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Datei: c1_globals_pd.hpp Sprache: C

/*
* Copyright (c) 1997, 2018, 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 "oops/access.inline.hpp"
#include "oops/objArrayKlass.hpp"
#include "oops/objArrayOop.inline.hpp"
#include "oops/oop.inline.hpp"

oop objArrayOopDesc::atomic_compare_exchange_oop(int index, oop exchange_value,
                                                 oop compare_value) {
  ptrdiff_t offs;
  if (UseCompressedOops) {
    offs = objArrayOopDesc::obj_at_offset<narrowOop>(index);
  } else {
    offs = objArrayOopDesc::obj_at_offset<oop>(index);
  }
  return HeapAccess<IS_ARRAY>::oop_atomic_cmpxchg_at(as_oop(), offs, compare_value, exchange_value);
}

Klass* objArrayOopDesc::element_klass() {
  return ObjArrayKlass::cast(klass())->element_klass();
}

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