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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef InstanceCounter_h
     27 #define InstanceCounter_h
     28 
     29 #include "wtf/Compiler.h"
     30 #include "wtf/WTFExport.h"
     31 
     32 namespace WTF {
     33 
     34 class String;
     35 WTF_EXPORT String dumpRefCountedInstanceCounts();
     36 
     37 #if ENABLE(INSTANCE_COUNTER) || ENABLE(GC_PROFILING)
     38 WTF_EXPORT void incrementInstanceCount(const char* extractNameFunctionName, void* ptr);
     39 WTF_EXPORT void decrementInstanceCount(const char* extractNameFunctionName, void* ptr);
     40 
     41 WTF_EXPORT String extractTypeNameFromFunctionName(const char* funcName);
     42 
     43 template<typename T>
     44 inline const char* extractNameFunction()
     45 {
     46     return WTF_PRETTY_FUNCTION;
     47 }
     48 
     49 template<typename T>
     50 inline void incrementInstanceCount(T* p)
     51 {
     52     incrementInstanceCount(extractNameFunction<T>(), p);
     53 }
     54 
     55 template<typename T>
     56 inline void decrementInstanceCount(T* p)
     57 {
     58     decrementInstanceCount(extractNameFunction<T>(), p);
     59 }
     60 
     61 #endif // ENABLE(INSTANCE_COUNTER) || ENABLE(GC_PROFILING)
     62 
     63 } // namespace WTF
     64 
     65 #endif
     66