Statistics.h

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#pragma once
 
#include <Common/primitive_type.h>
 
#include <atomic>
 
namespace ph
{
 
class Statistics final
{
public:
    class Record final
    {
    public:
        uint32 totalWork;
        uint32 workDone;
        uint32 numSamplesTaken;
        uint32 numMsElapsed;
 
        inline Record() : totalWork(0), workDone(0), numSamplesTaken(0), numMsElapsed(0) {}
    };
 
public:
    inline Statistics() :
        m_totalWork(0), m_workDone(0), m_numSamplesTaken(0), m_numMsElapsed(0)
    {}
 
    inline Statistics(const Statistics& other) :
        m_totalWork      (other.m_totalWork.load()), 
        m_workDone       (other.m_workDone.load()), 
        m_numSamplesTaken(other.m_numSamplesTaken.load()), 
        m_numMsElapsed   (other.m_numMsElapsed.load())
    {}
 
    inline void setTotalWork(const uint32 totalWork)
    {
        m_totalWork = totalWork;
    }
 
    inline void setWorkDone(const uint32 workDone)
    {
        m_workDone = workDone;
    }
 
    inline void setNumSamplesTaken(const uint32 numSamples)
    {
        m_numSamplesTaken = numSamples;
    }
 
    inline void setNumMsElapsed(const uint32 numMsElapsed)
    {
        m_numMsElapsed = numMsElapsed;
    }
 
    inline void incrementWorkDone()
    {
        ++m_workDone;
    }
 
    inline Record record() const
    {
        Record record;
        record.totalWork       = m_totalWork;
        record.workDone        = m_workDone;
        record.numSamplesTaken = m_numSamplesTaken;
        record.numMsElapsed    = m_numMsElapsed;
 
        return record;
    }
 
    inline Statistics& operator = (const Statistics& rhs)
    {
        m_totalWork       = rhs.m_totalWork.load();
        m_workDone        = rhs.m_workDone.load();
        m_numSamplesTaken = rhs.m_numSamplesTaken.load();
        m_numMsElapsed    = rhs.m_numMsElapsed.load();
 
        return *this;
    }
 
private:
    std::atomic_uint32_t m_totalWork;
    std::atomic_uint32_t m_workDone;
    std::atomic_uint32_t m_numSamplesTaken;
    std::atomic_uint32_t m_numMsElapsed;
};
 
}// end namespace ph