HeapWord* bottom = mr.start();
HeapWord* end = mr.end();
assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end),
"invalid space boundaries");
_bottom = bottom;
_end = end;
}
void ImmutableSpace::oop_iterate(ExtendedOopClosure* cl) {
HeapWord* obj_addr = bottom();
HeapWord* t = end();
// Could call objects iterate, but this is easier.
while (obj_addr < t) {
obj_addr += oop(obj_addr)->oop_iterate(cl);
}
}
void ImmutableSpace::object_iterate(ObjectClosure* cl) {
HeapWord* p = bottom();
while (p < end()) {
cl->do_object(oop(p));
p += oop(p)->size();
}
}
#ifndef PRODUCT
void ImmutableSpace::print_short() const {
tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K);
}
void ImmutableSpace::print() const {
print_short();
tty->print_cr(" [%#-6lx,%#-6lx)", bottom(), end());
}
#endif
void ImmutableSpace::verify() {
HeapWord* p = bottom();
HeapWord* t = end();
HeapWord* prev_p = NULL;
while (p < t) {
oop(p)->verify();
prev_p = p;
p += oop(p)->size();
}
guarantee(p == end(), "end of last object must match end of space");
}
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