VirtualBox

source: vbox/trunk/src/VBox/NetworkServices/Dhcpd/Timestamp.h@ 84184

Last change on this file since 84184 was 82968, checked in by vboxsync, 5 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 3.7 KB
Line 
1/* $Id: Timestamp.h 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * DHCP server - timestamps
4 */
5
6/*
7 * Copyright (C) 2017-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18#ifndef VBOX_INCLUDED_SRC_Dhcpd_Timestamp_h
19#define VBOX_INCLUDED_SRC_Dhcpd_Timestamp_h
20#ifndef RT_WITHOUT_PRAGMA_ONCE
21# pragma once
22#endif
23
24#include <iprt/time.h>
25
26
27/**
28 * Wrapper around RTTIMESPEC.
29 *
30 * @note Originally wanting to use RTTimeNanoTS rather than RTTimeNow. The term
31 * "absolute" was used for when the RTTimeNanoTS() value was converted to
32 * something approximating unix epoch relative time with help of
33 * RTTimeNow(). Code was later changed to just wrap RTTIMESPEC and drop
34 * all usage of RTTimeNanoTS, ASSUMING that system time is stable.
35 */
36class Timestamp
37{
38 RTTIMESPEC m_TimeSpec;
39
40public:
41 Timestamp() RT_NOEXCEPT
42 {
43 RTTimeSpecSetNano(&m_TimeSpec, 0);
44 }
45
46 Timestamp(PCRTTIMESPEC a_pTimeSpec) RT_NOEXCEPT
47 {
48 m_TimeSpec = *a_pTimeSpec;
49 }
50
51 /** Get a timestamp initialized to current time. */
52 static Timestamp now() RT_NOEXCEPT
53 {
54 RTTIMESPEC Tmp;
55 return Timestamp(RTTimeNow(&Tmp));
56 }
57
58 /** Get a timestamp with the given value in seconds since unix epoch. */
59 static Timestamp absSeconds(int64_t secTimestamp) RT_NOEXCEPT
60 {
61 RTTIMESPEC Tmp;
62 return Timestamp(RTTimeSpecSetSeconds(&Tmp, secTimestamp));
63 }
64
65 Timestamp &addSeconds(int64_t cSecs) RT_NOEXCEPT
66 {
67 RTTimeSpecAddSeconds(&m_TimeSpec, cSecs);
68 return *this;
69 }
70
71 Timestamp &subSeconds(int64_t cSecs) RT_NOEXCEPT
72 {
73 RTTimeSpecSubSeconds(&m_TimeSpec, cSecs);
74 return *this;
75 }
76
77 RTTIMESPEC *getAbsTimeSpec(RTTIMESPEC *pTime) const RT_NOEXCEPT
78 {
79 *pTime = m_TimeSpec;
80 return pTime;
81 }
82
83 int64_t getAbsSeconds() const RT_NOEXCEPT
84 {
85 return RTTimeSpecGetSeconds(&m_TimeSpec);
86 }
87
88 /** Only for log formatting. */
89 size_t strFormatHelper(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput) const RT_NOEXCEPT;
90
91 int compare(const Timestamp &a_rRight) const RT_NOEXCEPT
92 {
93 return RTTimeSpecCompare(&m_TimeSpec, &a_rRight.m_TimeSpec);
94 }
95
96 friend bool operator<( const Timestamp &, const Timestamp &) RT_NOEXCEPT;
97 friend bool operator>( const Timestamp &, const Timestamp &) RT_NOEXCEPT;
98 friend bool operator==(const Timestamp &, const Timestamp &) RT_NOEXCEPT;
99 friend bool operator!=(const Timestamp &, const Timestamp &) RT_NOEXCEPT;
100 friend bool operator<=(const Timestamp &, const Timestamp &) RT_NOEXCEPT;
101 friend bool operator>=(const Timestamp &, const Timestamp &) RT_NOEXCEPT;
102};
103
104
105inline bool operator<( const Timestamp &l, const Timestamp &r) RT_NOEXCEPT { return l.compare(r) < 0; }
106inline bool operator>( const Timestamp &l, const Timestamp &r) RT_NOEXCEPT { return l.compare(r) > 0; }
107inline bool operator==(const Timestamp &l, const Timestamp &r) RT_NOEXCEPT { return l.compare(r) == 0; }
108inline bool operator!=(const Timestamp &l, const Timestamp &r) RT_NOEXCEPT { return l.compare(r) != 0; }
109inline bool operator<=(const Timestamp &l, const Timestamp &r) RT_NOEXCEPT { return l.compare(r) <= 0; }
110inline bool operator>=(const Timestamp &l, const Timestamp &r) RT_NOEXCEPT { return l.compare(r) >= 0; }
111
112#endif /* !VBOX_INCLUDED_SRC_Dhcpd_Timestamp_h */
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette