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(_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