src/hotspot/share/gc/z/zResurrection.inline.hpp
author eosterlund
Tue, 12 Nov 2019 20:01:23 +0000
changeset 59038 b9a42ca342db
parent 50525 767cdb97f103
child 59253 1647ed87bf1e
permissions -rw-r--r--
8233061: ZGC: Enforce memory ordering in segmented bit maps Reviewed-by: pliden, stefank

/*
 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_GC_Z_ZRESURRECTION_INLINE_HPP
#define SHARE_GC_Z_ZRESURRECTION_INLINE_HPP

#include "gc/z/zResurrection.hpp"
#include "runtime/orderAccess.hpp"

inline bool ZResurrection::is_blocked() {
  // We use a loadload barrier to make sure we are not
  // seeing oops from a time when resurrection was blocked.
  const bool blocked = _blocked;
  OrderAccess::loadload();
  return blocked;
}

#endif // SHARE_GC_Z_ZRESURRECTION_INLINE_HPP