1 /* 2 * Copyright (c) 2007, 2013, 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_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP 27 28 #include "memory/collectorPolicy.hpp" 29 30 class ConcurrentMarkSweepPolicy : public TwoGenerationCollectorPolicy { 31 protected: 32 void initialize_alignments(); 33 void initialize_generations(); 34 35 public: 36 ConcurrentMarkSweepPolicy() {} 37 38 ConcurrentMarkSweepPolicy* as_concurrent_mark_sweep_policy() { return this; } 39 40 void initialize_gc_policy_counters(); 41 42 virtual void initialize_size_policy(size_t init_eden_size, 43 size_t init_promo_size, 44 size_t init_survivor_size); 45 46 // Returns true if the incremental mode is enabled. 47 virtual bool has_soft_ended_eden(); 48 }; 49 50 class ASConcurrentMarkSweepPolicy : public ConcurrentMarkSweepPolicy { 51 public: 52 53 // Initialize the jstat counters. This method requires a 54 // size policy. The size policy is expected to be created 55 // after the generations are fully initialized so the 56 // initialization of the counters need to be done post 57 // the initialization of the generations. 58 void initialize_gc_policy_counters(); 59 60 virtual CollectorPolicy::Name kind() { 61 return CollectorPolicy::ASConcurrentMarkSweepPolicyKind; 62 } 63 }; 64 65 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP