Mercurial > hg > truffle
comparison src/share/vm/oops/oop.inline.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | ba764ed4b6f2 |
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1 /* | |
2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // Implementation of all inlined member functions defined in oop.hpp | |
26 // We need a separate file to avoid circular references | |
27 | |
28 | |
29 inline void oopDesc::release_set_mark(markOop m) { | |
30 OrderAccess::release_store_ptr(&_mark, m); | |
31 } | |
32 | |
33 inline markOop oopDesc::cas_set_mark(markOop new_mark, markOop old_mark) { | |
34 return (markOop) Atomic::cmpxchg_ptr(new_mark, &_mark, old_mark); | |
35 } | |
36 | |
37 inline void oopDesc::set_klass(klassOop k) { | |
38 // since klasses are promoted no store check is needed | |
39 assert(Universe::is_bootstrapping() || k != NULL, "must be a real klassOop"); | |
40 assert(Universe::is_bootstrapping() || k->is_klass(), "not a klassOop"); | |
41 oop_store_without_check((oop*) &_klass, (oop) k); | |
42 } | |
43 | |
44 inline void oopDesc::set_klass_to_list_ptr(oop k) { | |
45 // This is only to be used during GC, for from-space objects, so no | |
46 // barrier is needed. | |
47 _klass = (klassOop)k; | |
48 } | |
49 | |
50 inline void oopDesc::init_mark() { set_mark(markOopDesc::prototype_for_object(this)); } | |
51 inline Klass* oopDesc::blueprint() const { return klass()->klass_part(); } | |
52 | |
53 inline bool oopDesc::is_a(klassOop k) const { return blueprint()->is_subtype_of(k); } | |
54 | |
55 inline bool oopDesc::is_instance() const { return blueprint()->oop_is_instance(); } | |
56 inline bool oopDesc::is_instanceRef() const { return blueprint()->oop_is_instanceRef(); } | |
57 inline bool oopDesc::is_array() const { return blueprint()->oop_is_array(); } | |
58 inline bool oopDesc::is_objArray() const { return blueprint()->oop_is_objArray(); } | |
59 inline bool oopDesc::is_typeArray() const { return blueprint()->oop_is_typeArray(); } | |
60 inline bool oopDesc::is_javaArray() const { return blueprint()->oop_is_javaArray(); } | |
61 inline bool oopDesc::is_symbol() const { return blueprint()->oop_is_symbol(); } | |
62 inline bool oopDesc::is_klass() const { return blueprint()->oop_is_klass(); } | |
63 inline bool oopDesc::is_thread() const { return blueprint()->oop_is_thread(); } | |
64 inline bool oopDesc::is_method() const { return blueprint()->oop_is_method(); } | |
65 inline bool oopDesc::is_constMethod() const { return blueprint()->oop_is_constMethod(); } | |
66 inline bool oopDesc::is_methodData() const { return blueprint()->oop_is_methodData(); } | |
67 inline bool oopDesc::is_constantPool() const { return blueprint()->oop_is_constantPool(); } | |
68 inline bool oopDesc::is_constantPoolCache() const { return blueprint()->oop_is_constantPoolCache(); } | |
69 inline bool oopDesc::is_compiledICHolder() const { return blueprint()->oop_is_compiledICHolder(); } | |
70 | |
71 inline void* oopDesc::field_base(int offset) const { return (void*)&((char*)this)[offset]; } | |
72 | |
73 inline oop* oopDesc::obj_field_addr(int offset) const { return (oop*) field_base(offset); } | |
74 inline jbyte* oopDesc::byte_field_addr(int offset) const { return (jbyte*) field_base(offset); } | |
75 inline jchar* oopDesc::char_field_addr(int offset) const { return (jchar*) field_base(offset); } | |
76 inline jboolean* oopDesc::bool_field_addr(int offset) const { return (jboolean*)field_base(offset); } | |
77 inline jint* oopDesc::int_field_addr(int offset) const { return (jint*) field_base(offset); } | |
78 inline jshort* oopDesc::short_field_addr(int offset) const { return (jshort*) field_base(offset); } | |
79 inline jlong* oopDesc::long_field_addr(int offset) const { return (jlong*) field_base(offset); } | |
80 inline jfloat* oopDesc::float_field_addr(int offset) const { return (jfloat*) field_base(offset); } | |
81 inline jdouble* oopDesc::double_field_addr(int offset) const { return (jdouble*) field_base(offset); } | |
82 | |
83 inline oop oopDesc::obj_field(int offset) const { return *obj_field_addr(offset); } | |
84 inline void oopDesc::obj_field_put(int offset, oop value) { oop_store(obj_field_addr(offset), value); } | |
85 | |
86 inline jbyte oopDesc::byte_field(int offset) const { return (jbyte) *byte_field_addr(offset); } | |
87 inline void oopDesc::byte_field_put(int offset, jbyte contents) { *byte_field_addr(offset) = (jint) contents; } | |
88 | |
89 inline jboolean oopDesc::bool_field(int offset) const { return (jboolean) *bool_field_addr(offset); } | |
90 inline void oopDesc::bool_field_put(int offset, jboolean contents) { *bool_field_addr(offset) = (jint) contents; } | |
91 | |
92 inline jchar oopDesc::char_field(int offset) const { return (jchar) *char_field_addr(offset); } | |
93 inline void oopDesc::char_field_put(int offset, jchar contents) { *char_field_addr(offset) = (jint) contents; } | |
94 | |
95 inline jint oopDesc::int_field(int offset) const { return *int_field_addr(offset); } | |
96 inline void oopDesc::int_field_put(int offset, jint contents) { *int_field_addr(offset) = contents; } | |
97 | |
98 inline jshort oopDesc::short_field(int offset) const { return (jshort) *short_field_addr(offset); } | |
99 inline void oopDesc::short_field_put(int offset, jshort contents) { *short_field_addr(offset) = (jint) contents;} | |
100 | |
101 inline jlong oopDesc::long_field(int offset) const { return *long_field_addr(offset); } | |
102 inline void oopDesc::long_field_put(int offset, jlong contents) { *long_field_addr(offset) = contents; } | |
103 | |
104 inline jfloat oopDesc::float_field(int offset) const { return *float_field_addr(offset); } | |
105 inline void oopDesc::float_field_put(int offset, jfloat contents) { *float_field_addr(offset) = contents; } | |
106 | |
107 inline jdouble oopDesc::double_field(int offset) const { return *double_field_addr(offset); } | |
108 inline void oopDesc::double_field_put(int offset, jdouble contents) { *double_field_addr(offset) = contents; } | |
109 | |
110 inline oop oopDesc::obj_field_acquire(int offset) const { return (oop)OrderAccess::load_ptr_acquire(obj_field_addr(offset)); } | |
111 inline void oopDesc::release_obj_field_put(int offset, oop value) { oop_store((volatile oop*)obj_field_addr(offset), value); } | |
112 | |
113 inline jbyte oopDesc::byte_field_acquire(int offset) const { return OrderAccess::load_acquire(byte_field_addr(offset)); } | |
114 inline void oopDesc::release_byte_field_put(int offset, jbyte contents) { OrderAccess::release_store(byte_field_addr(offset), contents); } | |
115 | |
116 inline jboolean oopDesc::bool_field_acquire(int offset) const { return OrderAccess::load_acquire(bool_field_addr(offset)); } | |
117 inline void oopDesc::release_bool_field_put(int offset, jboolean contents) { OrderAccess::release_store(bool_field_addr(offset), contents); } | |
118 | |
119 inline jchar oopDesc::char_field_acquire(int offset) const { return OrderAccess::load_acquire(char_field_addr(offset)); } | |
120 inline void oopDesc::release_char_field_put(int offset, jchar contents) { OrderAccess::release_store(char_field_addr(offset), contents); } | |
121 | |
122 inline jint oopDesc::int_field_acquire(int offset) const { return OrderAccess::load_acquire(int_field_addr(offset)); } | |
123 inline void oopDesc::release_int_field_put(int offset, jint contents) { OrderAccess::release_store(int_field_addr(offset), contents); } | |
124 | |
125 inline jshort oopDesc::short_field_acquire(int offset) const { return (jshort)OrderAccess::load_acquire(short_field_addr(offset)); } | |
126 inline void oopDesc::release_short_field_put(int offset, jshort contents) { OrderAccess::release_store(short_field_addr(offset), contents); } | |
127 | |
128 inline jlong oopDesc::long_field_acquire(int offset) const { return OrderAccess::load_acquire(long_field_addr(offset)); } | |
129 inline void oopDesc::release_long_field_put(int offset, jlong contents) { OrderAccess::release_store(long_field_addr(offset), contents); } | |
130 | |
131 inline jfloat oopDesc::float_field_acquire(int offset) const { return OrderAccess::load_acquire(float_field_addr(offset)); } | |
132 inline void oopDesc::release_float_field_put(int offset, jfloat contents) { OrderAccess::release_store(float_field_addr(offset), contents); } | |
133 | |
134 inline jdouble oopDesc::double_field_acquire(int offset) const { return OrderAccess::load_acquire(double_field_addr(offset)); } | |
135 inline void oopDesc::release_double_field_put(int offset, jdouble contents) { OrderAccess::release_store(double_field_addr(offset), contents); } | |
136 | |
137 | |
138 inline int oopDesc::size_given_klass(Klass* klass) { | |
139 int lh = klass->layout_helper(); | |
140 int s = lh >> LogHeapWordSize; // deliver size scaled by wordSize | |
141 | |
142 // lh is now a value computed at class initialization that may hint | |
143 // at the size. For instances, this is positive and equal to the | |
144 // size. For arrays, this is negative and provides log2 of the | |
145 // array element size. For other oops, it is zero and thus requires | |
146 // a virtual call. | |
147 // | |
148 // We go to all this trouble because the size computation is at the | |
149 // heart of phase 2 of mark-compaction, and called for every object, | |
150 // alive or dead. So the speed here is equal in importance to the | |
151 // speed of allocation. | |
152 | |
153 if (lh <= Klass::_lh_neutral_value) { | |
154 // The most common case is instances; fall through if so. | |
155 if (lh < Klass::_lh_neutral_value) { | |
156 // Second most common case is arrays. We have to fetch the | |
157 // length of the array, shift (multiply) it appropriately, | |
158 // up to wordSize, add the header, and align to object size. | |
159 size_t size_in_bytes; | |
160 #ifdef _M_IA64 | |
161 // The Windows Itanium Aug 2002 SDK hoists this load above | |
162 // the check for s < 0. An oop at the end of the heap will | |
163 // cause an access violation if this load is performed on a non | |
164 // array oop. Making the reference volatile prohibits this. | |
165 // (%%% please explain by what magic the length is actually fetched!) | |
166 volatile int *array_length; | |
167 array_length = (volatile int *)( (intptr_t)this + | |
168 arrayOopDesc::length_offset_in_bytes() ); | |
169 assert(array_length > 0, "Integer arithmetic problem somewhere"); | |
170 // Put into size_t to avoid overflow. | |
171 size_in_bytes = (size_t) array_length; | |
172 size_in_bytes = size_in_bytes << Klass::layout_helper_log2_element_size(lh); | |
173 #else | |
174 size_t array_length = (size_t) ((arrayOop)this)->length(); | |
175 size_in_bytes = array_length << Klass::layout_helper_log2_element_size(lh); | |
176 #endif | |
177 size_in_bytes += Klass::layout_helper_header_size(lh); | |
178 | |
179 // This code could be simplified, but by keeping array_header_in_bytes | |
180 // in units of bytes and doing it this way we can round up just once, | |
181 // skipping the intermediate round to HeapWordSize. Cast the result | |
182 // of round_to to size_t to guarantee unsigned division == right shift. | |
183 s = (int)((size_t)round_to(size_in_bytes, MinObjAlignmentInBytes) / | |
184 HeapWordSize); | |
185 | |
186 // UseParNewGC can change the length field of an "old copy" of an object | |
187 // array in the young gen so it indicates the stealable portion of | |
188 // an already copied array. This will cause the first disjunct below | |
189 // to fail if the sizes are computed across such a concurrent change. | |
190 // UseParNewGC also runs with promotion labs (which look like int | |
191 // filler arrays) which are subject to changing their declared size | |
192 // when finally retiring a PLAB; this also can cause the first disjunct | |
193 // to fail for another worker thread that is concurrently walking the block | |
194 // offset table. Both these invariant failures are benign for their | |
195 // current uses; we relax the assertion checking to cover these two cases below: | |
196 // is_objArray() && is_forwarded() // covers first scenario above | |
197 // || is_typeArray() // covers second scenario above | |
198 // If and when UseParallelGC uses the same obj array oop stealing/chunking | |
199 // technique, or when G1 is integrated (and currently uses this array chunking | |
200 // technique) we will need to suitably modify the assertion. | |
201 assert((s == klass->oop_size(this)) || | |
202 (((UseParNewGC || UseParallelGC) && | |
203 Universe::heap()->is_gc_active()) && | |
204 (is_typeArray() || | |
205 (is_objArray() && is_forwarded()))), | |
206 "wrong array object size"); | |
207 } else { | |
208 // Must be zero, so bite the bullet and take the virtual call. | |
209 s = klass->oop_size(this); | |
210 } | |
211 } | |
212 | |
213 assert(s % MinObjAlignment == 0, "alignment check"); | |
214 assert(s > 0, "Bad size calculated"); | |
215 return s; | |
216 } | |
217 | |
218 | |
219 inline int oopDesc::size() { | |
220 return size_given_klass(blueprint()); | |
221 } | |
222 | |
223 inline bool oopDesc::is_parsable() { | |
224 return blueprint()->oop_is_parsable(this); | |
225 } | |
226 | |
227 | |
228 inline void update_barrier_set(oop *p, oop v) { | |
229 assert(oopDesc::bs() != NULL, "Uninitialized bs in oop!"); | |
230 oopDesc::bs()->write_ref_field(p, v); | |
231 } | |
232 | |
233 | |
234 inline void oop_store(oop* p, oop v) { | |
235 if (always_do_update_barrier) { | |
236 oop_store((volatile oop*)p, v); | |
237 } else { | |
238 *p = v; | |
239 update_barrier_set(p, v); | |
240 } | |
241 } | |
242 | |
243 inline void oop_store(volatile oop* p, oop v) { | |
244 // Used by release_obj_field_put, so use release_store_ptr. | |
245 OrderAccess::release_store_ptr(p, v); | |
246 update_barrier_set((oop *)p, v); | |
247 } | |
248 | |
249 inline void oop_store_without_check(oop* p, oop v) { | |
250 // XXX YSR FIX ME!!! | |
251 if (always_do_update_barrier) { | |
252 oop_store(p, v); | |
253 } else { | |
254 assert(!Universe::heap()->barrier_set()->write_ref_needs_barrier(p, v), | |
255 "oop store without store check failed"); | |
256 *p = v; | |
257 } | |
258 } | |
259 | |
260 // When it absolutely has to get there. | |
261 inline void oop_store_without_check(volatile oop* p, oop v) { | |
262 // XXX YSR FIX ME!!! | |
263 if (always_do_update_barrier) { | |
264 oop_store(p, v); | |
265 } else { | |
266 assert(!Universe::heap()->barrier_set()-> | |
267 write_ref_needs_barrier((oop *)p, v), | |
268 "oop store without store check failed"); | |
269 OrderAccess::release_store_ptr(p, v); | |
270 } | |
271 } | |
272 | |
273 | |
274 // Used only for markSweep, scavenging | |
275 inline bool oopDesc::is_gc_marked() const { | |
276 return mark()->is_marked(); | |
277 } | |
278 | |
279 inline bool oopDesc::is_locked() const { | |
280 return mark()->is_locked(); | |
281 } | |
282 | |
283 inline bool oopDesc::is_unlocked() const { | |
284 return mark()->is_unlocked(); | |
285 } | |
286 | |
287 inline bool oopDesc::has_bias_pattern() const { | |
288 return mark()->has_bias_pattern(); | |
289 } | |
290 | |
291 inline bool check_obj_alignment(oop obj) { | |
292 return (intptr_t)obj % MinObjAlignmentInBytes == 0; | |
293 } | |
294 | |
295 | |
296 // used only for asserts | |
297 inline bool oopDesc::is_oop(bool ignore_mark_word) const { | |
298 oop obj = (oop) this; | |
299 if (!check_obj_alignment(obj)) return false; | |
300 if (!Universe::heap()->is_in_reserved(obj)) return false; | |
301 // obj is aligned and accessible in heap | |
302 // try to find metaclass cycle safely without seg faulting on bad input | |
303 // we should reach klassKlassObj by following klass link at most 3 times | |
304 for (int i = 0; i < 3; i++) { | |
305 obj = obj->klass(); | |
306 // klass should be aligned and in permspace | |
307 if (!check_obj_alignment(obj)) return false; | |
308 if (!Universe::heap()->is_in_permanent(obj)) return false; | |
309 } | |
310 if (obj != Universe::klassKlassObj()) { | |
311 // During a dump, the _klassKlassObj moved to a shared space. | |
312 if (DumpSharedSpaces && Universe::klassKlassObj()->is_shared()) { | |
313 return true; | |
314 } | |
315 return false; | |
316 } | |
317 | |
318 // Header verification: the mark is typically non-NULL. If we're | |
319 // at a safepoint, it must not be null. | |
320 // Outside of a safepoint, the header could be changing (for example, | |
321 // another thread could be inflating a lock on this object). | |
322 if (ignore_mark_word) { | |
323 return true; | |
324 } | |
325 if (mark() != NULL) { | |
326 return true; | |
327 } | |
328 return !SafepointSynchronize::is_at_safepoint(); | |
329 } | |
330 | |
331 | |
332 // used only for asserts | |
333 inline bool oopDesc::is_oop_or_null(bool ignore_mark_word) const { | |
334 return this == NULL ? true : is_oop(ignore_mark_word); | |
335 } | |
336 | |
337 #ifndef PRODUCT | |
338 // used only for asserts | |
339 inline bool oopDesc::is_unlocked_oop() const { | |
340 if (!Universe::heap()->is_in_reserved(this)) return false; | |
341 return mark()->is_unlocked(); | |
342 } | |
343 | |
344 | |
345 #endif // PRODUCT | |
346 | |
347 inline void oopDesc::follow_header() { | |
348 MarkSweep::mark_and_push((oop*)&_klass); | |
349 } | |
350 | |
351 inline void oopDesc::follow_contents() { | |
352 assert (is_gc_marked(), "should be marked"); | |
353 blueprint()->oop_follow_contents(this); | |
354 } | |
355 | |
356 | |
357 // Used by scavengers | |
358 | |
359 inline bool oopDesc::is_forwarded() const { | |
360 // The extra heap check is needed since the obj might be locked, in which case the | |
361 // mark would point to a stack location and have the sentinel bit cleared | |
362 return mark()->is_marked(); | |
363 } | |
364 | |
365 | |
366 // Used by scavengers | |
367 inline void oopDesc::forward_to(oop p) { | |
368 assert(Universe::heap()->is_in_reserved(p), | |
369 "forwarding to something not in heap"); | |
370 markOop m = markOopDesc::encode_pointer_as_mark(p); | |
371 assert(m->decode_pointer() == p, "encoding must be reversable"); | |
372 set_mark(m); | |
373 } | |
374 | |
375 // Used by parallel scavengers | |
376 inline bool oopDesc::cas_forward_to(oop p, markOop compare) { | |
377 assert(Universe::heap()->is_in_reserved(p), | |
378 "forwarding to something not in heap"); | |
379 markOop m = markOopDesc::encode_pointer_as_mark(p); | |
380 assert(m->decode_pointer() == p, "encoding must be reversable"); | |
381 return cas_set_mark(m, compare) == compare; | |
382 } | |
383 | |
384 // Note that the forwardee is not the same thing as the displaced_mark. | |
385 // The forwardee is used when copying during scavenge and mark-sweep. | |
386 // It does need to clear the low two locking- and GC-related bits. | |
387 inline oop oopDesc::forwardee() const { return (oop) mark()->decode_pointer(); } | |
388 | |
389 | |
390 inline bool oopDesc::has_displaced_mark() const { | |
391 return mark()->has_displaced_mark_helper(); | |
392 } | |
393 | |
394 inline markOop oopDesc::displaced_mark() const { | |
395 return mark()->displaced_mark_helper(); | |
396 } | |
397 | |
398 inline void oopDesc::set_displaced_mark(markOop m) { | |
399 mark()->set_displaced_mark_helper(m); | |
400 } | |
401 | |
402 // The following method needs to be MT safe. | |
403 inline int oopDesc::age() const { | |
404 assert(!is_forwarded(), "Attempt to read age from forwarded mark"); | |
405 if (has_displaced_mark()) { | |
406 return displaced_mark()->age(); | |
407 } else { | |
408 return mark()->age(); | |
409 } | |
410 } | |
411 | |
412 inline void oopDesc::incr_age() { | |
413 assert(!is_forwarded(), "Attempt to increment age of forwarded mark"); | |
414 if (has_displaced_mark()) { | |
415 set_displaced_mark(displaced_mark()->incr_age()); | |
416 } else { | |
417 set_mark(mark()->incr_age()); | |
418 } | |
419 } | |
420 | |
421 | |
422 inline intptr_t oopDesc::identity_hash() { | |
423 // Fast case; if the object is unlocked and the hash value is set, no locking is needed | |
424 // Note: The mark must be read into local variable to avoid concurrent updates. | |
425 markOop mrk = mark(); | |
426 if (mrk->is_unlocked() && !mrk->has_no_hash()) { | |
427 return mrk->hash(); | |
428 } else if (mrk->is_marked()) { | |
429 return mrk->hash(); | |
430 } else { | |
431 return slow_identity_hash(); | |
432 } | |
433 } | |
434 | |
435 | |
436 inline void oopDesc::oop_iterate_header(OopClosure* blk) { | |
437 blk->do_oop((oop*)&_klass); | |
438 } | |
439 | |
440 | |
441 inline void oopDesc::oop_iterate_header(OopClosure* blk, MemRegion mr) { | |
442 if (mr.contains(&_klass)) blk->do_oop((oop*)&_klass); | |
443 } | |
444 | |
445 | |
446 inline int oopDesc::adjust_pointers() { | |
447 debug_only(int check_size = size()); | |
448 int s = blueprint()->oop_adjust_pointers(this); | |
449 assert(s == check_size, "should be the same"); | |
450 return s; | |
451 } | |
452 | |
453 inline void oopDesc::adjust_header() { | |
454 MarkSweep::adjust_pointer((oop*)&_klass); | |
455 } | |
456 | |
457 #define OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ | |
458 \ | |
459 inline int oopDesc::oop_iterate(OopClosureType* blk) { \ | |
460 SpecializationStats::record_call(); \ | |
461 return blueprint()->oop_oop_iterate##nv_suffix(this, blk); \ | |
462 } \ | |
463 \ | |
464 inline int oopDesc::oop_iterate(OopClosureType* blk, MemRegion mr) { \ | |
465 SpecializationStats::record_call(); \ | |
466 return blueprint()->oop_oop_iterate##nv_suffix##_m(this, blk, mr); \ | |
467 } | |
468 | |
469 ALL_OOP_OOP_ITERATE_CLOSURES_1(OOP_ITERATE_DEFN) | |
470 ALL_OOP_OOP_ITERATE_CLOSURES_3(OOP_ITERATE_DEFN) | |
471 | |
472 | |
473 inline bool oopDesc::is_shared() const { | |
474 return CompactingPermGenGen::is_shared(this); | |
475 } | |
476 | |
477 inline bool oopDesc::is_shared_readonly() const { | |
478 return CompactingPermGenGen::is_shared_readonly(this); | |
479 } | |
480 | |
481 inline bool oopDesc::is_shared_readwrite() const { | |
482 return CompactingPermGenGen::is_shared_readwrite(this); | |
483 } |