g1MarkSweep.hpp revision 4141
829N/A/*
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829N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
829N/A *
829N/A * This code is free software; you can redistribute it and/or modify it
829N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation.
829N/A *
2362N/A * This code is distributed in the hope that it will be useful, but WITHOUT
829N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
829N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
829N/A * version 2 for more details (a copy is included in the LICENSE file that
829N/A * accompanied this code).
829N/A *
829N/A * You should have received a copy of the GNU General Public License version
829N/A * 2 along with this work; if not, write to the Free Software Foundation,
829N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
829N/A *
829N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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2362N/A *
2362N/A */
829N/A
829N/A#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP
829N/A#define SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP
829N/A
829N/A#include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
829N/A#include "gc_implementation/g1/heapRegion.hpp"
829N/A#include "memory/genMarkSweep.hpp"
829N/A#include "memory/generation.hpp"
829N/A#include "memory/universe.hpp"
829N/A#include "oops/markOop.hpp"
829N/A#include "oops/oop.hpp"
829N/A#include "runtime/timer.hpp"
829N/A#include "utilities/growableArray.hpp"
829N/A
829N/Aclass ReferenceProcessor;
829N/A
829N/A// G1MarkSweep takes care of global mark-compact garbage collection for a
829N/A// G1CollectedHeap using a four-phase pointer forwarding algorithm. All
829N/A// generations are assumed to support marking; those that can also support
829N/A// compaction.
829N/A//
829N/A// Class unloading will only occur when a full gc is invoked.
829N/A
829N/A
829N/Aclass G1MarkSweep : AllStatic {
829N/A friend class VM_G1MarkSweep;
829N/A friend class Scavenge;
829N/A
829N/A public:
829N/A
829N/A static void invoke_at_safepoint(ReferenceProcessor* rp,
829N/A bool clear_all_softrefs);
829N/A
829N/A static STWGCTimer* gc_timer() { return GenMarkSweep::_gc_timer; }
2713N/A static SerialOldTracer* gc_tracer() { return GenMarkSweep::_gc_tracer; }
829N/A
829N/A private:
829N/A
829N/A // Mark live objects
829N/A static void mark_sweep_phase1(bool& marked_for_deopt,
829N/A bool clear_all_softrefs);
829N/A // Calculate new addresses
829N/A static void mark_sweep_phase2();
829N/A // Update pointers
829N/A static void mark_sweep_phase3();
// Move objects to new positions
static void mark_sweep_phase4();
static void allocate_stacks();
};
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP