39 double _vtime_start; // Initial virtual time.
40 double _vtime_accum; // Accumulated virtual time.
41 double _vtime_mark_accum;
42
43 G1ConcurrentMark* _cm;
44
45 enum State {
46 Idle,
47 Started,
48 InProgress
49 };
50
51 volatile State _state;
52
53 void sleepBeforeNextCycle();
54 void delay_to_keep_mmu(G1CollectorPolicy* g1_policy, bool remark);
55
56 void run_service();
57 void stop_service();
58
59 static SurrogateLockerThread* _slt;
60
61 public:
62 // Constructor
63 ConcurrentMarkThread(G1ConcurrentMark* cm);
64
65 static void makeSurrogateLockerThread(TRAPS);
66 static SurrogateLockerThread* slt() { return _slt; }
67
68 // Total virtual time so far for this thread and concurrent marking tasks.
69 double vtime_accum();
70 // Marking virtual time so far this thread and concurrent marking tasks.
71 double vtime_mark_accum();
72
73 G1ConcurrentMark* cm() { return _cm; }
74
75 void set_idle() { assert(_state != Started, "must not be starting a new cycle"); _state = Idle; }
76 bool idle() { return _state == Idle; }
77 void set_started() { assert(_state == Idle, "cycle in progress"); _state = Started; }
78 bool started() { return _state == Started; }
79 void set_in_progress() { assert(_state == Started, "must be starting a cycle"); _state = InProgress; }
80 bool in_progress() { return _state == InProgress; }
81
82 // Returns true from the moment a marking cycle is
83 // initiated (during the initial-mark pause when started() is set)
84 // to the moment when the cycle completes (just after the next
85 // marking bitmap has been cleared and in_progress() is
86 // cleared). While during_cycle() is true we will not start another cycle
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39 double _vtime_start; // Initial virtual time.
40 double _vtime_accum; // Accumulated virtual time.
41 double _vtime_mark_accum;
42
43 G1ConcurrentMark* _cm;
44
45 enum State {
46 Idle,
47 Started,
48 InProgress
49 };
50
51 volatile State _state;
52
53 void sleepBeforeNextCycle();
54 void delay_to_keep_mmu(G1CollectorPolicy* g1_policy, bool remark);
55
56 void run_service();
57 void stop_service();
58
59 public:
60 // Constructor
61 ConcurrentMarkThread(G1ConcurrentMark* cm);
62
63 // Total virtual time so far for this thread and concurrent marking tasks.
64 double vtime_accum();
65 // Marking virtual time so far this thread and concurrent marking tasks.
66 double vtime_mark_accum();
67
68 G1ConcurrentMark* cm() { return _cm; }
69
70 void set_idle() { assert(_state != Started, "must not be starting a new cycle"); _state = Idle; }
71 bool idle() { return _state == Idle; }
72 void set_started() { assert(_state == Idle, "cycle in progress"); _state = Started; }
73 bool started() { return _state == Started; }
74 void set_in_progress() { assert(_state == Started, "must be starting a cycle"); _state = InProgress; }
75 bool in_progress() { return _state == InProgress; }
76
77 // Returns true from the moment a marking cycle is
78 // initiated (during the initial-mark pause when started() is set)
79 // to the moment when the cycle completes (just after the next
80 // marking bitmap has been cleared and in_progress() is
81 // cleared). While during_cycle() is true we will not start another cycle
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