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comparison src/share/vm/gc_implementation/parallelScavenge/psPermGen.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2001-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 class AdaptivePaddedAverage;
26
27 class PSPermGen : public PSOldGen {
28 friend class VMStructs;
29 protected:
30 AdaptivePaddedAverage* _avg_size; // Used for sizing
31 size_t _last_used; // Amount used at last GC, used for sizing
32
33 public:
34 // Initialize the generation.
35 PSPermGen(ReservedSpace rs, size_t alignment, size_t initial_byte_size,
36 size_t minimum_byte_size, size_t maximum_byte_size,
37 const char* gen_name, int level);
38
39 // Permanent Gen special allocation. Uses the OldGen allocation
40 // routines, which should not be directly called on this generation.
41 HeapWord* allocate_permanent(size_t word_size);
42
43 // Size calculation.
44 void compute_new_size(size_t used_before_collection);
45
46 // MarkSweep code
47 virtual void precompact();
48
49 // Parallel old
50 virtual void move_and_update(ParCompactionManager* cm);
51
52 virtual const char* name() const { return "PSPermGen"; }
53 };