1 /*

     2  * Copyright (c) 2016, 2017, 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 

    24 #ifndef SHARE_GC_Z_ZMARKCACHE_INLINE_HPP

    25 #define SHARE_GC_Z_ZMARKCACHE_INLINE_HPP

    26 

    27 #include "gc/z/zMarkCache.hpp"

    28 #include "gc/z/zPage.inline.hpp"

    29 

    30 inline void ZMarkCacheEntry::inc_live(ZPage* page, size_t bytes) {

    31   if (_page == page) {

    32     // Cache hit

    33     _objects++;

    34     _bytes += bytes;

    35   } else {

    36     // Cache miss

    37     evict();

    38     _page = page;

    39     _objects = 1;

    40     _bytes = bytes;

    41   }

    42 }

    43 

    44 inline void ZMarkCacheEntry::evict() {

    45   if (_page != NULL) {

    46     // Write cached data out to page

    47     _page->inc_live_atomic(_objects, _bytes);

    48     _page = NULL;

    49   }

    50 }

    51 

    52 inline void ZMarkCache::inc_live(ZPage* page, size_t bytes) {

    53   const size_t mask = ZMarkCacheSize - 1;

    54   const size_t index = (page->start() >> _shift) & mask;

    55   _cache[index].inc_live(page, bytes);

    56 }

    57 

    58 #endif // SHARE_GC_Z_ZMARKCACHE_INLINE_HPP