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 #ifndef SHARE_CDS_HEAPSHARED_HPP
26 #define SHARE_CDS_HEAPSHARED_HPP
27
28 #include "cds/aotMetaspace.hpp"
29 #include "cds/dumpTimeClassInfo.hpp"
30 #include "classfile/compactHashtable.hpp"
31 #include "classfile/javaClasses.hpp"
32 #include "gc/shared/gc_globals.hpp"
33 #include "memory/allocation.hpp"
34 #include "memory/allStatic.hpp"
35 #include "oops/compressedOops.hpp"
36 #include "oops/oop.hpp"
37 #include "oops/oopHandle.hpp"
38 #include "oops/oopsHierarchy.hpp"
39 #include "utilities/growableArray.hpp"
40 #include "utilities/hashTable.hpp"
41
42 #if INCLUDE_CDS_JAVA_HEAP
43 class DumpedInternedStrings;
44 class FileMapInfo;
45 class KlassSubGraphInfo;
46 class MetaspaceObjToOopHandleTable;
47 class ResourceBitMap;
48
257
258 static KlassSubGraphInfo* init_subgraph_info(Klass *k, bool is_full_module_graph);
259 static KlassSubGraphInfo* get_subgraph_info(Klass *k);
260
261 static void init_subgraph_entry_fields(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
262 static void init_subgraph_entry_fields(ArchivableStaticFieldInfo fields[], TRAPS);
263
264 // UseCompressedOops only: Used by decode_from_archive
265 static address _narrow_oop_base;
266 static int _narrow_oop_shift;
267
268 // !UseCompressedOops only: used to relocate pointers to the archived objects
269 static ptrdiff_t _runtime_delta;
270
271 typedef ResizeableHashTable<oop, bool,
272 AnyObj::C_HEAP,
273 mtClassShared,
274 HeapShared::oop_hash> SeenObjectsTable;
275
276 static SeenObjectsTable *_seen_objects_table;
277
278 // The "special subgraph" contains all the archived objects that are reachable
279 // from the following roots:
280 // - interned strings
281 // - Klass::java_mirror() -- including aot-initialized mirrors such as those of Enum klasses.
282 // - ConstantPool::resolved_references()
283 // - Universe::<xxx>_exception_instance()
284 static KlassSubGraphInfo* _dump_time_special_subgraph; // for collecting info during dump time
285 static ArchivedKlassSubGraphInfoRecord* _run_time_special_subgraph; // for initializing classes during run time.
286
287 static GrowableArrayCHeap<oop, mtClassShared>* _pending_roots;
288 static GrowableArrayCHeap<OopHandle, mtClassShared>* _root_segments;
289 static int _root_segment_max_size_elems;
290 static OopHandle _scratch_basic_type_mirrors[T_VOID+1];
291 static MetaspaceObjToOopHandleTable* _scratch_objects_table;
292
293 static void init_seen_objects_table() {
294 assert(_seen_objects_table == nullptr, "must be");
295 _seen_objects_table = new (mtClass)SeenObjectsTable(INITIAL_TABLE_SIZE, MAX_TABLE_SIZE);
296 }
297 static void delete_seen_objects_table() {
298 assert(_seen_objects_table != nullptr, "must be");
299 delete _seen_objects_table;
300 _seen_objects_table = nullptr;
301 }
302
303 // Statistics (for one round of start_recording_subgraph ... done_recording_subgraph)
304 static int _num_new_walked_objs;
305 static int _num_new_archived_objs;
306 static int _num_old_recorded_klasses;
307
308 // Statistics (for all archived subgraphs)
309 static int _num_total_subgraph_recordings;
310 static int _num_total_walked_objs;
311 static int _num_total_archived_objs;
312 static int _num_total_recorded_klasses;
313 static int _num_total_verifications;
314
315 static void start_recording_subgraph(InstanceKlass *k, const char* klass_name,
316 bool is_full_module_graph);
317 static void done_recording_subgraph(InstanceKlass *k, const char* klass_name);
318
319 static bool has_been_seen_during_subgraph_recording(oop obj);
320 static void set_has_been_seen_during_subgraph_recording(oop obj);
321 static bool archive_object(oop obj, oop referrer, KlassSubGraphInfo* subgraph_info);
322
353 oop _referrer;
354 int _level;
355
356 public:
357 PendingOop() : _obj(nullptr), _referrer(nullptr), _level(-1) {}
358 PendingOop(oop obj, oop referrer, int level) : _obj(obj), _referrer(referrer), _level(level) {}
359
360 oop obj() const { return _obj; }
361 oop referrer() const { return _referrer; }
362 int level() const { return _level; }
363 };
364
365 class OopFieldPusher;
366 using PendingOopStack = GrowableArrayCHeap<PendingOop, mtClassShared>;
367
368 static PendingOop _object_being_archived;
369 static bool walk_one_object(PendingOopStack* stack, int level, KlassSubGraphInfo* subgraph_info,
370 oop orig_obj, oop referrer);
371
372 public:
373 static void reset_archived_object_states(TRAPS);
374 static void create_archived_object_cache() {
375 _archived_object_cache =
376 new (mtClass)ArchivedObjectCache(INITIAL_TABLE_SIZE, MAX_TABLE_SIZE);
377 }
378 static void destroy_archived_object_cache() {
379 delete _archived_object_cache;
380 _archived_object_cache = nullptr;
381 }
382 static ArchivedObjectCache* archived_object_cache() {
383 return _archived_object_cache;
384 }
385
386 static CachedOopInfo* get_cached_oop_info(oop orig_obj) {
387 OopHandle oh(&orig_obj);
388 return _archived_object_cache->get(oh);
389 }
390
391 static int archive_exception_instance(oop exception);
392
393 static bool archive_reachable_objects_from(int level,
394 KlassSubGraphInfo* subgraph_info,
395 oop orig_obj);
396
397 static void add_to_dumped_interned_strings(oop string);
398 static bool is_dumped_interned_string(oop o);
399
400 // Scratch objects for archiving Klass::java_mirror()
401 static void set_scratch_java_mirror(Klass* k, oop mirror);
402 static void remove_scratch_objects(Klass* k);
403 static void get_pointer_info(oop src_obj, bool& has_oop_pointers, bool& has_native_pointers);
404 static void set_has_native_pointers(oop src_obj);
405
406 // We use the HeapShared::roots() array to make sure that objects stored in the
407 // archived heap region are not prematurely collected. These roots include:
408 //
409 // - mirrors of classes that have not yet been loaded.
410 // - ConstantPool::resolved_references() of classes that have not yet been loaded.
411 // - ArchivedKlassSubGraphInfoRecords that have not been initialized
412 // - java.lang.Module objects that have not yet been added to the module graph
413 //
414 // When a mirror M becomes referenced by a newly loaded class K, M will be removed
415 // from HeapShared::roots() via clear_root(), and K will be responsible for
416 // keeping M alive.
417 //
418 // Other types of roots are also cleared similarly when they become referenced.
419
420 // Dump-time only. Returns the index of the root, which can be used at run time to read
421 // the root using get_root(index, ...).
422 static int append_root(oop obj);
423 static GrowableArrayCHeap<oop, mtClassShared>* pending_roots() { return _pending_roots; }
424
425 // Dump-time and runtime
426 static objArrayOop root_segment(int segment_idx);
427 static oop get_root(int index, bool clear=false);
428
429 // Run-time only
430 static void clear_root(int index);
431
432 static void get_segment_indexes(int index, int& segment_index, int& internal_index);
433
434 static void setup_test_class(const char* test_class_name) PRODUCT_RETURN;
435 #endif // INCLUDE_CDS_JAVA_HEAP
436
437 public:
438 static void write_heap(ArchiveHeapInfo* heap_info) NOT_CDS_JAVA_HEAP_RETURN;
439 static objArrayOop scratch_resolved_references(ConstantPool* src);
440 static void add_scratch_resolved_references(ConstantPool* src, objArrayOop dest) NOT_CDS_JAVA_HEAP_RETURN;
441 static void init_dumping() NOT_CDS_JAVA_HEAP_RETURN;
442 static void init_scratch_objects_for_basic_type_mirrors(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
443 static void init_box_classes(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
444 static bool is_heap_region(int idx) {
445 CDS_JAVA_HEAP_ONLY(return (idx == AOTMetaspace::hp);)
446 NOT_CDS_JAVA_HEAP_RETURN_(false);
447 }
448 static void delete_tables_with_raw_oops() NOT_CDS_JAVA_HEAP_RETURN;
449
450 static void resolve_classes(JavaThread* current) NOT_CDS_JAVA_HEAP_RETURN;
451 static void initialize_from_archived_subgraph(JavaThread* current, Klass* k) NOT_CDS_JAVA_HEAP_RETURN;
452
453 static void init_for_dumping(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
454 static void write_subgraph_info_table() NOT_CDS_JAVA_HEAP_RETURN;
455 static void add_root_segment(objArrayOop segment_oop) NOT_CDS_JAVA_HEAP_RETURN;
456 static void init_root_segment_sizes(int max_size_elems) NOT_CDS_JAVA_HEAP_RETURN;
457 static void serialize_tables(SerializeClosure* soc) NOT_CDS_JAVA_HEAP_RETURN;
458
459 #ifndef PRODUCT
460 static bool is_a_test_class_in_unnamed_module(Klass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
461 static void initialize_test_class_from_archive(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
462 #endif
463
464 static void initialize_java_lang_invoke(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
465 static void init_classes_for_special_subgraph(Handle loader, TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
466
467 static bool is_lambda_form_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
468 static bool is_lambda_proxy_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
469 static bool is_string_concat_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
470 static bool is_archivable_hidden_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
471
472 // Used by AOTArtifactFinder
473 static void start_scanning_for_oops();
474 static void end_scanning_for_oops();
475 static void scan_java_class(Klass* k);
476 static void scan_java_mirror(oop orig_mirror);
477 static void copy_and_rescan_aot_inited_mirror(InstanceKlass* ik);
478 };
479
480 #if INCLUDE_CDS_JAVA_HEAP
481 class DumpedInternedStrings :
482 public ResizeableHashTable<oop, bool,
483 AnyObj::C_HEAP,
484 mtClassShared,
485 HeapShared::string_oop_hash>
486 {
487 public:
488 DumpedInternedStrings(unsigned size, unsigned max_size) :
489 ResizeableHashTable<oop, bool,
490 AnyObj::C_HEAP,
491 mtClassShared,
492 HeapShared::string_oop_hash>(size, max_size) {}
493 };
494 #endif
495
496 #endif // SHARE_CDS_HEAPSHARED_HPP
|
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 #ifndef SHARE_CDS_HEAPSHARED_HPP
26 #define SHARE_CDS_HEAPSHARED_HPP
27
28 #include "cds/aotMetaspace.hpp"
29 #include "cds/cds_globals.hpp"
30 #include "cds/dumpTimeClassInfo.hpp"
31 #include "classfile/compactHashtable.hpp"
32 #include "classfile/javaClasses.hpp"
33 #include "gc/shared/gc_globals.hpp"
34 #include "memory/allocation.hpp"
35 #include "memory/allStatic.hpp"
36 #include "oops/compressedOops.hpp"
37 #include "oops/oop.hpp"
38 #include "oops/oopHandle.hpp"
39 #include "oops/oopsHierarchy.hpp"
40 #include "utilities/growableArray.hpp"
41 #include "utilities/hashTable.hpp"
42
43 #if INCLUDE_CDS_JAVA_HEAP
44 class DumpedInternedStrings;
45 class FileMapInfo;
46 class KlassSubGraphInfo;
47 class MetaspaceObjToOopHandleTable;
48 class ResourceBitMap;
49
258
259 static KlassSubGraphInfo* init_subgraph_info(Klass *k, bool is_full_module_graph);
260 static KlassSubGraphInfo* get_subgraph_info(Klass *k);
261
262 static void init_subgraph_entry_fields(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
263 static void init_subgraph_entry_fields(ArchivableStaticFieldInfo fields[], TRAPS);
264
265 // UseCompressedOops only: Used by decode_from_archive
266 static address _narrow_oop_base;
267 static int _narrow_oop_shift;
268
269 // !UseCompressedOops only: used to relocate pointers to the archived objects
270 static ptrdiff_t _runtime_delta;
271
272 typedef ResizeableHashTable<oop, bool,
273 AnyObj::C_HEAP,
274 mtClassShared,
275 HeapShared::oop_hash> SeenObjectsTable;
276
277 static SeenObjectsTable *_seen_objects_table;
278 // The "special subgraph" contains all the archived objects that are reachable
279 // from the following roots:
280 // - interned strings
281 // - Klass::java_mirror() -- including aot-initialized mirrors such as those of Enum klasses.
282 // - ConstantPool::resolved_references()
283 // - Universe::<xxx>_exception_instance()
284 static KlassSubGraphInfo* _dump_time_special_subgraph; // for collecting info during dump time
285 static ArchivedKlassSubGraphInfoRecord* _run_time_special_subgraph; // for initializing classes during run time.
286
287 static GrowableArrayCHeap<OopHandle, mtClassShared>* _pending_roots;
288 static GrowableArrayCHeap<OopHandle, mtClassShared>* _root_segments;
289 static GrowableArrayCHeap<const char*, mtClassShared>* _context; // for debugging unarchivable objects
290 static int _root_segment_max_size_elems;
291 static OopHandle _scratch_basic_type_mirrors[T_VOID+1];
292 static MetaspaceObjToOopHandleTable* _scratch_objects_table;
293
294 static void init_seen_objects_table() {
295 assert(_seen_objects_table == nullptr, "must be");
296 _seen_objects_table = new (mtClass)SeenObjectsTable(INITIAL_TABLE_SIZE, MAX_TABLE_SIZE);
297 }
298 static void delete_seen_objects_table() {
299 assert(_seen_objects_table != nullptr, "must be");
300 delete _seen_objects_table;
301 _seen_objects_table = nullptr;
302 }
303
304 class ContextMark;
305
306 // Statistics (for one round of start_recording_subgraph ... done_recording_subgraph)
307 static int _num_new_walked_objs;
308 static int _num_new_archived_objs;
309 static int _num_old_recorded_klasses;
310
311 // Statistics (for all archived subgraphs)
312 static int _num_total_subgraph_recordings;
313 static int _num_total_walked_objs;
314 static int _num_total_archived_objs;
315 static int _num_total_recorded_klasses;
316 static int _num_total_verifications;
317
318 static void start_recording_subgraph(InstanceKlass *k, const char* klass_name,
319 bool is_full_module_graph);
320 static void done_recording_subgraph(InstanceKlass *k, const char* klass_name);
321
322 static bool has_been_seen_during_subgraph_recording(oop obj);
323 static void set_has_been_seen_during_subgraph_recording(oop obj);
324 static bool archive_object(oop obj, oop referrer, KlassSubGraphInfo* subgraph_info);
325
356 oop _referrer;
357 int _level;
358
359 public:
360 PendingOop() : _obj(nullptr), _referrer(nullptr), _level(-1) {}
361 PendingOop(oop obj, oop referrer, int level) : _obj(obj), _referrer(referrer), _level(level) {}
362
363 oop obj() const { return _obj; }
364 oop referrer() const { return _referrer; }
365 int level() const { return _level; }
366 };
367
368 class OopFieldPusher;
369 using PendingOopStack = GrowableArrayCHeap<PendingOop, mtClassShared>;
370
371 static PendingOop _object_being_archived;
372 static bool walk_one_object(PendingOopStack* stack, int level, KlassSubGraphInfo* subgraph_info,
373 oop orig_obj, oop referrer);
374
375 public:
376 static void exit_on_error();
377 static void reset_archived_object_states(TRAPS);
378 static void create_archived_object_cache() {
379 _archived_object_cache =
380 new (mtClass)ArchivedObjectCache(INITIAL_TABLE_SIZE, MAX_TABLE_SIZE);
381 }
382 static void destroy_archived_object_cache() {
383 delete _archived_object_cache;
384 _archived_object_cache = nullptr;
385 }
386 static ArchivedObjectCache* archived_object_cache() {
387 return _archived_object_cache;
388 }
389
390 static CachedOopInfo* get_cached_oop_info(oop orig_obj) {
391 OopHandle oh(&orig_obj);
392 return _archived_object_cache->get(oh);
393 }
394
395 static int archive_exception_instance(oop exception);
396
397 static bool archive_reachable_objects_from(int level,
398 KlassSubGraphInfo* subgraph_info,
399 oop orig_obj);
400
401 static void add_to_dumped_interned_strings(oop string);
402 static bool is_dumped_interned_string(oop o);
403
404 static void track_scratch_object(oop orig_obj, oop scratch_obj);
405
406 // Scratch objects for archiving Klass::java_mirror()
407 static void set_scratch_java_mirror(Klass* k, oop mirror);
408 static void remove_scratch_objects(Klass* k);
409 static void get_pointer_info(oop src_obj, bool& has_oop_pointers, bool& has_native_pointers);
410 static void set_has_native_pointers(oop src_obj);
411
412 // We use the HeapShared::roots() array to make sure that objects stored in the
413 // archived heap region are not prematurely collected. These roots include:
414 //
415 // - mirrors of classes that have not yet been loaded.
416 // - ConstantPool::resolved_references() of classes that have not yet been loaded.
417 // - ArchivedKlassSubGraphInfoRecords that have not been initialized
418 // - java.lang.Module objects that have not yet been added to the module graph
419 //
420 // When a mirror M becomes referenced by a newly loaded class K, M will be removed
421 // from HeapShared::roots() via clear_root(), and K will be responsible for
422 // keeping M alive.
423 //
424 // Other types of roots are also cleared similarly when they become referenced.
425
426 // Dump-time only. Returns the index of the root, which can be used at run time to read
427 // the root using get_root(index, ...).
428 static int append_root(oop obj);
429 static GrowableArrayCHeap<OopHandle, mtClassShared>* pending_roots() { return _pending_roots; }
430
431 // Dump-time and runtime
432 static objArrayOop root_segment(int segment_idx);
433 static oop get_root(int index, bool clear=false);
434
435 // Run-time only
436 static void clear_root(int index);
437 static void get_segment_indexes(int index, int& segment_index, int& internal_index);
438 static void setup_test_class(const char* test_class_name) PRODUCT_RETURN;
439 #endif // INCLUDE_CDS_JAVA_HEAP
440
441 public:
442 static oop orig_to_scratch_object(oop orig_obj);
443 static void write_heap(ArchiveHeapInfo* heap_info) NOT_CDS_JAVA_HEAP_RETURN;
444 static objArrayOop scratch_resolved_references(ConstantPool* src);
445 static void add_scratch_resolved_references(ConstantPool* src, objArrayOop dest) NOT_CDS_JAVA_HEAP_RETURN;
446 static void init_dumping() NOT_CDS_JAVA_HEAP_RETURN;
447 static void init_scratch_objects_for_basic_type_mirrors(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
448 static void init_box_classes(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
449 static bool is_heap_region(int idx) {
450 CDS_JAVA_HEAP_ONLY(return (idx == AOTMetaspace::hp);)
451 NOT_CDS_JAVA_HEAP_RETURN_(false);
452 }
453 static void delete_tables_with_raw_oops() NOT_CDS_JAVA_HEAP_RETURN;
454
455 static void resolve_classes(JavaThread* current) NOT_CDS_JAVA_HEAP_RETURN;
456 static void initialize_from_archived_subgraph(JavaThread* current, Klass* k) NOT_CDS_JAVA_HEAP_RETURN;
457
458 static void init_for_dumping(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
459 static void write_subgraph_info_table() NOT_CDS_JAVA_HEAP_RETURN;
460 static void add_root_segment(objArrayOop segment_oop) NOT_CDS_JAVA_HEAP_RETURN;
461 static void init_root_segment_sizes(int max_size_elems) NOT_CDS_JAVA_HEAP_RETURN;
462 static void serialize_tables(SerializeClosure* soc) NOT_CDS_JAVA_HEAP_RETURN;
463
464 #ifndef PRODUCT
465 static bool is_a_test_class_in_unnamed_module(Klass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
466 static void initialize_test_class_from_archive(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
467 #endif
468
469 static void add_to_permanent_oop_table(oop obj, int offset);
470
471 // AOT-compile time only: get a stable index for an archived object.
472 // Returns 0 if obj is not archived.
473 static int get_archived_object_permanent_index(oop obj) NOT_CDS_JAVA_HEAP_RETURN_(-1);
474 // Runtime only: get back the same object for an index returned by
475 // get_archived_object_permanent_index().
476 static oop get_archived_object(int permanent_index) NOT_CDS_JAVA_HEAP_RETURN_(nullptr);
477
478 static void initialize_java_lang_invoke(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
479 static void init_classes_for_special_subgraph(Handle loader, TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
480
481 static bool is_core_java_lang_invoke_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
482 static bool is_lambda_form_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
483 static bool is_lambda_proxy_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
484 static bool is_string_concat_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
485 static bool is_archivable_hidden_klass(InstanceKlass* ik) NOT_CDS_JAVA_HEAP_RETURN_(false);
486
487 // Used by AOTArtifactFinder
488 static void start_scanning_for_oops();
489 static void end_scanning_for_oops();
490 static void scan_java_class(Klass* k);
491 static void scan_java_mirror(oop orig_mirror);
492 static void copy_and_rescan_aot_inited_mirror(InstanceKlass* ik);
493 };
494
495 class CachedCodeDirectoryInternal {
496 int _permanent_oop_count;
497 int* _permanent_oop_offsets; // offset of each permanent object from the bottom of the archived heap
498 public:
499 void dumptime_init_internal() NOT_CDS_JAVA_HEAP_RETURN;
500 void runtime_init_internal() NOT_CDS_JAVA_HEAP_RETURN;
501 };
502
503 #if INCLUDE_CDS_JAVA_HEAP
504 class DumpedInternedStrings :
505 public ResizeableHashTable<oop, bool,
506 AnyObj::C_HEAP,
507 mtClassShared,
508 HeapShared::string_oop_hash>
509 {
510 public:
511 DumpedInternedStrings(unsigned size, unsigned max_size) :
512 ResizeableHashTable<oop, bool,
513 AnyObj::C_HEAP,
514 mtClassShared,
515 HeapShared::string_oop_hash>(size, max_size) {}
516 };
517 #endif
518
519 #endif // SHARE_CDS_HEAPSHARED_HPP
|