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0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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0N/A * accompanied this code).
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0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A
1879N/A#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GSPACECOUNTERS_HPP
1879N/A#define SHARE_VM_GC_IMPLEMENTATION_SHARED_GSPACECOUNTERS_HPP
1879N/A
1879N/A#ifndef SERIALGC
1879N/A#include "gc_implementation/shared/generationCounters.hpp"
1879N/A#include "memory/generation.hpp"
1879N/A#include "runtime/perfData.hpp"
1879N/A#endif
1879N/A
0N/A// A GSpaceCounter is a holder class for performance counters
0N/A// that track a space;
0N/A
3863N/Aclass GSpaceCounters: public CHeapObj<mtGC> {
0N/A friend class VMStructs;
0N/A
0N/A private:
0N/A PerfVariable* _capacity;
0N/A PerfVariable* _used;
0N/A
0N/A // Constant PerfData types don't need to retain a reference.
0N/A // However, it's a good idea to document them here.
0N/A // PerfConstant* _size;
0N/A
0N/A Generation* _gen;
0N/A char* _name_space;
0N/A
0N/A public:
0N/A
0N/A GSpaceCounters(const char* name, int ordinal, size_t max_size, Generation* g,
0N/A GenerationCounters* gc, bool sampled=true);
0N/A
0N/A ~GSpaceCounters() {
3863N/A if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC);
0N/A }
0N/A
0N/A inline void update_capacity() {
0N/A _capacity->set_value(_gen->capacity());
0N/A }
0N/A
0N/A inline void update_used() {
0N/A _used->set_value(_gen->used());
0N/A }
0N/A
0N/A // special version of update_used() to allow the used value to be
0N/A // passed as a parameter. This method can can be used in cases were
0N/A // the utilization is already known and/or when the _gen->used()
0N/A // method is known to be expensive and we want to avoid unnecessary
0N/A // calls to it.
0N/A //
0N/A inline void update_used(size_t used) {
0N/A _used->set_value(used);
0N/A }
0N/A
0N/A inline void inc_used(size_t size) {
0N/A _used->inc(size);
0N/A }
0N/A
0N/A debug_only(
0N/A // for security reasons, we do not allow arbitrary reads from
0N/A // the counters as they may live in shared memory.
0N/A jlong used() {
0N/A return _used->get_value();
0N/A }
0N/A jlong capacity() {
0N/A return _used->get_value();
0N/A }
0N/A )
0N/A
0N/A inline void update_all() {
0N/A update_used();
0N/A update_capacity();
0N/A }
0N/A
0N/A const char* name_space() const { return _name_space; }
0N/A};
0N/A
0N/Aclass GenerationUsedHelper : public PerfLongSampleHelper {
0N/A private:
0N/A Generation* _gen;
0N/A
0N/A public:
0N/A GenerationUsedHelper(Generation* g) : _gen(g) { }
0N/A
0N/A inline jlong take_sample() {
0N/A return _gen->used();
0N/A }
0N/A};
1879N/A
1879N/A#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GSPACECOUNTERS_HPP