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1 /*
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2 * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 class ConcurrentMarkSweepPolicy : public TwoGenerationCollectorPolicy {
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26 protected:
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27 void initialize_generations();
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28
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29 public:
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30 ConcurrentMarkSweepPolicy();
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31
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32 ConcurrentMarkSweepPolicy* as_concurrent_mark_sweep_policy() { return this; }
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33
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34 void initialize_gc_policy_counters();
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35 #if 1
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36 virtual void initialize_size_policy(size_t init_eden_size,
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37 size_t init_promo_size,
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38 size_t init_survivor_size);
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39 #endif
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40
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41 // Returns true if the incremental mode is enabled.
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42 virtual bool has_soft_ended_eden();
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43 };
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44
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45 class ASConcurrentMarkSweepPolicy : public ConcurrentMarkSweepPolicy {
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46 public:
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47
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48 // Initialize the jstat counters. This method requires a
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49 // size policy. The size policy is expected to be created
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50 // after the generations are fully initialized so the
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51 // initialization of the counters need to be done post
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52 // the initialization of the generations.
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53 void initialize_gc_policy_counters();
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54
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55 virtual CollectorPolicy::Name kind() {
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56 return CollectorPolicy::ASConcurrentMarkSweepPolicyKind;
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57 }
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58 };
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