Mon, 04 Aug 2014 10:48:10 -0700
8031323: Optionally align objects copied to survivor spaces
Reviewed-by: brutisso, tschatzl
1 /*
2 * Copyright (c) 2002, 2013, 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.
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23 */
25 #include "precompiled.hpp"
26 #include "utilities/macros.hpp"
27 #if INCLUDE_ALL_GCS
28 #include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
29 #endif // INCLUDE_ALL_GCS
30 #include "memory/freeBlockDictionary.hpp"
31 #include "memory/metachunk.hpp"
32 #include "runtime/thread.inline.hpp"
33 #include "utilities/macros.hpp"
35 #ifndef PRODUCT
36 template <class Chunk> Mutex* FreeBlockDictionary<Chunk>::par_lock() const {
37 return _lock;
38 }
40 template <class Chunk> void FreeBlockDictionary<Chunk>::set_par_lock(Mutex* lock) {
41 _lock = lock;
42 }
44 template <class Chunk> void FreeBlockDictionary<Chunk>::verify_par_locked() const {
45 #ifdef ASSERT
46 if (ParallelGCThreads > 0) {
47 Thread* my_thread = Thread::current();
48 if (my_thread->is_GC_task_thread()) {
49 assert(par_lock() != NULL, "Should be using locking?");
50 assert_lock_strong(par_lock());
51 }
52 }
53 #endif // ASSERT
54 }
55 #endif
57 template class FreeBlockDictionary<Metablock>;
58 template class FreeBlockDictionary<Metachunk>;
60 #if INCLUDE_ALL_GCS
61 // Explicitly instantiate for FreeChunk
62 template class FreeBlockDictionary<FreeChunk>;
63 #endif // INCLUDE_ALL_GCS