blob: 4f09b9d047b5c51db0bc1ee281a208da0d8b3227 (
plain)
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
// Copyright (C) 2021 The Qt Company Ltd.
// Copyright (C) 2019 Luxoft Sweden AB
// Copyright (C) 2018 Pelagicore AG
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#pragma once
#include <QtCore/QByteArray>
#include <QtCore/QPair>
#include <QtCore/QElapsedTimer>
#include <QtCore/QObject>
#include <QtAppManCommon/global.h>
#include <memory>
#if defined(Q_OS_LINUX)
# include <QtAppManMonitor/sysfsreader.h>
QT_FORWARD_DECLARE_CLASS(QSocketNotifier)
#endif
QT_BEGIN_NAMESPACE_AM
class CpuReader
{
public:
CpuReader();
qreal readLoadValue();
private:
qint64 m_lastIdle = 0;
qint64 m_lastTotal = 0;
qreal m_load = 1;
#if defined(Q_OS_LINUX)
static std::unique_ptr<SysFsReader> s_sysFs;
#endif
Q_DISABLE_COPY_MOVE(CpuReader)
};
class GpuVendor {
public:
enum Vendor {
Undefined = 0, // didn't try to determine the vendor yet
Unsupported,
Intel,
Nvidia
};
static Vendor get();
private:
static void fetch();
static Vendor s_vendor;
};
class GpuTool;
class GpuReader
{
public:
GpuReader();
void setActive(bool enabled);
bool isActive() const;
qreal readLoadValue();
private:
#if defined(Q_OS_LINUX)
static GpuTool *s_gpuToolProcess;
#endif
Q_DISABLE_COPY_MOVE(GpuReader)
};
class MemoryReader
{
public:
MemoryReader();
#if defined(Q_OS_LINUX)
explicit MemoryReader(const QString &groupPath);
quint64 groupLimit();
#endif
quint64 totalValue() const;
quint64 readUsedValue() const;
private:
static quint64 s_totalValue;
#if defined(Q_OS_LINUX)
std::unique_ptr<SysFsReader> m_sysFs;
const QString m_groupPath;
#elif defined(Q_OS_MACOS) || defined(Q_OS_IOS)
static int s_pageSize;
#endif
Q_DISABLE_COPY_MOVE(MemoryReader)
};
class IoReader
{
public:
IoReader(const char *device);
~IoReader();
qreal readLoadValue();
private:
#if defined(Q_OS_LINUX)
QElapsedTimer m_lastCheck;
qint64 m_lastIoTime = 0;
qreal m_load = 1;
std::unique_ptr<SysFsReader> m_sysFs;
#endif
Q_DISABLE_COPY_MOVE(IoReader)
};
class MemoryThreshold : public QObject
{
Q_OBJECT
public:
MemoryThreshold(const QList<qreal> &thresholds);
~MemoryThreshold() override;
QList<qreal> thresholdPercentages() const;
bool isEnabled() const;
bool setEnabled(bool enabled);
#if defined(Q_OS_LINUX)
bool setEnabled(bool enabled, const QString &groupPath, MemoryReader *reader);
#endif
signals:
void thresholdTriggered();
private:
bool m_initialized = false;
bool m_enabled = false;
QList<qreal> m_thresholds;
#if defined(Q_OS_LINUX)
private slots:
void readEventFd();
private:
int m_eventFd = -1;
int m_controlFd = -1;
int m_usageFd = -1;
QSocketNotifier *m_notifier = nullptr;
#endif
};
class MemoryWatcher : public QObject
{
Q_OBJECT
public:
MemoryWatcher(QObject *parent);
void setThresholds(qreal warning, qreal critical);
bool startWatching(const QString &groupPath = QString());
void checkMemoryConsumption();
signals:
void memoryLow();
void memoryCritical();
private:
qreal m_warning = 75.0;
qreal m_critical = 90.0;
quint64 m_memLimit = 0;
bool hasMemoryLowWarning = false;
bool hasMemoryCriticalWarning = false;
std::unique_ptr<MemoryThreshold> m_threshold;
std::unique_ptr<MemoryReader> m_reader;
};
#if defined(Q_OS_LINUX)
// Parses the file /proc/$PID/cgroup, returning a map groupName->path
// eg: map["memory"] == "/user.slice"
QMap<QByteArray, QByteArray> fetchCGroupProcessInfo(qint64 pid);
// Where the filesystem root directory is located. This exists solely to enable testing.
// In production it's naturally "/"
extern QString g_systemRootDir;
#endif
QT_END_NAMESPACE_AM
// We mean it. Dummy comment since syncqt needs this also for completely private Qt modules.
|
