QByteDataBuffer Class Reference

#include <qbytedata_p.h>

Public Functions
void	append (QByteDataBuffer &other)
void	append (const QByteArray &bd)
qint64	bufferCount () const
qint64	byteAmount () const
bool	canReadLine () const
void	clear ()
char	getChar ()
bool	isEmpty () const
QByteArray &	operator[] (int i)
void	prepend (QByteArray &bd)
	QByteDataBuffer ()
QByteArray	read ()
QByteArray	read (qint64 amount)
qint64	read (char *dst, qint64 amount)
QByteArray	readAll ()
qint64	sizeNextBlock () const
	~QByteDataBuffer ()

Properties
qint64	bufferCompleteSize
QList< QByteArray >	buffers

Detailed Description

Definition at line 62 of file qbytedata_p.h.

Constructors and Destructors

QByteDataBuffer()

QByteDataBuffer::QByteDataBuffer ( )

inline

Definition at line 68 of file qbytedata_p.h.

                      : bufferCompleteSize(0)
    {
    }

~QByteDataBuffer()

QByteDataBuffer::~QByteDataBuffer ( )

inline

Definition at line 72 of file qbytedata_p.h.

    {
        clear();
    }

Functions

append() [1/2]

void QByteDataBuffer::append ( QByteDataBuffer &  other )

inline

Definition at line 77 of file qbytedata_p.h.

Referenced by QNetworkReplyImplPrivate::_q_copyReadyRead(), QNetworkReplyImplPrivate::appendDownstreamData(), QHttpNetworkReplyPrivate::appendUncompressedReplyData(), QNetworkAccessFtpBackend::ftpReadyRead(), QHttpNetworkReplyPrivate::readBodyFast(), QNetworkAccessFileBackend::readMoreFromFile(), QHttpNetworkReplyPrivate::readReplyBodyRaw(), and QNetworkAccessHttpBackend::replyDownloadData().

    {
        if (other.isEmpty())
            return;

        buffers.append(other.buffers);
        bufferCompleteSize += other.byteAmount();
    }

append() [2/2]

void QByteDataBuffer::append ( const QByteArray &  bd )

inline

Definition at line 87 of file qbytedata_p.h.

    {
        if (bd.isEmpty())
            return;

        buffers.append(bd);
        bufferCompleteSize += bd.size();
    }

bufferCount()

qint64 QByteDataBuffer::bufferCount ( ) const

inline

Definition at line 187 of file qbytedata_p.h.

Referenced by QHttpNetworkReplyPrivate::appendCompressedReplyData(), and QNetworkReplyImplPrivate::appendDownstreamData().

    {
        return buffers.length();
    }

byteAmount()

qint64 QByteDataBuffer::byteAmount ( ) const

inline

Definition at line 181 of file qbytedata_p.h.

Referenced by append(), isEmpty(), QNetworkReplyImplPrivate::nextDownstreamBlockSize(), read(), and readAll().

    {
        return bufferCompleteSize;
    }

canReadLine()

bool QByteDataBuffer::canReadLine ( ) const

inline

Definition at line 210 of file qbytedata_p.h.

                                    {
        for (int i = 0; i < buffers.length(); i++)
            if (buffers.at(i).contains('\n'))
                return true;
        return false;
    }

clear()

void QByteDataBuffer::clear ( )

inline

Definition at line 174 of file qbytedata_p.h.

Referenced by QHttpNetworkReplyPrivate::appendCompressedReplyData(), QNetworkReplyImplPrivate::appendDownstreamData(), QHttpNetworkReplyPrivate::appendUncompressedReplyData(), QHttpNetworkReplyPrivate::eraseData(), QNetworkAccessHttpBackend::replyDownloadData(), and ~QByteDataBuffer().

    {
        buffers.clear();
        bufferCompleteSize = 0;
    }

getChar()

char QByteDataBuffer::getChar ( )

inline

Definition at line 167 of file qbytedata_p.h.

    {
        char c;
        read(&c, 1);
        return c;
    }

isEmpty()

bool QByteDataBuffer::isEmpty ( ) const

inline

Definition at line 192 of file qbytedata_p.h.

Referenced by QHttpNetworkConnectionChannel::_q_receiveReply(), and append().

    {
        return byteAmount() == 0;
    }

operator[]()

QByteArray& QByteDataBuffer::operator[] ( int  i )

inline

Definition at line 205 of file qbytedata_p.h.

    {
        return buffers[i];
    }

prepend()

void QByteDataBuffer::prepend ( QByteArray &  bd )

inline

Definition at line 96 of file qbytedata_p.h.

    {
        if (bd.isEmpty())
            return;

        buffers.prepend(bd);
        bufferCompleteSize += bd.size();
    }

read() [1/3]

QByteArray QByteDataBuffer::read ( )

inline

Definition at line 107 of file qbytedata_p.h.

Referenced by getChar(), read(), and readAll().

    {
        bufferCompleteSize -= buffers.first().size();
        return buffers.takeFirst();
    }

read() [2/3]

QByteArray QByteDataBuffer::read ( qint64  amount )

inline

Definition at line 122 of file qbytedata_p.h.

    {
        amount = qMin(byteAmount(), amount);
        QByteArray byteData;
        byteData.resize(amount);
        read(byteData.data(), byteData.size());
        return byteData;
    }

read() [3/3]

qint64 QByteDataBuffer::read ( char *  dst, qint64  amount  )

inline

Definition at line 133 of file qbytedata_p.h.

    {
        amount = qMin(amount, byteAmount());
        qint64 originalAmount = amount;
        char *writeDst = dst;

        while (amount > 0) {
            QByteArray first = buffers.takeFirst();
            if (amount >= first.size()) {
                // take it completely
                bufferCompleteSize -= first.size();
                amount -= first.size();
                memcpy(writeDst, first.constData(), first.size());
                writeDst += first.size();
                first.clear();
            } else {
                // take a part of it & it is the last one to take
                bufferCompleteSize -= amount;
                memcpy(writeDst, first.constData(), amount);

                qint64 newFirstSize = first.size() - amount;
                QByteArray newFirstData;
                newFirstData.resize(newFirstSize);
                memcpy(newFirstData.data(), first.constData() + amount, newFirstSize);
                buffers.prepend(newFirstData);

                amount = 0;
                first.clear();
            }
        }

        return originalAmount;
    }

readAll()

QByteArray QByteDataBuffer::readAll ( )

inline

Definition at line 115 of file qbytedata_p.h.

    {
        return read(byteAmount());
    }

sizeNextBlock()

qint64 QByteDataBuffer::sizeNextBlock ( ) const

inline

Definition at line 197 of file qbytedata_p.h.

    {
        if(buffers.isEmpty())
            return 0;
        else
            return buffers.first().size();
    }

Properties

bufferCompleteSize

qint64 QByteDataBuffer::bufferCompleteSize

private

Definition at line 66 of file qbytedata_p.h.

Referenced by byteAmount().

buffers

QList<QByteArray> QByteDataBuffer::buffers

private

Definition at line 65 of file qbytedata_p.h.

Referenced by append().

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The documentation for this class was generated from the following file:

• /src/corelib/tools/qbytedata_p.h