116 lines
3.2 KiB
C++
116 lines
3.2 KiB
C++
/*
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* Copyright (C) 2019 Max Regan
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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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* 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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#pragma once
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#include "ReturnCode.h"
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#include "Time.h"
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#include "SystemTime.h"
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namespace BSP {
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namespace Schedule {
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enum class ScheduleType {
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AT_TIME = 0,
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NEVER = 1,
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};
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class NextTime final {
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public:
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NextTime() :
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m_type(ScheduleType::NEVER),
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m_time(0)
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{}
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static inline NextTime in(time_t offset) {
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time_t time = 0;
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/* If this call fails, we likely haven't initialized the timer
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* yet, so just treat offset as the time- hopefully the system
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* timer will be initialzed soon
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*/
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BSP::SystemTimer::get_time(time);
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time += offset;
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return {ScheduleType::AT_TIME, time };
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}
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static inline NextTime never() {
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return { ScheduleType::NEVER, 0 };
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}
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static inline NextTime asap() {
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return { ScheduleType::AT_TIME, 0 };
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}
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static inline NextTime at(time_t time) {
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return { ScheduleType::AT_TIME, time };
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}
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inline ScheduleType get_type() const { return m_type; }
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inline time_t get_time() const { return m_time; }
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inline bool operator<(const NextTime other) const {
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if (m_type < other.m_type) {
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return true;
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} else if (m_type == other.m_type) {
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switch(m_type){
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case ScheduleType::AT_TIME:
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return m_time < other.m_time;
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case ScheduleType::NEVER:
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return false;
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}
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return false;
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} else {
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return false;
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}
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}
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inline bool operator==(const NextTime other) const {
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if (m_type != other.m_type) {
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return false;
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} else {
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switch(m_type){
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case ScheduleType::AT_TIME:
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return m_time == other.m_time;
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case ScheduleType::NEVER:
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return true;
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}
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return false;
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}
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}
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private:
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NextTime(ScheduleType type, time_t time) :
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m_type(type),
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m_time(time)
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{}
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ScheduleType m_type;
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time_t m_time;
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};
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class Task {
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public:
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virtual NextTime execute() = 0;
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};
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} // namespace Schedule
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} // namespace BSP
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