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
94
95
96
97
98
99
100
|
/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2015 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef D_TIMER_A2_H
#define D_TIMER_A2_H
#include "common.h"
#include <chrono>
#include "a2time.h"
#include "a2functional.h"
namespace aria2 {
class Timer {
public:
using Clock = std::chrono::steady_clock;
// The time value is initialized so that it represents the time at which
// this object was created.
Timer();
Timer(const Timer& time) = default;
Timer(Timer&& time) = default;
template <typename duration>
constexpr explicit Timer(const duration& t) : tp_(t)
{
}
explicit Timer(const Clock::time_point& tp);
Timer& operator=(Timer&& timer) = default;
Timer& operator=(const Timer& timer) = default;
bool operator<(const Timer& timer) const { return tp_ < timer.tp_; }
bool operator>(const Timer& timer) const { return timer < *this; }
bool operator<=(const Timer& timer) const { return !(timer < *this); }
bool operator>=(const Timer& timer) const { return !(*this < timer); }
void reset();
template <typename duration> void reset(const duration& t)
{
tp_ = Clock::time_point(t);
}
Clock::duration difference() const;
Clock::duration difference(const Timer& timer) const;
// Returns true if this object's time value is zero.
bool isZero() const;
template <typename duration> void advance(const duration& t) { tp_ += t; }
template <typename duration> void sub(const duration& t) { tp_ -= t; }
const Clock::time_point& getTime() const { return tp_; }
static Timer zero() { return Timer(0_s); }
private:
Clock::time_point tp_;
};
} // namespace aria2
#endif // D_TIMER_A2_H
|
