1// Copyright (C) 2016 The Qt Company Ltd.
2// Copyright (C) 2016 Intel Corporation.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
4
5#ifndef QABSTRACTSOCKETENGINE_P_H
6#define QABSTRACTSOCKETENGINE_P_H
7
8//
9// W A R N I N G
10// -------------
11//
12// This file is not part of the Qt API. It exists purely as an
13// implementation detail. This header file may change from version to
14// version without notice, or even be removed.
15//
16// We mean it.
17//
18
19#include <QtNetwork/private/qtnetworkglobal_p.h>
20#include "QtNetwork/qhostaddress.h"
21#include "QtNetwork/qabstractsocket.h"
22#include <QtCore/qdeadlinetimer.h>
23#include "private/qnetworkdatagram_p.h"
24#include "private/qobject_p.h"
25
26QT_BEGIN_NAMESPACE
27
28class QAuthenticator;
29class QAbstractSocketEnginePrivate;
30#ifndef QT_NO_NETWORKINTERFACE
31class QNetworkInterface;
32#endif
33class QNetworkProxy;
34
35class QAbstractSocketEngineReceiver {
36public:
37 virtual ~QAbstractSocketEngineReceiver(){}
38 virtual void readNotification()= 0;
39 virtual void writeNotification()= 0;
40 virtual void closeNotification()= 0;
41 virtual void exceptionNotification()= 0;
42 virtual void connectionNotification()= 0;
43#ifndef QT_NO_NETWORKPROXY
44 virtual void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator)= 0;
45#endif
46};
47
48static constexpr std::chrono::seconds DefaultTimeout{30};
49
50class Q_AUTOTEST_EXPORT QAbstractSocketEngine : public QObject
51{
52 Q_OBJECT
53 Q_MOC_INCLUDE(<QtNetwork/qauthenticator.h>)
54public:
55
56 static QAbstractSocketEngine *createSocketEngine(QAbstractSocket::SocketType socketType, const QNetworkProxy &, QObject *parent);
57 static QAbstractSocketEngine *createSocketEngine(qintptr socketDescriptor, QObject *parent);
58
59 QAbstractSocketEngine(QObject *parent = nullptr);
60
61 enum SocketOption {
62 NonBlockingSocketOption,
63 BroadcastSocketOption,
64 ReceiveBufferSocketOption,
65 SendBufferSocketOption,
66 AddressReusable,
67 BindExclusively,
68 ReceiveOutOfBandData,
69 LowDelayOption,
70 KeepAliveOption,
71 MulticastTtlOption,
72 MulticastLoopbackOption,
73 TypeOfServiceOption,
74 ReceivePacketInformation,
75 ReceiveHopLimit,
76 MaxStreamsSocketOption,
77 PathMtuInformation
78 };
79
80 enum PacketHeaderOption {
81 WantNone = 0,
82 WantDatagramSender = 0x01,
83 WantDatagramDestination = 0x02,
84 WantDatagramHopLimit = 0x04,
85 WantStreamNumber = 0x08,
86 WantEndOfRecord = 0x10,
87
88 WantAll = 0xff
89 };
90 Q_DECLARE_FLAGS(PacketHeaderOptions, PacketHeaderOption)
91
92 virtual bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) = 0;
93
94 virtual bool initialize(qintptr socketDescriptor, QAbstractSocket::SocketState socketState = QAbstractSocket::ConnectedState) = 0;
95
96 virtual qintptr socketDescriptor() const = 0;
97
98 virtual bool isValid() const = 0;
99
100 virtual bool connectToHost(const QHostAddress &address, quint16 port) = 0;
101 virtual bool connectToHostByName(const QString &name, quint16 port) = 0;
102 virtual bool bind(const QHostAddress &address, quint16 port) = 0;
103 virtual bool listen(int backlog) = 0;
104 virtual qintptr accept() = 0;
105 virtual void close() = 0;
106
107 virtual qint64 bytesAvailable() const = 0;
108
109 virtual qint64 read(char *data, qint64 maxlen) = 0;
110 virtual qint64 write(const char *data, qint64 len) = 0;
111
112#ifndef QT_NO_UDPSOCKET
113#ifndef QT_NO_NETWORKINTERFACE
114 virtual bool joinMulticastGroup(const QHostAddress &groupAddress,
115 const QNetworkInterface &iface) = 0;
116 virtual bool leaveMulticastGroup(const QHostAddress &groupAddress,
117 const QNetworkInterface &iface) = 0;
118 virtual QNetworkInterface multicastInterface() const = 0;
119 virtual bool setMulticastInterface(const QNetworkInterface &iface) = 0;
120#endif // QT_NO_NETWORKINTERFACE
121
122 virtual bool hasPendingDatagrams() const = 0;
123 virtual qint64 pendingDatagramSize() const = 0;
124#endif // QT_NO_UDPSOCKET
125
126 virtual qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader *header = nullptr,
127 PacketHeaderOptions = WantNone) = 0;
128 virtual qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &header) = 0;
129 virtual qint64 bytesToWrite() const = 0;
130
131 virtual int option(SocketOption option) const = 0;
132 virtual bool setOption(SocketOption option, int value) = 0;
133
134 virtual bool waitForRead(QDeadlineTimer deadline = QDeadlineTimer{DefaultTimeout},
135 bool *timedOut = nullptr) = 0;
136 virtual bool waitForWrite(QDeadlineTimer deadline = QDeadlineTimer{DefaultTimeout},
137 bool *timedOut = nullptr) = 0;
138 virtual bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
139 bool checkRead, bool checkWrite,
140 QDeadlineTimer deadline = QDeadlineTimer{DefaultTimeout},
141 bool *timedOut = nullptr) = 0;
142
143 QAbstractSocket::SocketError error() const;
144 QString errorString() const;
145 QAbstractSocket::SocketState state() const;
146 QAbstractSocket::SocketType socketType() const;
147 QAbstractSocket::NetworkLayerProtocol protocol() const;
148
149 QHostAddress localAddress() const;
150 quint16 localPort() const;
151 QHostAddress peerAddress() const;
152 quint16 peerPort() const;
153 int inboundStreamCount() const;
154 int outboundStreamCount() const;
155
156 virtual bool isReadNotificationEnabled() const = 0;
157 virtual void setReadNotificationEnabled(bool enable) = 0;
158 virtual bool isWriteNotificationEnabled() const = 0;
159 virtual void setWriteNotificationEnabled(bool enable) = 0;
160 virtual bool isExceptionNotificationEnabled() const = 0;
161 virtual void setExceptionNotificationEnabled(bool enable) = 0;
162
163public Q_SLOTS:
164 void readNotification();
165 void writeNotification();
166 void closeNotification();
167 void exceptionNotification();
168 void connectionNotification();
169#ifndef QT_NO_NETWORKPROXY
170 void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator);
171#endif
172
173public:
174 void setReceiver(QAbstractSocketEngineReceiver *receiver);
175protected:
176 QAbstractSocketEngine(QAbstractSocketEnginePrivate &dd, QObject* parent = nullptr);
177
178 void setError(QAbstractSocket::SocketError error, const QString &errorString) const;
179 void setState(QAbstractSocket::SocketState state);
180 void setSocketType(QAbstractSocket::SocketType socketType);
181 void setProtocol(QAbstractSocket::NetworkLayerProtocol protocol);
182 void setLocalAddress(const QHostAddress &address);
183 void setLocalPort(quint16 port);
184 void setPeerAddress(const QHostAddress &address);
185 void setPeerPort(quint16 port);
186
187private:
188 Q_DECLARE_PRIVATE(QAbstractSocketEngine)
189 Q_DISABLE_COPY_MOVE(QAbstractSocketEngine)
190};
191
192class QAbstractSocketEnginePrivate : public QObjectPrivate
193{
194 Q_DECLARE_PUBLIC(QAbstractSocketEngine)
195public:
196 QAbstractSocketEnginePrivate();
197
198 mutable QAbstractSocket::SocketError socketError;
199 mutable bool hasSetSocketError;
200 mutable QString socketErrorString;
201 QAbstractSocket::SocketState socketState;
202 QAbstractSocket::SocketType socketType;
203 QAbstractSocket::NetworkLayerProtocol socketProtocol;
204 QHostAddress localAddress;
205 quint16 localPort;
206 QHostAddress peerAddress;
207 quint16 peerPort;
208 int inboundStreamCount;
209 int outboundStreamCount;
210 QAbstractSocketEngineReceiver *receiver;
211};
212
213
214class Q_AUTOTEST_EXPORT QSocketEngineHandler
215{
216protected:
217 QSocketEngineHandler();
218 virtual ~QSocketEngineHandler();
219 virtual QAbstractSocketEngine *createSocketEngine(QAbstractSocket::SocketType socketType,
220 const QNetworkProxy &, QObject *parent) = 0;
221 virtual QAbstractSocketEngine *createSocketEngine(qintptr socketDescriptor, QObject *parent) = 0;
222
223private:
224 friend class QAbstractSocketEngine;
225};
226
227Q_DECLARE_OPERATORS_FOR_FLAGS(QAbstractSocketEngine::PacketHeaderOptions)
228
229QT_END_NAMESPACE
230
231#endif // QABSTRACTSOCKETENGINE_P_H
232

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source code of qtbase/src/network/socket/qabstractsocketengine_p.h