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comparison src/share/vm/services/mallocTracker.hpp @ 20553:417e3b8d04c5

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8059100: SIGSEGV VirtualMemoryTracker::remove_released_region Summary: Disallow increasing native memory tracking level Reviewed-by: hseigel, ctornqvi, gtriantafill
author coleenp
date Fri, 10 Oct 2014 19:36:12 +0000
parents dd3939fe8424
children 787c9c28311f
comparison
equal deleted inserted replaced
20547:fffbcc20bf61 20553:417e3b8d04c5
49 MemoryCounter() : _count(0), _size(0) { 49 MemoryCounter() : _count(0), _size(0) {
50 DEBUG_ONLY(_peak_count = 0;) 50 DEBUG_ONLY(_peak_count = 0;)
51 DEBUG_ONLY(_peak_size = 0;) 51 DEBUG_ONLY(_peak_size = 0;)
52 } 52 }
53 53
54 // Reset counters
55 void reset() {
56 _size = 0;
57 _count = 0;
58 DEBUG_ONLY(_peak_size = 0;)
59 DEBUG_ONLY(_peak_count = 0;)
60 }
61
62 inline void allocate(size_t sz) { 54 inline void allocate(size_t sz) {
63 Atomic::add(1, (volatile MemoryCounterType*)&_count); 55 Atomic::add(1, (volatile MemoryCounterType*)&_count);
64 if (sz > 0) { 56 if (sz > 0) {
65 Atomic::add((MemoryCounterType)sz, (volatile MemoryCounterType*)&_size); 57 Atomic::add((MemoryCounterType)sz, (volatile MemoryCounterType*)&_size);
66 DEBUG_ONLY(_peak_size = MAX2(_peak_size, _size)); 58 DEBUG_ONLY(_peak_size = MAX2(_peak_size, _size));
122 114
123 inline void record_arena_size_change(long sz) { 115 inline void record_arena_size_change(long sz) {
124 _arena.resize(sz); 116 _arena.resize(sz);
125 } 117 }
126 118
127 void reset() {
128 _malloc.reset();
129 _arena.reset();
130 }
131
132 inline size_t malloc_size() const { return _malloc.size(); } 119 inline size_t malloc_size() const { return _malloc.size(); }
133 inline size_t malloc_count() const { return _malloc.count();} 120 inline size_t malloc_count() const { return _malloc.count();}
134 inline size_t arena_size() const { return _arena.size(); } 121 inline size_t arena_size() const { return _arena.size(); }
135 inline size_t arena_count() const { return _arena.count(); } 122 inline size_t arena_count() const { return _arena.count(); }
136 123
173 160
174 inline size_t thread_count() const { 161 inline size_t thread_count() const {
175 MallocMemorySnapshot* s = const_cast<MallocMemorySnapshot*>(this); 162 MallocMemorySnapshot* s = const_cast<MallocMemorySnapshot*>(this);
176 return s->by_type(mtThreadStack)->malloc_count(); 163 return s->by_type(mtThreadStack)->malloc_count();
177 } 164 }
178
179 void reset();
180 165
181 void copy_to(MallocMemorySnapshot* s) { 166 void copy_to(MallocMemorySnapshot* s) {
182 s->_tracking_header = _tracking_header; 167 s->_tracking_header = _tracking_header;
183 for (int index = 0; index < mt_number_of_types; index ++) { 168 for (int index = 0; index < mt_number_of_types; index ++) {
184 s->_malloc[index] = _malloc[index]; 169 s->_malloc[index] = _malloc[index];
236 } 221 }
237 222
238 // The memory used by malloc tracking headers 223 // The memory used by malloc tracking headers
239 static inline size_t tracking_overhead() { 224 static inline size_t tracking_overhead() {
240 return as_snapshot()->malloc_overhead()->size(); 225 return as_snapshot()->malloc_overhead()->size();
241 }
242
243 // Reset all counters to zero
244 static void reset() {
245 as_snapshot()->reset();
246 } 226 }
247 227
248 static MallocMemorySnapshot* as_snapshot() { 228 static MallocMemorySnapshot* as_snapshot() {
249 return (MallocMemorySnapshot*)_snapshot; 229 return (MallocMemorySnapshot*)_snapshot;
250 } 230 }