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