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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
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* 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 ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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#ifndef SHARE_GC_Z_ZROOTSITERATOR_HPP
#define SHARE_GC_Z_ZROOTSITERATOR_HPP
#include "gc/shared/oopStorageSetParState.hpp"
#include "logging/log.hpp"
#include "memory/iterator.hpp"
#include "runtime/threadSMR.hpp"
template <typename Iterator>
class ZParallelApply {
private :
Iterator _iter;
volatile bool _completed;
public :
ZParallelApply() :
_iter(),
_completed(false) {}
template <typename ClosureType>
void apply(ClosureType* cl);
Iterator& iter() {
return _iter;
}
};
class ZStrongOopStorageSetIterator {
OopStorageSetStrongParState<true /* concurrent */, false /* is_const */> _iter;
public :
ZStrongOopStorageSetIterator();
void apply(OopClosure* cl);
};
class ZStrongCLDsIterator {
public :
void apply(CLDClosure* cl);
};
class ZJavaThreadsIterator {
private :
ThreadsListHandle _threads;
volatile uint _claimed;
uint claim();
public :
ZJavaThreadsIterator();
void apply(ThreadClosure* cl);
};
class ZNMethodsIterator {
public :
ZNMethodsIterator();
~ZNMethodsIterator();
void apply(NMethodClosure* cl);
};
class ZRootsIterator {
private :
ZParallelApply<ZStrongOopStorageSetIterator> _oop_storage_set;
ZParallelApply<ZStrongCLDsIterator> _class_loader_data_graph;
ZParallelApply<ZJavaThreadsIterator> _java_threads;
ZParallelApply<ZNMethodsIterator> _nmethods;
public :
ZRootsIterator(int cld_claim);
void apply(OopClosure* cl,
CLDClosure* cld_cl,
ThreadClosure* thread_cl,
NMethodClosure* nm_cl);
};
class ZWeakOopStorageSetIterator {
private :
OopStorageSetWeakParState<true /* concurrent */, false /* is_const */> _iter;
public :
ZWeakOopStorageSetIterator();
void apply(OopClosure* cl);
void report_num_dead();
};
class ZWeakRootsIterator {
private :
ZParallelApply<ZWeakOopStorageSetIterator> _oop_storage_set;
public :
void apply(OopClosure* cl);
void report_num_dead();
};
#endif // SHARE_GC_Z_ZROOTSITERATOR_HPP
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