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
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QSOCKETNOTIFIER_H
#define QSOCKETNOTIFIER_H
#include <QtCore/qobject.h>
QT_BEGIN_NAMESPACE
class QSocketDescriptor;
class QSocketNotifierPrivate;
class Q_CORE_EXPORT QSocketNotifier : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QSocketNotifier)
public:
enum Type { Read, Write, Exception };
explicit QSocketNotifier(Type, QObject *parent = nullptr);
QSocketNotifier(qintptr socket, Type, QObject *parent = nullptr);
~QSocketNotifier();
void setSocket(qintptr socket);
qintptr socket() const;
Type type() const;
bool isValid() const;
bool isEnabled() const;
public Q_SLOTS:
void setEnabled(bool);
Q_SIGNALS:
#if defined(Q_MOC_RUN)
// Add default arguments during Q_MOC_RUN which makes moc generate "signals" which takes less
// parameters, but we won't actually allow emitting without all 3. This lets users use the
// string-based connect without specifying QSocketNotifier::Type as one of the parameters.
void activated(QSocketDescriptor socket, QSocketNotifier::Type activationEvent = Read,
QPrivateSignal = {});
#else
void activated(QSocketDescriptor socket, QSocketNotifier::Type activationEvent, QPrivateSignal);
#endif
// ### Qt7: consider removing it.
// The old signal is compiled internally, but hidden outside of this class.
// This means the PMF-based connect(..) will automatically, on recompile, pick up the new
// version while the old-style connect(..) can query the metaobject system for this version.
#if defined(Q_MOC_RUN) || defined(BUILDING_QSOCKETNOTIFIER) || defined(Q_QDOC)
QT_MOC_COMPAT void activated(int socket, QPrivateSignal);
#endif
protected:
bool event(QEvent *) override;
private:
Q_DISABLE_COPY(QSocketNotifier)
};
class QSocketDescriptor
{
public:
#if defined(Q_OS_WIN) || defined(Q_QDOC)
using DescriptorType = Qt::HANDLE;
#define Q_DECL_CONSTEXPR_NOT_WIN
#else
using DescriptorType = int;
#define Q_DECL_CONSTEXPR_NOT_WIN Q_DECL_CONSTEXPR
#endif
Q_DECL_CONSTEXPR_NOT_WIN Q_IMPLICIT
QSocketDescriptor(DescriptorType descriptor = DescriptorType(-1)) noexcept : sockfd(descriptor)
{
}
#if defined(Q_OS_WIN) || defined(Q_QDOC)
Q_IMPLICIT QSocketDescriptor(qintptr desc) noexcept : sockfd(DescriptorType(desc)) {}
Q_IMPLICIT operator qintptr() const noexcept { return qintptr(sockfd); }
Q_DECL_CONSTEXPR Qt::HANDLE winHandle() const noexcept { return sockfd; }
#endif
Q_DECL_CONSTEXPR operator DescriptorType() const noexcept { return sockfd; }
Q_DECL_CONSTEXPR_NOT_WIN bool isValid() const noexcept { return *this != QSocketDescriptor(); }
private:
friend Q_DECL_CONSTEXPR_NOT_WIN bool comparesEqual(const QSocketDescriptor &lhs,
const QSocketDescriptor &rhs) noexcept
{
return lhs.sockfd == rhs.sockfd;
}
#if defined(Q_OS_WIN) || defined(Q_QDOC)
Q_DECLARE_EQUALITY_COMPARABLE(QSocketDescriptor)
#else
Q_DECLARE_EQUALITY_COMPARABLE_LITERAL_TYPE(QSocketDescriptor)
#endif
#undef Q_DECL_CONSTEXPR_NOT_WIN
DescriptorType sockfd;
};
QT_END_NAMESPACE
QT_DECL_METATYPE_EXTERN_TAGGED(QSocketNotifier::Type, QSocketNotifier_Type, Q_CORE_EXPORT)
QT_DECL_METATYPE_EXTERN(QSocketDescriptor, Q_CORE_EXPORT)
#endif // QSOCKETNOTIFIER_H
|