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_G1_G1MARKSTACK_INLINE_HPP
26 #define SHARE_VM_GC_G1_G1MARKSTACK_INLINE_HPP
27
28 #include "gc/g1/g1Allocator.inline.hpp"
29 #include "gc/g1/g1ConcurrentMarkBitMap.inline.hpp"
30 #include "gc/g1/g1FullGCMarker.hpp"
31 #include "gc/g1/g1StringDedup.hpp"
32 #include "gc/g1/g1StringDedupQueue.hpp"
33 #include "gc/shared/preservedMarks.inline.hpp"
34 #include "utilities/debug.hpp"
35
36 inline bool G1FullGCMarker::mark_object(oop obj) {
37 // Not marking closed archive objects.
38 if (G1ArchiveAllocator::is_closed_archive_object(obj)) {
39 return false;
40 }
41
42 // Try to mark.
43 if (!_bitmap->par_mark(obj)) {
44 // Lost mark race.
45 return false;
46 }
47
48 // Marked by us, preserve if needed.
49 markOop mark = obj->mark();
50 if (mark->must_be_preserved(obj) &&
51 !G1ArchiveAllocator::is_open_archive_object(obj)) {
52 preserved_stack()->push(obj, mark);
53 }
54
55 // Check if deduplicatable string.
56 if (G1StringDedup::is_enabled()) {
57 G1StringDedup::enqueue_from_mark(obj, _worker_id);
58 }
59 return true;
60 }
61
62 template <class T> inline void G1FullGCMarker::mark_and_push(T* p) {
63 T heap_oop = oopDesc::load_heap_oop(p);
64 if (!oopDesc::is_null(heap_oop)) {
65 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
66 if (mark_object(obj)) {
67 _oop_stack.push(obj);
68 assert(_bitmap->is_marked(obj), "Must be marked now - map self");
69 } else {
70 assert(_bitmap->is_marked(obj) || G1ArchiveAllocator::is_closed_archive_object(obj),
71 "Must be marked by other or closed archive object");
72 }
73 }
74 }
75
76 inline bool G1FullGCMarker::is_empty() {
77 return _oop_stack.is_empty() && _objarray_stack.is_empty();
78 }
79
80 inline bool G1FullGCMarker::pop_object(oop& oop) {
81 return _oop_stack.pop_overflow(oop) || _oop_stack.pop_local(oop);
82 }
83
84 inline void G1FullGCMarker::push_objarray(oop obj, size_t index) {
85 ObjArrayTask task(obj, index);
|
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_G1_G1MARKSTACK_INLINE_HPP
26 #define SHARE_VM_GC_G1_G1MARKSTACK_INLINE_HPP
27
28 #include "gc/g1/g1Allocator.inline.hpp"
29 #include "gc/g1/g1ConcurrentMarkBitMap.inline.hpp"
30 #include "gc/g1/g1FullGCMarker.hpp"
31 #include "gc/g1/g1StringDedup.hpp"
32 #include "gc/g1/g1StringDedupQueue.hpp"
33 #include "gc/shared/preservedMarks.inline.hpp"
34 #include "oops/access.inline.hpp"
35 #include "oops/compressedOops.inline.hpp"
36 #include "utilities/debug.hpp"
37
38 inline bool G1FullGCMarker::mark_object(oop obj) {
39 // Not marking closed archive objects.
40 if (G1ArchiveAllocator::is_closed_archive_object(obj)) {
41 return false;
42 }
43
44 // Try to mark.
45 if (!_bitmap->par_mark(obj)) {
46 // Lost mark race.
47 return false;
48 }
49
50 // Marked by us, preserve if needed.
51 markOop mark = obj->mark();
52 if (mark->must_be_preserved(obj) &&
53 !G1ArchiveAllocator::is_open_archive_object(obj)) {
54 preserved_stack()->push(obj, mark);
55 }
56
57 // Check if deduplicatable string.
58 if (G1StringDedup::is_enabled()) {
59 G1StringDedup::enqueue_from_mark(obj, _worker_id);
60 }
61 return true;
62 }
63
64 template <class T> inline void G1FullGCMarker::mark_and_push(T* p) {
65 T heap_oop = RawAccess<>::oop_load(p);
66 if (!CompressedOops::is_null(heap_oop)) {
67 oop obj = CompressedOops::decode_not_null(heap_oop);
68 if (mark_object(obj)) {
69 _oop_stack.push(obj);
70 assert(_bitmap->is_marked(obj), "Must be marked now - map self");
71 } else {
72 assert(_bitmap->is_marked(obj) || G1ArchiveAllocator::is_closed_archive_object(obj),
73 "Must be marked by other or closed archive object");
74 }
75 }
76 }
77
78 inline bool G1FullGCMarker::is_empty() {
79 return _oop_stack.is_empty() && _objarray_stack.is_empty();
80 }
81
82 inline bool G1FullGCMarker::pop_object(oop& oop) {
83 return _oop_stack.pop_overflow(oop) || _oop_stack.pop_local(oop);
84 }
85
86 inline void G1FullGCMarker::push_objarray(oop obj, size_t index) {
87 ObjArrayTask task(obj, index);
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