source: trunk/src/network/access/qnetworkaccessdebugpipebackend.cpp@ 138

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#include "qnetworkaccessdebugpipebackend_p.h"
#include "QtCore/qdatastream.h"

QT_BEGIN_NAMESPACE

#ifdef QT_BUILD_INTERNAL

enum {
    ReadBufferSize = 16384,
    WriteBufferSize = ReadBufferSize
};

struct QNetworkAccessDebugPipeBackend::DataPacket
{
    QList<QPair<QByteArray, QByteArray> > headers;
    QByteArray data;
};

QNetworkAccessBackend *
QNetworkAccessDebugPipeBackendFactory::create(QNetworkAccessManager::Operation op,
                                              const QNetworkRequest &request) const
{
    // is it an operation we know of?
    switch (op) {
    case QNetworkAccessManager::GetOperation:
    case QNetworkAccessManager::PutOperation:
        break;

    default:
        // no, we can't handle this operation
        return 0;
    }

    QUrl url = request.url();
    if (url.scheme() == QLatin1String("debugpipe"))
        return new QNetworkAccessDebugPipeBackend;
    return 0;
}

QNetworkAccessDebugPipeBackend::QNetworkAccessDebugPipeBackend()
    : incomingPacketSize(0), bareProtocol(false)
{
}

QNetworkAccessDebugPipeBackend::~QNetworkAccessDebugPipeBackend()
{
    socket.disconnect(this);    // we're not interested in the signals at this point
}

void QNetworkAccessDebugPipeBackend::open()
{
    socket.connectToHost(url().host(), url().port(12345));
    socket.setReadBufferSize(ReadBufferSize);
    connect(&socket, SIGNAL(readyRead()), SLOT(socketReadyRead()));
    connect(&socket, SIGNAL(bytesWritten(qint64)), SLOT(socketBytesWritten(qint64)));
    connect(&socket, SIGNAL(error(QAbstractSocket::SocketError)), SLOT(socketError()));
    connect(&socket, SIGNAL(disconnected()), SLOT(socketDisconnected()));

    bareProtocol = url().queryItemValue(QLatin1String("bare")) == QLatin1String("1");

    if (!bareProtocol) {
        // "Handshake":
        // send outgoing metadata and the URL being requested
        DataPacket packet;
        //packet.metaData = request().metaData();
        packet.data = url().toEncoded();
        send(packet);
    }
}

void QNetworkAccessDebugPipeBackend::closeDownstreamChannel()
{
    if (operation() == QNetworkAccessManager::GetOperation)
        socket.disconnectFromHost();
}

void QNetworkAccessDebugPipeBackend::closeUpstreamChannel()
{
    if (operation() == QNetworkAccessManager::PutOperation)
        socket.disconnectFromHost();
    else if (operation() == QNetworkAccessManager::PostOperation) {
        send(DataPacket());
    }
}

bool QNetworkAccessDebugPipeBackend::waitForDownstreamReadyRead(int ms)