86 lines
3.5 KiB
C++
86 lines
3.5 KiB
C++
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/*
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* Copyright 2001-2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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class PSAdaptiveSizePolicy;
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class PSYoungGen;
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class PSOldGen;
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class PSMarkSweep : public MarkSweep {
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private:
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static elapsedTimer _accumulated_time;
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static unsigned int _total_invocations;
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static jlong _time_of_last_gc; // ms
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static CollectorCounters* _counters;
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// Closure accessors
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static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; }
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static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; }
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static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; }
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static OopClosure* adjust_root_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_root_pointer_closure; }
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static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; }
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debug_only(public:) // Used for PSParallelCompact debugging
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// Mark live objects
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static void mark_sweep_phase1(bool clear_all_softrefs);
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// Calculate new addresses
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static void mark_sweep_phase2();
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debug_only(private:) // End used for PSParallelCompact debugging
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// Update pointers
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static void mark_sweep_phase3();
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// Move objects to new positions
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static void mark_sweep_phase4();
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debug_only(public:) // Used for PSParallelCompact debugging
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// Temporary data structures for traversal and storing/restoring marks
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static void allocate_stacks();
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static void deallocate_stacks();
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static void set_ref_processor(ReferenceProcessor* rp) { // delete this method
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_ref_processor = rp;
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}
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debug_only(private:) // End used for PSParallelCompact debugging
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// If objects are left in eden after a collection, try to move the boundary
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// and absorb them into the old gen. Returns true if eden was emptied.
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static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy,
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PSYoungGen* young_gen,
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PSOldGen* old_gen);
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// Reset time since last full gc
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static void reset_millis_since_last_gc();
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public:
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static void invoke(bool clear_all_softrefs);
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static void invoke_no_policy(bool clear_all_softrefs);
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static void initialize();
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// Public accessors
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static elapsedTimer* accumulated_time() { return &_accumulated_time; }
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static unsigned int total_invocations() { return _total_invocations; }
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static CollectorCounters* counters() { return _counters; }
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// Time since last full gc (in milliseconds)
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static jlong millis_since_last_gc();
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};
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