Mercurial > hg > truffle
annotate src/share/vm/memory/permGen.hpp @ 1339:09ac706c2623
Merge
author | asaha |
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date | Wed, 24 Mar 2010 17:16:33 -0700 |
parents | 98cb887364d3 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
196 | 2 * Copyright 2000-2008 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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 // All heaps contains a "permanent generation," containing permanent | |
26 // (reflective) objects. This is like a regular generation in some ways, | |
27 // but unlike one in others, and so is split apart. | |
28 | |
29 class Generation; | |
30 class GenRemSet; | |
31 class CSpaceCounters; | |
32 | |
33 // PermGen models the part of the heap | |
34 | |
35 class PermGen : public CHeapObj { | |
36 friend class VMStructs; | |
37 protected: | |
38 size_t _capacity_expansion_limit; // maximum expansion allowed without a | |
605 | 39 // full gc occurring |
0 | 40 |
139
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
0
diff
changeset
|
41 HeapWord* mem_allocate_in_gen(size_t size, Generation* gen); |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
0
diff
changeset
|
42 |
0 | 43 public: |
44 enum Name { | |
45 MarkSweepCompact, MarkSweep, ConcurrentMarkSweep | |
46 }; | |
47 | |
48 // Permanent allocation (initialized) | |
49 virtual HeapWord* mem_allocate(size_t size) = 0; | |
50 | |
51 // Mark sweep support | |
52 virtual void compute_new_size() = 0; | |
53 | |
54 // Ideally, we would use MI (IMHO) but we'll do delegation instead. | |
55 virtual Generation* as_gen() const = 0; | |
56 | |
57 virtual void oop_iterate(OopClosure* cl) { | |
58 Generation* g = as_gen(); | |
59 assert(g != NULL, "as_gen() NULL"); | |
60 g->oop_iterate(cl); | |
61 } | |
62 | |
63 virtual void object_iterate(ObjectClosure* cl) { | |
64 Generation* g = as_gen(); | |
65 assert(g != NULL, "as_gen() NULL"); | |
66 g->object_iterate(cl); | |
67 } | |
68 | |
69 // Performance Counter support | |
70 virtual void update_counters() { | |
71 Generation* g = as_gen(); | |
72 assert(g != NULL, "as_gen() NULL"); | |
73 g->update_counters(); | |
74 } | |
75 }; |