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_VM_GC_PARALLEL_PSSCAVENGE_INLINE_HPP
26 #define SHARE_VM_GC_PARALLEL_PSSCAVENGE_INLINE_HPP
27
28 #include "gc/parallel/cardTableExtension.hpp"
29 #include "gc/parallel/parallelScavengeHeap.hpp"
30 #include "gc/parallel/psPromotionManager.inline.hpp"
31 #include "gc/parallel/psScavenge.hpp"
32 #include "memory/iterator.hpp"
33 #include "utilities/globalDefinitions.hpp"
34
35 inline void PSScavenge::save_to_space_top_before_gc() {
36 ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
37 _to_space_top_before_gc = heap->young_gen()->to_space()->top();
38 }
39
40 template <class T> inline bool PSScavenge::should_scavenge(T* p) {
41 T heap_oop = oopDesc::load_heap_oop(p);
42 return PSScavenge::is_obj_in_young(heap_oop);
43 }
44
45 template <class T>
46 inline bool PSScavenge::should_scavenge(T* p, MutableSpace* to_space) {
47 if (should_scavenge(p)) {
48 oop obj = oopDesc::load_decode_heap_oop_not_null(p);
49 // Skip objects copied to to_space since the scavenge started.
50 HeapWord* const addr = (HeapWord*)obj;
51 return addr < to_space_top_before_gc() || addr >= to_space->end();
122 private:
123 void do_klass_barrier() {
124 assert(_scanned_klass != NULL, "Should not be called without having a scanned klass");
125 _scanned_klass->record_modified_oops();
126 }
127
128 };
129
130 // Scavenges the oop in a Klass.
131 class PSScavengeKlassClosure: public KlassClosure {
132 private:
133 PSScavengeFromKlassClosure _oop_closure;
134 protected:
135 public:
136 PSScavengeKlassClosure(PSPromotionManager* pm) : _oop_closure(pm) { }
137 void do_klass(Klass* klass) {
138 // If the klass has not been dirtied we know that there's
139 // no references into the young gen and we can skip it.
140
141 #ifndef PRODUCT
142 if (TraceScavenge) {
143 ResourceMark rm;
144 gclog_or_tty->print_cr("PSScavengeKlassClosure::do_klass " PTR_FORMAT ", %s, dirty: %s",
145 p2i(klass),
146 klass->external_name(),
147 klass->has_modified_oops() ? "true" : "false");
148 }
149 #endif
150
151 if (klass->has_modified_oops()) {
152 // Clean the klass since we're going to scavenge all the metadata.
153 klass->clear_modified_oops();
154
155 // Setup the promotion manager to redirty this klass
156 // if references are left in the young gen.
157 _oop_closure.set_scanned_klass(klass);
158
159 klass->oops_do(&_oop_closure);
160
161 _oop_closure.set_scanned_klass(NULL);
162 }
163 }
164 };
165
166 #endif // SHARE_VM_GC_PARALLEL_PSSCAVENGE_INLINE_HPP
|
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_VM_GC_PARALLEL_PSSCAVENGE_INLINE_HPP
26 #define SHARE_VM_GC_PARALLEL_PSSCAVENGE_INLINE_HPP
27
28 #include "gc/parallel/cardTableExtension.hpp"
29 #include "gc/parallel/parallelScavengeHeap.hpp"
30 #include "gc/parallel/psPromotionManager.inline.hpp"
31 #include "gc/parallel/psScavenge.hpp"
32 #include "logging/log.hpp"
33 #include "memory/iterator.hpp"
34 #include "utilities/globalDefinitions.hpp"
35
36 inline void PSScavenge::save_to_space_top_before_gc() {
37 ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
38 _to_space_top_before_gc = heap->young_gen()->to_space()->top();
39 }
40
41 template <class T> inline bool PSScavenge::should_scavenge(T* p) {
42 T heap_oop = oopDesc::load_heap_oop(p);
43 return PSScavenge::is_obj_in_young(heap_oop);
44 }
45
46 template <class T>
47 inline bool PSScavenge::should_scavenge(T* p, MutableSpace* to_space) {
48 if (should_scavenge(p)) {
49 oop obj = oopDesc::load_decode_heap_oop_not_null(p);
50 // Skip objects copied to to_space since the scavenge started.
51 HeapWord* const addr = (HeapWord*)obj;
52 return addr < to_space_top_before_gc() || addr >= to_space->end();
123 private:
124 void do_klass_barrier() {
125 assert(_scanned_klass != NULL, "Should not be called without having a scanned klass");
126 _scanned_klass->record_modified_oops();
127 }
128
129 };
130
131 // Scavenges the oop in a Klass.
132 class PSScavengeKlassClosure: public KlassClosure {
133 private:
134 PSScavengeFromKlassClosure _oop_closure;
135 protected:
136 public:
137 PSScavengeKlassClosure(PSPromotionManager* pm) : _oop_closure(pm) { }
138 void do_klass(Klass* klass) {
139 // If the klass has not been dirtied we know that there's
140 // no references into the young gen and we can skip it.
141
142 #ifndef PRODUCT
143 ResourceMark rm;
144 log_develop(gc, scavenge)("PSScavengeKlassClosure::do_klass " PTR_FORMAT ", %s, dirty: %s",
145 p2i(klass),
146 klass->external_name(),
147 klass->has_modified_oops() ? "true" : "false");
148 #endif
149
150 if (klass->has_modified_oops()) {
151 // Clean the klass since we're going to scavenge all the metadata.
152 klass->clear_modified_oops();
153
154 // Setup the promotion manager to redirty this klass
155 // if references are left in the young gen.
156 _oop_closure.set_scanned_klass(klass);
157
158 klass->oops_do(&_oop_closure);
159
160 _oop_closure.set_scanned_klass(NULL);
161 }
162 }
163 };
164
165 #endif // SHARE_VM_GC_PARALLEL_PSSCAVENGE_INLINE_HPP
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