/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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#ifndef SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP
#define SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP
#include "memory/referenceType.hpp"
#include "oops/klassKlass.hpp"
// An instanceKlassKlass is the klass of an instanceKlass
class instanceKlassKlass : public klassKlass {
public:
// Dispatched operation
bool oop_is_klass() const { return true; }
bool oop_is_instanceKlass() const { return true; }
int oop_size(oop obj) const;
int klass_oop_size() const { return object_size(); }
// Allocation
DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass);
static klassOop create_klass(TRAPS);
klassOop allocate_instance_klass(Symbol* name,
int vtable_len,
int itable_len,
int static_field_size,
unsigned int nonstatic_oop_map_count,
AccessFlags access_flags,
ReferenceType rt,
KlassHandle host_klass,
TRAPS);
// Casting from klassOop
static instanceKlassKlass* cast(klassOop k) {
assert(k->klass_part()->oop_is_klass(), "cast to instanceKlassKlass");
return (instanceKlassKlass*) k->klass_part();
}
// Sizing
static int header_size() { return oopDesc::header_size() + sizeof(instanceKlassKlass)/HeapWordSize; }
int object_size() const { return align_object_size(header_size()); }
// Garbage collection
void oop_follow_contents(oop obj);
int oop_adjust_pointers(oop obj);
bool oop_is_parsable(oop obj) const;
// Parallel Scavenge and Parallel Old
PARALLEL_GC_DECLS
// Iterators
int oop_oop_iterate(oop obj, OopClosure* blk);
int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
private:
// Apply closure to the InstanceKlass oops that are outside the java heap.
inline void iterate_c_heap_oops(instanceKlass* ik, OopClosure* closure);
public:
// Printing
void oop_print_value_on(oop obj, outputStream* st);
#ifndef PRODUCT
void oop_print_on(oop obj, outputStream* st);
#endif
// Verification
const char* internal_name() const;
void oop_verify_on(oop obj, outputStream* st);
// tells whether obj is partially constructed (gc during class loading)
bool oop_partially_loaded(oop obj) const;
void oop_set_partially_loaded(oop obj);
};
#endif // SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP