| /* | |
| ############################################################################### | |
| # | |
| # Temboo MQTT edge device library | |
| # | |
| # Copyright (C) 2017, Temboo Inc. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, | |
| # software distributed under the License is distributed on an | |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, | |
| # either express or implied. See the License for the specific | |
| # language governing permissions and limitations under the License. | |
| # | |
| ############################################################################### | |
| */ | |
| class ArduinoTimer { | |
| public: | |
| ArduinoTimer() { | |
| this->startTimeMillis = 0; | |
| this->durationMillis = 0; | |
| } | |
| ArduinoTimer(unsigned long durationMillis) { | |
| this->countdown_ms(durationMillis); | |
| } | |
| bool expired() { | |
| return left_ms() == 0; | |
| } | |
| void countdown_ms(unsigned long durationMillis) { | |
| this->startTimeMillis = millis(); | |
| this->durationMillis = durationMillis; | |
| } | |
| void countdown(int durationSeconds) { | |
| countdown_ms((unsigned long)durationSeconds * 1000L); | |
| } | |
| unsigned long left_ms() { | |
| unsigned long elapsedMillis = millis() - this->startTimeMillis; | |
| return elapsedMillis < this->durationMillis ? (this->durationMillis - elapsedMillis) : 0; | |
| } | |
| private: | |
| unsigned long startTimeMillis; | |
| unsigned long durationMillis; | |
| }; | |