vframeKlass.cpp

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/* Copyright 1994, 1995 LongView Technologies L.L.C. $Revision: 1.8 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
All rights reserved.

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    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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          disclaimer in the documentation and/or other materials provided with the distribution.
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          from this software without specific prior written permission.

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*/


# include "incls/_precompiled.incl"
# include "incls/_vframeKlass.cpp.incl"

void set_vframeKlass_vtbl(Klass* k) {
  vframeKlass o;
  k->set_vtbl_value(o.vtbl_value());
}

oop vframeKlass::allocateObject() {
  klassOop k    = as_klassOop();
  int      size = non_indexable_size();
  // allocate
  vframeOop obj = as_vframeOop(Universe::allocate(size, (memOop*)&k));
  // header
  memOop(obj)->initialize_header(true, k);
 
  obj->set_process(processOop(nilObj));
  obj->set_index(0);
  obj->set_time_stamp(1);

  // instance variables
  memOop(obj)->initialize_body(vframeOopDesc::header_size(), size);
  return obj;
}

klassOop vframeKlass::create_subclass(mixinOop mixin, Format format) {
  if (format == mem_klass || format == vframe_klass) {
    return vframeKlass::create_class(as_klassOop(), mixin);
  }
  return NULL;
}

klassOop vframeKlass::create_class(klassOop super_class, mixinOop mixin) {
  vframeKlass o;
  return create_generic_class(super_class, mixin, o.vtbl_value());
}

int vframeKlass::oop_scavenge_contents(oop obj) {
  int size = non_indexable_size();
  // header + instance variables
  memOop(obj)->scavenge_header();
  memOop(obj)->scavenge_body(memOopDesc::header_size(), size);
  return size;  
}

int vframeKlass::oop_scavenge_tenured_contents(oop obj) {
  int size = non_indexable_size();
  // header + instance variables
  memOop(obj)->scavenge_tenured_header();
  memOop(obj)->scavenge_tenured_body(memOopDesc::header_size(), size);
  return size;
}

void vframeKlass::oop_follow_contents(oop obj) {
  // header + instance variables
  memOop(obj)->follow_header();
  memOop(obj)->follow_body(memOopDesc::header_size(), non_indexable_size());
}

void vframeKlass::oop_layout_iterate(oop obj, ObjectLayoutClosure* blk) {
  // header
  memOop(obj)->layout_iterate_header(blk);
  vframeOop vf = vframeOop(obj);
  blk->do_oop("process",    (oop*) &vf->addr()->_process);
  blk->do_oop("index",      (oop*) &vf->addr()->_index);
  blk->do_oop("time stamp", (oop*) &vf->addr()->_time_stamp);
  memOop(obj)->layout_iterate_body(blk, vframeOopDesc::header_size(), non_indexable_size());
}

void vframeKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
  // header
  memOop(obj)->oop_iterate_header(blk);
  vframeOop vf = vframeOop(obj);
  blk->do_oop((oop*) &vf->addr()->_process);
  blk->do_oop((oop*) &vf->addr()->_index);
  blk->do_oop((oop*) &vf->addr()->_time_stamp);
  // instance variables
  memOop(obj)->oop_iterate_body(blk, vframeOopDesc::header_size(), non_indexable_size());
}

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