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_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP
26 #define SHARE_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP
27
28 #include "classfile/javaClasses.inline.hpp"
29 #include "gc/shared/referenceProcessor.hpp"
30 #include "logging/log.hpp"
31 #include "oops/instanceKlass.inline.hpp"
32 #include "oops/instanceRefKlass.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "utilities/debug.hpp"
35 #include "utilities/globalDefinitions.hpp"
36 #include "utilities/macros.hpp"
37
38 template <bool nv, typename T, class OopClosureType, class Contains>
39 void InstanceRefKlass::do_referent(oop obj, OopClosureType* closure, Contains& contains) {
40 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr_raw(obj);
41 if (contains(referent_addr)) {
42 Devirtualizer<nv>::do_oop(closure, referent_addr);
43 }
44 }
45
46 template <bool nv, typename T, class OopClosureType, class Contains>
47 void InstanceRefKlass::do_next(oop obj, OopClosureType* closure, Contains& contains) {
48 T* next_addr = (T*)java_lang_ref_Reference::next_addr_raw(obj);
49 if (contains(next_addr)) {
50 Devirtualizer<nv>::do_oop(closure, next_addr);
51 }
52 }
53
54 template <bool nv, typename T, class OopClosureType, class Contains>
55 void InstanceRefKlass::do_discovered(oop obj, OopClosureType* closure, Contains& contains) {
56 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr_raw(obj);
57 if (contains(discovered_addr)) {
58 Devirtualizer<nv>::do_oop(closure, discovered_addr);
59 }
60 }
61
62 template <typename T, class OopClosureType>
63 bool InstanceRefKlass::try_discover(oop obj, ReferenceType type, OopClosureType* closure) {
64 ReferenceProcessor* rp = closure->ref_processor();
65 if (rp != NULL) {
66 T referent_oop = oopDesc::load_heap_oop((T*)java_lang_ref_Reference::referent_addr_raw(obj));
67 if (!oopDesc::is_null(referent_oop)) {
68 oop referent = oopDesc::decode_heap_oop_not_null(referent_oop);
69 if (!referent->is_gc_marked()) {
70 // Only try to discover if not yet marked.
71 return rp->discover_reference(obj, type);
72 }
73 }
74 }
75 return false;
76 }
77
78 template <bool nv, typename T, class OopClosureType, class Contains>
79 void InstanceRefKlass::oop_oop_iterate_discovery(oop obj, ReferenceType type, OopClosureType* closure, Contains& contains) {
80 // Try to discover reference and return if it succeeds.
81 if (try_discover<T>(obj, type, closure)) {
82 return;
83 }
84
85 // Treat referent as normal oop.
86 do_referent<nv, T>(obj, closure, contains);
87
88 // Treat discovered as normal oop, if ref is not "active" (next non-NULL).
89 T next_oop = oopDesc::load_heap_oop((T*)java_lang_ref_Reference::next_addr_raw(obj));
90 if (!oopDesc::is_null(next_oop)) {
91 do_discovered<nv, T>(obj, closure, contains);
92 }
93
94 // Treat next as normal oop.
95 do_next<nv, T>(obj, closure, contains);
96 }
97
98 template <bool nv, typename T, class OopClosureType, class Contains>
99 void InstanceRefKlass::oop_oop_iterate_fields(oop obj, OopClosureType* closure, Contains& contains) {
100 do_referent<nv, T>(obj, closure, contains);
101 do_discovered<nv, T>(obj, closure, contains);
102 do_next<nv, T>(obj, closure, contains);
103 }
104
105 template <bool nv, typename T, class OopClosureType, class Contains>
106 void InstanceRefKlass::oop_oop_iterate_discovered_and_discovery(oop obj, ReferenceType type, OopClosureType* closure, Contains& contains) {
107 // Explicitly apply closure to the discovered field.
108 do_discovered<nv, T>(obj, closure, contains);
109 // Then do normal reference processing with discovery.
110 oop_oop_iterate_discovery<nv, T>(obj, type, closure, contains);
178 }
179 #endif // INCLUDE_ALL_GCS
180
181
182 template <bool nv, class OopClosureType>
183 void InstanceRefKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {
184 InstanceKlass::oop_oop_iterate_bounded<nv>(obj, closure, mr);
185
186 oop_oop_iterate_ref_processing_bounded<nv>(obj, closure, mr);
187 }
188
189 #ifdef ASSERT
190 template <typename T>
191 void InstanceRefKlass::trace_reference_gc(const char *s, oop obj) {
192 T* referent_addr = (T*) java_lang_ref_Reference::referent_addr_raw(obj);
193 T* next_addr = (T*) java_lang_ref_Reference::next_addr_raw(obj);
194 T* discovered_addr = (T*) java_lang_ref_Reference::discovered_addr_raw(obj);
195
196 log_develop_trace(gc, ref)("InstanceRefKlass %s for obj " PTR_FORMAT, s, p2i(obj));
197 log_develop_trace(gc, ref)(" referent_addr/* " PTR_FORMAT " / " PTR_FORMAT,
198 p2i(referent_addr), p2i(referent_addr ? (address)oopDesc::load_decode_heap_oop(referent_addr) : NULL));
199 log_develop_trace(gc, ref)(" next_addr/* " PTR_FORMAT " / " PTR_FORMAT,
200 p2i(next_addr), p2i(next_addr ? (address)oopDesc::load_decode_heap_oop(next_addr) : NULL));
201 log_develop_trace(gc, ref)(" discovered_addr/* " PTR_FORMAT " / " PTR_FORMAT,
202 p2i(discovered_addr), p2i(discovered_addr ? (address)oopDesc::load_decode_heap_oop(discovered_addr) : NULL));
203 }
204 #endif
205
206 // Macro to define InstanceRefKlass::oop_oop_iterate for virtual/nonvirtual for
207 // all closures. Macros calling macros above for each oop size.
208 #define ALL_INSTANCE_REF_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
209 OOP_OOP_ITERATE_DEFN( InstanceRefKlass, OopClosureType, nv_suffix) \
210 OOP_OOP_ITERATE_DEFN_BOUNDED( InstanceRefKlass, OopClosureType, nv_suffix) \
211 OOP_OOP_ITERATE_DEFN_BACKWARDS(InstanceRefKlass, OopClosureType, nv_suffix)
212
213 #endif // SHARE_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP
|
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_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP
26 #define SHARE_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP
27
28 #include "classfile/javaClasses.inline.hpp"
29 #include "gc/shared/referenceProcessor.hpp"
30 #include "logging/log.hpp"
31 #include "oops/access.inline.hpp"
32 #include "oops/compressedOops.inline.hpp"
33 #include "oops/instanceKlass.inline.hpp"
34 #include "oops/instanceRefKlass.hpp"
35 #include "oops/oop.inline.hpp"
36 #include "utilities/debug.hpp"
37 #include "utilities/globalDefinitions.hpp"
38 #include "utilities/macros.hpp"
39
40 template <bool nv, typename T, class OopClosureType, class Contains>
41 void InstanceRefKlass::do_referent(oop obj, OopClosureType* closure, Contains& contains) {
42 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr_raw(obj);
43 if (contains(referent_addr)) {
44 Devirtualizer<nv>::do_oop(closure, referent_addr);
45 }
46 }
47
48 template <bool nv, typename T, class OopClosureType, class Contains>
49 void InstanceRefKlass::do_next(oop obj, OopClosureType* closure, Contains& contains) {
50 T* next_addr = (T*)java_lang_ref_Reference::next_addr_raw(obj);
51 if (contains(next_addr)) {
52 Devirtualizer<nv>::do_oop(closure, next_addr);
53 }
54 }
55
56 template <bool nv, typename T, class OopClosureType, class Contains>
57 void InstanceRefKlass::do_discovered(oop obj, OopClosureType* closure, Contains& contains) {
58 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr_raw(obj);
59 if (contains(discovered_addr)) {
60 Devirtualizer<nv>::do_oop(closure, discovered_addr);
61 }
62 }
63
64 template <typename T, class OopClosureType>
65 bool InstanceRefKlass::try_discover(oop obj, ReferenceType type, OopClosureType* closure) {
66 ReferenceProcessor* rp = closure->ref_processor();
67 if (rp != NULL) {
68 T referent_oop = RawAccess<>::oop_load((T*)java_lang_ref_Reference::referent_addr_raw(obj));
69 if (!CompressedOops::is_null(referent_oop)) {
70 oop referent = CompressedOops::decode_not_null(referent_oop);
71 if (!referent->is_gc_marked()) {
72 // Only try to discover if not yet marked.
73 return rp->discover_reference(obj, type);
74 }
75 }
76 }
77 return false;
78 }
79
80 template <bool nv, typename T, class OopClosureType, class Contains>
81 void InstanceRefKlass::oop_oop_iterate_discovery(oop obj, ReferenceType type, OopClosureType* closure, Contains& contains) {
82 // Try to discover reference and return if it succeeds.
83 if (try_discover<T>(obj, type, closure)) {
84 return;
85 }
86
87 // Treat referent as normal oop.
88 do_referent<nv, T>(obj, closure, contains);
89
90 // Treat discovered as normal oop, if ref is not "active" (next non-NULL).
91 T next_oop = RawAccess<>::oop_load((T*)java_lang_ref_Reference::next_addr_raw(obj));
92 if (!CompressedOops::is_null(next_oop)) {
93 do_discovered<nv, T>(obj, closure, contains);
94 }
95
96 // Treat next as normal oop.
97 do_next<nv, T>(obj, closure, contains);
98 }
99
100 template <bool nv, typename T, class OopClosureType, class Contains>
101 void InstanceRefKlass::oop_oop_iterate_fields(oop obj, OopClosureType* closure, Contains& contains) {
102 do_referent<nv, T>(obj, closure, contains);
103 do_discovered<nv, T>(obj, closure, contains);
104 do_next<nv, T>(obj, closure, contains);
105 }
106
107 template <bool nv, typename T, class OopClosureType, class Contains>
108 void InstanceRefKlass::oop_oop_iterate_discovered_and_discovery(oop obj, ReferenceType type, OopClosureType* closure, Contains& contains) {
109 // Explicitly apply closure to the discovered field.
110 do_discovered<nv, T>(obj, closure, contains);
111 // Then do normal reference processing with discovery.
112 oop_oop_iterate_discovery<nv, T>(obj, type, closure, contains);
180 }
181 #endif // INCLUDE_ALL_GCS
182
183
184 template <bool nv, class OopClosureType>
185 void InstanceRefKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {
186 InstanceKlass::oop_oop_iterate_bounded<nv>(obj, closure, mr);
187
188 oop_oop_iterate_ref_processing_bounded<nv>(obj, closure, mr);
189 }
190
191 #ifdef ASSERT
192 template <typename T>
193 void InstanceRefKlass::trace_reference_gc(const char *s, oop obj) {
194 T* referent_addr = (T*) java_lang_ref_Reference::referent_addr_raw(obj);
195 T* next_addr = (T*) java_lang_ref_Reference::next_addr_raw(obj);
196 T* discovered_addr = (T*) java_lang_ref_Reference::discovered_addr_raw(obj);
197
198 log_develop_trace(gc, ref)("InstanceRefKlass %s for obj " PTR_FORMAT, s, p2i(obj));
199 log_develop_trace(gc, ref)(" referent_addr/* " PTR_FORMAT " / " PTR_FORMAT,
200 p2i(referent_addr), p2i(referent_addr ? RawAccess<>::oop_load(referent_addr) : (oop)NULL));
201 log_develop_trace(gc, ref)(" next_addr/* " PTR_FORMAT " / " PTR_FORMAT,
202 p2i(next_addr), p2i(next_addr ? RawAccess<>::oop_load(next_addr) : (oop)NULL));
203 log_develop_trace(gc, ref)(" discovered_addr/* " PTR_FORMAT " / " PTR_FORMAT,
204 p2i(discovered_addr), p2i(discovered_addr ? RawAccess<>::oop_load(discovered_addr) : (oop)NULL));
205 }
206 #endif
207
208 // Macro to define InstanceRefKlass::oop_oop_iterate for virtual/nonvirtual for
209 // all closures. Macros calling macros above for each oop size.
210 #define ALL_INSTANCE_REF_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
211 OOP_OOP_ITERATE_DEFN( InstanceRefKlass, OopClosureType, nv_suffix) \
212 OOP_OOP_ITERATE_DEFN_BOUNDED( InstanceRefKlass, OopClosureType, nv_suffix) \
213 OOP_OOP_ITERATE_DEFN_BACKWARDS(InstanceRefKlass, OopClosureType, nv_suffix)
214
215 #endif // SHARE_VM_OOPS_INSTANCEREFKLASS_INLINE_HPP
|