1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/asPSYoungGen.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,77 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2010, 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_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSYOUNGGEN_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSYOUNGGEN_HPP
1.30 +
1.31 +#include "gc_implementation/parallelScavenge/objectStartArray.hpp"
1.32 +#include "gc_implementation/parallelScavenge/psVirtualspace.hpp"
1.33 +#include "gc_implementation/parallelScavenge/psYoungGen.hpp"
1.34 +#include "gc_implementation/shared/generationCounters.hpp"
1.35 +#include "gc_implementation/shared/mutableSpace.hpp"
1.36 +#include "gc_implementation/shared/spaceCounters.hpp"
1.37 +#include "gc_implementation/shared/spaceDecorator.hpp"
1.38 +
1.39 +class ASPSYoungGen : public PSYoungGen {
1.40 + friend class VMStructs;
1.41 + private:
1.42 + size_t _gen_size_limit;
1.43 + protected:
1.44 + virtual size_t available_to_live();
1.45 +
1.46 + public:
1.47 + ASPSYoungGen(size_t initial_byte_size,
1.48 + size_t minimum_byte_size,
1.49 + size_t byte_size_limit);
1.50 +
1.51 + ASPSYoungGen(PSVirtualSpace* vs,
1.52 + size_t initial_byte_size,
1.53 + size_t minimum_byte_size,
1.54 + size_t byte_size_limit);
1.55 +
1.56 + void initialize(ReservedSpace rs, size_t alignment);
1.57 + void initialize_virtual_space(ReservedSpace rs, size_t alignment);
1.58 +
1.59 + size_t gen_size_limit() { return _gen_size_limit; }
1.60 + void set_gen_size_limit(size_t v) { _gen_size_limit = v; }
1.61 +
1.62 + bool resize_generation(size_t eden_size, size_t survivor_size);
1.63 + void resize_spaces(size_t eden_size, size_t survivor_size);
1.64 +
1.65 + // Adjust eden to be consistent with the virtual space.
1.66 + void reset_after_change();
1.67 +
1.68 + // Adaptive size policy support
1.69 + // Return number of bytes that the generation can expand/contract.
1.70 + size_t available_for_expansion();
1.71 + size_t available_for_contraction();
1.72 +
1.73 + // Accessors
1.74 + void set_reserved(MemRegion v) { _reserved = v; }
1.75 +
1.76 + // Printing support
1.77 + virtual const char* short_name() const { return "ASPSYoungGen"; }
1.78 +};
1.79 +
1.80 +#endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSYOUNGGEN_HPP
