102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
/*
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* The MIT License (MIT)
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*
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* ESP8266 FreeRTOS Firmware
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* Copyright (c) 2015 Michael Jacobsen (github.com/mikejac)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* https://github.com/SuperHouse/esp-open-rtos
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*
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*/
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#ifndef ESP_OPEN_RTOS_TIMER_HPP
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#define ESP_OPEN_RTOS_TIMER_HPP
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#include "FreeRTOS.h"
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#include "task.h"
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namespace esp_open_rtos {
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namespace timer {
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#define __millis() (xTaskGetTickCount() * portTICK_RATE_MS)
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/******************************************************************************************************************
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* countdown_t
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*
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*/
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class countdown_t
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{
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public:
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/**
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*
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*/
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countdown_t()
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{
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interval_end_ms = 0L;
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}
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/**
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*
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* @param ms
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*/
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countdown_t(int ms)
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{
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countdown_ms(ms);
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}
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/**
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*
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* @return
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*/
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bool expired()
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{
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return (interval_end_ms > 0L) && (__millis() >= interval_end_ms);
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}
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/**
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*
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* @param ms
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*/
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void countdown_ms(unsigned long ms)
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{
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interval_end_ms = __millis() + ms;
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}
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/**
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*
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* @param seconds
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*/
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void countdown(int seconds)
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{
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countdown_ms((unsigned long)seconds * 1000L);
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}
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/**
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*
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* @return
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*/
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int left_ms()
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{
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return interval_end_ms - __millis();
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}
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private:
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portTickType interval_end_ms;
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};
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} // namespace timer {
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} // namespace esp_open_rtos {
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#endif
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