1 /*
2 * Copyright (c) 2003, 2010, 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_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSYOUNGGEN_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSYOUNGGEN_HPP
27
28 #include "gc_implementation/parallelScavenge/objectStartArray.hpp"
29 #include "gc_implementation/parallelScavenge/psVirtualspace.hpp"
30 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
31 #include "gc_implementation/shared/generationCounters.hpp"
32 #include "gc_implementation/shared/mutableSpace.hpp"
33 #include "gc_implementation/shared/spaceCounters.hpp"
34 #include "gc_implementation/shared/spaceDecorator.hpp"
35
36 class ASPSYoungGen : public PSYoungGen {
37 friend class VMStructs;
38 private:
39 size_t _gen_size_limit;
40 protected:
41 virtual size_t available_to_live();
42
43 public:
44 ASPSYoungGen(size_t initial_byte_size,
45 size_t minimum_byte_size,
46 size_t byte_size_limit);
47
48 ASPSYoungGen(PSVirtualSpace* vs,
49 size_t initial_byte_size,
50 size_t minimum_byte_size,
51 size_t byte_size_limit);
52
53 void initialize(ReservedSpace rs, size_t alignment);
54 void initialize_virtual_space(ReservedSpace rs, size_t alignment);
57 void set_gen_size_limit(size_t v) { _gen_size_limit = v; }
58
59 bool resize_generation(size_t eden_size, size_t survivor_size);
60 void resize_spaces(size_t eden_size, size_t survivor_size);
61
62 // Adjust eden to be consistent with the virtual space.
63 void reset_after_change();
64
65 // Adaptive size policy support
66 // Return number of bytes that the generation can expand/contract.
67 size_t available_for_expansion();
68 size_t available_for_contraction();
69
70 // Accessors
71 void set_reserved(MemRegion v) { _reserved = v; }
72
73 // Printing support
74 virtual const char* short_name() const { return "ASPSYoungGen"; }
75 };
76
77 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSYOUNGGEN_HPP
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1 /*
2 * Copyright (c) 2003, 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_GC_PARALLEL_ASPSYOUNGGEN_HPP
26 #define SHARE_VM_GC_PARALLEL_ASPSYOUNGGEN_HPP
27
28 #include "gc/parallel/objectStartArray.hpp"
29 #include "gc/parallel/psVirtualspace.hpp"
30 #include "gc/parallel/psYoungGen.hpp"
31 #include "gc/shared/generationCounters.hpp"
32 #include "gc/shared/mutableSpace.hpp"
33 #include "gc/shared/spaceCounters.hpp"
34 #include "gc/shared/spaceDecorator.hpp"
35
36 class ASPSYoungGen : public PSYoungGen {
37 friend class VMStructs;
38 private:
39 size_t _gen_size_limit;
40 protected:
41 virtual size_t available_to_live();
42
43 public:
44 ASPSYoungGen(size_t initial_byte_size,
45 size_t minimum_byte_size,
46 size_t byte_size_limit);
47
48 ASPSYoungGen(PSVirtualSpace* vs,
49 size_t initial_byte_size,
50 size_t minimum_byte_size,
51 size_t byte_size_limit);
52
53 void initialize(ReservedSpace rs, size_t alignment);
54 void initialize_virtual_space(ReservedSpace rs, size_t alignment);
57 void set_gen_size_limit(size_t v) { _gen_size_limit = v; }
58
59 bool resize_generation(size_t eden_size, size_t survivor_size);
60 void resize_spaces(size_t eden_size, size_t survivor_size);
61
62 // Adjust eden to be consistent with the virtual space.
63 void reset_after_change();
64
65 // Adaptive size policy support
66 // Return number of bytes that the generation can expand/contract.
67 size_t available_for_expansion();
68 size_t available_for_contraction();
69
70 // Accessors
71 void set_reserved(MemRegion v) { _reserved = v; }
72
73 // Printing support
74 virtual const char* short_name() const { return "ASPSYoungGen"; }
75 };
76
77 #endif // SHARE_VM_GC_PARALLEL_ASPSYOUNGGEN_HPP
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