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/* Copyright (c) 2014-2015, Stanislaw Halik <sthalik@misaki.pl>
* Permission to use, copy, modify, and/or distribute this
* software for any purpose with or without fee is hereby granted,
* provided that the above copyright notice and this permission
* notice appear in all copies.
*/
#pragma once
#include "export.hpp"
#include "time.hpp"
#include <ctime>
#if defined (_WIN32)
# include <windows.h>
#elif defined(__MACH__)
# include <inttypes.h>
# include <mach/mach_time.h>
#endif
class OTR_COMPAT_EXPORT Timer final
{
struct timespec state;
long long conv_nsecs(const struct timespec& cur) const;
static void otr_clock_gettime(struct timespec* ts);
#ifdef _WIN32
static LARGE_INTEGER otr_get_clock_frequency();
#elif defined(__MACH__)
static mach_timebase_info_data_t otr_get_mach_frequency();
#endif
static void gettime(struct timespec* state);
using ns = time_units::ns;
public:
Timer();
void start();
template<typename t>
t elapsed() const
{
using namespace time_units;
return time_cast<t>(ns(elapsed_nsecs()));
}
template<typename t>
bool is_elapsed(const t& time_value)
{
using namespace time_units;
if (unlikely(elapsed<ns>() >= time_value))
{
start();
return true;
}
return false;
}
long long elapsed_nsecs() const;
double elapsed_usecs() const;
double elapsed_ms() const;
double elapsed_seconds() const;
};
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