/*
 * Copyright (c) 1997, 2025, 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
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 */

#include "classfile/classLoaderDataGraph.hpp"
#include "code/nmethod.hpp"
#include "gc/shared/barrierSetNMethod.hpp"
#include "memory/iterator.inline.hpp"
#include "oops/oop.inline.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"

DoNothingClosure do_nothing_cl;

void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
  cld->oops_do(_oop_closure, _cld_claim);
}

void ObjectToOopClosure::do_object(oop obj) {
  obj->oop_iterate(_cl);
}

void NMethodToOopClosure::do_nmethod(nmethod* nm) {
  nm->oops_do(_cl);
  if (_fix_relocations) {
    nm->fix_oop_relocations();
  }
}

void MarkingNMethodClosure::do_nmethod(nmethod* nm) {
  assert(nm != nullptr, "Unexpected nullptr");
  if (nm->oops_do_try_claim()) {
    // Process the oops in the nmethod
    nm->oops_do(_cl);

    if (_keepalive_nmethods) {
      // CodeCache unloading support
      nm->mark_as_maybe_on_stack();

      BarrierSetNMethod* bs_nm = BarrierSet::barrier_set()->barrier_set_nmethod();
      bs_nm->disarm(nm);
    }

    if (_fix_relocations) {
      nm->fix_oop_relocations();
    }
  }
}