// Copyright CERN and copyright holders of ALICE O2. This software is

// distributed under the terms of the GNU General Public License v3 (GPL

// Version 3), copied verbatim in the file "COPYING".

//

// See http://alice-o2.web.cern.ch/license for full licensing information.

//

// In applying this license CERN does not waive the privileges and immunities

// granted to it by virtue of its status as an Intergovernmental Organization

// or submit itself to any jurisdiction.

#include "Framework/runDataProcessing.h"

#include "Framework/AnalysisTask.h"

#include <TFile.h>

#include <TH1F.h>

using namespace o2;

using namespace o2::framework;

// This is a very simple example showing how to iterate over tracks

// and operate on them.

// FIXME: this should really inherit from AnalysisTask but

// we need GCC 7.4+ for that

struct ATask {

void process(aod::Collision const&, aod::Tracks const& tracks)

{

// FIXME: to see some output, we create the histogram

// for every timeframe. In general this is not the way it

// should be done.

LOGF(info, "Tracks for collision: %d", tracks.size());

}

};

WorkflowSpec defineDataProcessing(ConfigContext const&)

{

return WorkflowSpec{

adaptAnalysisTask<ATask>("collision-tracks-iteration-tutorial")};

}