util/src/network/socket/qtcpsocket.cpp
author eckhart.koppen@nokia.com
Wed, 31 Mar 2010 11:06:36 +0300
changeset 7 f7bc934e204c
permissions -rw-r--r--
5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
7
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     1
/****************************************************************************
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     2
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     3
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     4
** All rights reserved.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     5
** Contact: Nokia Corporation (qt-info@nokia.com)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     6
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     7
** This file is part of the QtNetwork module of the Qt Toolkit.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     8
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
     9
** $QT_BEGIN_LICENSE:LGPL$
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    10
** No Commercial Usage
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    11
** This file contains pre-release code and may not be distributed.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    12
** You may use this file in accordance with the terms and conditions
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    13
** contained in the Technology Preview License Agreement accompanying
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    14
** this package.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    15
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    16
** GNU Lesser General Public License Usage
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    17
** Alternatively, this file may be used under the terms of the GNU Lesser
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    18
** General Public License version 2.1 as published by the Free Software
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    19
** Foundation and appearing in the file LICENSE.LGPL included in the
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    20
** packaging of this file.  Please review the following information to
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    21
** ensure the GNU Lesser General Public License version 2.1 requirements
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    22
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    23
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    24
** In addition, as a special exception, Nokia gives you certain additional
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    25
** rights.  These rights are described in the Nokia Qt LGPL Exception
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    26
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    27
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    28
** If you have questions regarding the use of this file, please contact
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    29
** Nokia at qt-info@nokia.com.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    30
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    31
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    32
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    33
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    34
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    35
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    36
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    37
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    38
** $QT_END_LICENSE$
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    39
**
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    40
****************************************************************************/
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    41
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    42
//#define QTCPSOCKET_DEBUG
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    43
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    44
/*! 
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    45
    \class QTcpSocket
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    46
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    47
    \brief The QTcpSocket class provides a TCP socket.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    48
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    49
    \reentrant
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    50
    \ingroup network
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    51
    \inmodule QtNetwork
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    52
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    53
    TCP (Transmission Control Protocol) is a reliable,
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    54
    stream-oriented, connection-oriented transport protocol. It is
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    55
    especially well suited for continuous transmission of data.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    56
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    57
    QTcpSocket is a convenience subclass of QAbstractSocket that
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    58
    allows you to establish a TCP connection and transfer streams of
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    59
    data. See the QAbstractSocket documentation for details.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    60
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    61
    \bold{Note:} TCP sockets cannot be opened in QIODevice::Unbuffered mode.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    62
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    63
    \sa QTcpServer, QUdpSocket, QFtp, QNetworkAccessManager,
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    64
    {Fortune Server Example}, {Fortune Client Example},
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    65
    {Threaded Fortune Server Example}, {Blocking Fortune Client Example},
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    66
    {Loopback Example}, {Torrent Example}
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    67
*/
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    68
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    69
#include "qlist.h"
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    70
#include "qtcpsocket_p.h"
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    71
#include "qtcpsocket.h"
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    72
#include "qhostaddress.h"
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    73
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    74
QT_BEGIN_NAMESPACE
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    75
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    76
/*!
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    77
    Creates a QTcpSocket object in state \c UnconnectedState.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    78
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    79
    \a parent is passed on to the QObject constructor.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    80
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    81
    \sa socketType()
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    82
*/
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    83
QTcpSocket::QTcpSocket(QObject *parent)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    84
    : QAbstractSocket(TcpSocket, *new QTcpSocketPrivate, parent)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    85
{
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    86
#if defined(QTCPSOCKET_DEBUG)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    87
    qDebug("QTcpSocket::QTcpSocket()");
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    88
#endif
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    89
    d_func()->isBuffered = true;
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    90
}
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    91
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    92
/*!
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    93
    Destroys the socket, closing the connection if necessary.
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    94
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    95
    \sa close()
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    96
*/
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    97
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    98
QTcpSocket::~QTcpSocket()
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
    99
{
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   100
#if defined(QTCPSOCKET_DEBUG)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   101
    qDebug("QTcpSocket::~QTcpSocket()");
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   102
#endif
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   103
}
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   104
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   105
/*!
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   106
    \internal
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   107
*/
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   108
QTcpSocket::QTcpSocket(QTcpSocketPrivate &dd, QObject *parent)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   109
    : QAbstractSocket(TcpSocket, dd, parent)
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   110
{
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   111
    d_func()->isBuffered = true;
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   112
}
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   113
f7bc934e204c 5cabc75a39ca2f064f70b40f72ed93c74c4dc19b
eckhart.koppen@nokia.com
parents:
diff changeset
   114
QT_END_NAMESPACE