timer.h

/*****************************************************/
/* lean Time                    (c) Tobias Zirr 2011 */
/*****************************************************/

#ifndef LEAN_TIME_TIMER
#define LEAN_TIME_TIMER

#include "../lean.h"
#include <ctime>

namespace lean
{
namespace time
{

class timer
{
private:
    time_t m_time;

public:
    LEAN_INLINE timer()
        : m_time(::time(nullptr)) { }

    LEAN_INLINE void tick() { ::time(&m_time); }

    LEAN_INLINE double seconds() const { return ::difftime(::time(nullptr), m_time); }
    LEAN_INLINE double milliseconds() const { return seconds() * 1000; }
};

// Old C standard definition
#ifndef CLOCKS_PER_SEC
    #define CLOCKS_PER_SEC CLK_TCK
#endif

class clocktimer
{
private:
    clock_t m_time;

public:
    LEAN_INLINE clocktimer()
        : m_time(::clock()) { }

    LEAN_INLINE void tick() { m_time = ::clock(); }

    LEAN_INLINE double seconds() const { return (double) (::clock() - m_time) * (1.0 / CLOCKS_PER_SEC); }
    LEAN_INLINE double milliseconds() const { return (double) (::clock() - m_time) * (1000.0 / CLOCKS_PER_SEC); }
};

} // namespace

using time::timer;
using time::clocktimer;

} // namespace

#endif