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Some changes to Singleton implementation

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This commit is contained in:
Smirnov Kirill 2016-02-17 18:18:06 +03:00 committed by Sergey Yagovtsev
parent 1f80b87816
commit 561f79e8e6
2 changed files with 20 additions and 26 deletions
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42
src/profile_manager.cpp
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@ -3,28 +3,25 @@
using namespace profiler;
ProfileManager* ProfileManager::m_profileManager = nullptr;
extern "C"{
void PROFILER_API registerMark(Mark* _mark)
{
ProfileManager::instance()->registerMark(_mark);
}
void PROFILER_API registerMark(Mark* _mark)
{
ProfileManager::instance().registerMark(_mark);
}
void PROFILER_API endBlock()
{
ProfileManager::instance()->endBlock();
}
void PROFILER_API setEnabled(bool isEnable)
{
ProfileManager::instance()->setEnabled(isEnable);
}
void PROFILER_API endBlock()
{
ProfileManager::instance().endBlock();
}
void PROFILER_API setEnabled(bool isEnable)
{
ProfileManager::instance().setEnabled(isEnable);
}
void PROFILER_API beginBlock(Block* _block)
{
ProfileManager::instance()->beginBlock(_block);
ProfileManager::instance().beginBlock(_block);
}
}
@ -34,15 +31,12 @@ ProfileManager::ProfileManager()
}
ProfileManager* ProfileManager::instance()
ProfileManager& ProfileManager::instance()
{
if (!m_profileManager)
{
//TODO: thread safety for profiler::instance
//if(!m_profiler)//see paper by Scott Mayers and Alecsandrescu: http://www.aristeia.com/Papers/DDJ_Jul_Aug_2004_revised.pdf
m_profileManager = new ProfileManager();
}
return m_profileManager;
///C++11 makes possible to create Singleton without any warry about thread-safeness
///http://preshing.com/20130930/double-checked-locking-is-fixed-in-cpp11/
static ProfileManager m_profileManager;
return m_profileManager;
}
void ProfileManager::registerMark(profiler::Mark* _mark)

4
src/profile_manager.h
View File

@ -26,11 +26,11 @@ class ProfileManager
ProfileManager();
ProfileManager(const ProfileManager& p) = delete;
ProfileManager& operator=(const ProfileManager&) = delete;
static ProfileManager* m_profileManager;
static ProfileManager m_profileManager;
bool m_isEnabled = false;
public:
static ProfileManager* instance();
static ProfileManager& instance();
void registerMark(profiler::Mark* _mark);
void beginBlock(profiler::Block* _block);