summaryrefslogtreecommitdiffstats
path: root/src/corelib/plugin/quuid.h
blob: 91925426842ad14c05b7e9ab2b97bd1bcc4c01b5 (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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore 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 QUUID_H
#define QUUID_H

#include <QtCore/qstring.h>

#if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
#ifndef GUID_DEFINED
#define GUID_DEFINED
typedef struct _GUID
{
    ulong   Data1;
    ushort  Data2;
    ushort  Data3;
    uchar   Data4[8];
} GUID, *REFGUID, *LPGUID;
#endif
#endif

#if defined(Q_OS_DARWIN) || defined(Q_CLANG_QDOC)
Q_FORWARD_DECLARE_CF_TYPE(CFUUID);
Q_FORWARD_DECLARE_OBJC_CLASS(NSUUID);
#endif

QT_BEGIN_NAMESPACE


class Q_CORE_EXPORT QUuid
{
    QUuid(Qt::Initialization) {}
public:
    enum Variant {
        VarUnknown        =-1,
        NCS                = 0, // 0 - -
        DCE                = 2, // 1 0 -
        Microsoft        = 6, // 1 1 0
        Reserved        = 7  // 1 1 1
    };

    enum Version {
        VerUnknown        =-1,
        Time                = 1, // 0 0 0 1
        EmbeddedPOSIX        = 2, // 0 0 1 0
        Md5                 = 3, // 0 0 1 1
        Name = Md5,
        Random                = 4,  // 0 1 0 0
        Sha1                 = 5 // 0 1 0 1
    };

    enum StringFormat {
        WithBraces      = 0,
        WithoutBraces   = 1,
        Id128           = 3
    };

    constexpr QUuid() noexcept : data1(0), data2(0), data3(0), data4{0,0,0,0,0,0,0,0} {}

    constexpr QUuid(uint l, ushort w1, ushort w2, uchar b1, uchar b2, uchar b3,
                           uchar b4, uchar b5, uchar b6, uchar b7, uchar b8) noexcept
        : data1(l), data2(w1), data3(w2), data4{b1, b2, b3, b4, b5, b6, b7, b8} {}

    explicit QUuid(const QString &);
    static QUuid fromString(QStringView string) noexcept;
    static QUuid fromString(QLatin1String string) noexcept;
    explicit QUuid(const char *);
    QString toString(StringFormat mode = WithBraces) const;
    explicit QUuid(const QByteArray &);
    QByteArray toByteArray(StringFormat mode = WithBraces) const;
    QByteArray toRfc4122() const;
#if QT_REMOVED_SINCE(6, 3)
    static QUuid fromRfc4122(const QByteArray &);
#endif
    static QUuid fromRfc4122(QByteArrayView) noexcept;
    bool isNull() const noexcept;

    constexpr bool operator==(const QUuid &orig) const noexcept
    {
        if (data1 != orig.data1 || data2 != orig.data2 ||
             data3 != orig.data3)
            return false;

        for (uint i = 0; i < 8; i++)
            if (data4[i] != orig.data4[i])
                return false;

        return true;
    }

    constexpr bool operator!=(const QUuid &orig) const noexcept
    {
        return !(*this == orig);
    }

    bool operator<(const QUuid &other) const noexcept;
    bool operator>(const QUuid &other) const noexcept;

#if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
    // On Windows we have a type GUID that is used by the platform API, so we
    // provide convenience operators to cast from and to this type.
    constexpr QUuid(const GUID &guid) noexcept
        : data1(guid.Data1), data2(guid.Data2), data3(guid.Data3),
          data4{guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
                guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]} {}

    constexpr QUuid &operator=(const GUID &guid) noexcept
    {
        *this = QUuid(guid);
        return *this;
    }

    constexpr operator GUID() const noexcept
    {
        GUID guid = { data1, data2, data3, { data4[0], data4[1], data4[2], data4[3], data4[4], data4[5], data4[6], data4[7] } };
        return guid;
    }

    constexpr bool operator==(const GUID &guid) const noexcept
    {
        return *this == QUuid(guid);
    }

    constexpr bool operator!=(const GUID &guid) const noexcept
    {
        return !(*this == guid);
    }
#endif
    static QUuid createUuid();
#ifndef QT_BOOTSTRAPPED
    static QUuid createUuidV3(const QUuid &ns, const QByteArray &baseData);
#endif
    static QUuid createUuidV5(const QUuid &ns, const QByteArray &baseData);
#ifndef QT_BOOTSTRAPPED
    static inline QUuid createUuidV3(const QUuid &ns, const QString &baseData)
    {
        return QUuid::createUuidV3(ns, baseData.toUtf8());
    }
#endif

    static inline QUuid createUuidV5(const QUuid &ns, const QString &baseData)
    {
        return QUuid::createUuidV5(ns, baseData.toUtf8());
    }

    QUuid::Variant variant() const noexcept;
    QUuid::Version version() const noexcept;

#if defined(Q_OS_DARWIN) || defined(Q_CLANG_QDOC)
    static QUuid fromCFUUID(CFUUIDRef uuid);
    CFUUIDRef toCFUUID() const Q_DECL_CF_RETURNS_RETAINED;
    static QUuid fromNSUUID(const NSUUID *uuid);
    NSUUID *toNSUUID() const Q_DECL_NS_RETURNS_AUTORELEASED;
#endif

    uint    data1;
    ushort  data2;
    ushort  data3;
    uchar   data4[8];
};

Q_DECLARE_TYPEINFO(QUuid, Q_PRIMITIVE_TYPE);

#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QUuid &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QUuid &);
#endif

#ifndef QT_NO_DEBUG_STREAM
Q_CORE_EXPORT QDebug operator<<(QDebug, const QUuid &);
#endif

Q_CORE_EXPORT size_t qHash(const QUuid &uuid, size_t seed = 0) noexcept;

inline bool operator<=(const QUuid &lhs, const QUuid &rhs) noexcept
{ return !(rhs < lhs); }
inline bool operator>=(const QUuid &lhs, const QUuid &rhs) noexcept
{ return !(lhs < rhs); }

QT_END_NAMESPACE

#endif // QUUID_H