1 /*
2 * Copyright (c) 2001, 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.
22 *
23 */
24
25 #ifndef SHARE_VM_MEMORY_FREELIST_HPP
26 #define SHARE_VM_MEMORY_FREELIST_HPP
27
28 #include "gc_implementation/shared/allocationStats.hpp"
29
30 class CompactibleFreeListSpace;
31
32 // A class for maintaining a free list of Chunk's. The FreeList
33 // maintains a the structure of the list (head, tail, etc.) plus
34 // statistics for allocations from the list. The links between items
35 // are not part of FreeList. The statistics are
36 // used to make decisions about coalescing Chunk's when they
37 // are swept during collection.
38 //
39 // See the corresponding .cpp file for a description of the specifics
40 // for that implementation.
41
42 class Mutex;
43
44 template <class Chunk_t>
45 class FreeList VALUE_OBJ_CLASS_SPEC {
46 friend class CompactibleFreeListSpace;
47 friend class VMStructs;
48
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1 /*
2 * Copyright (c) 2001, 2015, 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.
22 *
23 */
24
25 #ifndef SHARE_VM_MEMORY_FREELIST_HPP
26 #define SHARE_VM_MEMORY_FREELIST_HPP
27
28 #include "gc/cms/allocationStats.hpp"
29
30 class CompactibleFreeListSpace;
31
32 // A class for maintaining a free list of Chunk's. The FreeList
33 // maintains a the structure of the list (head, tail, etc.) plus
34 // statistics for allocations from the list. The links between items
35 // are not part of FreeList. The statistics are
36 // used to make decisions about coalescing Chunk's when they
37 // are swept during collection.
38 //
39 // See the corresponding .cpp file for a description of the specifics
40 // for that implementation.
41
42 class Mutex;
43
44 template <class Chunk_t>
45 class FreeList VALUE_OBJ_CLASS_SPEC {
46 friend class CompactibleFreeListSpace;
47 friend class VMStructs;
48
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