1 /* 2 * Copyright (c) 2007, 2010, 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_generations(); 33 34 public: 35 ConcurrentMarkSweepPolicy(); 36 37 ConcurrentMarkSweepPolicy* as_concurrent_mark_sweep_policy() { return this; } 38 39 void initialize_gc_policy_counters(); 40 41 virtual void initialize_size_policy(size_t init_eden_size, 42 size_t init_promo_size, 43 size_t init_survivor_size); 44 45 // Returns true if the incremental mode is enabled. 46 virtual bool has_soft_ended_eden(); 47 }; 48 49 class ASConcurrentMarkSweepPolicy : public ConcurrentMarkSweepPolicy { 50 public: 51 52 // Initialize the jstat counters. This method requires a 53 // size policy. The size policy is expected to be created 54 // after the generations are fully initialized so the 55 // initialization of the counters need to be done post 56 // the initialization of the generations. 57 void initialize_gc_policy_counters(); 58 59 virtual CollectorPolicy::Name kind() { 60 return CollectorPolicy::ASConcurrentMarkSweepPolicyKind; 61 } 62 }; 63 64 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP