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    41 

    42 #ifndef QPACKETPROTOCOL_H

    43 #define QPACKETPROTOCOL_H

    44 

    45 #include <QtCore/qobject.h>

    46 #include <QtCore/qdatastream.h>

    47 

    48 QT_BEGIN_HEADER

    49 

    50 QT_BEGIN_NAMESPACE

    51 

    52 QT_MODULE(Declarative)

    53 

    54 class QIODevice;

    55 class QBuffer;

    56 class QPacket;

    57 class QPacketAutoSend;

    58 class QPacketProtocolPrivate;

    59 

    60 class Q_DECLARATIVE_EXPORT QPacketProtocol : public QObject

    61 {

    62 Q_OBJECT

    63 public:

    64     explicit QPacketProtocol(QIODevice * dev, QObject * parent = 0);

    65     virtual ~QPacketProtocol();

    66 

    67     qint32 maximumPacketSize() const;

    68     qint32 setMaximumPacketSize(qint32);

    69 

    70     QPacketAutoSend send();

    71     void send(const QPacket &);

    72 

    73     qint64 packetsAvailable() const;

    74     QPacket read();

    75 

    76     void clear();

    77 

    78     QIODevice * device();

    79 

    80 Q_SIGNALS:

    81     void readyRead();

    82     void invalidPacket();

    83     void packetWritten();

    84 

    85 private:

    86     QPacketProtocolPrivate * d;

    87 };

    88 

    89 

    90 class Q_DECLARATIVE_EXPORT QPacket : public QDataStream

    91 {

    92 public:

    93     QPacket();

    94     QPacket(const QPacket &);

    95     virtual ~QPacket();

    96 

    97     void clear();

    98     bool isEmpty() const;

    99 

   100 protected:

   101     friend class QPacketProtocol;

   102     QPacket(const QByteArray & ba);

   103     QByteArray b;

   104     QBuffer * buf;

   105 };

   106 

   107 class Q_DECLARATIVE_EXPORT QPacketAutoSend : public QPacket

   108 {

   109 public:

   110     virtual ~QPacketAutoSend();

   111 

   112 private:

   113     friend class QPacketProtocol;

   114     QPacketAutoSend(QPacketProtocol *);

   115     QPacketProtocol * p;

   116 };

   117 

   118 QT_END_NAMESPACE

   119 

   120 QT_END_HEADER

   121 

   122 #endif