view src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp @ 20295:3f2894c5052e

8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents 2c6ef90f030a
children 7848fc12602b
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/*
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 * 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.
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#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
#define SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP

// The following OopClosure types get specialized versions of
// "oop_oop_iterate" that invoke the closures' do_oop methods
// non-virtually, using a mechanism defined in this file.  Extend these
// macros in the obvious way to add specializations for new closures.

enum G1Barrier {
  G1BarrierNone,
  G1BarrierEvac,
  G1BarrierKlass
};

enum G1Mark {
  G1MarkNone,
  G1MarkFromRoot,
  G1MarkPromotedFromRoot
};

// Forward declarations.

template<G1Barrier barrier, G1Mark do_mark_object>
class G1ParCopyClosure;

class G1ParScanClosure;
class G1ParPushHeapRSClosure;

class FilterIntoCSClosure;
class FilterOutOfRegionClosure;
class G1CMOopClosure;
class G1RootRegionScanClosure;

// Specialized oop closures from g1RemSet.cpp
class G1Mux2Closure;
class G1TriggerClosure;
class G1InvokeIfNotTriggeredClosure;
class G1UpdateRSOrPushRefOopClosure;

#ifdef FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES
#error "FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES already defined."
#endif

#define FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES(f) \
      f(G1ParScanClosure,_nv)                           \
      f(G1ParPushHeapRSClosure,_nv)                     \
      f(FilterIntoCSClosure,_nv)                        \
      f(FilterOutOfRegionClosure,_nv)                   \
      f(G1CMOopClosure,_nv)                             \
      f(G1RootRegionScanClosure,_nv)                    \
      f(G1Mux2Closure,_nv)                              \
      f(G1TriggerClosure,_nv)                           \
      f(G1InvokeIfNotTriggeredClosure,_nv)              \
      f(G1UpdateRSOrPushRefOopClosure,_nv)

#ifdef FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES
#error "FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES already defined."
#endif

#define FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES(f)

#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP