0
|
1 /*
|
|
2 * Copyright (c) 2007 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 PSGenerationPool : public CollectedMemoryPool {
|
|
26 private:
|
|
27 PSOldGen* _gen;
|
|
28
|
|
29 public:
|
|
30 PSGenerationPool(PSOldGen* pool, const char* name, PoolType type, bool support_usage_threshold);
|
|
31 PSGenerationPool(PSPermGen* pool, const char* name, PoolType type, bool support_usage_threshold);
|
|
32
|
|
33 MemoryUsage get_memory_usage();
|
|
34 size_t used_in_bytes() { return _gen->used_in_bytes(); }
|
|
35 size_t max_size() const { return _gen->reserved().byte_size(); }
|
|
36 };
|
|
37
|
|
38 class EdenMutableSpacePool : public CollectedMemoryPool {
|
|
39 private:
|
|
40 PSYoungGen* _gen;
|
|
41 MutableSpace* _space;
|
|
42
|
|
43 public:
|
|
44 EdenMutableSpacePool(PSYoungGen* gen,
|
|
45 MutableSpace* space,
|
|
46 const char* name,
|
|
47 PoolType type,
|
|
48 bool support_usage_threshold);
|
|
49
|
|
50 MutableSpace* space() { return _space; }
|
|
51 MemoryUsage get_memory_usage();
|
|
52 size_t used_in_bytes() { return space()->used_in_bytes(); }
|
|
53 size_t max_size() const {
|
|
54 // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
|
|
55 return _gen->max_size() - _gen->from_space()->capacity_in_bytes() - _gen->to_space()->capacity_in_bytes();
|
|
56 }
|
|
57 };
|
|
58
|
|
59 class SurvivorMutableSpacePool : public CollectedMemoryPool {
|
|
60 private:
|
|
61 PSYoungGen* _gen;
|
|
62
|
|
63 public:
|
|
64 SurvivorMutableSpacePool(PSYoungGen* gen,
|
|
65 const char* name,
|
|
66 PoolType type,
|
|
67 bool support_usage_threshold);
|
|
68
|
|
69 MemoryUsage get_memory_usage();
|
|
70
|
|
71 size_t used_in_bytes() {
|
|
72 return _gen->from_space()->used_in_bytes();
|
|
73 }
|
|
74 size_t committed_in_bytes() {
|
|
75 return _gen->from_space()->capacity_in_bytes();
|
|
76 }
|
|
77 size_t max_size() const {
|
|
78 // Return current committed size of the from-space
|
|
79 return _gen->from_space()->capacity_in_bytes();
|
|
80 }
|
|
81 };
|