147 assert(index >= 0, "Index out of bound");
148 assert(index < mt_number_of_types, "Index out of bound");
149 return &_malloc[index];
150 }
151
152 inline MemoryCounter* malloc_overhead() {
153 return &_tracking_header;
154 }
155
156 // Total malloc'd memory amount
157 size_t total() const;
158 // Total malloc'd memory used by arenas
159 size_t total_arena() const;
160
161 inline size_t thread_count() const {
162 MallocMemorySnapshot* s = const_cast<MallocMemorySnapshot*>(this);
163 return s->by_type(mtThreadStack)->malloc_count();
164 }
165
166 void copy_to(MallocMemorySnapshot* s) {
167 s->_tracking_header = _tracking_header;
168 for (int index = 0; index < mt_number_of_types; index ++) {
169 s->_malloc[index] = _malloc[index];
170 }
171 }
172
173 // Make adjustment by subtracting chunks used by arenas
174 // from total chunks to get total free chunk size
175 void make_adjustment();
176 };
177
178 /*
179 * This class is for collecting malloc statistics at summary level
180 */
181 class MallocMemorySummary : AllStatic {
182 private:
183 // Reserve memory for placement of MallocMemorySnapshot object
184 static size_t _snapshot[CALC_OBJ_SIZE_IN_TYPE(MallocMemorySnapshot, size_t)];
185
186 public:
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147 assert(index >= 0, "Index out of bound");
148 assert(index < mt_number_of_types, "Index out of bound");
149 return &_malloc[index];
150 }
151
152 inline MemoryCounter* malloc_overhead() {
153 return &_tracking_header;
154 }
155
156 // Total malloc'd memory amount
157 size_t total() const;
158 // Total malloc'd memory used by arenas
159 size_t total_arena() const;
160
161 inline size_t thread_count() const {
162 MallocMemorySnapshot* s = const_cast<MallocMemorySnapshot*>(this);
163 return s->by_type(mtThreadStack)->malloc_count();
164 }
165
166 void copy_to(MallocMemorySnapshot* s) {
167 // Need to make sure that mtChunks don't get deallocated while the
168 // copy is going on, because their size is adjusted using this
169 // buffer in make_adjustment().
170 ThreadCritical tc;
171 s->_tracking_header = _tracking_header;
172 for (int index = 0; index < mt_number_of_types; index ++) {
173 s->_malloc[index] = _malloc[index];
174 }
175 }
176
177 // Make adjustment by subtracting chunks used by arenas
178 // from total chunks to get total free chunk size
179 void make_adjustment();
180 };
181
182 /*
183 * This class is for collecting malloc statistics at summary level
184 */
185 class MallocMemorySummary : AllStatic {
186 private:
187 // Reserve memory for placement of MallocMemorySnapshot object
188 static size_t _snapshot[CALC_OBJ_SIZE_IN_TYPE(MallocMemorySnapshot, size_t)];
189
190 public:
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