65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
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/*
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* Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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class ASPSYoungGen : public PSYoungGen {
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friend class VMStructs;
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private:
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size_t _gen_size_limit;
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protected:
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virtual size_t available_to_live();
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public:
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ASPSYoungGen(size_t initial_byte_size,
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size_t minimum_byte_size,
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size_t byte_size_limit);
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ASPSYoungGen(PSVirtualSpace* vs,
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size_t initial_byte_size,
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size_t minimum_byte_size,
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size_t byte_size_limit);
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void initialize(ReservedSpace rs, size_t alignment);
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void initialize_virtual_space(ReservedSpace rs, size_t alignment);
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size_t gen_size_limit() { return _gen_size_limit; }
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void set_gen_size_limit(size_t v) { _gen_size_limit = v; }
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bool resize_generation(size_t eden_size, size_t survivor_size);
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void resize_spaces(size_t eden_size, size_t survivor_size);
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// Adjust eden to be consistent with the virtual space.
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void reset_after_change();
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// Adaptive size policy support
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// Return number of bytes that the generation can expand/contract.
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size_t available_for_expansion();
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size_t available_for_contraction();
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// Accessors
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void set_reserved(MemRegion v) { _reserved = v; }
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// Printing support
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virtual const char* short_name() const { return "ASPSYoungGen"; }
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};
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