timemeasurement.cpp
2.51 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
/* ****************************************************************************
* Copyright 2019 Open Systems Development BV *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
* DEALINGS IN THE SOFTWARE. *
* ***************************************************************************/
#include "timemeasurement.h"
using namespace osdev::components::mqtt::measurement;
TimeMeasurement::TimeMeasurement(const std::string& id, const TimeMeasurementCallback& cb, bool measureOnDestruction)
: m_id(id)
, m_start(std::chrono::steady_clock::now())
, m_last(m_start)
, m_callback(cb)
, m_measureOnDestruction(measureOnDestruction)
{
}
TimeMeasurement::~TimeMeasurement()
{
if (m_measureOnDestruction) {
this->measure();
}
}
void TimeMeasurement::set()
{
m_last = std::chrono::steady_clock::now();
}
void TimeMeasurement::measure()
{
auto now = std::chrono::steady_clock::now();
auto sinceLast = std::chrono::duration_cast<std::chrono::microseconds>(now - m_last);
auto sinceStart = std::chrono::duration_cast<std::chrono::microseconds>(now - m_start);
m_last = now;
m_callback(m_id, m_start, sinceStart, sinceLast);
}