/*
   Copyright (c)  2014 IOnU Security Inc. All rights reserved
   Created February 2014 by Kendrick Webster
 
   Time.h - header for time utilities
*/
#pragma once
#include <stdint.h>
#include <chrono>

namespace ionu { namespace time {

struct CStopWatch
{
#define SC std::chrono
    CStopWatch() : m_t0(SC::steady_clock::now()) {}
    void Reset(void) {m_t0 = SC::steady_clock::now();}
    uint64_t u64_Microseconds(void) {return SC::duration_cast<SC::microseconds>(SC::steady_clock::now() - m_t0).count();}
    unsigned int Microseconds(void) {return static_cast<unsigned int>(u64_Microseconds());}
    uint64_t u64_Milliseconds(void) {return SC::duration_cast<SC::milliseconds>(SC::steady_clock::now() - m_t0).count();}
    unsigned int Milliseconds(void) {return static_cast<unsigned int>(u64_Milliseconds());}
    void DecreaseMilliseconds(unsigned int n) {m_t0 += SC::milliseconds(n);}
    void DecreaseMicroseconds(unsigned int n) {m_t0 += SC::microseconds(n);}

protected:
    SC::steady_clock::time_point m_t0;
#undef SC
};

struct CTimer
{
#define SC std::chrono
    CTimer() : m_t(SC::steady_clock::time_point::max()) {}
    void SetSeconds(unsigned int n) {m_t = SC::steady_clock::now() + SC::seconds(n);}
    void SetMilliseconds(unsigned int n) {m_t = SC::steady_clock::now() + SC::milliseconds(n);}
    void SetMicroseconds(unsigned int n) {m_t = SC::steady_clock::now() + SC::microseconds(n);}
    
    bool IsExpired(void) {return m_t <= SC::steady_clock::now();}
    void Stop(void) {m_t = SC::steady_clock::time_point::max();}

protected:
    SC::steady_clock::time_point m_t;
#undef SC
};

}}