1/*
2 * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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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,
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23 */
24
25#ifndef SHARE_GC_G1_G1CONCURRENTREFINETHREAD_HPP
26#define SHARE_GC_G1_G1CONCURRENTREFINETHREAD_HPP
27
28#include "gc/shared/concurrentGCThread.hpp"
29
30// Forward Decl.
31class G1ConcurrentRefine;
32
33// One or more G1 Concurrent Refinement Threads may be active if concurrent
34// refinement is in progress.
35class G1ConcurrentRefineThread: public ConcurrentGCThread {
36 friend class VMStructs;
37 friend class G1CollectedHeap;
38
39 double _vtime_start; // Initial virtual time.
40 double _vtime_accum; // Accumulated virtual time.
41 uint _worker_id;
42
43 bool _active;
44 Monitor* _monitor;
45 G1ConcurrentRefine* _cr;
46
47 void wait_for_completed_buffers();
48
49 void set_active(bool x) { _active = x; }
50 // Deactivate this thread.
51 void deactivate();
52
53 bool is_primary() { return (_worker_id == 0); }
54
55 void run_service();
56 void stop_service();
57public:
58 G1ConcurrentRefineThread(G1ConcurrentRefine* cg1r, uint worker_id);
59
60 bool is_active();
61 // Activate this thread.
62 void activate();
63
64 // Total virtual time so far.
65 double vtime_accum() { return _vtime_accum; }
66};
67
68#endif // SHARE_GC_G1_G1CONCURRENTREFINETHREAD_HPP
69