/*

 * Copyright (c) 1997, 2011, 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "classfile/javaClasses.hpp"

#include "gc_implementation/shared/markSweep.inline.hpp"

#include "oops/arrayKlassKlass.hpp"

#include "oops/oop.inline.hpp"

#include "runtime/handles.inline.hpp"

klassOop arrayKlassKlass::create_klass(TRAPS) {

  arrayKlassKlass o;

  KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());

  KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);

  // Make sure size calculation is right

  assert(k()->size() == align_object_size(header_size()), "wrong size for object");

  java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror, make links

  return k();

}

bool arrayKlassKlass::oop_is_parsable(oop obj) const {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  return (!ak->null_vtbl()) && ak->object_is_parsable();

}

void arrayKlassKlass::oop_follow_contents(oop obj) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  MarkSweep::mark_and_push(ak->adr_component_mirror());

  MarkSweep::mark_and_push(ak->adr_lower_dimension());

  MarkSweep::mark_and_push(ak->adr_higher_dimension());

  {

    HandleMark hm;

    ak->vtable()->oop_follow_contents();

  }

  klassKlass::oop_follow_contents(obj);

}

#ifndef SERIALGC

void arrayKlassKlass::oop_follow_contents(ParCompactionManager* cm,

                                          oop obj) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  PSParallelCompact::mark_and_push(cm, ak->adr_component_mirror());

  PSParallelCompact::mark_and_push(cm, ak->adr_lower_dimension());

  PSParallelCompact::mark_and_push(cm, ak->adr_higher_dimension());

  {

    HandleMark hm;

    ak->vtable()->oop_follow_contents(cm);

  }

  klassKlass::oop_follow_contents(cm, obj);

}

#endif // SERIALGC

int arrayKlassKlass::oop_adjust_pointers(oop obj) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  MarkSweep::adjust_pointer(ak->adr_component_mirror());

  MarkSweep::adjust_pointer(ak->adr_lower_dimension());

  MarkSweep::adjust_pointer(ak->adr_higher_dimension());

  {

    HandleMark hm;

    ak->vtable()->oop_adjust_pointers();

  }

  return klassKlass::oop_adjust_pointers(obj);

}

int arrayKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  blk->do_oop(ak->adr_component_mirror());

  blk->do_oop(ak->adr_lower_dimension());

  blk->do_oop(ak->adr_higher_dimension());

  ak->vtable()->oop_oop_iterate(blk);

  return klassKlass::oop_oop_iterate(obj, blk);

}

int arrayKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  ak->vtable()->oop_oop_iterate_m(blk, mr);

  return klassKlass::oop_oop_iterate_m(obj, blk, mr);

}

#ifndef SERIALGC

void arrayKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {

  assert(obj->blueprint()->oop_is_arrayKlass(),"must be an array klass");

}

int arrayKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  PSParallelCompact::adjust_pointer(ak->adr_component_mirror());

  PSParallelCompact::adjust_pointer(ak->adr_lower_dimension());

  PSParallelCompact::adjust_pointer(ak->adr_higher_dimension());

  {

    HandleMark hm;

    ak->vtable()->oop_update_pointers(cm);

  }

  return klassKlass::oop_update_pointers(cm, obj);

}

#endif // SERIALGC

// Printing

void arrayKlassKlass::oop_print_on(oop obj, outputStream* st) {

  assert(obj->is_klass(), "must be klass");

  klassKlass::oop_print_on(obj, st);

}

void arrayKlassKlass::oop_print_value_on(oop obj, outputStream* st) {

  assert(obj->is_klass(), "must be klass");

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  for(int index = 0; index < ak->dimension(); index++) {

    st->print("[]");

  }

}

const char* arrayKlassKlass::internal_name() const {

  return "{array class}";

}

void arrayKlassKlass::oop_verify_on(oop obj, outputStream* st) {

  klassKlass::oop_verify_on(obj, st);

  arrayKlass* ak = arrayKlass::cast(klassOop(obj));

  if (!obj->partially_loaded()) {

    if (ak->component_mirror() != NULL)

      guarantee(ak->component_mirror()->klass(), "should have a class");

    if (ak->lower_dimension() != NULL)

      guarantee(ak->lower_dimension()->klass(), "should have a class");

    if (ak->higher_dimension() != NULL)

      guarantee(ak->higher_dimension()->klass(), "should have a class");

  }

}