106 lines
2.1 KiB
C++
106 lines
2.1 KiB
C++
|
#pragma once
|
|||
|
|
#include <chrono>
|
|||
|
|
#include <iostream>
|
|||
|
|
#include <optional>
|
|||
|
|
#include <assert.h>
|
|||
|
|
|
|||
|
|
struct timer_result
|
|||
|
|
{
|
|||
|
|
double seconds = 0;
|
|||
|
|
double difftime = 0;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
struct Timer {
|
|||
|
|
enum State : u8
|
|||
|
|
{
|
|||
|
|
running = 0,
|
|||
|
|
paused = 1
|
|||
|
|
};
|
|||
|
|
State state = paused;
|
|||
|
|
|
|||
|
|
std::clock_t begin;
|
|||
|
|
std::clock_t elapsed = 0;
|
|||
|
|
std::optional<std::ostream*> out;
|
|||
|
|
std::optional<timer_result*> result;
|
|||
|
|
|
|||
|
|
Timer() : begin(std::clock()) {}
|
|||
|
|
Timer(std::ostream& o) : begin(std::clock()), out(&o) {}
|
|||
|
|
Timer(timer_result& r) : begin(std::clock()), result(&r) {}
|
|||
|
|
Timer(std::ostream& o, timer_result& r) : begin(std::clock()), out(&o), result(&r) {}
|
|||
|
|
Timer(State initial_state) : state(initial_state), begin(std::clock())
|
|||
|
|
{
|
|||
|
|
if (state == paused)
|
|||
|
|
begin = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Timer(std::ostream& o, State initial_state) : state(initial_state), begin(std::clock()), out(&o)
|
|||
|
|
{
|
|||
|
|
if (state == paused)
|
|||
|
|
begin = 0;
|
|||
|
|
}
|
|||
|
|
Timer(timer_result& r, State initial_state) : state(initial_state), begin(std::clock()), result(&r)
|
|||
|
|
{
|
|||
|
|
if (state == paused)
|
|||
|
|
begin = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Timer(std::ostream& o, timer_result& r, State initial_state) : state(initial_state), begin(std::clock()), out(&o), result(&r)
|
|||
|
|
{
|
|||
|
|
if (state == paused)
|
|||
|
|
begin = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void reset(State init_state) {
|
|||
|
|
if (state == paused)
|
|||
|
|
begin = 0;
|
|||
|
|
else
|
|||
|
|
begin = std::clock();
|
|||
|
|
elapsed = 0;
|
|||
|
|
state = init_state;
|
|||
|
|
lap();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void set_state(State new_state)
|
|||
|
|
{
|
|||
|
|
if (this->state == new_state)
|
|||
|
|
return;
|
|||
|
|
|
|||
|
|
if (new_state == running)
|
|||
|
|
{
|
|||
|
|
begin = std::clock();
|
|||
|
|
}
|
|||
|
|
else // pausing
|
|||
|
|
{
|
|||
|
|
assert(begin != 0);
|
|||
|
|
elapsed += std::clock() - begin;
|
|||
|
|
begin = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
lap();
|
|||
|
|
this->state = new_state;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void lap()
|
|||
|
|
{
|
|||
|
|
std::clock_t total_time = elapsed;
|
|||
|
|
if (state == running)
|
|||
|
|
{
|
|||
|
|
total_time += std::clock() - begin;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (result)
|
|||
|
|
{
|
|||
|
|
result.value()->seconds = static_cast<double>(total_time) / CLOCKS_PER_SEC;
|
|||
|
|
result.value()->difftime = static_cast<double>(total_time) / CLOCKS_PER_SEC;
|
|||
|
|
}
|
|||
|
|
if (out)
|
|||
|
|
{
|
|||
|
|
*out.value() << static_cast<double>(total_time) / CLOCKS_PER_SEC << " seconds.\n";
|
|||
|
|
*out.value() << "Total time = " << static_cast<double>(total_time) / CLOCKS_PER_SEC << std::endl;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
~Timer() {
|
|||
|
|
lap();
|
|||
|
|
}
|
|||
|
|
};
|