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1 /*
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2 * Copyright 2000-2003 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 ContigPermSpace;
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26 class CardTableModRefBS;
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27 class CompactingPermGenGen;
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28 class PermanentGenerationSpec;
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29
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30 // A PermGen implemented with a contiguous space.
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31 class CompactingPermGen: public PermGen {
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32 friend class VMStructs;
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33 protected:
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34 // The "generation" view.
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35 OneContigSpaceCardGeneration* _gen;
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36
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37 public:
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38 CompactingPermGen(ReservedSpace rs, ReservedSpace shared_rs,
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39 size_t initial_byte_size, GenRemSet* remset,
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40 PermanentGenerationSpec* perm_spec);
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41
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42 HeapWord* mem_allocate(size_t size);
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43
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44 void compute_new_size();
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45
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46 Generation* as_gen() const { return _gen; }
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47
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48 };
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