Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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1 /* | |
2 * Copyright 2001-2005 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 class PSAdaptiveSizePolicy; | |
26 class PSYoungGen; | |
27 class PSOldGen; | |
28 | |
29 class PSMarkSweep : public MarkSweep { | |
30 private: | |
31 static elapsedTimer _accumulated_time; | |
32 static unsigned int _total_invocations; | |
33 static jlong _time_of_last_gc; // ms | |
34 static CollectorCounters* _counters; | |
35 | |
36 // Closure accessors | |
37 static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; } | |
38 static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; } | |
39 static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; } | |
40 static OopClosure* adjust_root_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_root_pointer_closure; } | |
41 static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; } | |
42 | |
43 debug_only(public:) // Used for PSParallelCompact debugging | |
44 // Mark live objects | |
45 static void mark_sweep_phase1(bool clear_all_softrefs); | |
46 // Calculate new addresses | |
47 static void mark_sweep_phase2(); | |
48 debug_only(private:) // End used for PSParallelCompact debugging | |
49 // Update pointers | |
50 static void mark_sweep_phase3(); | |
51 // Move objects to new positions | |
52 static void mark_sweep_phase4(); | |
53 | |
54 debug_only(public:) // Used for PSParallelCompact debugging | |
55 // Temporary data structures for traversal and storing/restoring marks | |
56 static void allocate_stacks(); | |
57 static void deallocate_stacks(); | |
58 static void set_ref_processor(ReferenceProcessor* rp) { // delete this method | |
59 _ref_processor = rp; | |
60 } | |
61 debug_only(private:) // End used for PSParallelCompact debugging | |
62 | |
63 // If objects are left in eden after a collection, try to move the boundary | |
64 // and absorb them into the old gen. Returns true if eden was emptied. | |
65 static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy, | |
66 PSYoungGen* young_gen, | |
67 PSOldGen* old_gen); | |
68 | |
69 // Reset time since last full gc | |
70 static void reset_millis_since_last_gc(); | |
71 | |
72 public: | |
73 static void invoke(bool clear_all_softrefs); | |
74 static void invoke_no_policy(bool clear_all_softrefs); | |
75 | |
76 static void initialize(); | |
77 | |
78 // Public accessors | |
79 static elapsedTimer* accumulated_time() { return &_accumulated_time; } | |
80 static unsigned int total_invocations() { return _total_invocations; } | |
81 static CollectorCounters* counters() { return _counters; } | |
82 | |
83 // Time since last full gc (in milliseconds) | |
84 static jlong millis_since_last_gc(); | |
85 }; |