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src/share/vm/oops/objArrayKlass.hpp@ddd894528dbc (annotated)

src/share/vm/oops/objArrayKlass.hpp

Thu, 23 Jun 2011 17:14:06 -0700

author
jrose
date
Thu, 23 Jun 2011 17:14:06 -0700
changeset 2982
ddd894528dbc
parent 2314
f95d63e2154a
child 3391
069ab3f976d3
permissions
-rw-r--r--

7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
Reviewed-by: never

duke@435 1 /*
stefank@2314 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_OOPS_OBJARRAYKLASS_HPP
stefank@2314 26 #define SHARE_VM_OOPS_OBJARRAYKLASS_HPP
stefank@2314 27
stefank@2314 28 #include "memory/specialized_oop_closures.hpp"
stefank@2314 29 #include "oops/arrayKlass.hpp"
stefank@2314 30 #include "oops/instanceKlass.hpp"
stefank@2314 31
duke@435 32 // objArrayKlass is the klass for objArrays
duke@435 33
duke@435 34 class objArrayKlass : public arrayKlass {
duke@435 35 friend class VMStructs;
duke@435 36 private:
duke@435 37 klassOop _element_klass; // The klass of the elements of this array type
duke@435 38 klassOop _bottom_klass; // The one-dimensional type (instanceKlass or typeArrayKlass)
duke@435 39 public:
duke@435 40 // Instance variables
duke@435 41 klassOop element_klass() const { return _element_klass; }
duke@435 42 void set_element_klass(klassOop k) { oop_store_without_check((oop*) &_element_klass, (oop) k); }
duke@435 43 oop* element_klass_addr() { return (oop*)&_element_klass; }
duke@435 44
duke@435 45 klassOop bottom_klass() const { return _bottom_klass; }
duke@435 46 void set_bottom_klass(klassOop k) { oop_store_without_check((oop*) &_bottom_klass, (oop) k); }
duke@435 47 oop* bottom_klass_addr() { return (oop*)&_bottom_klass; }
duke@435 48
duke@435 49 // Compiler/Interpreter offset
duke@435 50 static int element_klass_offset_in_bytes() { return offset_of(objArrayKlass, _element_klass); }
duke@435 51
duke@435 52 // Dispatched operation
duke@435 53 bool can_be_primary_super_slow() const;
duke@435 54 objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS);
duke@435 55 bool compute_is_subtype_of(klassOop k);
duke@435 56 bool oop_is_objArray_slow() const { return true; }
duke@435 57 int oop_size(oop obj) const;
duke@435 58 int klass_oop_size() const { return object_size(); }
duke@435 59
duke@435 60 // Allocation
duke@435 61 DEFINE_ALLOCATE_PERMANENT(objArrayKlass);
duke@435 62 objArrayOop allocate(int length, TRAPS);
duke@435 63 oop multi_allocate(int rank, jint* sizes, TRAPS);
duke@435 64
duke@435 65 // Copying
duke@435 66 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
duke@435 67
duke@435 68 // Compute protection domain
duke@435 69 oop protection_domain() { return Klass::cast(bottom_klass())->protection_domain(); }
duke@435 70 // Compute class loader
duke@435 71 oop class_loader() const { return Klass::cast(bottom_klass())->class_loader(); }
duke@435 72
coleenp@548 73 private:
coleenp@548 74 // Either oop or narrowOop depending on UseCompressedOops.
coleenp@548 75 // must be called from within objArrayKlass.cpp
coleenp@548 76 template <class T> void do_copy(arrayOop s, T* src, arrayOop d,
coleenp@548 77 T* dst, int length, TRAPS);
duke@435 78 protected:
duke@435 79 // Returns the objArrayKlass for n'th dimension.
duke@435 80 virtual klassOop array_klass_impl(bool or_null, int n, TRAPS);
duke@435 81
duke@435 82 // Returns the array class with this class as element type.
duke@435 83 virtual klassOop array_klass_impl(bool or_null, TRAPS);
duke@435 84
duke@435 85 public:
duke@435 86 // Casting from klassOop
duke@435 87 static objArrayKlass* cast(klassOop k) {
duke@435 88 assert(k->klass_part()->oop_is_objArray_slow(), "cast to objArrayKlass");
duke@435 89 return (objArrayKlass*) k->klass_part();
duke@435 90 }
duke@435 91
duke@435 92 // Sizing
duke@435 93 static int header_size() { return oopDesc::header_size() + sizeof(objArrayKlass)/HeapWordSize; }
duke@435 94 int object_size() const { return arrayKlass::object_size(header_size()); }
duke@435 95
duke@435 96 // Initialization (virtual from Klass)
duke@435 97 void initialize(TRAPS);
duke@435 98
duke@435 99 // Garbage collection
duke@435 100 void oop_follow_contents(oop obj);
jcoomes@1746 101 inline void oop_follow_contents(oop obj, int index);
jcoomes@1746 102 template <class T> inline void objarray_follow_contents(oop obj, int index);
jcoomes@1746 103
duke@435 104 int oop_adjust_pointers(oop obj);
duke@435 105
duke@435 106 // Parallel Scavenge and Parallel Old
duke@435 107 PARALLEL_GC_DECLS
jcoomes@1746 108 #ifndef SERIALGC
jcoomes@1746 109 inline void oop_follow_contents(ParCompactionManager* cm, oop obj, int index);
jcoomes@1746 110 template <class T> inline void
jcoomes@1746 111 objarray_follow_contents(ParCompactionManager* cm, oop obj, int index);
jcoomes@1746 112 #endif // !SERIALGC
duke@435 113
duke@435 114 // Iterators
duke@435 115 int oop_oop_iterate(oop obj, OopClosure* blk) {
duke@435 116 return oop_oop_iterate_v(obj, blk);
duke@435 117 }
duke@435 118 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
duke@435 119 return oop_oop_iterate_v_m(obj, blk, mr);
duke@435 120 }
duke@435 121 #define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
duke@435 122 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \
duke@435 123 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \
coleenp@548 124 MemRegion mr); \
coleenp@548 125 int oop_oop_iterate_range##nv_suffix(oop obj, OopClosureType* blk, \
coleenp@548 126 int start, int end);
duke@435 127
duke@435 128 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
ysr@777 129 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
duke@435 130
duke@435 131 // JVM support
duke@435 132 jint compute_modifier_flags(TRAPS) const;
duke@435 133
duke@435 134 private:
duke@435 135 static klassOop array_klass_impl (objArrayKlassHandle this_oop, bool or_null, int n, TRAPS);
duke@435 136
duke@435 137 public:
duke@435 138 // Printing
jrose@1590 139 void oop_print_value_on(oop obj, outputStream* st);
jrose@1590 140 #ifndef PRODUCT
duke@435 141 void oop_print_on (oop obj, outputStream* st);
jrose@1590 142 #endif //PRODUCT
duke@435 143
duke@435 144 // Verification
duke@435 145 const char* internal_name() const;
duke@435 146 void oop_verify_on(oop obj, outputStream* st);
duke@435 147 void oop_verify_old_oop(oop obj, oop* p, bool allow_dirty);
coleenp@548 148 void oop_verify_old_oop(oop obj, narrowOop* p, bool allow_dirty);
duke@435 149 };
stefank@2314 150
stefank@2314 151 #endif // SHARE_VM_OOPS_OBJARRAYKLASS_HPP

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