jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/immutableSpace.cpp@db9981fd3124

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

     1 /*

     2  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "utilities/macros.hpp"

    27 #if INCLUDE_ALL_GCS

    28 #include "gc_implementation/shared/immutableSpace.hpp"

    29 #include "memory/universe.hpp"

    30 #include "oops/oop.inline.hpp"

    31 #endif // INCLUDE_ALL_GCS

    33 void ImmutableSpace::initialize(MemRegion mr) {

    34   HeapWord* bottom = mr.start();

    35   HeapWord* end    = mr.end();

    37   assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end),

    38          "invalid space boundaries");

    40   _bottom = bottom;

    41   _end = end;

    42 }

    44 void ImmutableSpace::oop_iterate(ExtendedOopClosure* cl) {

    45   HeapWord* obj_addr = bottom();

    46   HeapWord* t = end();

    47   // Could call objects iterate, but this is easier.

    48   while (obj_addr < t) {

    49     obj_addr += oop(obj_addr)->oop_iterate(cl);

    50   }

    51 }

    53 void ImmutableSpace::object_iterate(ObjectClosure* cl) {

    54   HeapWord* p = bottom();

    55   while (p < end()) {

    56     cl->do_object(oop(p));

    57     p += oop(p)->size();

    58   }

    59 }

    61 #ifndef PRODUCT

    63 void ImmutableSpace::print_short() const {

    64   tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K);

    65 }

    67 void ImmutableSpace::print() const {

    68   print_short();

    69   tty->print_cr(" [%#-6lx,%#-6lx)", bottom(), end());

    70 }

    72 #endif

    74 void ImmutableSpace::verify() {

    75   HeapWord* p = bottom();

    76   HeapWord* t = end();

    77   HeapWord* prev_p = NULL;

    78   while (p < t) {

    79     oop(p)->verify();

    80     prev_p = p;

    81     p += oop(p)->size();

    82   }

    83   guarantee(p == end(), "end of last object must match end of space");

    84 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/shared/immutableSpace.cpp@db9981fd3124

src/share/vm/gc_implementation/shared/immutableSpace.cpp