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. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 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. 31 class G1ConcurrentRefine; 32 33 // One or more G1 Concurrent Refinement Threads may be active if concurrent 34 // refinement is in progress. 35 class 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(); 57 public: 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