HLTEventProcessor.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2019 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Nils Braun                                               *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#pragma once
 
#include <framework/core/Module.h>
#include <framework/core/EventProcessor.h>
#include <framework/core/Path.h>
#include <framework/pcore/zmq/utils/ZMQParent.h>
 
namespace Belle2 {
  class HLTEventProcessor : public EventProcessor {
  public:
    HLTEventProcessor(const std::vector<std::string>& outputAddresses);
 
    void process(PathPtr spath, bool restartFailedWorkers);
 
  private:
    ZMQParent m_parent;
    std::vector<int> m_processList;
    std::vector<std::unique_ptr<zmq::socket_t>> m_sockets;
 
    void sendTerminatedMessage(unsigned int pid, bool waitForConfirmation);
    void runWorkers(PathPtr path, unsigned int numProcesses);
    void processCore(PathPtr path);
 
    bool processEvent(PathIterator moduleIter, bool firstRound);
 
    std::pair<unsigned int, unsigned int> checkChildProcesses();
 
    void release();
 
    bool forkOut();
  };
}