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comparison src/share/vm/services/memoryManager.hpp @ 3356:78542e2b5e35

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7036199: Adding a notification to the implementation of GarbageCollectorMXBeans Summary: Add a notification to the GarbageCollectorMXBeans Reviewed-by: acorn, mchung
author fparain
date Thu, 12 May 2011 10:30:11 -0700
parents f95d63e2154a
children bf864f701a4a
comparison
equal deleted inserted replaced
3355:f1cbbee6713b 3356:78542e2b5e35
164 elapsedTimer _gc_timer; // for measuring every GC duration 164 elapsedTimer _gc_timer; // for measuring every GC duration
165 GCStatInfo* _last_gc_stat; 165 GCStatInfo* _last_gc_stat;
166 Mutex* _last_gc_lock; 166 Mutex* _last_gc_lock;
167 GCStatInfo* _current_gc_stat; 167 GCStatInfo* _current_gc_stat;
168 int _num_gc_threads; 168 int _num_gc_threads;
169 volatile bool _notification_enabled;
169 public: 170 public:
170 GCMemoryManager(); 171 GCMemoryManager();
171 ~GCMemoryManager(); 172 ~GCMemoryManager();
172 173
173 void initialize_gc_stat_info(); 174 void initialize_gc_stat_info();
179 void set_num_gc_threads(int count) { _num_gc_threads = count; } 180 void set_num_gc_threads(int count) { _num_gc_threads = count; }
180 181
181 void gc_begin(bool recordGCBeginTime, bool recordPreGCUsage, 182 void gc_begin(bool recordGCBeginTime, bool recordPreGCUsage,
182 bool recordAccumulatedGCTime); 183 bool recordAccumulatedGCTime);
183 void gc_end(bool recordPostGCUsage, bool recordAccumulatedGCTime, 184 void gc_end(bool recordPostGCUsage, bool recordAccumulatedGCTime,
184 bool recordGCEndTime, bool countCollection); 185 bool recordGCEndTime, bool countCollection, GCCause::Cause cause);
185 186
186 void reset_gc_stat() { _num_collections = 0; _accumulated_timer.reset(); } 187 void reset_gc_stat() { _num_collections = 0; _accumulated_timer.reset(); }
187 188
188 // Copy out _last_gc_stat to the given destination, returning 189 // Copy out _last_gc_stat to the given destination, returning
189 // the collection count. Zero signifies no gc has taken place. 190 // the collection count. Zero signifies no gc has taken place.
190 size_t get_last_gc_stat(GCStatInfo* dest); 191 size_t get_last_gc_stat(GCStatInfo* dest);
191 192
193 void set_notification_enabled(bool enabled) { _notification_enabled = enabled; }
194 bool is_notification_enabled() { return _notification_enabled; }
192 virtual MemoryManager::Name kind() = 0; 195 virtual MemoryManager::Name kind() = 0;
193 }; 196 };
194 197
195 // These subclasses of GCMemoryManager are defined to include 198 // These subclasses of GCMemoryManager are defined to include
196 // GC-specific information. 199 // GC-specific information.