summaryrefslogtreecommitdiffstats
path: root/src/network/socket/qabstractsocketengine_p.h
blob: 8eebb06a4d109803a16150b9ccfba188213bffdf (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
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2016 Intel Corporation.
** 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 QABSTRACTSOCKETENGINE_P_H
#define QABSTRACTSOCKETENGINE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtNetwork/private/qtnetworkglobal_p.h>
#include "QtNetwork/qhostaddress.h"
#include "QtNetwork/qabstractsocket.h"
#include "private/qobject_p.h"
#include "private/qnetworkdatagram_p.h"

QT_BEGIN_NAMESPACE

class QAuthenticator;
class QAbstractSocketEnginePrivate;
#ifndef QT_NO_NETWORKINTERFACE
class QNetworkInterface;
#endif
class QNetworkProxy;

class QAbstractSocketEngineReceiver {
public:
    virtual ~QAbstractSocketEngineReceiver(){}
    virtual void readNotification()= 0;
    virtual void writeNotification()= 0;
    virtual void closeNotification()= 0;
    virtual void exceptionNotification()= 0;
    virtual void connectionNotification()= 0;
#ifndef QT_NO_NETWORKPROXY
    virtual void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator)= 0;
#endif
};

class Q_AUTOTEST_EXPORT QAbstractSocketEngine : public QObject
{
    Q_OBJECT
public:

    static QAbstractSocketEngine *createSocketEngine(QAbstractSocket::SocketType socketType, const QNetworkProxy &, QObject *parent);
    static QAbstractSocketEngine *createSocketEngine(qintptr socketDescriptor, QObject *parent);

    QAbstractSocketEngine(QObject *parent = 0);

    enum SocketOption {
        NonBlockingSocketOption,
        BroadcastSocketOption,
        ReceiveBufferSocketOption,
        SendBufferSocketOption,
        AddressReusable,
        BindExclusively,
        ReceiveOutOfBandData,
        LowDelayOption,
        KeepAliveOption,
        MulticastTtlOption,
        MulticastLoopbackOption,
        TypeOfServiceOption,
        ReceivePacketInformation,
        ReceiveHopLimit,
        MaxStreamsSocketOption,
        PathMtuInformation
    };

    enum PacketHeaderOption {
        WantNone = 0,
        WantDatagramSender = 0x01,
        WantDatagramDestination = 0x02,
        WantDatagramHopLimit = 0x04,
        WantStreamNumber = 0x08,
        WantEndOfRecord = 0x10,

        WantAll = 0xff
    };
    Q_DECLARE_FLAGS(PacketHeaderOptions, PacketHeaderOption)

    virtual bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) = 0;

    virtual bool initialize(qintptr socketDescriptor, QAbstractSocket::SocketState socketState = QAbstractSocket::ConnectedState) = 0;

    virtual qintptr socketDescriptor() const = 0;

    virtual bool isValid() const = 0;

    virtual bool connectToHost(const QHostAddress &address, quint16 port) = 0;
    virtual bool connectToHostByName(const QString &name, quint16 port) = 0;
    virtual bool bind(const QHostAddress &address, quint16 port) = 0;
    virtual bool listen() = 0;
    virtual int accept() = 0;
    virtual void close() = 0;

    virtual qint64 bytesAvailable() const = 0;

    virtual qint64 read(char *data, qint64 maxlen) = 0;
    virtual qint64 write(const char *data, qint64 len) = 0;

#ifndef QT_NO_UDPSOCKET
#ifndef QT_NO_NETWORKINTERFACE
    virtual bool joinMulticastGroup(const QHostAddress &groupAddress,
                                    const QNetworkInterface &iface) = 0;
    virtual bool leaveMulticastGroup(const QHostAddress &groupAddress,
                                     const QNetworkInterface &iface) = 0;
    virtual QNetworkInterface multicastInterface() const = 0;
    virtual bool setMulticastInterface(const QNetworkInterface &iface) = 0;
#endif // QT_NO_NETWORKINTERFACE

    virtual bool hasPendingDatagrams() const = 0;
    virtual qint64 pendingDatagramSize() const = 0;
#endif // QT_NO_UDPSOCKET

    virtual qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader *header = 0,
                                PacketHeaderOptions = WantNone) = 0;
    virtual qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &header) = 0;
    virtual qint64 bytesToWrite() const = 0;

    virtual int option(SocketOption option) const = 0;
    virtual bool setOption(SocketOption option, int value) = 0;

    virtual bool waitForRead(int msecs = 30000, bool *timedOut = 0) = 0;
    virtual bool waitForWrite(int msecs = 30000, bool *timedOut = 0) = 0;
    virtual bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                            bool checkRead, bool checkWrite,
                            int msecs = 30000, bool *timedOut = 0) = 0;

    QAbstractSocket::SocketError error() const;
    QString errorString() const;
    QAbstractSocket::SocketState state() const;
    QAbstractSocket::SocketType socketType() const;
    QAbstractSocket::NetworkLayerProtocol protocol() const;

    QHostAddress localAddress() const;
    quint16 localPort() const;
    QHostAddress peerAddress() const;
    quint16 peerPort() const;
    int inboundStreamCount() const;
    int outboundStreamCount() const;

    virtual bool isReadNotificationEnabled() const = 0;
    virtual void setReadNotificationEnabled(bool enable) = 0;
    virtual bool isWriteNotificationEnabled() const = 0;
    virtual void setWriteNotificationEnabled(bool enable) = 0;
    virtual bool isExceptionNotificationEnabled() const = 0;
    virtual void setExceptionNotificationEnabled(bool enable) = 0;

public Q_SLOTS:
    void readNotification();
    void writeNotification();
    void closeNotification();
    void exceptionNotification();
    void connectionNotification();
#ifndef QT_NO_NETWORKPROXY
    void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator);
#endif

public:
    void setReceiver(QAbstractSocketEngineReceiver *receiver);
protected:
    QAbstractSocketEngine(QAbstractSocketEnginePrivate &dd, QObject* parent = 0);

    void setError(QAbstractSocket::SocketError error, const QString &errorString) const;
    void setState(QAbstractSocket::SocketState state);
    void setSocketType(QAbstractSocket::SocketType socketType);
    void setProtocol(QAbstractSocket::NetworkLayerProtocol protocol);
    void setLocalAddress(const QHostAddress &address);
    void setLocalPort(quint16 port);
    void setPeerAddress(const QHostAddress &address);
    void setPeerPort(quint16 port);

private:
    Q_DECLARE_PRIVATE(QAbstractSocketEngine)
    Q_DISABLE_COPY_MOVE(QAbstractSocketEngine)
};

class QAbstractSocketEnginePrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QAbstractSocketEngine)
public:
    QAbstractSocketEnginePrivate();

    mutable QAbstractSocket::SocketError socketError;
    mutable bool hasSetSocketError;
    mutable QString socketErrorString;
    QAbstractSocket::SocketState socketState;
    QAbstractSocket::SocketType socketType;
    QAbstractSocket::NetworkLayerProtocol socketProtocol;
    QHostAddress localAddress;
    quint16 localPort;
    QHostAddress peerAddress;
    quint16 peerPort;
    int inboundStreamCount;
    int outboundStreamCount;
    QAbstractSocketEngineReceiver *receiver;
};


class Q_AUTOTEST_EXPORT QSocketEngineHandler
{
protected:
    QSocketEngineHandler();
    virtual ~QSocketEngineHandler();
    virtual QAbstractSocketEngine *createSocketEngine(QAbstractSocket::SocketType socketType,
                                                      const QNetworkProxy &, QObject *parent) = 0;
    virtual QAbstractSocketEngine *createSocketEngine(qintptr socketDescriptor, QObject *parent) = 0;

private:
    friend class QAbstractSocketEngine;
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QAbstractSocketEngine::PacketHeaderOptions)

QT_END_NAMESPACE

#endif // QABSTRACTSOCKETENGINE_P_H