view src/share/vm/oops/klassPS.hpp @ 3602:da91efe96a93

6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents f95d63e2154a
children db9981fd3124
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/*
 * Copyright (c) 2007, 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.
 *
 */

#ifndef SHARE_VM_OOPS_KLASSPS_HPP
#define SHARE_VM_OOPS_KLASSPS_HPP

  // Expands to Parallel Scavenge and Parallel Old declarations

#ifndef SERIALGC
#define PARALLEL_GC_DECLS \
  virtual void oop_push_contents(PSPromotionManager* pm, oop obj);          \
  /* Parallel Old GC support                                                \
                                                                            \
   The 2-arg version of oop_update_pointers is for objects that are         \
   known not to cross chunk boundaries.  The 4-arg version is for           \
   objects that do (or may) cross chunk boundaries; it updates only those   \
   oops that are in the region [beg_addr, end_addr).  */                    \
  virtual void oop_follow_contents(ParCompactionManager* cm, oop obj);      \
  virtual int  oop_update_pointers(ParCompactionManager* cm, oop obj);

// Pure virtual version for klass.hpp
#define PARALLEL_GC_DECLS_PV \
  virtual void oop_push_contents(PSPromotionManager* pm, oop obj) = 0;      \
  virtual void oop_follow_contents(ParCompactionManager* cm, oop obj) = 0;  \
  virtual int  oop_update_pointers(ParCompactionManager* cm, oop obj) = 0;
#else  // SERIALGC
#define PARALLEL_GC_DECLS
#define PARALLEL_GC_DECLS_PV
#endif // SERIALGC

#endif // SHARE_VM_OOPS_KLASSPS_HPP