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
25 #ifndef SHARE_GC_SHARED_PRESERVEDMARKS_INLINE_HPP
26 #define SHARE_GC_SHARED_PRESERVEDMARKS_INLINE_HPP
27
28 #include "gc/shared/preservedMarks.hpp"
29
30 #include "logging/log.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "utilities/stack.inline.hpp"
33
34 inline bool PreservedMarks::should_preserve_mark(oop obj, markWord m) const {
35 return obj->mark_must_be_preserved(m);
36 }
37
38 inline void PreservedMarks::push_if_necessary(oop obj, markWord m) {
39 if (should_preserve_mark(obj, m)) {
40 PreservedMark elem(obj, m);
41 _stack.push(elem);
42 }
43 }
44
45 inline void PreservedMarks::push_always(oop obj, markWord m) {
46 assert(!m.is_marked(), "precondition");
47 PreservedMark elem(obj, m);
48 _stack.push(elem);
49 }
50
51 inline PreservedMarks::PreservedMarks()
52 : _stack(PreservedMarkStack::default_segment_size(),
53 // This stack should be used very infrequently so there's
54 // no point in caching stack segments (there will be a
55 // waste of space most of the time). So we set the max
56 // cache size to 0.
57 0 /* max_cache_size */) { }
58
59 void PreservedMark::set_mark() const {
60 _o->set_mark(_m);
61 }
62
63 #endif // SHARE_GC_SHARED_PRESERVEDMARKS_INLINE_HPP
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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
25 #ifndef SHARE_GC_SHARED_PRESERVEDMARKS_INLINE_HPP
26 #define SHARE_GC_SHARED_PRESERVEDMARKS_INLINE_HPP
27
28 #include "gc/shared/preservedMarks.hpp"
29 #include "gc/shared/slidingForwarding.inline.hpp"
30
31 #include "logging/log.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "utilities/stack.inline.hpp"
34
35 inline bool PreservedMarks::should_preserve_mark(oop obj, markWord m) const {
36 return obj->mark_must_be_preserved(m);
37 }
38
39 inline void PreservedMarks::push_if_necessary(oop obj, markWord m) {
40 if (should_preserve_mark(obj, m)) {
41 PreservedMark elem(obj, m);
42 _stack.push(elem);
43 }
44 }
45
46 inline void PreservedMarks::push_always(oop obj, markWord m) {
47 assert(!m.is_marked(), "precondition");
48 PreservedMark elem(obj, m);
49 _stack.push(elem);
50 }
51
52 inline PreservedMarks::PreservedMarks()
53 : _stack(PreservedMarkStack::default_segment_size(),
54 // This stack should be used very infrequently so there's
55 // no point in caching stack segments (there will be a
56 // waste of space most of the time). So we set the max
57 // cache size to 0.
58 0 /* max_cache_size */) { }
59
60 void PreservedMark::set_mark() const {
61 _o->set_mark(_m);
62 }
63
64 template <bool ALT_FWD>
65 inline void PreservedMarks::adjust_preserved_mark(PreservedMark* elem) {
66 oop obj = elem->get_oop();
67 if (obj->is_forwarded()) {
68 elem->set_oop(SlidingForwarding::forwardee<ALT_FWD>(obj));
69 }
70 }
71
72 #endif // SHARE_GC_SHARED_PRESERVEDMARKS_INLINE_HPP
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