duke@435: /*
duke@435:  * Copyright (c) 2007 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: class PSGenerationPool : public CollectedMemoryPool {
duke@435: private:
duke@435:   PSOldGen* _gen;
duke@435: 
duke@435: public:
duke@435:   PSGenerationPool(PSOldGen* pool, const char* name, PoolType type, bool support_usage_threshold);
duke@435:   PSGenerationPool(PSPermGen* pool, const char* name, PoolType type, bool support_usage_threshold);
duke@435: 
duke@435:   MemoryUsage get_memory_usage();
duke@435:   size_t used_in_bytes()              { return _gen->used_in_bytes(); }
duke@435:   size_t max_size() const             { return _gen->reserved().byte_size(); }
duke@435: };
duke@435: 
duke@435: class EdenMutableSpacePool : public CollectedMemoryPool {
duke@435: private:
duke@435:   PSYoungGen*   _gen;
duke@435:   MutableSpace* _space;
duke@435: 
duke@435: public:
duke@435:   EdenMutableSpacePool(PSYoungGen* gen,
duke@435:                        MutableSpace* space,
duke@435:                        const char* name,
duke@435:                        PoolType type,
duke@435:                        bool support_usage_threshold);
duke@435: 
duke@435:   MutableSpace* space()                     { return _space; }
duke@435:   MemoryUsage get_memory_usage();
duke@435:   size_t used_in_bytes()                    { return space()->used_in_bytes(); }
duke@435:   size_t max_size() const {
duke@435:     // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
duke@435:     return _gen->max_size() - _gen->from_space()->capacity_in_bytes() - _gen->to_space()->capacity_in_bytes();
duke@435:   }
duke@435: };
duke@435: 
duke@435: class SurvivorMutableSpacePool : public CollectedMemoryPool {
duke@435: private:
duke@435:   PSYoungGen*   _gen;
duke@435: 
duke@435: public:
duke@435:   SurvivorMutableSpacePool(PSYoungGen* gen,
duke@435:                            const char* name,
duke@435:                            PoolType type,
duke@435:                            bool support_usage_threshold);
duke@435: 
duke@435:   MemoryUsage get_memory_usage();
duke@435: 
duke@435:   size_t used_in_bytes() {
duke@435:     return _gen->from_space()->used_in_bytes();
duke@435:   }
duke@435:   size_t committed_in_bytes() {
duke@435:     return _gen->from_space()->capacity_in_bytes();
duke@435:   }
duke@435:   size_t max_size() const {
duke@435:     // Return current committed size of the from-space
duke@435:     return _gen->from_space()->capacity_in_bytes();
duke@435:   }
duke@435: };