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_SHARED_GENOOPCLOSURES_INLINE_HPP
26 #define SHARE_VM_GC_SHARED_GENOOPCLOSURES_INLINE_HPP
27
28 #include "gc/serial/defNewGeneration.hpp"
29 #include "gc/shared/cardTableRS.hpp"
30 #include "gc/shared/genCollectedHeap.hpp"
31 #include "gc/shared/genOopClosures.hpp"
32 #include "gc/shared/generation.hpp"
33 #include "gc/shared/space.hpp"
34
35 inline OopsInGenClosure::OopsInGenClosure(Generation* gen) :
36 ExtendedOopClosure(gen->ref_processor()), _orig_gen(gen), _rs(NULL) {
37 set_generation(gen);
38 }
39
40 inline void OopsInGenClosure::set_generation(Generation* gen) {
41 _gen = gen;
42 _gen_boundary = _gen->reserved().start();
43 // Barrier set for the heap, must be set after heap is initialized
44 if (_rs == NULL) {
45 _rs = GenCollectedHeap::heap()->rem_set();
46 }
47 }
48
49 template <class T> inline void OopsInGenClosure::do_barrier(T* p) {
50 assert(generation()->is_in_reserved(p), "expected ref in generation");
51 T heap_oop = oopDesc::load_heap_oop(p);
52 assert(!oopDesc::is_null(heap_oop), "expected non-null oop");
53 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
54 // If p points to a younger generation, mark the card.
55 if ((HeapWord*)obj < _gen_boundary) {
56 _rs->inline_write_ref_field_gc(p, obj);
57 }
58 }
59
60 template <class T> inline void OopsInGenClosure::par_do_barrier(T* p) {
61 assert(generation()->is_in_reserved(p), "expected ref in generation");
62 T heap_oop = oopDesc::load_heap_oop(p);
63 assert(!oopDesc::is_null(heap_oop), "expected non-null oop");
64 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
65 // If p points to a younger generation, mark the card.
66 if ((HeapWord*)obj < gen_boundary()) {
67 rs()->write_ref_field_gc_par(p, obj);
68 }
|
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_SHARED_GENOOPCLOSURES_INLINE_HPP
26 #define SHARE_VM_GC_SHARED_GENOOPCLOSURES_INLINE_HPP
27
28 #include "gc/serial/defNewGeneration.hpp"
29 #include "gc/shared/cardTableRS.hpp"
30 #include "gc/shared/genCollectedHeap.hpp"
31 #include "gc/shared/genOopClosures.hpp"
32 #include "gc/shared/generation.hpp"
33 #include "gc/shared/space.hpp"
34
35 inline OopsInGenClosure::OopsInGenClosure(Generation* gen) :
36 ExtendedOopClosure(gen->ref_processor()), _gen(NULL), _rs(NULL) {
37 set_generation(gen);
38 }
39
40 inline void OopsInGenClosure::set_generation(Generation* gen) {
41 assert(_gen == NULL, "Generation already initialized");
42 _gen = gen;
43 _gen_boundary = _gen->reserved().start();
44 // Barrier set for the heap, must be set after heap is initialized
45 if (_rs == NULL) {
46 _rs = GenCollectedHeap::heap()->rem_set();
47 }
48 }
49
50 inline void OopsInGenClosure::assert_generation(Generation* gen) {
51 assert(_gen == gen, "Generations mismatch. Fix it now!!");
52 }
53
54 template <class T> inline void OopsInGenClosure::do_barrier(T* p) {
55 assert(generation()->is_in_reserved(p), "expected ref in generation");
56 T heap_oop = oopDesc::load_heap_oop(p);
57 assert(!oopDesc::is_null(heap_oop), "expected non-null oop");
58 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
59 // If p points to a younger generation, mark the card.
60 if ((HeapWord*)obj < _gen_boundary) {
61 _rs->inline_write_ref_field_gc(p, obj);
62 }
63 }
64
65 template <class T> inline void OopsInGenClosure::par_do_barrier(T* p) {
66 assert(generation()->is_in_reserved(p), "expected ref in generation");
67 T heap_oop = oopDesc::load_heap_oop(p);
68 assert(!oopDesc::is_null(heap_oop), "expected non-null oop");
69 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
70 // If p points to a younger generation, mark the card.
71 if ((HeapWord*)obj < gen_boundary()) {
72 rs()->write_ref_field_gc_par(p, obj);
73 }
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