Mercurial > hg > truffle
diff src/share/vm/services/memTrackWorker.hpp @ 7464:ecd24264898b
8005048: NMT: #loaded classes needs to just show the # defined classes
Summary: Count number of instance classes so that it matches class metadata size
Reviewed-by: coleenp, acorn
author | zgu |
---|---|
date | Tue, 08 Jan 2013 14:04:25 -0500 |
parents | 7e5976e66c62 |
children | 4102b59539ce |
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--- a/src/share/vm/services/memTrackWorker.hpp Fri Dec 07 10:55:16 2012 -0800 +++ b/src/share/vm/services/memTrackWorker.hpp Tue Jan 08 14:04:25 2013 -0500 @@ -32,17 +32,58 @@ // Maximum MAX_GENERATIONS generation data can be tracked. #define MAX_GENERATIONS 512 +class GenerationData : public _ValueObj { + private: + int _number_of_classes; + MemRecorder* _recorder_list; + + public: + GenerationData(): _number_of_classes(0), _recorder_list(NULL) { } + + inline int number_of_classes() const { return _number_of_classes; } + inline void set_number_of_classes(long num) { _number_of_classes = num; } + + inline MemRecorder* next_recorder() { + if (_recorder_list == NULL) { + return NULL; + } else { + MemRecorder* tmp = _recorder_list; + _recorder_list = _recorder_list->next(); + return tmp; + } + } + + inline bool has_more_recorder() const { + return (_recorder_list != NULL); + } + + // add recorders to this generation + void add_recorders(MemRecorder* head) { + if (head != NULL) { + if (_recorder_list == NULL) { + _recorder_list = head; + } else { + MemRecorder* tmp = _recorder_list; + for (; tmp->next() != NULL; tmp = tmp->next()); + tmp->set_next(head); + } + } + } + + void reset(); + + NOT_PRODUCT(MemRecorder* peek() const { return _recorder_list; }) +}; class MemTrackWorker : public NamedThread { private: - // circular buffer. This buffer contains recorders to be merged into global + // circular buffer. This buffer contains generation data to be merged into global // snaphsot. - // Each slot holds a linked list of memory recorders, that contains one - // generation of memory data. - MemRecorder* _gen[MAX_GENERATIONS]; - int _head, _tail; // head and tail pointers to above circular buffer + // Each slot holds a generation + GenerationData _gen[MAX_GENERATIONS]; + int _head, _tail; // head and tail pointers to above circular buffer - bool _has_error; + bool _has_error; public: MemTrackWorker(); @@ -56,7 +97,7 @@ inline bool has_error() const { return _has_error; } // task at synchronization point - void at_sync_point(MemRecorder* pending_recorders); + void at_sync_point(MemRecorder* pending_recorders, int number_of_classes); // for debugging purpose, they are not thread safe. NOT_PRODUCT(static int count_recorder(const MemRecorder* head);)