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/*
* Copyright (c) 2007 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 PSGenerationPool : public CollectedMemoryPool {
private:
PSOldGen* _gen;
public:
PSGenerationPool(PSOldGen* pool, const char* name, PoolType type, bool support_usage_threshold);
PSGenerationPool(PSPermGen* pool, const char* name, PoolType type, bool support_usage_threshold);
MemoryUsage get_memory_usage();
size_t used_in_bytes() { return _gen->used_in_bytes(); }
size_t max_size() const { return _gen->reserved().byte_size(); }
};
class EdenMutableSpacePool : public CollectedMemoryPool {
private:
PSYoungGen* _gen;
MutableSpace* _space;
public:
EdenMutableSpacePool(PSYoungGen* gen,
MutableSpace* space,
const char* name,
PoolType type,
bool support_usage_threshold);
MutableSpace* space() { return _space; }
MemoryUsage get_memory_usage();
size_t used_in_bytes() { return space()->used_in_bytes(); }
size_t max_size() const {
// Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
return _gen->max_size() - _gen->from_space()->capacity_in_bytes() - _gen->to_space()->capacity_in_bytes();
}
};
class SurvivorMutableSpacePool : public CollectedMemoryPool {
private:
PSYoungGen* _gen;
public:
SurvivorMutableSpacePool(PSYoungGen* gen,
const char* name,
PoolType type,
bool support_usage_threshold);
MemoryUsage get_memory_usage();
size_t used_in_bytes() {
return _gen->from_space()->used_in_bytes();
}
size_t committed_in_bytes() {
return _gen->from_space()->capacity_in_bytes();
}
size_t max_size() const {
// Return current committed size of the from-space
return _gen->from_space()->capacity_in_bytes();
}
};
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