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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Matthias P. Braendli
*
* 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.
*/
#pragma once
#include <stdlib.h>
#include <stdint.h>
struct timer_t {
uint32_t seconds_ = 0; /* Timer in seconds */
uint8_t ticks_ = 0; /* Timer in 100ms steps */
timer_t() {}
timer_t(uint32_t seconds, uint8_t ticks) : seconds_(seconds), ticks_(ticks) {}
timer_t get_atomic_copy() const {
cli();
const auto t = *this;
sei();
return t;
}
uint32_t get_seconds_atomic() const {
cli();
uint32_t s = seconds_;
sei();
return s;
}
uint8_t get_ticks_atomic() const {
/* Returning an uint8_t is atomic */
return ticks_;
}
bool operator>(const timer_t& rhs) const {
return (seconds_ > rhs.seconds_) or
(seconds_ == rhs.seconds_ and ticks_ > rhs.ticks_);
}
void normalise() {
while (ticks_ >= 10) {
seconds_++;
ticks_ -= 10;
}
}
timer_t operator+(const timer_t& rhs) const {
timer_t t;
t.seconds_ = seconds_ + rhs.seconds_;
t.ticks_ = ticks_ + rhs.ticks_;
t.normalise();
return t;
}
timer_t operator+(uint8_t ticks) const {
timer_t t = timer_t(0, ticks);
return *this + t;
}
void operator+=(const timer_t& inc) {
seconds_ += inc.seconds_;
ticks_ += inc.ticks_;
normalise();
}
void operator+=(uint8_t ticks) {
*this += timer_t(0, ticks);
}
static constexpr int ms_to_ticks(int ms) { return ms / 100; }
};
|
