281 char* print_value_string();
282
283 // verification operations
284 void verify_on(outputStream* st);
285 void verify();
286
287 // locking operations
288 bool is_locked() const;
289 bool is_unlocked() const;
290 bool has_bias_pattern() const;
291
292 // asserts
293 bool is_oop(bool ignore_mark_word = false) const;
294 bool is_oop_or_null(bool ignore_mark_word = false) const;
295 #ifndef PRODUCT
296 bool is_unlocked_oop() const;
297 #endif
298
299 // garbage collection
300 bool is_gc_marked() const;
301 // Apply "MarkSweep::mark_and_push" to (the address of) every non-NULL
302 // reference field in "this".
303 void follow_contents(void);
304
305 #if INCLUDE_ALL_GCS
306 // Parallel Scavenge
307 void push_contents(PSPromotionManager* pm);
308
309 // Parallel Old
310 void update_contents(ParCompactionManager* cm);
311
312 void follow_contents(ParCompactionManager* cm);
313 #endif // INCLUDE_ALL_GCS
314
315 bool is_scavengable() const;
316
317 // Forward pointer operations for scavenge
318 bool is_forwarded() const;
319
320 void forward_to(oop p);
321 bool cas_forward_to(oop p, markOop compare);
322
323 #if INCLUDE_ALL_GCS
324 // Like "forward_to", but inserts the forwarding pointer atomically.
325 // Exactly one thread succeeds in inserting the forwarding pointer, and
326 // this call returns "NULL" for that thread; any other thread has the
327 // value of the forwarding pointer returned and does not modify "this".
328 oop forward_to_atomic(oop p);
329 #endif // INCLUDE_ALL_GCS
330
331 oop forwardee() const;
332
333 // Age of object during scavenge
334 uint age() const;
335 void incr_age();
336
337 // Adjust all pointers in this object to point at it's forwarded location and
338 // return the size of this oop. This is used by the MarkSweep collector.
339 int adjust_pointers();
340
341 // mark-sweep support
342 void follow_body(int begin, int end);
343
344 // Fast access to barrier set
345 static BarrierSet* bs() { return _bs; }
346 static void set_bs(BarrierSet* bs) { _bs = bs; }
347
348 // iterators, returns size of object
349 #define OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
350 int oop_iterate(OopClosureType* blk); \
351 int oop_iterate(OopClosureType* blk, MemRegion mr); // Only in mr.
352
353 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_DECL)
354 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_DECL)
355
356 #if INCLUDE_ALL_GCS
357
358 #define OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix) \
359 int oop_iterate_backwards(OopClosureType* blk);
360
361 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_BACKWARDS_DECL)
362 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_BACKWARDS_DECL)
363 #endif
364
365 int oop_iterate_no_header(OopClosure* bk);
366 int oop_iterate_no_header(OopClosure* bk, MemRegion mr);
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281 char* print_value_string();
282
283 // verification operations
284 void verify_on(outputStream* st);
285 void verify();
286
287 // locking operations
288 bool is_locked() const;
289 bool is_unlocked() const;
290 bool has_bias_pattern() const;
291
292 // asserts
293 bool is_oop(bool ignore_mark_word = false) const;
294 bool is_oop_or_null(bool ignore_mark_word = false) const;
295 #ifndef PRODUCT
296 bool is_unlocked_oop() const;
297 #endif
298
299 // garbage collection
300 bool is_gc_marked() const;
301
302 bool is_scavengable() const;
303
304 // Forward pointer operations for scavenge
305 bool is_forwarded() const;
306
307 void forward_to(oop p);
308 bool cas_forward_to(oop p, markOop compare);
309
310 #if INCLUDE_ALL_GCS
311 // Like "forward_to", but inserts the forwarding pointer atomically.
312 // Exactly one thread succeeds in inserting the forwarding pointer, and
313 // this call returns "NULL" for that thread; any other thread has the
314 // value of the forwarding pointer returned and does not modify "this".
315 oop forward_to_atomic(oop p);
316 #endif // INCLUDE_ALL_GCS
317
318 oop forwardee() const;
319
320 // Age of object during scavenge
321 uint age() const;
322 void incr_age();
323
324
325 // mark-sweep support
326 void follow_body(int begin, int end);
327
328 // Fast access to barrier set
329 static BarrierSet* bs() { return _bs; }
330 static void set_bs(BarrierSet* bs) { _bs = bs; }
331
332 // Garbage Collection support
333
334 // Mark Sweep
335 void ms_follow_contents();
336 // Adjust all pointers in this object to point at it's forwarded location and
337 // return the size of this oop. This is used by the MarkSweep collector.
338 int ms_adjust_pointers();
339 #if INCLUDE_ALL_GCS
340 // Parallel Compact
341 void pc_follow_contents(ParCompactionManager* pc);
342 void pc_update_contents();
343 // Parallel Scavenge
344 void ps_push_contents(PSPromotionManager* pm);
345 #endif
346
347
348 // iterators, returns size of object
349 #define OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
350 int oop_iterate(OopClosureType* blk); \
351 int oop_iterate(OopClosureType* blk, MemRegion mr); // Only in mr.
352
353 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_DECL)
354 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_DECL)
355
356 #if INCLUDE_ALL_GCS
357
358 #define OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix) \
359 int oop_iterate_backwards(OopClosureType* blk);
360
361 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_BACKWARDS_DECL)
362 ALL_OOP_OOP_ITERATE_CLOSURES_2(OOP_ITERATE_BACKWARDS_DECL)
363 #endif
364
365 int oop_iterate_no_header(OopClosure* bk);
366 int oop_iterate_no_header(OopClosure* bk, MemRegion mr);
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