third_party/WebKit/Source/wtf/InstanceCounter.h

   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) || ENABLE(DETAILED_MEMORY_INFRA)
  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
  50 template<typename T>
  51 inline void incrementInstanceCount(T* p)
  52 {
  53     incrementInstanceCount(extractNameFunction<T>(), p);
  54 }
  55
  56 template<typename T>
  57 inline void decrementInstanceCount(T* p)
  58 {
  59     decrementInstanceCount(extractNameFunction<T>(), p);
  60 }
  61
  62 #endif // ENABLE(INSTANCE_COUNTER) || ENABLE(GC_PROFILING)
  63
  64 } // namespace WTF
  65
  66 #endif