ioqueue.h

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// Copyright (C) 2001-2015 Federico Montesino Pouzols <fedemp@altern.org>.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with GNU ccRTP.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
//
// This exception applies only to the code released under the name GNU
// ccRTP.  If you copy code from other releases into a copy of GNU
// ccRTP, as the General Public License permits, the exception does
// not apply to the code that you add in this way.  To avoid misleading
// anyone as to the status of such modified files, you must delete
// this exception notice from them.
//
// If you write modifications of your own for GNU ccRTP, it is your choice
// whether to permit this exception to apply to your modifications.
// If you do not wish that, delete this exception notice.
//

#ifndef CCXX_RTP_IOQUEUE_H_
#define CCXX_RTP_IOQUEUE_H_

#include <ccrtp/iqueue.h>
#include <ccrtp/oqueue.h>

NAMESPACE_COMMONCPP

class __EXPORT RTPDataQueue :
    public IncomingDataQueue,
    public OutgoingDataQueue
{
public:
    typedef enum {
        tosBestEffort,      
        tosEnhanced         
    }       Tos;

    inline void
    setTypeOfService(Tos tos)
    { typeOfService = tos; }

    inline void enableStack()
    { dataServiceActive = true; }

        inline void disableStack()
        { dataServiceActive = false; }

    inline bool
    isActive() const
    { return dataServiceActive; }

    uint32
    getCurrentTimestamp() const;

    void
    setSessionBandwidth(uint32 bw)
    { sessionBw = bw; }

    uint32
    getDefaultSessionBandwidth() const
    { return defaultSessionBw; }

    uint32
    getSessionBandwidth() const
    { return sessionBw; }

    inline void
    setTimeclock()
    { timeclock.setTimer(); }

    inline timeout_t
    getTimeclock() const
    { return timeclock.getElapsed(); }

protected:

    RTPDataQueue(uint32 size = defaultMembersHashSize);

    RTPDataQueue(uint32* ssrc, uint32 size = defaultMembersHashSize);

    inline virtual
    ~RTPDataQueue()
    { endQueue(); }

        inline virtual void
    timerTick()
    { return; }

    void renewLocalSSRC()
        {IncomingDataQueue::renewLocalSSRC();}

private:
    RTPDataQueue(const RTPDataQueue &o);

    RTPDataQueue&
    operator=(const RTPDataQueue &o);

    void
    initQueue();

protected:
    void
    endQueue();

    virtual bool
    isPendingData(microtimeout_t timeout) = 0;

private:
    // true if connection "active"
    volatile bool dataServiceActive;
    Tos typeOfService;
    TimerPort timeclock;
    /* RTP session bandwidth control */
    static const uint32 defaultSessionBw;
    uint32 sessionBw;


};
 // ioqueue

END_NAMESPACE

#endif  //CCXX_RTP_IOQUEUE_H_

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