Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp @ 342:37f87013dfd8
6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
author | ysr |
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date | Thu, 05 Jun 2008 15:57:56 -0700 |
parents | |
children | 315a5d70b295 |
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1 /* | |
2 * Copyright 2001-2007 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 // The Concurrent Mark GC Thread (could be several in the future). | |
26 // This is copied from the Concurrent Mark Sweep GC Thread | |
27 // Still under construction. | |
28 | |
29 class ConcurrentMark; | |
30 | |
31 class ConcurrentMarkThread: public ConcurrentGCThread { | |
32 friend class VMStructs; | |
33 | |
34 double _vtime_start; // Initial virtual time. | |
35 double _vtime_accum; // Accumulated virtual time. | |
36 | |
37 double _vtime_mark_accum; | |
38 double _vtime_count_accum; | |
39 | |
40 public: | |
41 virtual void run(); | |
42 | |
43 private: | |
44 ConcurrentMark* _cm; | |
45 bool _started; | |
46 bool _in_progress; | |
47 | |
48 void sleepBeforeNextCycle(); | |
49 | |
50 static SurrogateLockerThread* _slt; | |
51 | |
52 public: | |
53 // Constructor | |
54 ConcurrentMarkThread(ConcurrentMark* cm); | |
55 | |
56 static void makeSurrogateLockerThread(TRAPS); | |
57 static SurrogateLockerThread* slt() { return _slt; } | |
58 | |
59 // Printing | |
60 void print(); | |
61 | |
62 // Total virtual time so far. | |
63 double vtime_accum(); | |
64 // Marking virtual time so far | |
65 double vtime_mark_accum(); | |
66 // Counting virtual time so far. | |
67 double vtime_count_accum() { return _vtime_count_accum; } | |
68 | |
69 ConcurrentMark* cm() { return _cm; } | |
70 | |
71 void set_started() { _started = true; } | |
72 void clear_started() { _started = false; } | |
73 bool started() { return _started; } | |
74 | |
75 void set_in_progress() { _in_progress = true; } | |
76 void clear_in_progress() { _in_progress = false; } | |
77 bool in_progress() { return _in_progress; } | |
78 | |
79 // Yield for GC | |
80 void yield(); | |
81 | |
82 // shutdown | |
83 static void stop(); | |
84 }; |