TimelineSvc.cpp

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#include "TimelineSvc.h"
#include "GaudiKernel/MsgStream.h"
#include "GaudiKernel/StatusCode.h"

#include <fstream>

TimelineSvc::TimelineSvc(const std::string& name, ISvcLocator* svc )
  : base_class( name, svc )
{

  declareProperty("TimelineFile", m_timelineFile = "timeline.csv");
  declareProperty("RecordTimeline", m_isEnabled = false);

}

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TimelineSvc::~TimelineSvc() {

}

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StatusCode
TimelineSvc::initialize() {

  StatusCode sc = Service::initialize();
  if (!sc.isSuccess()) return sc;

  MsgStream log( msgSvc(), name() );
  log << MSG::DEBUG << "initialize" << endmsg;

  m_events.clear();

  return StatusCode::SUCCESS;

}

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StatusCode
TimelineSvc::reinitialize() {

  MsgStream log( msgSvc(), name() );
  log << MSG::DEBUG << "reinitialize" << endmsg;

  m_events.clear();

  return StatusCode::SUCCESS;

}

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StatusCode
TimelineSvc::finalize() {

  if (m_events.size() > 0) {
    MsgStream log( msgSvc(), name() );

    log << MSG::INFO << "Outputting timeline with " << m_events.size() << " entries to file " << m_timelineFile << endmsg;

    outputTimeline();

  }

  return StatusCode::SUCCESS;

}


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void TimelineSvc::registerTimelineEvent(const TimelineEvent & e){

    m_events.push_back(e);

}

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void TimelineSvc::outputTimeline(){

    std::ofstream out(m_timelineFile, std::ofstream::out | std::ofstream::trunc);

    out << "#start end algorithm thread slot event" << std::endl;

    for(const auto & e : m_events){
        out << std::chrono::duration_cast<std::chrono::nanoseconds>(e.start.time_since_epoch()).count() << " "
            << std::chrono::duration_cast<std::chrono::nanoseconds>(e.end.time_since_epoch()).count() << " "
            << e.algorithm << " "
            << e.thread << " "
            << e.slot << " "
            << e.event << std::endl;
    }

    out.close();

}

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DECLARE_COMPONENT(TimelineSvc)