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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
19#include "dbus/util.hpp"
20
Patrick Venture863b9242018-03-08 08:29:23 -080021#include <chrono>
22#include <cmath>
23#include <iostream>
24
Patrick Venture863b9242018-03-08 08:29:23 -080025ReadReturn DbusActiveRead::read(void)
26{
27 struct SensorProperties settings;
28 double value;
29
Patrick Venture563a3562018-10-30 09:31:26 -070030 _helper->getProperties(_bus, _service, _path, &settings);
Patrick Venture863b9242018-03-08 08:29:23 -080031
32 value = settings.value * pow(10, settings.scale);
33
34 /*
35 * Technically it might not be a value from now, but there's no timestamp
36 * on Sensor.Value yet.
37 */
Patrick Ventureda4a5dd2018-08-31 09:42:48 -070038 struct ReadReturn r = {value, std::chrono::high_resolution_clock::now()};
Patrick Venture863b9242018-03-08 08:29:23 -080039
40 return r;
41}