1 /*
 2  * Copyright (c) 2013, 2019, Red Hat, Inc. All rights reserved.
 3  * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 5  *
 6  * This code is free software; you can redistribute it and/or modify it
 7  * under the terms of the GNU General Public License version 2 only, as
 8  * published by the Free Software Foundation.
 9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
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24  */
25 
26 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHMEMORYPOOL_HPP
27 #define SHARE_GC_SHENANDOAH_SHENANDOAHMEMORYPOOL_HPP
28 
29 #include "gc/shenandoah/shenandoahHeap.hpp"
30 #include "services/memoryPool.hpp"
31 #include "services/memoryUsage.hpp"
32 
33 class ShenandoahMemoryPool : public CollectedMemoryPool {
34 protected:
35    ShenandoahHeap* _heap;
36 
37 public:
38   explicit ShenandoahMemoryPool(ShenandoahHeap* heap,
39                        const char* name = "Shenandoah");
40   MemoryUsage get_memory_usage() override;
41   size_t used_in_bytes() override;
42   size_t max_size() const override;
43 
44 protected:
45   ShenandoahMemoryPool(ShenandoahHeap* heap,
46                        const char* name,
47                        size_t initial_capacity,
48                        size_t max_capacity);
49 };
50 
51 class ShenandoahGenerationalMemoryPool: public ShenandoahMemoryPool {
52 private:
53   ShenandoahGeneration* _generation;
54 public:
55   explicit ShenandoahGenerationalMemoryPool(ShenandoahHeap* heap, const char* name, ShenandoahGeneration* generation);
56   MemoryUsage get_memory_usage() override;
57   size_t used_in_bytes() override;
58 };
59 
60 class ShenandoahYoungGenMemoryPool : public ShenandoahGenerationalMemoryPool {
61 public:
62   explicit ShenandoahYoungGenMemoryPool(ShenandoahHeap* heap);
63 };
64 
65 class ShenandoahOldGenMemoryPool : public ShenandoahGenerationalMemoryPool {
66 public:
67   explicit ShenandoahOldGenMemoryPool(ShenandoahHeap* heap);
68 };
69 
70 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHMEMORYPOOL_HPP