aoqi@0: /*
aoqi@0:  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_MEMORY_GENERATIONSPEC_HPP
aoqi@0: #define SHARE_VM_MEMORY_GENERATIONSPEC_HPP
aoqi@0: 
aoqi@0: #include "memory/generation.hpp"
aoqi@0: 
aoqi@0: // The specification of a generation.  This class also encapsulates
aoqi@0: // some generation-specific behavior.  This is done here rather than as a
aoqi@0: // virtual function of Generation because these methods are needed in
aoqi@0: // initialization of the Generations.
aoqi@0: class GenerationSpec : public CHeapObj<mtGC> {
aoqi@0:   friend class VMStructs;
aoqi@0: private:
aoqi@0:   Generation::Name _name;
aoqi@0:   size_t           _init_size;
aoqi@0:   size_t           _max_size;
aoqi@0: 
aoqi@0: public:
aoqi@0:   GenerationSpec(Generation::Name name, size_t init_size, size_t max_size) {
aoqi@0:     _name = name;
aoqi@0:     _init_size = init_size;
aoqi@0:     _max_size = max_size;
aoqi@0:   }
aoqi@0: 
aoqi@0:   Generation* init(ReservedSpace rs, int level, GenRemSet* remset);
aoqi@0: 
aoqi@0:   // Accessors
aoqi@0:   Generation::Name name()        const { return _name; }
aoqi@0:   size_t init_size()             const { return _init_size; }
aoqi@0:   void set_init_size(size_t size)      { _init_size = size; }
aoqi@0:   size_t max_size()              const { return _max_size; }
aoqi@0:   void set_max_size(size_t size)       { _max_size = size; }
aoqi@0: 
aoqi@0:   // Alignment
aoqi@0:   void align(size_t alignment) {
aoqi@0:     set_init_size(align_size_up(init_size(), alignment));
aoqi@0:     set_max_size(align_size_up(max_size(), alignment));
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Return the number of regions contained in the generation which
aoqi@0:   // might need to be independently covered by a remembered set.
aoqi@0:   virtual int n_covered_regions() const { return 1; }
aoqi@0: };
aoqi@0: 
aoqi@0: typedef GenerationSpec* GenerationSpecPtr;
aoqi@0: 
aoqi@0: #endif // SHARE_VM_MEMORY_GENERATIONSPEC_HPP