Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp @ 0:a61af66fc99e jdk7-b24
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| author | duke |
|---|---|
| date | Sat, 01 Dec 2007 00:00:00 +0000 |
| parents | |
| children | c18cbe5936b8 |
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| -1:000000000000 | 0:a61af66fc99e |
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| 1 /* | |
| 2 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 class ASPSOldGen : public PSOldGen { | |
| 26 friend class VMStructs; | |
| 27 size_t _gen_size_limit; // Largest size the generation's reserved size | |
| 28 // can grow. | |
| 29 public: | |
| 30 ASPSOldGen(size_t initial_byte_size, | |
| 31 size_t minimum_byte_size, | |
| 32 size_t byte_size_limit, | |
| 33 const char* gen_name, int level); | |
| 34 ASPSOldGen(PSVirtualSpace* vs, | |
| 35 size_t initial_byte_size, | |
| 36 size_t minimum_byte_size, | |
| 37 size_t byte_size_limit, | |
| 38 const char* gen_name, int level); | |
| 39 size_t gen_size_limit() { return _gen_size_limit; } | |
| 40 size_t max_gen_size() { return _reserved.byte_size(); } | |
| 41 void set_gen_size_limit(size_t v) { _gen_size_limit = v; } | |
| 42 | |
| 43 // After a shrink or expand reset the generation | |
| 44 void reset_after_change(); | |
| 45 | |
| 46 // Return number of bytes that the virtual space in the generation is willing | |
| 47 // to expand or contract. The results from these methods should feed into the | |
| 48 // decisions about adjusting the virtual space. | |
| 49 size_t available_for_expansion(); | |
| 50 size_t available_for_contraction(); | |
| 51 | |
| 52 // Accessors | |
| 53 void set_reserved(MemRegion v) { _reserved = v; } | |
| 54 | |
| 55 // Debugging support | |
| 56 virtual const char* short_name() const { return "ASPSOldGen"; } | |
| 57 }; |