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#include "blockingsocketprivate.h"
#include <QTcpSocket>
#include <QCoreApplication>
#include <QTimer>
#include <QThread>
BlockingSocketPrivate::BlockingSocketPrivate()
{
}
BlockingSocketPrivate::~BlockingSocketPrivate()
{
}
void BlockingSocketPrivate::setError(QAbstractSocket::SocketError errorCode, const QString& errMsg)
{
this->errorCode = errorCode;
this->errorText = errMsg;
}
bool BlockingSocketPrivate::isConnected()
{
return (socket && socket->isOpen() && socket->state() == QAbstractSocket::ConnectedState);
}
QAbstractSocket::SocketError BlockingSocketPrivate::getErrorCode()
{
return errorCode;
}
void BlockingSocketPrivate::createSocketIfNecessary()
{
// This method is called only when the socket is already called,
// so we're sure the socket is created in the target thread.
if (socket)
return;
socket = new QTcpSocket(this);
connect(socket, SIGNAL(disconnected()), this, SIGNAL(disconnected()));
}
QString BlockingSocketPrivate::getErrorText()
{
return errorText;
}
void BlockingSocketPrivate::handleSendCall(const QByteArray& bytes, bool& result)
{
createSocketIfNecessary();
result = true;
qint64 size = bytes.size();
qint64 totalBytesSent = 0;
qint64 bytesSent = 0;
while (totalBytesSent < size)
{
bytesSent = socket->write(totalBytesSent == 0 ? bytes : bytes.mid(totalBytesSent));
if (bytesSent < 0)
{
result = false;
setError(socket->error(), socket->errorString());
return;
}
totalBytesSent += bytesSent;
}
}
void BlockingSocketPrivate::handleReadCall(qint64 count, int timeout, QByteArray& resultBytes, bool& result)
{
createSocketIfNecessary();
resultBytes.clear();
QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
QTimer timer;
timer.setSingleShot(true);
timer.setInterval(timeout);
timer.start();
while (resultBytes.size() < count && timer.isActive())
{
if (!isConnected())
{
qWarning() << "Blocking socket closed in the middle of reading.";
result = false;
setError(socket->error(), socket->errorString());
return;
}
if (socket->bytesAvailable() == 0)
{
QThread::msleep(1);
QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
continue;
}
resultBytes += socket->read(qMin(socket->bytesAvailable(), count));
}
result = (resultBytes.size() >= count && timer.isActive());
}
void BlockingSocketPrivate::handleConnectCall(const QString& host, int port, bool& result)
{
result = true;
if (isConnected())
return;
createSocketIfNecessary();
socket->connectToHost(host, port);
if (!socket->waitForConnected())
{
result = false;
setError(socket->error(), socket->errorString());
}
}
void BlockingSocketPrivate::handleDisconnectCall()
{
if (!isConnected())
return;
createSocketIfNecessary();
socket->abort();
socket->close();
}
void BlockingSocketPrivate::handleIsConnectedCall(bool& connected)
{
connected = isConnected();
}
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