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Patrick Venture863b9242018-03-08 08:29:23 -08001/**
2 * Copyright 2017 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070017#include "dbusactiveread.hpp"
18
Patrick Ventureaadb30d2020-08-10 09:17:11 -070019#include "dbushelper_interface.hpp"
James Feist0c8223b2019-05-08 15:33:33 -070020#include "util.hpp"
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070021
Patrick Venture863b9242018-03-08 08:29:23 -080022#include <chrono>
23#include <cmath>
24#include <iostream>
25
Patrick Venturea0764872020-08-08 07:48:43 -070026namespace pid_control
27{
28
Patrick Venture863b9242018-03-08 08:29:23 -080029ReadReturn DbusActiveRead::read(void)
30{
31 struct SensorProperties settings;
32 double value;
33
Patrick Venture9b936922020-08-10 11:28:39 -070034 _helper->getProperties(_service, _path, &settings);
Patrick Venture863b9242018-03-08 08:29:23 -080035
36 value = settings.value * pow(10, settings.scale);
37
38 /*
39 * Technically it might not be a value from now, but there's no timestamp
40 * on Sensor.Value yet.
41 */
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070042 struct ReadReturn r = {value, std::chrono::high_resolution_clock::now()};
Patrick Venture863b9242018-03-08 08:29:23 -080043
44 return r;
45}
Patrick Venturea0764872020-08-08 07:48:43 -070046
47} // namespace pid_control