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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 15 matching lines...) Expand all Loading... |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ | 29 */ |
| 30 | 30 |
| 31 #ifndef InstanceCounters_h | 31 #ifndef InstanceCounters_h |
| 32 #define InstanceCounters_h | 32 #define InstanceCounters_h |
| 33 | 33 |
| 34 #include "core/CoreExport.h" | 34 #include "core/CoreExport.h" |
| 35 #include "wtf/Allocator.h" | 35 #include "wtf/Allocator.h" |
| 36 #include "wtf/Atomics.h" |
| 36 | 37 |
| 37 #if ENABLE(ASSERT) | 38 #if ENABLE(ASSERT) |
| 38 #endif | 39 #endif |
| 39 | 40 |
| 40 namespace blink { | 41 namespace blink { |
| 41 | 42 |
| 42 class InstanceCounters { | 43 class InstanceCounters { |
| 43 STATIC_ONLY(InstanceCounters); | 44 STATIC_ONLY(InstanceCounters); |
| 44 public: | 45 public: |
| 45 enum CounterType { | 46 enum CounterType { |
| 46 ActiveDOMObjectCounter, | 47 ActiveDOMObjectCounter, |
| 47 AudioHandlerCounter, | 48 AudioHandlerCounter, |
| 48 DocumentCounter, | 49 DocumentCounter, |
| 49 FrameCounter, | 50 FrameCounter, |
| 50 JSEventListenerCounter, | 51 JSEventListenerCounter, |
| 51 LayoutObjectCounter, | 52 LayoutObjectCounter, |
| 52 NodeCounter, | 53 NodeCounter, |
| 53 ResourceCounter, | 54 ResourceCounter, |
| 54 ScriptPromiseCounter, | 55 ScriptPromiseCounter, |
| 55 V8PerContextDataCounter, | 56 V8PerContextDataCounter, |
| 56 | 57 |
| 57 // This value must be the last. | 58 // This value must be the last. |
| 58 CounterTypeLength, | 59 CounterTypeLength, |
| 59 }; | 60 }; |
| 60 | 61 |
| 61 static inline void incrementCounter(CounterType type) | 62 static inline void incrementCounter(CounterType type) |
| 62 { | 63 { |
| 63 ASSERT(isMainThread()); | 64 atomicIncrement(&s_counters[type]); |
| 64 ++s_counters[type]; | |
| 65 } | 65 } |
| 66 | 66 |
| 67 static inline void decrementCounter(CounterType type) | 67 static inline void decrementCounter(CounterType type) |
| 68 { | 68 { |
| 69 ASSERT(isMainThread()); | 69 atomicDecrement(&s_counters[type]); |
| 70 --s_counters[type]; | |
| 71 } | 70 } |
| 72 | 71 |
| 73 CORE_EXPORT static int counterValue(CounterType); | 72 CORE_EXPORT static int counterValue(CounterType); |
| 74 | 73 |
| 75 private: | 74 private: |
| 76 CORE_EXPORT static int s_counters[CounterTypeLength]; | 75 CORE_EXPORT static int s_counters[CounterTypeLength]; |
| 77 }; | 76 }; |
| 78 | 77 |
| 79 } // namespace blink | 78 } // namespace blink |
| 80 | 79 |
| 81 #endif // !defined(InstanceCounters_h) | 80 #endif // !defined(InstanceCounters_h) |
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