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 #include "precompiled.hpp"
26 #include "classfile/classLoaderData.hpp"
27 #include "memory/cardTableRS.hpp"
28 #include "memory/genRemSet.hpp"
29
30 // This kind of "BarrierSet" allows a "CollectedHeap" to detect and
31 // enumerate ref fields that have been modified (since the last
32 // enumeration.)
33
34 uintx GenRemSet::max_alignment_constraint() {
35 return CardTableRS::ct_max_alignment_constraint();
36 }
37
38 class HasAccumulatedModifiedOopsClosure : public KlassClosure {
39 bool _found;
40 public:
41 HasAccumulatedModifiedOopsClosure() : _found(false) {}
42 void do_klass(Klass* klass) {
43 if (_found) {
44 return;
45 }
46
47 if (klass->has_accumulated_modified_oops()) {
48 _found = true;
|
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 #include "precompiled.hpp"
26 #include "classfile/classLoaderData.hpp"
27 #include "memory/cardTableRS.hpp"
28 #include "memory/genRemSet.hpp"
29 #include "oops/klass.hpp"
30
31 // This kind of "BarrierSet" allows a "CollectedHeap" to detect and
32 // enumerate ref fields that have been modified (since the last
33 // enumeration.)
34
35 uintx GenRemSet::max_alignment_constraint() {
36 return CardTableRS::ct_max_alignment_constraint();
37 }
38
39 class HasAccumulatedModifiedOopsClosure : public KlassClosure {
40 bool _found;
41 public:
42 HasAccumulatedModifiedOopsClosure() : _found(false) {}
43 void do_klass(Klass* klass) {
44 if (_found) {
45 return;
46 }
47
48 if (klass->has_accumulated_modified_oops()) {
49 _found = true;
|