/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QUNIXSOCKET_P_H+
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#define QUNIXSOCKET_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include <QtNetwork/qabstractsocket.h>+
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#include <QtCore/qiodevice.h>+
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#include <QtCore/qlist.h>+
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#include <QtCore/qshareddata.h>+
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+
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extern "C" {+
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#include <sys/types.h>+
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};+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QUnixSocketRights;+
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class QUnixSocketRightsPrivate;+
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class QUnixSocketPrivate;+
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class QUnixSocketMessagePrivate;+
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struct iovec;+
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+
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class Q_GUI_EXPORT QUnixSocketRights {+
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public:+
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    QUnixSocketRights(int);+
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    ~QUnixSocketRights();+
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+
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    QUnixSocketRights(const QUnixSocketRights &);+
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    QUnixSocketRights & operator=(const QUnixSocketRights &);+
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+
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    bool isValid() const;+
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+
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    int dupFd() const;+
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    int peekFd() const;+
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+
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private:+
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    friend class QUnixSocket;+
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    QUnixSocketRights(int,int);+
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    QSharedDataPointer<QUnixSocketRightsPrivate> d;+
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};+
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+
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class Q_GUI_EXPORT QUnixSocketMessage {+
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public:+
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    QUnixSocketMessage();+
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    QUnixSocketMessage(const QByteArray &);+
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    QUnixSocketMessage(const QByteArray &, const QList<QUnixSocketRights> &);+
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    QUnixSocketMessage(const QUnixSocketMessage &);+
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    QUnixSocketMessage(const iovec*, int);+
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    QUnixSocketMessage & operator=(const QUnixSocketMessage &);+
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    ~QUnixSocketMessage();+
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+
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    void setBytes(const QByteArray &);+
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    void setRights(const QList<QUnixSocketRights> &);+
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+
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    const QList<QUnixSocketRights> & rights() const;+
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    bool rightsWereTruncated() const;+
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+
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    const QByteArray & bytes() const;+
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+
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    pid_t processId() const;+
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    uid_t userId() const;+
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    gid_t groupId() const;+
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+
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    void setProcessId(pid_t);+
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    void setUserId(uid_t);+
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    void setGroupId(gid_t);+
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+
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    bool isValid() const;+
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private:+
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    friend class QUnixSocket;+
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    friend class QUnixSocketPrivate;+
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    QSharedDataPointer<QUnixSocketMessagePrivate> d;+
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};+
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+
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class Q_GUI_EXPORT QUnixSocket : public QIODevice+
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{+
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    Q_OBJECT+
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public:+
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    QUnixSocket(QObject * = 0);+
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    QUnixSocket(qint64, qint64, QObject * = 0);+
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    virtual ~QUnixSocket();+
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+
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    enum SocketState {+
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        UnconnectedState = QAbstractSocket::UnconnectedState,+
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        HostLookupState = QAbstractSocket::HostLookupState,+
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        ConnectingState = QAbstractSocket::ConnectingState,+
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        ConnectedState = QAbstractSocket::ConnectedState,+
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        BoundState = QAbstractSocket::BoundState,+
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        ClosingState = QAbstractSocket::ClosingState,+
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        ListeningState = QAbstractSocket::ListeningState,+
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    };+
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+
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    enum SocketError { NoError, InvalidPath, ResourceError,+
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                       NonexistentPath, ConnectionRefused, UnknownError,+
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                       ReadFailure, WriteFailure };+
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+
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    bool connect(const QByteArray & path);+
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    bool setSocketDescriptor(int socketDescriptor);+
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    int socketDescriptor() const;+
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    void abort();+
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    void close();+
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+
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    bool flush();+
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+
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    SocketError error() const;+
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+
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    SocketState state() const;+
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    QByteArray address() const;+
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+
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    qint64 bytesAvailable() const;+
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    qint64 bytesToWrite() const;+
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+
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    qint64 readBufferSize() const;+
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    void setReadBufferSize(qint64 size);+
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    qint64 rightsBufferSize() const;+
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    void setRightsBufferSize(qint64 size);+
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+
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    bool canReadLine() const;+
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+
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    qint64 write(const char * data, qint64 maxSize)+
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    { return QIODevice::write(data, maxSize); }+
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    qint64 write(const QByteArray & byteArray)+
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    { return QIODevice::write(byteArray); }+
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    qint64 read(char * data, qint64 maxSize)+
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    { return QIODevice::read(data, maxSize); }+
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    QByteArray read(qint64 maxSize)+
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    { return QIODevice::read(maxSize); }+
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+
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    qint64 write(const QUnixSocketMessage &);+
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    QUnixSocketMessage read();+
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+
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    virtual bool isSequential() const;+
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    virtual bool waitForReadyRead(int msec = 300);+
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    virtual bool waitForBytesWritten(int msec = 300);+
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+
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Q_SIGNALS:+
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    void stateChanged(SocketState socketState);+
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+
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protected:+
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    virtual qint64 readData(char * data, qint64 maxSize);+
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    virtual qint64 writeData (const char * data, qint64 maxSize);+
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+
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private:+
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    QUnixSocket(const QUnixSocket &);+
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    QUnixSocket & operator=(const QUnixSocket &);+
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+
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    QUnixSocketPrivate * d;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QUNIXSOCKET_P_H+
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