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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QHOSTINFO_H
#define QHOSTINFO_H
#include <QtNetwork/qtnetworkglobal.h>
#include <QtCore/qlist.h>
#include <QtCore/qscopedpointer.h>
#include <QtNetwork/qhostaddress.h>
QT_BEGIN_NAMESPACE
class QObject;
class QHostInfoPrivate;
class Q_NETWORK_EXPORT QHostInfo
{
public:
enum HostInfoError {
NoError,
HostNotFound,
UnknownError
};
explicit QHostInfo(int lookupId = -1);
QHostInfo(const QHostInfo &d);
QHostInfo &operator=(const QHostInfo &d);
QHostInfo &operator=(QHostInfo &&other) Q_DECL_NOTHROW { swap(other); return *this; }
~QHostInfo();
void swap(QHostInfo &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
QString hostName() const;
void setHostName(const QString &name);
QList<QHostAddress> addresses() const;
void setAddresses(const QList<QHostAddress> &addresses);
HostInfoError error() const;
void setError(HostInfoError error);
QString errorString() const;
void setErrorString(const QString &errorString);
void setLookupId(int id);
int lookupId() const;
static int lookupHost(const QString &name, QObject *receiver, const char *member);
static void abortHostLookup(int lookupId);
static QHostInfo fromName(const QString &name);
static QString localHostName();
static QString localDomainName();
#ifdef Q_CLANG_QDOC
template<typename Functor>
static int lookupHost(const QString &name, Functor functor);
template<typename Functor>
static int lookupHost(const QString &name, const QObject *context, Functor functor);
#else
// lookupHost to a QObject slot
template <typename Func>
static inline int lookupHost(const QString &name,
const typename QtPrivate::FunctionPointer<Func>::Object *receiver,
Func slot)
{
typedef QtPrivate::FunctionPointer<Func> SlotType;
typedef QtPrivate::FunctionPointer<void (*)(QHostInfo)> SignalType;
Q_STATIC_ASSERT_X(int(SignalType::ArgumentCount) >= int(SlotType::ArgumentCount),
"The slot requires more arguments than the signal provides.");
Q_STATIC_ASSERT_X((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments,
typename SlotType::Arguments>::value),
"Signal and slot arguments are not compatible.");
Q_STATIC_ASSERT_X((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType,
typename SignalType::ReturnType>::value),
"Return type of the slot is not compatible "
"with the return type of the signal.");
auto slotObj = new QtPrivate::QSlotObject<Func, typename SlotType::Arguments, void>(slot);
return lookupHostImpl(name, receiver, slotObj);
}
// lookupHost to a callable (without context)
template <typename Func>
static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction &&
!std::is_same<const char *, Func>::value, int>::type
lookupHost(const QString &name, Func slot)
{
return lookupHost(name, nullptr, std::move(slot));
}
// lookupHost to a functor or function pointer (with context)
template <typename Func1>
static inline typename std::enable_if<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
!std::is_same<const char*, Func1>::value, int>::type
lookupHost(const QString &name, QObject *context, Func1 slot)
{
typedef QtPrivate::FunctionPointer<Func1> SlotType;
Q_STATIC_ASSERT_X(int(SlotType::ArgumentCount) <= 1,
"The slot must not require more than one argument");
auto slotObj = new QtPrivate::QFunctorSlotObject<Func1, 1,
typename QtPrivate::List<QHostInfo>,
void>(std::move(slot));
return lookupHostImpl(name, context, slotObj);
}
#endif // Q_QDOC
private:
QScopedPointer<QHostInfoPrivate> d;
static int lookupHostImpl(const QString &name,
const QObject *receiver,
QtPrivate::QSlotObjectBase *slotObj);
};
Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QHostInfo)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QHostInfo)
#endif // QHOSTINFO_H
|
