jack2/common/JackNetManager.h

/*
Copyright (C) 2008 Grame

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 General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __JACKNETMANAGER_H__
#define __JACKNETMANAGER_H__

#include "JackNetTool.h"
#include "thread.h"
#include "jack.h"
#include "jslist.h"
#include <list>

namespace Jack
{
    class JackNetMasterManager;

    class JackNetMaster
    {
        friend class JackNetMasterManager;
    private:
        static int SetProcess ( jack_nframes_t nframes, void* arg );

        JackNetMasterManager* fMasterManager;
        session_params_t fParams;
        JackNetSocket fSocket;
        uint fNSubProcess;
        int fNetJumpCnt;
        bool fRunning;

        //jack client
        jack_client_t* fJackClient;
        const char* fClientName;

        //jack ports
        jack_port_t** fAudioCapturePorts;
        jack_port_t** fAudioPlaybackPorts;
        jack_port_t** fMidiCapturePorts;
        jack_port_t** fMidiPlaybackPorts;

        //sync and transport
        int fSyncState;
        net_transport_data_t fTransportData;

        //network headers
        packet_header_t fTxHeader;
        packet_header_t fRxHeader;

        //network buffers
        char* fTxBuffer;
        char* fRxBuffer;
        char* fTxData;
        char* fRxData;

        //jack buffers
        NetAudioBuffer* fNetAudioCaptureBuffer;
        NetAudioBuffer* fNetAudioPlaybackBuffer;
        NetMidiBuffer* fNetMidiCaptureBuffer;
        NetMidiBuffer* fNetMidiPlaybackBuffer;

        //sizes
        int fAudioTxLen;
        int fAudioRxLen;
        int fPayloadSize;

        //monitoring
#ifdef JACK_MONITOR
        static uint fMeasureCnt;
        static uint fMeasurePoints;
        static std::string fMonitorPlotOptions[];
        static std::string fMonitorFieldNames[];
        jack_nframes_t fMeasure[];
        NetMonitor<jack_nframes_t> fMonitor;
#endif

        bool Init();
        void FreePorts();
        void Exit();

        int SetSyncPacket();

        int Send ( char* buffer, size_t size, int flags );
        int Recv ( size_t size, int flags );
        int Process();
    public:
        JackNetMaster ( JackNetMasterManager* manager, session_params_t& params );
        ~JackNetMaster ();
    };

    typedef std::list<JackNetMaster*> master_list_t;
    typedef master_list_t::iterator master_list_it_t;

    class JackNetMasterManager
    {
        friend class JackNetMaster;
    private:
        static int SetSyncCallback ( jack_transport_state_t state, jack_position_t* pos, void* arg );
        static void* NetManagerThread ( void* arg );

        jack_client_t* fManagerClient;
        const char* fManagerName;
        const char* fMulticastIP;
        JackNetSocket fSocket;
        pthread_t fManagerThread;
        master_list_t fMasterList;
        uint32_t fGlobalID;
        bool fRunning;

        void Run();
        JackNetMaster* MasterInit ( session_params_t& params );
        master_list_it_t FindMaster ( uint32_t client_id );
        void KillMaster ( session_params_t* params );
        void SetSlaveName ( session_params_t& params );

        int SyncCallback ( jack_transport_state_t state, jack_position_t* pos );
    public:
        JackNetMasterManager ( jack_client_t* jack_client, const JSList* params );
        ~JackNetMasterManager();

        void Exit();
    };
}

#endif