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