Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.hpp @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 4ca6dc0799b6 |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17524 | 2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP | |
| 27 | |
| 28 #include "gc_implementation/shared/collectorCounters.hpp" | |
| 29 #include "gc_implementation/shared/markSweep.inline.hpp" | |
| 30 #include "utilities/stack.hpp" | |
| 31 | |
| 0 | 32 class PSAdaptiveSizePolicy; |
| 33 class PSYoungGen; | |
| 34 class PSOldGen; | |
| 35 | |
| 36 class PSMarkSweep : public MarkSweep { | |
| 37 private: | |
| 38 static elapsedTimer _accumulated_time; | |
| 39 static jlong _time_of_last_gc; // ms | |
| 40 static CollectorCounters* _counters; | |
| 41 | |
| 42 // Closure accessors | |
| 43 static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; } | |
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44 static KlassClosure* follow_klass_closure() { return &MarkSweep::follow_klass_closure; } |
| 0 | 45 static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; } |
| 46 static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; } | |
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47 static KlassClosure* adjust_klass_closure() { return &MarkSweep::adjust_klass_closure; } |
| 0 | 48 static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; } |
| 49 | |
| 50 debug_only(public:) // Used for PSParallelCompact debugging | |
| 51 // Mark live objects | |
| 52 static void mark_sweep_phase1(bool clear_all_softrefs); | |
| 53 // Calculate new addresses | |
| 54 static void mark_sweep_phase2(); | |
| 55 debug_only(private:) // End used for PSParallelCompact debugging | |
| 56 // Update pointers | |
| 57 static void mark_sweep_phase3(); | |
| 58 // Move objects to new positions | |
| 59 static void mark_sweep_phase4(); | |
| 60 | |
| 61 debug_only(public:) // Used for PSParallelCompact debugging | |
| 62 // Temporary data structures for traversal and storing/restoring marks | |
| 63 static void allocate_stacks(); | |
| 64 static void deallocate_stacks(); | |
| 65 static void set_ref_processor(ReferenceProcessor* rp) { // delete this method | |
| 66 _ref_processor = rp; | |
| 67 } | |
| 68 debug_only(private:) // End used for PSParallelCompact debugging | |
| 69 | |
| 70 // If objects are left in eden after a collection, try to move the boundary | |
| 71 // and absorb them into the old gen. Returns true if eden was emptied. | |
| 72 static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy, | |
| 73 PSYoungGen* young_gen, | |
| 74 PSOldGen* old_gen); | |
| 75 | |
| 76 // Reset time since last full gc | |
| 77 static void reset_millis_since_last_gc(); | |
| 78 | |
| 79 public: | |
| 80 static void invoke(bool clear_all_softrefs); | |
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81 static bool invoke_no_policy(bool clear_all_softrefs); |
| 0 | 82 |
| 83 static void initialize(); | |
| 84 | |
| 85 // Public accessors | |
| 86 static elapsedTimer* accumulated_time() { return &_accumulated_time; } | |
| 87 static CollectorCounters* counters() { return _counters; } | |
| 88 | |
| 89 // Time since last full gc (in milliseconds) | |
| 90 static jlong millis_since_last_gc(); | |
| 91 }; | |
| 1972 | 92 |
| 93 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP |