1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/memory/generationSpec.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,70 @@
1.4 +/*
1.5 + * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_MEMORY_GENERATIONSPEC_HPP
1.29 +#define SHARE_VM_MEMORY_GENERATIONSPEC_HPP
1.30 +
1.31 +#include "memory/generation.hpp"
1.32 +
1.33 +// The specification of a generation. This class also encapsulates
1.34 +// some generation-specific behavior. This is done here rather than as a
1.35 +// virtual function of Generation because these methods are needed in
1.36 +// initialization of the Generations.
1.37 +class GenerationSpec : public CHeapObj<mtGC> {
1.38 + friend class VMStructs;
1.39 +private:
1.40 + Generation::Name _name;
1.41 + size_t _init_size;
1.42 + size_t _max_size;
1.43 +
1.44 +public:
1.45 + GenerationSpec(Generation::Name name, size_t init_size, size_t max_size) {
1.46 + _name = name;
1.47 + _init_size = init_size;
1.48 + _max_size = max_size;
1.49 + }
1.50 +
1.51 + Generation* init(ReservedSpace rs, int level, GenRemSet* remset);
1.52 +
1.53 + // Accessors
1.54 + Generation::Name name() const { return _name; }
1.55 + size_t init_size() const { return _init_size; }
1.56 + void set_init_size(size_t size) { _init_size = size; }
1.57 + size_t max_size() const { return _max_size; }
1.58 + void set_max_size(size_t size) { _max_size = size; }
1.59 +
1.60 + // Alignment
1.61 + void align(size_t alignment) {
1.62 + set_init_size(align_size_up(init_size(), alignment));
1.63 + set_max_size(align_size_up(max_size(), alignment));
1.64 + }
1.65 +
1.66 + // Return the number of regions contained in the generation which
1.67 + // might need to be independently covered by a remembered set.
1.68 + virtual int n_covered_regions() const { return 1; }
1.69 +};
1.70 +
1.71 +typedef GenerationSpec* GenerationSpecPtr;
1.72 +
1.73 +#endif // SHARE_VM_MEMORY_GENERATIONSPEC_HPP
