Mercurial > hg > truffle
diff src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,57 @@ +/* + * 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 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; } + + // 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"; } +};