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
|
/*
relativeclock.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2013 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Mathias Hasselmann <mathias.hasselmann@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "relativeclock.h"
#ifdef Q_OS_LINUX
#include <QCoreApplication>
#include <QFileInfo>
#endif // Q_OS_LINUX
#include <QDateTime>
using namespace GammaRay;
static qint64 appStartTime()
{
#ifdef Q_OS_LINUX
// On Linux the application start time can be read by procfs.
const QString &self = QStringLiteral("/proc/%1").arg(qApp->applicationPid());
return QFileInfo(self).lastModified().toMSecsSinceEpoch();
#else // !Q_OS_LINUX
// On other platforms this is a rough estimation if called early.
return QDateTime::currentMSecsSinceEpoch();
#endif // !Q_OS_LINUX
}
const RelativeClock *RelativeClock::sinceAppStart()
{
static const RelativeClock clock(appStartTime());
return &clock;
}
qint64 RelativeClock::currentMSecsSinceEpoch()
{
return QDateTime::currentMSecsSinceEpoch();
}
|
