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###############################################################################
#
# 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.
#
###############################################################################
*/
#ifndef ARDUINOTIMER_H_
#define ARDUINOTIMER_H_
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;
};
#endif /* ARDUINOIMER_H_ */
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