HLTPrescaler.h

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#ifndef HLTPrescaler_H
#define HLTPrescaler_H

#include <atomic>
#include <memory>

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/stream/EDFilter.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/PrescaleService/interface/PrescaleService.h"

// legacy/stage-1 L1T:
#include "DataFormats/L1GlobalTrigger/interface/L1GlobalTriggerReadoutRecord.h"

// stage-2 L1T:
#include "DataFormats/L1TGlobal/interface/GlobalAlgBlk.h"

namespace edm {
  class ConfigurationDescriptions;
}

namespace trigger {
  struct Efficiency {
    Efficiency() : eventCount_(0), acceptCount_(0) {}
    mutable std::atomic<unsigned int> eventCount_;
    mutable std::atomic<unsigned int> acceptCount_;
  };
}  // namespace trigger

class HLTPrescaler : public edm::stream::EDFilter<edm::GlobalCache<trigger::Efficiency> > {
public:
  //
  // construction/destruction
  //
  explicit HLTPrescaler(edm::ParameterSet const& iConfig, const trigger::Efficiency* efficiency);
  ~HLTPrescaler() override;

  static std::unique_ptr<trigger::Efficiency> initializeGlobalCache(edm::ParameterSet const&) {
    return std::make_unique<trigger::Efficiency>();
  }

  //
  // member functions
  //
  static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);
  void beginLuminosityBlock(edm::LuminosityBlock const& lb, edm::EventSetup const& iSetup) override;
  bool filter(edm::Event& iEvent, edm::EventSetup const& iSetup) override;
  void endStream() override;
  static void globalEndJob(const trigger::Efficiency* efficiency);

private:
  //
  //member data
  //

  unsigned int prescaleSet_;

  unsigned int prescaleFactor_;

  unsigned int eventCount_;

  unsigned int acceptCount_;

  unsigned int offsetCount_;
  unsigned int offsetPhase_;

  edm::service::PrescaleService* prescaleService_;

  bool newLumi_;

  edm::InputTag gtDigiTag_;
  edm::EDGetTokenT<L1GlobalTriggerReadoutRecord> gtDigi1Token_;
  edm::EDGetTokenT<GlobalAlgBlkBxCollection> gtDigi2Token_;

  static const unsigned int prescaleSeed_;
};

#endif