A Discrete-Event Network Simulator
API
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system-wall-clock-timestamp.cc
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1/*
2 * Copyright (c) 2020 Lawrence Livermore National Laboratory
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 * Author: Peter D. Barnes, Jr. <pdbarnes@llnl.gov>
18 */
19
21
28namespace ns3
29{
30
32 : m_last(0),
33 m_diff(0)
34{
35 Stamp();
36}
37
38void
40{
41 std::time_t seconds = std::time(nullptr);
42 m_diff = seconds - m_last;
43 m_last = seconds;
44}
45
46std::string
48{
49 std::string now = std::ctime(&m_last);
50 now.resize(now.length() - 1); // trim trailing newline
51 return now;
52}
53
54std::time_t
56{
57 return m_last;
58}
59
60std::time_t
62{
63 return m_diff;
64}
65
66} // namespace ns3
std::time_t GetInterval() const
Get the last recorded interval.
std::time_t GetLast() const
Get the last recorded raw value.
std::string ToString() const
Get the last time stamp as a string.
std::time_t m_diff
Difference between the two previous time stamps.
void Stamp()
Record the current wall-clock time and delta since the last stamp().
std::time_t m_last
The last time stamp.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
ns3::SystemWallClockTimestamp declaration.