mirror of
https://github.com/matrix-construct/construct
synced 2024-11-04 12:58:53 +01:00
117 lines
2.6 KiB
C++
117 lines
2.6 KiB
C++
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk
|
|
//
|
|
// 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 is present in all copies.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
// IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_UTIL_TIMER_H
|
|
|
|
namespace ircd::util
|
|
{
|
|
struct timer;
|
|
}
|
|
|
|
struct ircd::util::timer
|
|
{
|
|
IRCD_OVERLOAD(nostart)
|
|
using clock = std::chrono::steady_clock;
|
|
|
|
nanoseconds accumulator;
|
|
clock::time_point start;
|
|
|
|
bool stopped() const;
|
|
template<class duration = std::chrono::seconds> duration get() const;
|
|
template<class duration = std::chrono::seconds> duration at() const;
|
|
void cont();
|
|
void stop();
|
|
|
|
timer(const std::function<void ()> &);
|
|
timer(nostart_t);
|
|
timer();
|
|
};
|
|
|
|
|
|
/// Default construction will start the timer.
|
|
inline
|
|
ircd::util::timer::timer()
|
|
:accumulator{0ns}
|
|
,start{clock::now()}
|
|
{
|
|
}
|
|
|
|
/// timer(timer::nostart)
|
|
inline
|
|
ircd::util::timer::timer(nostart_t)
|
|
:accumulator{0ns}
|
|
,start{clock::time_point::min()}
|
|
{
|
|
}
|
|
|
|
inline
|
|
ircd::util::timer::timer(const std::function<void ()> &func)
|
|
:timer{}
|
|
{
|
|
func();
|
|
stop();
|
|
}
|
|
|
|
inline void
|
|
ircd::util::timer::stop()
|
|
{
|
|
if(stopped())
|
|
return;
|
|
|
|
const auto now(clock::now());
|
|
accumulator += std::chrono::duration_cast<decltype(accumulator)>(now - start);
|
|
start = clock::time_point::min();
|
|
}
|
|
|
|
inline void
|
|
ircd::util::timer::cont()
|
|
{
|
|
if(!stopped())
|
|
{
|
|
const auto now(clock::now());
|
|
accumulator += std::chrono::duration_cast<decltype(accumulator)>(now - start);
|
|
}
|
|
|
|
start = clock::now();
|
|
}
|
|
|
|
template<class duration>
|
|
duration
|
|
ircd::util::timer::at()
|
|
const
|
|
{
|
|
const auto now(clock::now());
|
|
return duration_cast<duration>(now - start);
|
|
}
|
|
|
|
template<class duration>
|
|
duration
|
|
ircd::util::timer::get()
|
|
const
|
|
{
|
|
return std::chrono::duration_cast<duration>(accumulator);
|
|
}
|
|
|
|
inline bool
|
|
ircd::util::timer::stopped()
|
|
const
|
|
{
|
|
return start == clock::time_point::min();
|
|
}
|