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src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp@710a3c8b516e (annotated)
src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 6198
- 55fb97c4c58d
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |
| aoqi@0 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "gc_implementation/parallelScavenge/objectStartArray.hpp" |
| aoqi@0 | 29 | #include "gc_implementation/parallelScavenge/psOldGen.hpp" |
| aoqi@0 | 30 | #include "gc_implementation/parallelScavenge/psVirtualspace.hpp" |
| aoqi@0 | 31 | #include "gc_implementation/shared/generationCounters.hpp" |
| aoqi@0 | 32 | #include "gc_implementation/shared/mutableSpace.hpp" |
| aoqi@0 | 33 | #include "gc_implementation/shared/spaceCounters.hpp" |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | class ASPSOldGen : public PSOldGen { |
| aoqi@0 | 36 | friend class VMStructs; |
| aoqi@0 | 37 | size_t _gen_size_limit; // Largest size the generation's reserved size |
| aoqi@0 | 38 | // can grow. |
| aoqi@0 | 39 | public: |
| aoqi@0 | 40 | ASPSOldGen(size_t initial_byte_size, |
| aoqi@0 | 41 | size_t minimum_byte_size, |
| aoqi@0 | 42 | size_t byte_size_limit, |
| aoqi@0 | 43 | const char* gen_name, int level); |
| aoqi@0 | 44 | ASPSOldGen(PSVirtualSpace* vs, |
| aoqi@0 | 45 | size_t initial_byte_size, |
| aoqi@0 | 46 | size_t minimum_byte_size, |
| aoqi@0 | 47 | size_t byte_size_limit, |
| aoqi@0 | 48 | const char* gen_name, int level); |
| aoqi@0 | 49 | size_t gen_size_limit() { return _gen_size_limit; } |
| aoqi@0 | 50 | size_t max_gen_size() { return _reserved.byte_size(); } |
| aoqi@0 | 51 | void set_gen_size_limit(size_t v) { _gen_size_limit = v; } |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | virtual void initialize_work(const char* perf_data_name, int level); |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | // After a shrink or expand reset the generation |
| aoqi@0 | 56 | void reset_after_change(); |
| aoqi@0 | 57 | |
| aoqi@0 | 58 | // Return number of bytes that the virtual space in the generation is willing |
| aoqi@0 | 59 | // to expand or contract. The results from these methods should feed into the |
| aoqi@0 | 60 | // decisions about adjusting the virtual space. |
| aoqi@0 | 61 | size_t available_for_expansion(); |
| aoqi@0 | 62 | size_t available_for_contraction(); |
| aoqi@0 | 63 | |
| aoqi@0 | 64 | // Accessors |
| aoqi@0 | 65 | void set_reserved(MemRegion v) { _reserved = v; } |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | // Debugging support |
| aoqi@0 | 68 | virtual const char* short_name() const { return "ASPSOldGen"; } |
| aoqi@0 | 69 | }; |
| aoqi@0 | 70 | |
| aoqi@0 | 71 | #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |
