Mercurial > hg > graal-compiler
diff src/share/vm/gc_implementation/parallelScavenge/asPSYoungGen.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/asPSYoungGen.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,64 @@ +/* + * 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"; } +};