1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/g1/g1MarkSweep.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,75 @@
1.4 +/*
1.5 + * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP
1.30 +
1.31 +#include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
1.32 +#include "gc_implementation/g1/heapRegion.hpp"
1.33 +#include "memory/genMarkSweep.hpp"
1.34 +#include "memory/generation.hpp"
1.35 +#include "memory/universe.hpp"
1.36 +#include "oops/markOop.hpp"
1.37 +#include "oops/oop.hpp"
1.38 +#include "runtime/timer.hpp"
1.39 +#include "utilities/growableArray.hpp"
1.40 +
1.41 +class ReferenceProcessor;
1.42 +
1.43 +// G1MarkSweep takes care of global mark-compact garbage collection for a
1.44 +// G1CollectedHeap using a four-phase pointer forwarding algorithm. All
1.45 +// generations are assumed to support marking; those that can also support
1.46 +// compaction.
1.47 +//
1.48 +// Class unloading will only occur when a full gc is invoked.
1.49 +
1.50 +
1.51 +class G1MarkSweep : AllStatic {
1.52 + friend class VM_G1MarkSweep;
1.53 + friend class Scavenge;
1.54 +
1.55 + public:
1.56 +
1.57 + static void invoke_at_safepoint(ReferenceProcessor* rp,
1.58 + bool clear_all_softrefs);
1.59 +
1.60 + static STWGCTimer* gc_timer() { return GenMarkSweep::_gc_timer; }
1.61 + static SerialOldTracer* gc_tracer() { return GenMarkSweep::_gc_tracer; }
1.62 +
1.63 + private:
1.64 +
1.65 + // Mark live objects
1.66 + static void mark_sweep_phase1(bool& marked_for_deopt,
1.67 + bool clear_all_softrefs);
1.68 + // Calculate new addresses
1.69 + static void mark_sweep_phase2();
1.70 + // Update pointers
1.71 + static void mark_sweep_phase3();
1.72 + // Move objects to new positions
1.73 + static void mark_sweep_phase4();
1.74 +
1.75 + static void allocate_stacks();
1.76 +};
1.77 +
1.78 +#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP
