| /* |
| * Copyright (c) 2003, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |
| #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |
| |
| #include "gc_implementation/parallelScavenge/objectStartArray.hpp" |
| #include "gc_implementation/parallelScavenge/psOldGen.hpp" |
| #include "gc_implementation/parallelScavenge/psVirtualspace.hpp" |
| #include "gc_implementation/shared/generationCounters.hpp" |
| #include "gc_implementation/shared/mutableSpace.hpp" |
| #include "gc_implementation/shared/spaceCounters.hpp" |
| |
| class ASPSOldGen : public PSOldGen { |
| friend class VMStructs; |
| size_t _gen_size_limit; // Largest size the generation's reserved size |
| // can grow. |
| public: |
| ASPSOldGen(size_t initial_byte_size, |
| size_t minimum_byte_size, |
| size_t byte_size_limit, |
| const char* gen_name, int level); |
| ASPSOldGen(PSVirtualSpace* vs, |
| size_t initial_byte_size, |
| size_t minimum_byte_size, |
| size_t byte_size_limit, |
| const char* gen_name, int level); |
| size_t gen_size_limit() { return _gen_size_limit; } |
| size_t max_gen_size() { return _reserved.byte_size(); } |
| void set_gen_size_limit(size_t v) { _gen_size_limit = v; } |
| |
| virtual void initialize_work(const char* perf_data_name, int level); |
| |
| // After a shrink or expand reset the generation |
| void reset_after_change(); |
| |
| // Return number of bytes that the virtual space in the generation is willing |
| // to expand or contract. The results from these methods should feed into the |
| // decisions about adjusting the virtual space. |
| size_t available_for_expansion(); |
| size_t available_for_contraction(); |
| |
| // Accessors |
| void set_reserved(MemRegion v) { _reserved = v; } |
| |
| // Debugging support |
| virtual const char* short_name() const { return "ASPSOldGen"; } |
| }; |
| |
| #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |