Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,85 @@
     1.4 +/*
     1.5 + * Copyright 2001-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +class PSAdaptiveSizePolicy;
    1.29 +class PSYoungGen;
    1.30 +class PSOldGen;
    1.31 +
    1.32 +class PSMarkSweep : public MarkSweep {
    1.33 + private:
    1.34 +  static elapsedTimer        _accumulated_time;
    1.35 +  static unsigned int        _total_invocations;
    1.36 +  static jlong               _time_of_last_gc;   // ms
    1.37 +  static CollectorCounters*  _counters;
    1.38 +
    1.39 +  // Closure accessors
    1.40 +  static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; }
    1.41 +  static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; }
    1.42 +  static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; }
    1.43 +  static OopClosure* adjust_root_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_root_pointer_closure; }
    1.44 +  static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; }
    1.45 +
    1.46 + debug_only(public:)  // Used for PSParallelCompact debugging
    1.47 +  // Mark live objects
    1.48 +  static void mark_sweep_phase1(bool clear_all_softrefs);
    1.49 +  // Calculate new addresses
    1.50 +  static void mark_sweep_phase2();
    1.51 + debug_only(private:) // End used for PSParallelCompact debugging
    1.52 +  // Update pointers
    1.53 +  static void mark_sweep_phase3();
    1.54 +  // Move objects to new positions
    1.55 +  static void mark_sweep_phase4();
    1.56 +
    1.57 + debug_only(public:)  // Used for PSParallelCompact debugging
    1.58 +  // Temporary data structures for traversal and storing/restoring marks
    1.59 +  static void allocate_stacks();
    1.60 +  static void deallocate_stacks();
    1.61 +  static void set_ref_processor(ReferenceProcessor* rp) {  // delete this method
    1.62 +    _ref_processor = rp;
    1.63 +  }
    1.64 + debug_only(private:) // End used for PSParallelCompact debugging
    1.65 +
    1.66 +  // If objects are left in eden after a collection, try to move the boundary
    1.67 +  // and absorb them into the old gen.  Returns true if eden was emptied.
    1.68 +  static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy,
    1.69 +                                         PSYoungGen* young_gen,
    1.70 +                                         PSOldGen* old_gen);
    1.71 +
    1.72 +  // Reset time since last full gc
    1.73 +  static void reset_millis_since_last_gc();
    1.74 +
    1.75 + public:
    1.76 +  static void invoke(bool clear_all_softrefs);
    1.77 +  static void invoke_no_policy(bool clear_all_softrefs);
    1.78 +
    1.79 +  static void initialize();
    1.80 +
    1.81 +  // Public accessors
    1.82 +  static elapsedTimer* accumulated_time() { return &_accumulated_time; }
    1.83 +  static unsigned int total_invocations() { return _total_invocations; }
    1.84 +  static CollectorCounters* counters()    { return _counters; }
    1.85 +
    1.86 +  // Time since last full gc (in milliseconds)
    1.87 +  static jlong millis_since_last_gc();
    1.88 +};