Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.hpp @ 939:9eebd3ac74cf
6845368: large objects cause a crash or unexpected exception
Reviewed-by: jmasa, iveresov
| author | jcoomes |
|---|---|
| date | Thu, 13 Aug 2009 16:22:45 -0700 |
| parents | b37c246bf7ce |
| children | 89e0543e1737 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright 1997-2006 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 // An instanceKlassKlass is the klass of an instanceKlass | |
| 26 | |
| 27 class instanceKlassKlass : public klassKlass { | |
| 28 public: | |
| 29 // Dispatched operation | |
| 30 bool oop_is_klass() const { return true; } | |
| 31 bool oop_is_instanceKlass() const { return true; } | |
| 32 | |
| 33 int oop_size(oop obj) const; | |
| 34 int klass_oop_size() const { return object_size(); } | |
| 35 | |
| 36 // Allocation | |
| 37 DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass); | |
| 38 static klassOop create_klass(TRAPS); | |
| 39 klassOop allocate_instance_klass(int vtable_len, | |
| 40 int itable_len, | |
| 41 int static_field_size, | |
|
939
9eebd3ac74cf
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
938
diff
changeset
|
42 unsigned int nonstatic_oop_map_count, |
| 0 | 43 ReferenceType rt, |
| 44 TRAPS); | |
| 45 | |
| 46 // Casting from klassOop | |
| 47 static instanceKlassKlass* cast(klassOop k) { | |
| 48 assert(k->klass_part()->oop_is_klass(), "cast to instanceKlassKlass"); | |
| 49 return (instanceKlassKlass*) k->klass_part(); | |
| 50 } | |
| 51 | |
| 52 // Sizing | |
| 53 static int header_size() { return oopDesc::header_size() + sizeof(instanceKlassKlass)/HeapWordSize; } | |
| 54 int object_size() const { return align_object_size(header_size()); } | |
| 55 | |
| 56 // Garbage collection | |
| 57 void oop_follow_contents(oop obj); | |
| 58 int oop_adjust_pointers(oop obj); | |
| 59 bool oop_is_parsable(oop obj) const; | |
| 60 | |
| 61 // Parallel Scavenge and Parallel Old | |
| 62 PARALLEL_GC_DECLS | |
| 63 | |
| 64 // Iterators | |
| 65 int oop_oop_iterate(oop obj, OopClosure* blk); | |
| 66 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); | |
| 67 | |
| 68 private: | |
| 69 // Apply closure to the InstanceKlass oops that are outside the java heap. | |
| 70 inline void iterate_c_heap_oops(instanceKlass* ik, OopClosure* closure); | |
| 71 | |
| 72 #ifndef PRODUCT | |
| 73 public: | |
| 74 // Printing | |
| 75 void oop_print_on(oop obj, outputStream* st); | |
| 76 void oop_print_value_on(oop obj, outputStream* st); | |
| 77 #endif | |
| 78 | |
| 79 public: | |
| 80 // Verification | |
| 81 const char* internal_name() const; | |
| 82 void oop_verify_on(oop obj, outputStream* st); | |
| 83 // tells whether obj is partially constructed (gc during class loading) | |
| 84 bool oop_partially_loaded(oop obj) const; | |
| 85 void oop_set_partially_loaded(oop obj); | |
| 86 }; |