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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include <chrono>
#include <thread>
class Clock {
public:
static uint64_t ticks(uint32_t frequency = Clock::frequency) {
return (Clock::nanos() - Clock::startup.count()) / (1000000000ULL / frequency);
}
static uint64_t nanosToTicks(uint64_t ns, uint32_t frequency = Clock::frequency) {
return ns / (1000000000ULL / frequency);
}
// Time acceleration compensated
static uint64_t ticksToNanos(uint64_t tick, uint32_t frequency = Clock::frequency) {
return (tick * (1000000000ULL / frequency)) / Clock::time_multiplier;
}
static void setFrequency(uint32_t freq) {
Clock::frequency = freq;
}
// Time Acceleration compensated
static uint64_t nanos() {
auto now = std::chrono::high_resolution_clock::now().time_since_epoch();
return (now.count() - Clock::startup.count()) * Clock::time_multiplier;
}
static uint64_t micros() {
return Clock::nanos() / 1000;
}
static uint64_t millis() {
return Clock::micros() / 1000;
}
static double seconds() {
return Clock::nanos() / 1000000000.0;
}
static void delayCycles(uint64_t cycles) {
std::this_thread::sleep_for(std::chrono::nanoseconds( (1000000000L / frequency) * cycles) / Clock::time_multiplier );
}
static void delayMicros(uint64_t micros) {
std::this_thread::sleep_for(std::chrono::microseconds( micros ) / Clock::time_multiplier);
}
static void delayMillis(uint64_t millis) {
std::this_thread::sleep_for(std::chrono::milliseconds( millis ) / Clock::time_multiplier);
}
static void delaySeconds(double secs) {
std::this_thread::sleep_for(std::chrono::duration<double, std::milli>(secs * 1000) / Clock::time_multiplier);
}
// Will reduce timer resolution increasing likelihood of overflows
static void setTimeMultiplier(double tm) {
Clock::time_multiplier = tm;
}
private:
static std::chrono::nanoseconds startup;
static uint32_t frequency;
static double time_multiplier;
};
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