Control2Data.cxx

Go to the documentation of this file.

/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "Control2Data.hxx"

namespace CLAM {

void Control2DataConfig::DefaultInit(void)
{
        AddNumControls();
        UpdateData();
        SetNumControls(0);
}

Control2Data::Control2Data(const Config& c)
        : mStop("stop",this)
{
        Configure(c);
}

bool Control2Data::ConcreteConfigure(const ProcessingConfig& c)
{
        CopyAsConcreteConfig(mConfig, c);
        int nControls=mConfig.GetNumControls();
        
        // Initializing InControlArray
        mInArray.Resize(nControls, "array_control", this, &Control2Data::EnqueueControl);

        // Buffer Queues initialization
        BufferQueueInit( nControls );
        //Initialize mStop to false
        mStop.DoControl(0);

        return true;

}

bool Control2Data::Do()
{                       
        IdxList::iterator ListIt;                               
        Mutex::ScopedLock lock( mControl2DataDoMutex );
                
        IdxList qs = GetQueues();
        if (!qs.empty())  
        { 
                for (ListIt=qs.begin();ListIt!=qs.end() ;ListIt++ )
                {                                       
                        TControlData val = PopControl( (*ListIt) );
                        GenerateOutputData((*ListIt),val); 
                }       
        }
        return !mStop.GetLastValue();
}

void Control2Data::BufferQueueInit( int ncontrols )
{
        Mutex::ScopedLock lock( mDataMutex );

        mDataQueues.resize(0);
        mDataQueues.reserve(ncontrols);
        for (int j = 0; j < ncontrols  ;j ++ )
        {
                mDataQueues.push_back( TQueue() );
        }

}

const ProcessingConfig&  Control2Data::GetConfig() const 
{ 
        return mConfig; 
}


void Control2Data::EnqueueControl(unsigned id, TControlData data)
{
        Mutex::ScopedLock lock( mDataMutex );
        
#ifdef HAVE_STANDARD_VECTOR_AT
        mDataQueues.at(id).push(data);
#else
        mDataQueues[id].push(data);
#endif

}

Control2Data::IdxList Control2Data::GetQueues()
{
        IdxList modifiedQs;
        std::vector<TQueue>::iterator it;

        int k = 0;
        for (it=mDataQueues.begin(); it != mDataQueues.end() ; it++ )
        {
                if (!(*it).empty())
                {
                        modifiedQs.push_back(k);
                }
                k++;
        }
        return modifiedQs;
}

bool Control2Data::Empty(unsigned id)
{
        Mutex::ScopedLock lock( mDataMutex );
        
#ifdef HAVE_STANDARD_VECTOR_AT
        return mDataQueues.at(id).empty();
#else
        return mDataQueues[id].empty();
#endif

}

TControlData Control2Data::PopControl(unsigned id)
{
        Mutex::ScopedLock lock( mDataMutex );
#ifdef HAVE_STANDARD_VECTOR_AT
        TControlData ret=mDataQueues.at(id).front();
#else
        TControlData ret=mDataQueues[id].front();
#endif
        mDataQueues[id].pop();
        return ret;
}

void Control2Data::ControlCallbackId(int id, TControlData val)
{
        EnqueueControl(id,val);
}

}; //namespace CLAM