Wed, 23 Sep 2009 23:56:15 -0700
Merge
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 */
25 #include "incls/_precompiled.incl"
26 #include "incls/_cmsPermGen.cpp.incl"
28 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
29 CardTableRS* ct,
30 FreeBlockDictionary::DictionaryChoice dictionaryChoice) {
31 CMSPermGenGen* g =
32 new CMSPermGenGen(rs, initial_byte_size, -1, ct);
33 if (g == NULL) {
34 vm_exit_during_initialization("Could not allocate a CompactingPermGen");
35 }
37 g->initialize_performance_counters();
39 _gen = g;
40 }
42 HeapWord* CMSPermGen::mem_allocate(size_t size) {
43 Mutex* lock = _gen->freelistLock();
44 bool lock_owned = lock->owned_by_self();
45 if (lock_owned) {
46 MutexUnlocker mul(lock);
47 return mem_allocate_in_gen(size, _gen);
48 } else {
49 return mem_allocate_in_gen(size, _gen);
50 }
51 }
53 void CMSPermGen::compute_new_size() {
54 _gen->compute_new_size();
55 }
57 void CMSPermGenGen::initialize_performance_counters() {
59 const char* gen_name = "perm";
61 // Generation Counters - generation 2, 1 subspace
62 _gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space);
64 _gc_counters = NULL;
66 _space_counters = new GSpaceCounters(gen_name, 0,
67 _virtual_space.reserved_size(),
68 this, _gen_counters);
69 }