99048c1c
 Steven de Ridder
Initial commit. d...
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/* ****************************************************************************
* Copyright 2019 Open Systems Development BV *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
* DEALINGS IN THE SOFTWARE. *
* ***************************************************************************/
#include "tcpsocket.h"
#include "log.h"
#include <QHostAddress>
#include <QTcpSocket>
#include <QTimer>
#include <QDataStream>
namespace osdev {
namespace components {
TcpSocket::TcpSocket( const QString& ipAddress, int portNumber )
: m_pSocket(new QTcpSocket(this))
, m_blockSize(0)
, m_dataBuffer()
, m_pTimer( new QTimer() )
{
// First we connect the timer to this class
connect(m_pTimer.get(), SIGNAL(timeout()), this, SLOT(chkSendBuffer()));
this->connectSocketSignals();
m_pSocket->connectToHost( QHostAddress( ipAddress ), static_cast<quint16>(portNumber) );
if( !m_pSocket->waitForConnected( 3000 ) )
{
LogDebug("interfaceplugin", "Socket failed to connect.");
LogObject("interfaceplugin", this);
}
else
{
LogDebug("interfaceplugin", "Client connected : ");
LogObject("interfaceplugin", m_pSocket);
}
}
TcpSocket::TcpSocket(QTcpSocket *pSocket)
: m_pSocket(pSocket)
, m_blockSize(0)
, m_dataBuffer()
, m_pTimer( new QTimer() )
{
Q_ASSERT(pSocket);
connect(m_pTimer.get(), SIGNAL(timeout()), this, SLOT(chkSendBuffer()));
this->connectSocketSignals();
}
TcpSocket::~TcpSocket()
{
// Implicitly deletes m_pSocket if this object is its parent
}
void TcpSocket::slotReadyRead()
{
// Let the poolmanager know we are busy receiving data at the moment and are
// unavailable for anything else.
emit signalReceivingData( this );
QDataStream in( m_pSocket );
in.setVersion( QDataStream::Qt_5_4 );
if( m_blockSize == 0 )
{
if( m_pSocket->bytesAvailable() < static_cast<int>(sizeof( quint32 ) ) )
{
return;
}
in >> m_blockSize;
}
if( m_pSocket->bytesAvailable() < m_blockSize )
{
return;
}
in >> m_dataBuffer;
emit signalDataReceived( m_dataBuffer, this );
m_blockSize = 0; // Reset the blockSize for next read.
m_dataBuffer.clear(); // Reset the buffer for the next read.
}
void TcpSocket::slotSendData( const QString &sData, TcpSocket *pSocket )
{
if( pSocket != this || sData.isNull() ) {
return;
}
QByteArray block;
QDataStream out( &block, QIODevice::WriteOnly );
out.setVersion( QDataStream::Qt_5_4 );
out << block.size();
out << sData;
m_pSocket->write( block );
chkSendBuffer();
}
void TcpSocket::slotSetSocket(QTcpSocket* pSocket )
{
if(m_pSocket) {
disconnectSocketSignals();
}
m_pSocket = pSocket;
connectSocketSignals();
}
void TcpSocket::chkSendBuffer()
{
m_pTimer->stop();
if( m_pSocket->bytesToWrite() > 0 )
{
m_pSocket->flush();
m_pTimer->start( 500 );
}
else
{
emit signalDataSent( this );
}
}
void TcpSocket::slotConnected()
{
emit signalConnected( this );
}
void TcpSocket::slotDisconnected()
{
emit signalDisconnected( this );
}
QString TcpSocket::showError()
{
if( m_pSocket )
{
return m_pSocket->errorString();
}
else
{
return "No socket available";
}
}
void TcpSocket::connectSocketSignals()
{
Q_ASSERT(m_pSocket);
// Connect the required signals and slots to gain control.
// First for receiving data.
connect( m_pSocket, SIGNAL( readyRead() ),
this, SLOT( slotReadyRead() ) );
connect( m_pSocket, SIGNAL( connected() ),
this, SLOT( slotConnected() ) );
connect( m_pSocket, SIGNAL( disconnected() ),
this, SLOT( slotDisconnected() ) );
}
void TcpSocket::disconnectSocketSignals()
{
Q_ASSERT(m_pSocket);
// Connect the required signals and slots to gain control.
// First for receiving data.
disconnect( m_pSocket, SIGNAL( readyRead() ),
this, SLOT( slotReadyRead() ) );
disconnect( m_pSocket, SIGNAL( connected() ),
this, SLOT( slotConnected() ) );
disconnect( m_pSocket, SIGNAL( disconnected() ),
this, SLOT( slotDisconnected() ) );
}
bool TcpSocket::isConnected()
{
return m_pSocket && m_pSocket->state() == QTcpSocket::ConnectedState;
}
}
}
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