udpsocketpool.h

//------------------------------------------------------------------------------
// udpsocketpool.h
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2017 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------
#ifndef id42cca172_73df_4d48_99c6_32b537985549
#define id42cca172_73df_4d48_99c6_32b537985549

#include "dptr.h"
#include <QHostAddress>
#include <QUdpSocket>

// Qt4 compatilbity, not really be the best place for this but the days of Qt4
// support should be numbered.
#if QT_VERSION < 0x050000
#define Q_NULLPTR NULL
#endif

class UdpSocketPool : public QObject
{
        Q_OBJECT
        Q_DISABLE_COPY(UdpSocketPool);

public:
        UdpSocketPool(int sliceSize = 25);
        ~UdpSocketPool();

        QUdpSocket *acquire(const QHostAddress &address, quint16 port);
        QUdpSocket *acquireMasterSocket();
        void releaseAll();

        bool hasPendingDatagrams() const;
        QByteArray readNextDatagram(QHostAddress *address = Q_NULLPTR, quint16 *port = Q_NULLPTR);

signals:
        void readyRead();

private:
        DPtr<UdpSocketPool> d;
};

#endif