26 #define SHARE_VM_GC_G1_G1CONCURRENTREFINETHREAD_HPP
27
28 #include "gc/g1/dirtyCardQueue.hpp"
29 #include "gc/shared/concurrentGCThread.hpp"
30
31 // Forward Decl.
32 class CardTableEntryClosure;
33 class G1ConcurrentRefine;
34
35 // One or more G1 Concurrent Refinement Threads may be active if concurrent
36 // refinement is in progress.
37 class G1ConcurrentRefineThread: public ConcurrentGCThread {
38 friend class VMStructs;
39 friend class G1CollectedHeap;
40
41 double _vtime_start; // Initial virtual time.
42 double _vtime_accum; // Accumulated virtual time.
43 uint _worker_id;
44 uint _worker_id_offset;
45
46 // The refinement threads collection is linked list. A predecessor can activate a successor
47 // when the number of the rset update buffer crosses a certain threshold. A successor
48 // would self-deactivate when the number of the buffers falls below the threshold.
49 bool _active;
50 G1ConcurrentRefineThread* _next;
51 Monitor* _monitor;
52 G1ConcurrentRefine* _cr;
53
54 // This thread's activation/deactivation thresholds
55 size_t _activation_threshold;
56 size_t _deactivation_threshold;
57
58 void wait_for_completed_buffers();
59
60 void set_active(bool x) { _active = x; }
61 bool is_active();
62 void activate();
63 void deactivate();
64
65 bool is_primary() { return (_worker_id == 0); }
66
67 void run_service();
68 void stop_service();
69
70 public:
71 // Constructor
72 G1ConcurrentRefineThread(G1ConcurrentRefine* cr, G1ConcurrentRefineThread* next,
73 uint worker_id_offset, uint worker_id,
74 size_t activate, size_t deactivate);
75
76 void update_thresholds(size_t activate, size_t deactivate);
77 size_t activation_threshold() const { return _activation_threshold; }
78
79 // Total virtual time so far.
80 double vtime_accum() { return _vtime_accum; }
81
82 G1ConcurrentRefine* cr() { return _cr; }
83 };
84
85 #endif // SHARE_VM_GC_G1_G1CONCURRENTREFINETHREAD_HPP
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26 #define SHARE_VM_GC_G1_G1CONCURRENTREFINETHREAD_HPP
27
28 #include "gc/g1/dirtyCardQueue.hpp"
29 #include "gc/shared/concurrentGCThread.hpp"
30
31 // Forward Decl.
32 class CardTableEntryClosure;
33 class G1ConcurrentRefine;
34
35 // One or more G1 Concurrent Refinement Threads may be active if concurrent
36 // refinement is in progress.
37 class G1ConcurrentRefineThread: public ConcurrentGCThread {
38 friend class VMStructs;
39 friend class G1CollectedHeap;
40
41 double _vtime_start; // Initial virtual time.
42 double _vtime_accum; // Accumulated virtual time.
43 uint _worker_id;
44 uint _worker_id_offset;
45
46 bool _active;
47 Monitor* _monitor;
48 G1ConcurrentRefine* _cr;
49
50 void wait_for_completed_buffers();
51
52 void set_active(bool x) { _active = x; }
53 bool is_active();
54 // Deactivate this thread.
55 void deactivate();
56
57 bool is_primary() { return (_worker_id == 0); }
58
59 void run_service();
60 void stop_service();
61 public:
62 G1ConcurrentRefineThread(G1ConcurrentRefine* cg1r, uint worker_id);
63
64 // Activate this thread.
65 void activate();
66
67 // Total virtual time so far.
68 double vtime_accum() { return _vtime_accum; }
69 };
70
71 #endif // SHARE_VM_GC_G1_G1CONCURRENTREFINETHREAD_HPP
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